initial commit

2026-07-21 14:08:10 +07:00
commit f7cf118326
533 changed files with 41762 additions and 0 deletions
@@ -0,0 +1,88 @@
+using Indotalent.Data.Entities;
+using Indotalent.Infrastructure.Authentication.Firebase;
+using Indotalent.Infrastructure.Authentication.Identity;
+using Indotalent.Infrastructure.Authentication.Keycloak;
+using Indotalent.Infrastructure.Database;
+using Microsoft.AspNetCore.Authentication.JwtBearer;
+using Microsoft.AspNetCore.Components.Authorization;
+using Microsoft.AspNetCore.Identity;
+using Microsoft.IdentityModel.Tokens;
+using System.Text;
+
+namespace Indotalent.Infrastructure.Authentication;
+
+public static class DI
+{
+    public static IServiceCollection AddAuthenticationService(this IServiceCollection services, IConfiguration configuration)
+    {
+        //Identity
+        services.AddScoped<IdentityService>();
+
+        services.AddHttpContextAccessor();
+        services.AddCascadingAuthenticationState();
+
+        services.Configure<JwtSettingsModel>(configuration.GetSection("JwtSettings"));
+        services.AddScoped<TokenProvider>();
+
+        var identitySettings = configuration.GetSection("IdentitySettings").Get<IdentitySettingsModel>() ?? new IdentitySettingsModel();
+
+        services.AddIdentity<ApplicationUser, IdentityRole>(options =>
+        {
+            options.Password.RequireDigit = identitySettings.Password.RequireDigit;
+            options.Password.RequiredLength = identitySettings.Password.RequiredLength;
+            options.Password.RequireNonAlphanumeric = identitySettings.Password.RequireNonAlphanumeric;
+            options.Password.RequireUppercase = identitySettings.Password.RequireUppercase;
+            options.Password.RequireLowercase = identitySettings.Password.RequireLowercase;
+            options.SignIn.RequireConfirmedAccount = identitySettings.SignIn.RequireConfirmedAccount;
+        })
+        .AddEntityFrameworkStores<AppDbContext>()
+        .AddDefaultTokenProviders()
+        .AddClaimsPrincipalFactory<CustomClaimsPrincipalFactory>();
+
+        services.AddScoped<AuthenticationStateProvider, IdentityRevalidatingAuthenticationStateProvider>();
+
+        services.AddAuthentication(options =>
+        {
+            options.DefaultScheme = IdentityConstants.ApplicationScheme;
+            options.DefaultSignInScheme = IdentityConstants.ApplicationScheme;
+            options.DefaultAuthenticateScheme = IdentityConstants.ApplicationScheme;
+        })
+        .AddJwtBearer(JwtBearerDefaults.AuthenticationScheme, options =>
+        {
+            var jwtSettings = configuration.GetSection("JwtSettings").Get<JwtSettingsModel>();
+            options.TokenValidationParameters = new TokenValidationParameters
+            {
+                ValidateIssuer = true,
+                ValidateAudience = true,
+                ValidateLifetime = true,
+                ValidateIssuerSigningKey = true,
+                ValidIssuer = jwtSettings?.Issuer,
+                ValidAudience = jwtSettings?.Audience,
+                IssuerSigningKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(jwtSettings?.Key ?? "PRAGMATIC_FIX_KEY_MIN_32_CHARS_LONG_2026"))
+            };
+        });
+
+        services.ConfigureApplicationCookie(options =>
+        {
+            options.LoginPath = identitySettings.Cookies.LoginPath;
+            options.LogoutPath = identitySettings.Cookies.LogoutPath;
+            options.AccessDeniedPath = identitySettings.Cookies.AccessDeniedPath;
+            options.Cookie.Name = identitySettings.Cookies.Name;
+            options.ExpireTimeSpan = TimeSpan.FromDays(identitySettings.Cookies.ExpireDays);
+            options.Cookie.HttpOnly = true;
+            options.Cookie.SecurePolicy = CookieSecurePolicy.Always;
+            options.Cookie.SameSite = SameSiteMode.Lax;
+        });
+
+
+        //Firebase
+
+        services.AddScoped<FirebaseService>();
+
+        //Keycloak
+
+        services.AddScoped<KeycloakService>();
+
+        return services;
+    }
+}
@@ -0,0 +1,13 @@
+using Indotalent.Infrastructure.Authentication.Identity;
+using Microsoft.Extensions.Options;
+
+namespace Indotalent.Infrastructure.Authentication.Firebase;
+
+public class FirebaseService(IOptions<IdentitySettingsModel> options)
+{
+    private readonly IdentitySettingsModel _settings = options.Value;
+
+    public IdentitySettingsModel GetConfiguration() => _settings;
+
+    public FirebaseSettingsModel GetDefaultAdmin() => _settings.SsoFirebase;
+}
@@ -0,0 +1,13 @@
+namespace Indotalent.Infrastructure.Authentication.Firebase;
+
+public class FirebaseSettingsModel
+{
+    public bool IsUsed { get; set; }
+    public bool OpenForPublic { get; set; }
+    public string ApiKey { get; set; } = string.Empty;
+    public string AuthDomain { get; set; } = string.Empty;
+    public string ProjectId { get; set; } = string.Empty;
+    public string StorageBucket { get; set; } = string.Empty;
+    public string MessagingSenderId { get; set; } = string.Empty;
+    public string AppId { get; set; } = string.Empty;
+}
@@ -0,0 +1,10 @@
+namespace Indotalent.Infrastructure.Authentication.Identity;
+
+public class CookieSettings
+{
+    public string Name { get; set; } = string.Empty;
+    public string LoginPath { get; set; } = string.Empty;
+    public string LogoutPath { get; set; } = string.Empty;
+    public string AccessDeniedPath { get; set; } = string.Empty;
+    public int ExpireDays { get; set; }
+}
@@ -0,0 +1,26 @@
+using Indotalent.Data.Entities;
+using Microsoft.AspNetCore.Identity;
+using Microsoft.Extensions.Options;
+using System.Security.Claims;
+
+namespace Indotalent.Infrastructure.Authentication.Identity;
+
+public class CustomClaimsPrincipalFactory : UserClaimsPrincipalFactory<ApplicationUser, IdentityRole>
+{
+    public CustomClaimsPrincipalFactory(
+        UserManager<ApplicationUser> userManager,
+        RoleManager<IdentityRole> roleManager,
+        IOptions<IdentityOptions> optionsAccessor)
+        : base(userManager, roleManager, optionsAccessor)
+    {
+    }
+
+    protected override async Task<ClaimsIdentity> GenerateClaimsAsync(ApplicationUser user)
+    {
+        var identity = await base.GenerateClaimsAsync(user);
+
+        identity.AddClaim(new Claim(ClaimTypes.GivenName, user.FullName ?? string.Empty));
+
+        return identity;
+    }
+}
@@ -0,0 +1,8 @@
+namespace Indotalent.Infrastructure.Authentication.Identity;
+
+public class DefaultAdminSettings
+{
+    public string Email { get; set; } = string.Empty;
+    public string Password { get; set; } = string.Empty;
+    public string FullName { get; set; } = string.Empty;
+}
@@ -0,0 +1,16 @@
+using Indotalent.Data.Entities;
+
+namespace Indotalent.Infrastructure.Authentication.Identity;
+
+public static class DefaultUserConfig
+{
+    public static ApplicationUser GetAdminUser(DefaultAdminSettings settings) => new()
+    {
+        FullName = settings.FullName,
+        UserName = settings.Email,
+        Email = settings.Email,
+        EmailConfirmed = true,
+        CreatedAt = DateTime.Now,
+        IsActive = true
+    };
+}
@@ -0,0 +1,56 @@
+using Indotalent.Data.Entities;
+using Indotalent.Infrastructure.Authentication.Identity;
+using Microsoft.AspNetCore.Components.Authorization;
+using Microsoft.AspNetCore.Components.Server;
+using Microsoft.AspNetCore.Identity;
+using System.Security.Claims;
+
+internal sealed class IdentityRevalidatingAuthenticationStateProvider : RevalidatingServerAuthenticationStateProvider
+{
+    private readonly IServiceScopeFactory _scopeFactory;
+    private readonly IHttpContextAccessor _httpContextAccessor;
+    private readonly TokenProvider _tokenProvider;
+
+    public IdentityRevalidatingAuthenticationStateProvider(
+        ILoggerFactory loggerFactory,
+        IServiceScopeFactory scopeFactory,
+        IHttpContextAccessor httpContextAccessor,
+        TokenProvider tokenProvider)
+        : base(loggerFactory)
+    {
+        _scopeFactory = scopeFactory;
+        _httpContextAccessor = httpContextAccessor;
+        _tokenProvider = tokenProvider;
+
+        var context = httpContextAccessor.HttpContext;
+        if (context != null)
+        {
+            var token = context.Request.Cookies["X-Auth-Token"];
+            var refreshToken = context.Request.Cookies["X-Refresh-Token"];
+            if (!string.IsNullOrEmpty(token))
+            {
+                _tokenProvider.Token = token;
+            }
+            if (!string.IsNullOrEmpty(refreshToken))
+            {
+                _tokenProvider.RefreshToken = refreshToken;
+            }
+        }
+    }
+
+    protected override TimeSpan RevalidationInterval => TimeSpan.FromMinutes(30);
+
+    protected override async Task<bool> ValidateAuthenticationStateAsync(
+        AuthenticationState authenticationState, CancellationToken cancellationToken)
+    {
+        await using var scopeAsync = _scopeFactory.CreateAsyncScope();
+        var userManager = scopeAsync.ServiceProvider.GetRequiredService<UserManager<ApplicationUser>>();
+        return await ValidateSecurityStampAsync(userManager, authenticationState.User);
+    }
+
+    private async Task<bool> ValidateSecurityStampAsync(UserManager<ApplicationUser> userManager, ClaimsPrincipal principal)
+    {
+        var user = await userManager.GetUserAsync(principal);
+        return user != null;
+    }
+}
@@ -0,0 +1,24 @@
+using Indotalent.Infrastructure.Authentication.Firebase;
+using Indotalent.Infrastructure.Authentication.Keycloak;
+using Microsoft.Extensions.Options;
+
+namespace Indotalent.Infrastructure.Authentication.Identity;
+
+public class IdentityService(IOptions<IdentitySettingsModel> options)
+{
+    private readonly IdentitySettingsModel _settings = options.Value;
+
+    public IdentitySettingsModel GetConfiguration() => _settings;
+
+    public DefaultAdminSettings GetDefaultAdmin() => _settings.DefaultAdmin;
+
+    public PasswordSettings GetPasswordPolicy() => _settings.Password;
+
+    public CookieSettings GetCookieSettings() => _settings.Cookies;
+
+    public SignInSettings GetSignInSettings() => _settings.SignIn;
+
+    public FirebaseSettingsModel GetFirebaseSettings() => _settings.SsoFirebase;
+
+    public KeycloakSettingsModel GetKeycloakSettings() => _settings.SsoKeycloak;
+}
@@ -0,0 +1,14 @@
+using Indotalent.Infrastructure.Authentication.Firebase;
+using Indotalent.Infrastructure.Authentication.Keycloak;
+
+namespace Indotalent.Infrastructure.Authentication.Identity;
+
+public class IdentitySettingsModel
+{
+    public PasswordSettings Password { get; set; } = new();
+    public CookieSettings Cookies { get; set; } = new();
+    public DefaultAdminSettings DefaultAdmin { get; set; } = new();
+    public SignInSettings SignIn { get; set; } = new();
+    public FirebaseSettingsModel SsoFirebase { get; set; } = new();
+    public KeycloakSettingsModel SsoKeycloak { get; set; } = new();
+}
@@ -0,0 +1,9 @@
+namespace Indotalent.Infrastructure.Authentication.Identity;
+
+public class JwtSettingsModel
+{
+    public string Key { get; set; } = string.Empty;
+    public string Issuer { get; set; } = string.Empty;
+    public string Audience { get; set; } = string.Empty;
+    public int DurationInMinutes { get; set; }
+}
@@ -0,0 +1,11 @@
+namespace Indotalent.Infrastructure.Authentication.Identity;
+
+public class PasswordSettings
+{
+    public bool RequireDigit { get; set; }
+    public int RequiredLength { get; set; }
+    public bool RequireNonAlphanumeric { get; set; }
+    public bool RequireUppercase { get; set; }
+    public bool RequireLowercase { get; set; }
+    public int RequiredUniqueChars { get; set; }
+}
@@ -0,0 +1,6 @@
+namespace Indotalent.Infrastructure.Authentication.Identity;
+
+public class SignInSettings
+{
+    public bool RequireConfirmedAccount { get; set; }
+}
@@ -0,0 +1,7 @@
+namespace Indotalent.Infrastructure.Authentication.Identity;
+
+public class TokenProvider
+{
+    public string? Token { get; set; }
+    public string? RefreshToken { get; set; }
+}
@@ -0,0 +1,13 @@
+using Indotalent.Infrastructure.Authentication.Identity;
+using Microsoft.Extensions.Options;
+
+namespace Indotalent.Infrastructure.Authentication.Keycloak;
+
+public class KeycloakService(IOptions<IdentitySettingsModel> options)
+{
+    private readonly IdentitySettingsModel _settings = options.Value;
+
+    public IdentitySettingsModel GetConfiguration() => _settings;
+
+    public KeycloakSettingsModel GetPasswordPolicy() => _settings.SsoKeycloak;
+}
@@ -0,0 +1,11 @@
+namespace Indotalent.Infrastructure.Authentication.Keycloak;
+
+public class KeycloakSettingsModel
+{
+    public bool IsUsed { get; set; }
+    public string Authority { get; set; } = string.Empty;
+    public string ClientId { get; set; } = string.Empty;
+    public string ClientSecret { get; set; } = string.Empty;
+    public string RequireHttpsMetadata { get; set; } = string.Empty;
+}
+
@@ -0,0 +1,10 @@
+namespace Indotalent.Infrastructure.Authorization.Identity;
+
+public static class ApplicationRoles
+{
+    public const string Admin = "Admin";
+    public const string Member = "Member";
+    public const string Guest = "Guest";
+
+    public static IReadOnlyList<string> AllRoles => new[] { Admin, Member, Guest };
+}
@@ -0,0 +1,94 @@
+using Indotalent.Data.Entities;
+using Indotalent.Infrastructure.Database;
+using Microsoft.EntityFrameworkCore;
+using System.Collections.Concurrent;
+
+namespace Indotalent.Infrastructure.AutoNumberGenerator;
+
+public class AutoNumberGeneratorService
+{
+    private readonly AppDbContext _context;
+    private static readonly ConcurrentDictionary<string, SemaphoreSlim> _locks = new();
+
+    public AutoNumberGeneratorService(AppDbContext context)
+    {
+        _context = context;
+    }
+
+    public async Task<string> GenerateNextNumberAsync(
+        string entityName,
+        string prefixTemplate,
+        string? suffixTemplate = null,
+        int paddingLength = 4,
+        bool useYear = true,
+        bool useMonth = false,
+        CancellationToken cancellationToken = default)
+    {
+        var now = DateTime.UtcNow;
+        int? year = useYear ? now.Year : null;
+        int? month = useMonth ? now.Month : null;
+
+        var lockKey = $"{entityName}_{year}_{month}";
+        var semaphore = _locks.GetOrAdd(lockKey, _ => new SemaphoreSlim(1, 1));
+
+        await semaphore.WaitAsync(cancellationToken);
+        try
+        {
+            var sequence = await _context.AutoNumberSequence
+                .FirstOrDefaultAsync(ns =>
+                    ns.EntityName == entityName &&
+                    ns.Year == year &&
+                    ns.Month == month,
+                    cancellationToken);
+
+            if (sequence == null)
+            {
+                sequence = new AutoNumberSequence
+                {
+                    EntityName = entityName,
+                    Year = year,
+                    Month = month,
+                    CurrentSequence = 0,
+                    PrefixTemplate = prefixTemplate,
+                    SuffixTemplate = suffixTemplate,
+                    PaddingLength = paddingLength
+                };
+                _context.AutoNumberSequence.Add(sequence);
+            }
+
+            sequence.CurrentSequence = (sequence.CurrentSequence ?? 0) + 1;
+
+            var formattedNumber = BuildFormattedNumber(sequence, now);
+
+            await _context.SaveChangesAsync(cancellationToken);
+
+            return formattedNumber;
+        }
+        finally
+        {
+            semaphore.Release();
+            if (semaphore.CurrentCount == 1) _locks.TryRemove(lockKey, out _);
+        }
+    }
+
+    private string BuildFormattedNumber(AutoNumberSequence sequence, DateTime now)
+    {
+        string ProcessTemplate(string? template)
+        {
+            if (string.IsNullOrEmpty(template)) return "";
+            return template
+                .Replace("{EntityName}", sequence.EntityName)
+                .Replace("{Year}", now.Year.ToString())
+                .Replace("{Year2}", now.ToString("yy"))
+                .Replace("{Month}", now.Month.ToString("D2"));
+        }
+
+        var prefix = ProcessTemplate(sequence.PrefixTemplate);
+        var suffix = ProcessTemplate(sequence.SuffixTemplate);
+
+        var padding = sequence.PaddingLength ?? 4;
+        var paddedSequence = (sequence.CurrentSequence ?? 1).ToString($"D{padding}");
+
+        return $"{prefix}{paddedSequence}{suffix}";
+    }
+}
@@ -0,0 +1,13 @@
+
+
+namespace Indotalent.Infrastructure.AutoNumberGenerator;
+
+public static class DI
+{
+    public static IServiceCollection AddAutoNumberGeneratorService(this IServiceCollection services)
+    {
+        services.AddScoped<AutoNumberGeneratorService>();
+
+        return services;
+    }
+}
@@ -0,0 +1,12 @@
+namespace Indotalent.Infrastructure.AutoNumberGenerator;
+
+public interface IAutoNumberGenerator
+{
+    string? EntityName { get; set; }
+    int? Year { get; set; }
+    int? Month { get; set; }
+    long? CurrentSequence { get; set; }
+    string? PrefixTemplate { get; set; }
+    string? SuffixTemplate { get; set; }
+    int? PaddingLength { get; set; }
+}
@@ -0,0 +1,10 @@
+using Microsoft.Extensions.Options;
+
+namespace Indotalent.Infrastructure.BackgroundJob;
+
+public class BackgroundJobService(IOptions<BackgroundJobSettingsModel> options)
+{
+    private readonly BackgroundJobSettingsModel _settings = options.Value;
+
+    public BackgroundJobSettingsModel GetConfiguration() => _settings;
+}
@@ -0,0 +1,10 @@
+using Indotalent.Infrastructure.BackgroundJob.Hangfire;
+using Indotalent.Infrastructure.BackgroundJob.Quartz;
+
+namespace Indotalent.Infrastructure.BackgroundJob;
+
+public class BackgroundJobSettingsModel
+{
+    public HangfireSettingsModel Hangfire { get; set; } = new();
+    public QuartzSettingsModel Quartz { get; set; } = new();
+}
@@ -0,0 +1,11 @@
+namespace Indotalent.Infrastructure.BackgroundJob;
+
+public static class DI
+{
+    public static IServiceCollection AddBackgroundJobService(this IServiceCollection services)
+    {
+        services.AddScoped<BackgroundJobService>();
+
+        return services;
+    }
+}
@@ -0,0 +1,8 @@
+namespace Indotalent.Infrastructure.BackgroundJob.Hangfire;
+
+public class HangfireSettingsModel
+{
+    public bool IsUsed { get; set; }
+    public string ConnectionString { get; set; } = string.Empty;
+    public string DashboardPath { get; set; } = "/hangfire";
+}
@@ -0,0 +1,7 @@
+namespace Indotalent.Infrastructure.BackgroundJob.Quartz;
+
+public class QuartzSettingsModel
+{
+    public bool IsUsed { get; set; }
+    public string TablePrefix { get; set; } = "QRTZ_";
+}
@@ -0,0 +1,43 @@
+using Indotalent.Infrastructure.Authentication;
+using Indotalent.Infrastructure.Authentication.Identity;
+using Indotalent.Infrastructure.AutoNumberGenerator;
+using Indotalent.Infrastructure.BackgroundJob;
+using Indotalent.Infrastructure.Database;
+using Indotalent.Infrastructure.Email;
+using Indotalent.Infrastructure.File;
+using Indotalent.Infrastructure.Logging;
+using Indotalent.Infrastructure.OData;
+
+namespace Indotalent.Infrastructure;
+
+public static class DI
+{
+    public static IServiceCollection AddInfrastructureDI(this IServiceCollection services, IConfiguration configuration)
+    {
+        services.Configure<DatabaseSettingsModel>(configuration.GetSection("DatabaseSettings"));
+        services.Configure<BackgroundJobSettingsModel>(configuration.GetSection("BackgroundJobSettings"));
+        services.Configure<EmailSettingsModel>(configuration.GetSection("EmailSettings"));
+        services.Configure<FileStorageSettingsModel>(configuration.GetSection("FileStorageSettings"));
+        services.Configure<LoggerSettingsModel>(configuration.GetSection("LoggerSettings"));
+        services.Configure<IdentitySettingsModel>(configuration.GetSection("IdentitySettings"));
+
+        services.AddLoggingService();
+
+        services.AddDatabaseService(configuration);
+
+        services.AddBackgroundJobService();
+
+        services.AddEmailService(configuration);
+
+        services.AddFileService();
+
+        services.AddAuthenticationService(configuration);
+
+        services.AddAutoNumberGeneratorService();
+
+        services.AddODataService();
+
+
+        return services;
+    }
+}
@@ -0,0 +1,193 @@
+using Indotalent.ConfigBackEnd.Extensions;
+using Indotalent.ConfigBackEnd.Interfaces;
+using Indotalent.Data.Abstracts;
+using Indotalent.Data.Entities;
+using Indotalent.Data.Interfaces;
+using Indotalent.Infrastructure.AutoNumberGenerator;
+using Indotalent.Shared.Consts;
+using Microsoft.AspNetCore.Identity.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore;
+
+namespace Indotalent.Infrastructure.Database;
+
+public class AppDbContext : IdentityDbContext<ApplicationUser>
+{
+    private readonly IServiceScopeFactory _scopeFactory;
+    private readonly ICurrentUserService _currentUserService;
+
+    public AppDbContext(
+        DbContextOptions<AppDbContext> options,
+        IServiceScopeFactory scopeFactory,
+        ICurrentUserService currentUserService) : base(options)
+    {
+        _scopeFactory = scopeFactory;
+        _currentUserService = currentUserService;
+    }
+
+    public DbSet<AutoNumberSequence> AutoNumberSequence { get; set; } = default!;
+    public DbSet<Currency> Currency { get; set; } = default!;
+    public DbSet<Company> Company { get; set; } = default!;
+    public DbSet<Tax> Tax { get; set; } = default!;
+    public DbSet<Branch> Branch { get; set; } = default!;
+    public DbSet<Department> Department { get; set; } = default!;
+    public DbSet<Designation> Designation { get; set; } = default!;
+    public DbSet<Employee> Employee { get; set; } = default!;
+    public DbSet<LeaveCategory> LeaveCategory { get; set; } = default!;
+    public DbSet<LeaveRequest> LeaveRequest { get; set; } = default!;
+    public DbSet<LeaveBalance> LeaveBalance { get; set; } = default!;
+    public DbSet<Evaluation> Evaluation { get; set; } = default!;
+    public DbSet<Appraisal> Appraisal { get; set; } = default!;
+    public DbSet<Promotion> Promotion { get; set; } = default!;
+    public DbSet<Transfer> Transfer { get; set; } = default!;
+    public DbSet<Income> Income { get; set; } = default!;
+    public DbSet<Deduction> Deduction { get; set; } = default!;
+    public DbSet<Grade> Grade { get; set; } = default!;
+    public DbSet<EmployeeIncome> EmployeeIncome { get; set; } = default!;
+    public DbSet<EmployeeDeduction> EmployeeDeduction { get; set; } = default!;
+    public DbSet<PayrollProcess> PayrollProcess { get; set; } = default!;
+    public DbSet<PayrollDetail> PayrollDetail { get; set; } = default!;
+    public DbSet<PayrollComponent> PayrollComponent { get; set; } = default!;
+
+    public override int SaveChanges()
+    {
+        ApplySoftDelete();
+        ApplyAudit(_currentUserService.UserId ?? string.Empty);
+        return base.SaveChanges();
+    }
+
+    public override async Task<int> SaveChangesAsync(CancellationToken cancellationToken = default)
+    {
+        ChangeTracker.DetectChanges();
+        ApplySoftDelete();
+        ApplyAudit(_currentUserService.UserId ?? string.Empty);
+        await ApplyAutoNumber(cancellationToken);
+        return await base.SaveChangesAsync(cancellationToken);
+    }
+
+    private void ApplySoftDelete()
+    {
+        var entries = ChangeTracker.Entries<IHasIsDeleted>()
+            .Where(e => e.State == EntityState.Deleted);
+
+        foreach (var entry in entries)
+        {
+            entry.State = EntityState.Modified;
+            entry.Entity.IsDeleted = true;
+        }
+    }
+
+    private void ApplyAudit(string userId)
+    {
+        var entries = ChangeTracker.Entries<IHasAudit>()
+            .Where(e => e.State == EntityState.Added || e.State == EntityState.Modified)
+            .ToList();
+
+        foreach (var entry in entries)
+        {
+            var now = DateTimeOffset.UtcNow;
+            var auditEntity = entry.Entity;
+
+            if (entry.State == EntityState.Added)
+            {
+                auditEntity.CreatedAt = now;
+                auditEntity.CreatedBy = userId;
+            }
+            else
+            {
+                entry.Property(nameof(IHasAudit.CreatedAt)).IsModified = false;
+                entry.Property(nameof(IHasAudit.CreatedBy)).IsModified = false;
+            }
+
+            auditEntity.UpdatedAt = now;
+            auditEntity.UpdatedBy = userId;
+        }
+    }
+
+    private async Task ApplyAutoNumber(CancellationToken ct)
+    {
+        var entries = ChangeTracker
+            .Entries<IHasAutoNumber>()
+            .Where(e => e.State == EntityState.Added && string.IsNullOrEmpty(e.Entity.AutoNumber))
+            .ToList();
+
+        if (!entries.Any()) return;
+
+        using var scope = _scopeFactory.CreateScope();
+        var generator = scope.ServiceProvider.GetRequiredService<AutoNumberGeneratorService>();
+
+        foreach (var entry in entries)
+        {
+            var entityName = entry.Entity.GetType().Name;
+            var shortName = entityName.ToShortNameConsonant(3);
+
+            entry.Entity.AutoNumber = await generator.GenerateNextNumberAsync(
+                entityName: entityName,
+                prefixTemplate: $"{shortName}/{{Year}}/",
+                paddingLength: 4,
+                cancellationToken: ct
+            );
+        }
+    }
+
+    protected override void OnModelCreating(ModelBuilder modelBuilder)
+    {
+        base.OnModelCreating(modelBuilder);
+
+        if (Database.ProviderName?.Contains("MySql") == true)
+        {
+            foreach (var entity in modelBuilder.Model.GetEntityTypes())
+            {
+                if (entity.GetTableName()!.StartsWith("AspNet"))
+                {
+                    foreach (var property in entity.GetProperties().Where(p => p.ClrType == typeof(string)))
+                    {
+                        property.SetMaxLength(191);
+                    }
+                }
+            }
+        }
+
+        foreach (var entityType in modelBuilder.Model.GetEntityTypes())
+        {
+            var type = entityType.ClrType;
+
+            if (typeof(BaseEntity).IsAssignableFrom(type))
+            {
+                modelBuilder.Entity(type)
+                    .Property("Id")
+                    .HasMaxLength(GlobalConsts.StringLengthId)
+                    .IsFixedLength();
+            }
+
+            if (typeof(IHasAudit).IsAssignableFrom(type))
+            {
+                modelBuilder.Entity(type)
+                    .Property(nameof(IHasAudit.CreatedBy))
+                    .HasMaxLength(GlobalConsts.StringLengthShort);
+
+                modelBuilder.Entity(type)
+                    .Property(nameof(IHasAudit.UpdatedBy))
+                    .HasMaxLength(GlobalConsts.StringLengthShort);
+            }
+
+            if (typeof(IHasIsDeleted).IsAssignableFrom(type))
+            {
+                modelBuilder.Entity(type).HasQueryFilter(GetNotDeletedOnlyFilter(type));
+            }
+
+        }
+
+        modelBuilder.ApplyConfigurationsFromAssembly(typeof(AppDbContext).Assembly);
+    }
+
+    private static System.Linq.Expressions.LambdaExpression GetNotDeletedOnlyFilter(Type type)
+    {
+        var parameter = System.Linq.Expressions.Expression.Parameter(type, "e");
+        var property = System.Linq.Expressions.Expression.Property(parameter, nameof(IHasIsDeleted.IsDeleted));
+        var falseConstant = System.Linq.Expressions.Expression.Constant(false);
+        var comparison = System.Linq.Expressions.Expression.Equal(property, falseConstant);
+        return System.Linq.Expressions.Expression.Lambda(comparison, parameter);
+    }
+}
+
+
@@ -0,0 +1,50 @@
+using Microsoft.EntityFrameworkCore;
+
+namespace Indotalent.Infrastructure.Database;
+
+public static class DI
+{
+    public static IServiceCollection AddDatabaseService(this IServiceCollection services, IConfiguration configuration)
+    {
+        var dbSettings = configuration.GetSection("DatabaseSettings").Get<DatabaseSettingsModel>();
+
+        if (dbSettings?.MsSQL?.IsUsed == true)
+        {
+            services.AddDbContext<AppDbContext>(options =>
+                options.UseSqlServer(
+                    dbSettings.MsSQL.ConnectionString,
+                    sqlOptions => {
+                        sqlOptions.CommandTimeout(dbSettings.MsSQL.TimeoutInSeconds); 
+                    }
+                )
+            );
+        }
+        else if (dbSettings?.PostgreSQL?.IsUsed == true)
+        {
+            services.AddDbContext<AppDbContext>(options =>
+                options.UseNpgsql(
+                    dbSettings.PostgreSQL.ConnectionString,
+                    npgsqlOptions => {
+                        npgsqlOptions.CommandTimeout(dbSettings.PostgreSQL.TimeoutInSeconds); 
+                    }
+                )
+            );
+        }
+        else if (dbSettings?.MySQL?.IsUsed == true)
+        {
+            services.AddDbContext<AppDbContext>(options =>
+                options.UseMySQL(
+                    dbSettings.MySQL.ConnectionString,
+                    mySqlOptions => {
+                        mySqlOptions.CommandTimeout(dbSettings.MySQL.TimeoutInSeconds); 
+                        mySqlOptions.MigrationsAssembly(typeof(AppDbContext).Assembly.FullName);
+                    }
+                )
+            );
+        }
+
+        services.AddScoped<DatabaseService>();
+
+        return services;
+    }
+}
@@ -0,0 +1,8 @@
+namespace Indotalent.Infrastructure.Database;
+
+public class DatabaseProviderModel
+{
+    public bool IsUsed { get; set; }
+    public string ConnectionString { get; set; } = string.Empty;
+    public int TimeoutInSeconds { get; set; }   
+}
@@ -0,0 +1,650 @@
+using Indotalent.Data.Entities;
+using Indotalent.Infrastructure.Authentication.Identity;
+using Indotalent.Infrastructure.Authorization.Identity;
+using Microsoft.AspNetCore.Identity;
+using Microsoft.EntityFrameworkCore;
+
+namespace Indotalent.Infrastructure.Database;
+
+public static class DatabaseSeeder
+{
+    public static async Task SeedAsync(IServiceProvider serviceProvider)
+    {
+        var roleManager = serviceProvider.GetRequiredService<RoleManager<IdentityRole>>();
+        var userManager = serviceProvider.GetRequiredService<UserManager<ApplicationUser>>();
+        var configuration = serviceProvider.GetRequiredService<IConfiguration>();
+        var context = serviceProvider.GetRequiredService<AppDbContext>();
+
+        await SeedIdentityAsync(roleManager, userManager, configuration);
+        await SeedCurrenciesAsync(context);
+        await SeedCompanyAsync(context);
+        await SeedTaxAsync(context);
+        await SeedBranchAsync(context);
+        await SeedDepartmentAsync(context);
+        await SeedDesignationAsync(context);
+        await SeedGradeAsync(context);
+        await SeedIncomeAsync(context);
+        await SeedDeductionAsync(context);
+        await SeedEmployeeAsync(context);
+        await SeedLeaveCategoryAsync(context);
+        await SeedLeaveBalanceAsync(context);
+        await SeedLeaveRequestAsync(context);
+        await SeedEvaluationAsync(context);
+        await SeedAppraisalAsync(context);
+        await SeedPromotionAsync(context);
+        await SeedTransferAsync(context);
+        await SeedPayrollAsync(context);
+    }
+
+    private static async Task SeedIdentityAsync(RoleManager<IdentityRole> roleManager, UserManager<ApplicationUser> userManager, IConfiguration configuration)
+    {
+        var adminSettings = configuration.GetSection("IdentitySettings:DefaultAdmin").Get<DefaultAdminSettings>();
+        if (adminSettings == null) return;
+
+        foreach (var roleName in ApplicationRoles.AllRoles)
+        {
+            if (!await roleManager.RoleExistsAsync(roleName))
+            {
+                await roleManager.CreateAsync(new IdentityRole(roleName));
+            }
+        }
+
+        var existingUser = await userManager.FindByEmailAsync(adminSettings.Email);
+        if (existingUser == null)
+        {
+            var defaultAdmin = DefaultUserConfig.GetAdminUser(adminSettings);
+            var createAdmin = await userManager.CreateAsync(defaultAdmin, adminSettings.Password);
+
+            if (createAdmin.Succeeded)
+            {
+                await userManager.AddToRolesAsync(defaultAdmin, ApplicationRoles.AllRoles);
+            }
+        }
+    }
+
+    private static async Task SeedCurrenciesAsync(AppDbContext context)
+    {
+        if (await context.Set<Currency>().AnyAsync()) return;
+
+        var currencies = new List<Currency>
+        {
+            new() { Name = "US Dollar", Code = "USD", Symbol = "$", Description = "United States official currency", CountryOwner = "United States" },
+            new() { Name = "Euro", Code = "EUR", Symbol = "€", Description = "Eurozone member states currency", CountryOwner = "European Union" },
+            new() { Name = "British Pound", Code = "GBP", Symbol = "£", Description = "Official currency of the UK", CountryOwner = "United Kingdom" },
+            new() { Name = "Indonesian Rupiah", Code = "IDR", Symbol = "Rp", Description = "Official currency of Indonesia", CountryOwner = "Indonesia" }
+        };
+
+        await context.Set<Currency>().AddRangeAsync(currencies);
+        await context.SaveChangesAsync();
+    }
+
+    private static async Task SeedCompanyAsync(AppDbContext context)
+    {
+        if (await context.Set<Company>().AnyAsync()) return;
+
+        var usdCurrency = await context.Set<Currency>().FirstOrDefaultAsync(x => x.Code == "USD");
+        if (usdCurrency == null) return;
+
+        var companies = new List<Company>
+        {
+            new()
+            {
+                Name = "Acme Global Solutions Inc.",
+                Description = "A leading provider of enterprise-grade cloud software solutions.",
+                IsDefault = true,
+                CurrencyId = usdCurrency.Id,
+                TaxIdentification = "EIN 12-3456789",
+                BusinessLicense = "LC-987654321",
+                StreetAddress = "One World Trade Center, Suite 85",
+                City = "New York",
+                StateProvince = "NY",
+                ZipCode = "10007",
+                Phone = "+1 212 555 0198",
+                Email = "hr@acmeglobal.com",
+                SocialMediaLinkedIn = "linkedin.com/company/acme-global",
+                CompanyLogo = "/images/logos/acme-logo.png",
+                OtherInformation1 = "Corporate Headquarters",
+                OtherInformation2 = "Technology & SaaS",
+                OtherInformation3 = "Fortune 500 Candidate"
+            }
+        };
+
+        await context.Set<Company>().AddRangeAsync(companies);
+        await context.SaveChangesAsync();
+    }
+
+    private static async Task SeedTaxAsync(AppDbContext context)
+    {
+        if (await context.Set<Tax>().AnyAsync()) return;
+
+        var taxes = new List<Tax>
+        {
+            new() { Code = "FED-INC", Name = "Federal Income Tax", Description = "US Federal Progressive Income Tax", PercentageValue = 22, Category = "Income Tax" },
+            new() { Code = "SS-TAX", Name = "Social Security", Description = "Social Security (OASDI)", PercentageValue = 6.2m, Category = "Statutory" },
+            new() { Code = "MED-TAX", Name = "Medicare", Description = "Medicare Hospital Insurance", PercentageValue = 1.45m, Category = "Statutory" },
+            new() { Code = "NY-STATE", Name = "NY State Tax", Description = "New York State Income Tax", PercentageValue = 5.8m, Category = "State Tax" },
+            new() { Code = "NY-CITY", Name = "NYC Local Tax", Description = "New York City Local Tax", PercentageValue = 3.5m, Category = "Local Tax" }
+        };
+
+        await context.Set<Tax>().AddRangeAsync(taxes);
+        await context.SaveChangesAsync();
+    }
+
+    private static async Task SeedBranchAsync(AppDbContext context)
+    {
+        if (await context.Set<Branch>().AnyAsync()) return;
+
+        var branches = new List<Branch>
+        {
+            new() { Name = "New York HQ", City = "New York", StreetAddress = "One World Trade Center", Phone = "+1 212 555 0101", Code = "US-NYC" },
+            new() { Name = "San Francisco Tech Center", City = "San Francisco", StreetAddress = "Market Street, Financial District", Phone = "+1 415 555 0202", Code = "US-SFO" },
+            new() { Name = "Chicago Operations", City = "Chicago", StreetAddress = "Willis Tower, 233 S Wacker Dr", Phone = "+1 312 555 0303", Code = "US-CHI" },
+            new() { Name = "Austin Innovation Hub", City = "Austin", StreetAddress = "Congress Avenue, Downtown", Phone = "+1 512 555 0404", Code = "US-AUS" },
+            new() { Name = "Seattle Cloud Office", City = "Seattle", StreetAddress = "Westlake Ave, South Lake Union", Phone = "+1 206 555 0505", Code = "US-SEA" }
+        };
+
+        await context.Set<Branch>().AddRangeAsync(branches);
+        await context.SaveChangesAsync();
+    }
+
+    private static async Task SeedDepartmentAsync(AppDbContext context)
+    {
+        if (await context.Set<Department>().AnyAsync()) return;
+
+        var departments = new List<Department>
+        {
+            new() { CostCenter = "US-IT", Name = "Engineering & IT", HeadOfDeptartment = "Michael Scott", Description = "Software engineering and cloud infrastructure." },
+            new() { CostCenter = "US-HR", Name = "People & Culture", HeadOfDeptartment = "Pam Beesly", Description = "Talent acquisition and employee experience." },
+            new() { CostCenter = "US-FIN", Name = "Finance", HeadOfDeptartment = "Angela Martin", Description = "Global financial planning and analysis." },
+            new() { CostCenter = "US-MKT", Name = "Marketing", HeadOfDeptartment = "Ryan Howard", Description = "Digital marketing and brand growth." },
+            new() { CostCenter = "US-SAL", Name = "Global Sales", HeadOfDeptartment = "Jim Halpert", Description = "Enterprise sales and business development." }
+        };
+
+        await context.Set<Department>().AddRangeAsync(departments);
+        await context.SaveChangesAsync();
+    }
+
+    private static async Task SeedDesignationAsync(AppDbContext context)
+    {
+        if (await context.Set<Designation>().AnyAsync()) return;
+
+        var designations = new List<Designation>
+        {
+            new() { Code = "C-LEVEL", Name = "Chief Executive Officer", Level = "Executive", Description = "Global strategy Lead." },
+            new() { Code = "DIR-01", Name = "Director of Engineering", Level = "Director", Description = "Engineering organization Lead." },
+            new() { Code = "MGR-01", Name = "Engineering Manager", Level = "Management", Description = "Team and project management." },
+            new() { Code = "ENG-01", Name = "Principal Software Engineer", Level = "Professional", Description = "Systems architecture." },
+            new() { Code = "ENG-02", Name = "Senior Software Engineer", Level = "Professional", Description = "Full-stack development." },
+            new() { Code = "ENG-03", Name = "Cloud Architect", Level = "Professional", Description = "Azure/AWS Infrastructure." }
+        };
+
+        await context.Set<Designation>().AddRangeAsync(designations);
+        await context.SaveChangesAsync();
+    }
+
+    private static async Task SeedIncomeAsync(AppDbContext context)
+    {
+        if (await context.Set<Income>().AnyAsync()) return;
+
+        var incomes = new List<Income>
+        {
+            new() { Code = "BASE", Name = "Base Salary", Type = "Fixed", IsTaxable = true, CalculationBase = "Contracted salary", Status = "Active", Description = "Monthly base compensation" },
+            new() { Code = "BONUS", Name = "Performance Bonus", Type = "Variable", IsTaxable = true, CalculationBase = "Quarterly KPI Result", Status = "Active", Description = "KPI based performance incentive" },
+            // Di US umum ada Stipend atau Reimbursement
+            new() { Code = "WFH", Name = "WFH Stipend", Type = "Fixed", IsTaxable = false, CalculationBase = "Remote work support", Status = "Active", Description = "Internet and utilities allowance" },
+            new() { Code = "CAR", Name = "Car Allowance", Type = "Fixed", IsTaxable = true, CalculationBase = "Executive car benefit", Status = "Active", Description = "Executive transportation support" }
+        };
+
+        await context.Set<Income>().AddRangeAsync(incomes);
+        await context.SaveChangesAsync();
+    }
+
+    private static async Task SeedDeductionAsync(AppDbContext context)
+    {
+        if (await context.Set<Deduction>().AnyAsync()) return;
+
+        var deductions = new List<Deduction>
+        {
+            new() { Code = "FIT", Name = "Federal Income Tax", Category = "Statutory", PreTax = false, CalculationMethod = "IRS Tax Tables", Status = "Active", Description = "Mandatory Federal Tax" },
+            new() { Code = "401K", Name = "401(k) Contribution", Category = "Retirement", PreTax = true, CalculationMethod = "% of Gross Salary", Status = "Active", Description = "Voluntary retirement savings" },
+            new() { Code = "HLTH", Name = "Health Insurance Premium", Category = "Insurance", PreTax = true, CalculationMethod = "Flat employee portion", Status = "Active", Description = "Medical/Dental/Vision premium" },
+            new() { Code = "LIFE", Name = "Group Life Insurance", Category = "Insurance", PreTax = false, CalculationMethod = "Fixed premium", Status = "Active", Description = "Optional life insurance coverage" }
+        };
+
+        await context.Set<Deduction>().AddRangeAsync(deductions);
+        await context.SaveChangesAsync();
+    }
+
+    private static async Task SeedGradeAsync(AppDbContext context)
+    {
+        if (await context.Set<Grade>().AnyAsync()) return;
+
+        var grades = new List<Grade>
+        {
+            new() { Code = "L-01", Name = "Executive Level", Description = "C-Suite and VPs", SalaryFrom = 180000, SalaryTo = 350000, IsOverTimeEligible = false, Status = "Active" },
+            new() { Code = "L-02", Name = "Director Level", Description = "Department Directors", SalaryFrom = 140000, SalaryTo = 200000, IsOverTimeEligible = false, Status = "Active" },
+            new() { Code = "L-03", Name = "Management Level", Description = "Engineering/Product Managers", SalaryFrom = 110000, SalaryTo = 160000, IsOverTimeEligible = false, Status = "Active" },
+            new() { Code = "L-04", Name = "Senior Professional", Description = "Senior IC Roles", SalaryFrom = 95000, SalaryTo = 145000, IsOverTimeEligible = true, Status = "Active" },
+            new() { Code = "L-05", Name = "Professional", Description = "Mid-Level IC Roles", SalaryFrom = 70000, SalaryTo = 100000, IsOverTimeEligible = true, Status = "Active" }
+        };
+
+        await context.Set<Grade>().AddRangeAsync(grades);
+        await context.SaveChangesAsync();
+    }
+
+    private static async Task SeedEmployeeAsync(AppDbContext context)
+    {
+        if (await context.Set<Employee>().AnyAsync()) return;
+
+        var hqBranch = await context.Set<Branch>().FirstOrDefaultAsync(x => x.Code == "US-NYC");
+        var itDept = await context.Set<Department>().FirstOrDefaultAsync(x => x.CostCenter == "US-IT");
+        var managerDesig = await context.Set<Designation>().FirstOrDefaultAsync(x => x.Code == "MGR-01");
+        var allGrades = await context.Set<Grade>().ToListAsync();
+
+        var wfhStipend = await context.Set<Income>().FirstOrDefaultAsync(x => x.Code == "WFH");
+        var healthIns = await context.Set<Deduction>().FirstOrDefaultAsync(x => x.Code == "HLTH");
+        var retirement401k = await context.Set<Deduction>().FirstOrDefaultAsync(x => x.Code == "401K");
+
+        if (hqBranch == null || itDept == null || managerDesig == null || !allGrades.Any()) return;
+
+        var random = new Random();
+        var employees = new List<Employee>();
+        var empIncomes = new List<EmployeeIncome>();
+        var empDeductions = new List<EmployeeDeduction>();
+
+        // Nama-nama Amerika
+        string[] firstNames = { "James", "Robert", "John", "Michael", "David", "William", "Richard", "Joseph", "Thomas", "Christopher", "Charles", "Daniel", "Matthew", "Anthony", "Mark", "Donald", "Steven", "Paul", "Andrew", "Joshua", "Emily", "Mary", "Patricia", "Jennifer", "Linda", "Elizabeth", "Barbara", "Susan", "Jessica", "Sarah" };
+        string[] lastNames = { "Smith", "Johnson", "Williams", "Brown", "Jones", "Garcia", "Miller", "Davis", "Rodriguez", "Martinez", "Hernandez", "Lopez", "Gonzales", "Wilson", "Anderson", "Thomas", "Taylor", "Moore", "Jackson", "Martin", "Lee", "Perez", "Thompson", "White", "Harris", "Sanchez", "Clark", "Ramirez", "Lewis", "Robinson" };
+        string[] banks = { "JP Morgan Chase", "Bank of America", "Wells Fargo", "Citibank", "Capital One" };
+
+        for (int i = 1; i <= 30; i++)
+        {
+            var fName = firstNames[random.Next(firstNames.Length)];
+            var lName = lastNames[random.Next(lastNames.Length)];
+            var selectedGrade = allGrades[random.Next(allGrades.Count)];
+
+            // Perhitungan Gaji Tahunan (Annual) dibagi 12
+            var salaryRange = selectedGrade.SalaryTo - selectedGrade.SalaryFrom;
+            var baseAnnualSalary = selectedGrade.SalaryFrom + (decimal)(random.NextDouble() * (double)salaryRange);
+            var baseSalary = Math.Round(baseAnnualSalary / 12, 0);
+
+            var emp = new Employee
+            {
+                Code = $"ACME-{2000 + i}",
+                FirstName = fName,
+                LastName = lName,
+                JobDescription = "Specialized staff contributing to regional US operations.",
+                GradeId = selectedGrade.Id,
+                BasicSalary = baseSalary,
+                SalaryBankName = banks[random.Next(banks.Length)],
+                SalaryBankAccountName = $"{fName} {lName}",
+                SalaryBankAccountNumber = $"{random.Next(100, 999)}-{random.Next(100000, 999999)}",
+                PlaceOfBirth = "USA",
+                DateOfBirth = new DateTime(random.Next(1975, 2000), random.Next(1, 12), random.Next(1, 28)),
+                Gender = i % 2 == 0 ? "Female" : "Male",
+                MaritalStatus = "Single",
+                Religion = "Christian",
+                IdentityNumber = $"SSN-{random.Next(100, 999)}-{random.Next(10, 99)}-{random.Next(1000, 9999)}",
+                JoinedDate = new DateTime(2022, 1, 1).AddMonths(-random.Next(1, 48)),
+                EmployeeStatus = "Active",
+                EmploymentType = "Full-Time",
+                Email = $"{fName.ToLower()}.{lName.ToLower()}@acmeglobal.com",
+                BranchId = hqBranch.Id,
+                DepartmentId = itDept.Id,
+                DesignationId = managerDesig.Id
+            };
+
+            employees.Add(emp);
+
+            if (wfhStipend != null)
+            {
+                empIncomes.Add(new EmployeeIncome
+                {
+                    Employee = emp,
+                    IncomeId = wfhStipend.Id,
+                    Amount = 150, // USD 150 per month
+                    Description = "Remote work utilities support",
+                    IsActive = true
+                });
+            }
+
+            if (healthIns != null)
+            {
+                empDeductions.Add(new EmployeeDeduction
+                {
+                    Employee = emp,
+                    DeductionId = healthIns.Id,
+                    Amount = 250, // USD 250 flat per month for insurance
+                    Description = "Employee medical premium",
+                    IsActive = true
+                });
+            }
+
+            if (retirement401k != null)
+            {
+                empDeductions.Add(new EmployeeDeduction
+                {
+                    Employee = emp,
+                    DeductionId = retirement401k.Id,
+                    Amount = Math.Round(baseSalary * 0.05m, 0), // 5% for 401k
+                    Description = "401(k) retirement plan contribution",
+                    IsActive = true
+                });
+            }
+        }
+
+        await context.Set<Employee>().AddRangeAsync(employees);
+        await context.Set<EmployeeIncome>().AddRangeAsync(empIncomes);
+        await context.Set<EmployeeDeduction>().AddRangeAsync(empDeductions);
+        await context.SaveChangesAsync();
+    }
+
+    private static async Task SeedLeaveCategoryAsync(AppDbContext context)
+    {
+        if (await context.Set<LeaveCategory>().AnyAsync()) return;
+
+        var categories = new List<LeaveCategory>
+        {
+            new() { Code = "US-PTO", Name = "Paid Time Off (PTO)", Quota = 20, IsPaidLeave = true, Description = "Vacation and personal days", Status = "Active" },
+            new() { Code = "US-SICK", Name = "Sick Leave", Quota = 10, IsPaidLeave = true, Description = "Medical leave with notification", Status = "Active" },
+            new() { Code = "US-BEREAVE", Name = "Bereavement Leave", Quota = 5, IsPaidLeave = true, Description = "Loss of immediate family members", Status = "Active" },
+            new() { Code = "US-JURY", Name = "Jury Duty", Quota = 0, IsPaidLeave = true, Description = "Court-mandated duty", Status = "Active" },
+            new() { Code = "US-FMLA", Name = "Family Medical Leave (FMLA)", Quota = 60, IsPaidLeave = false, Description = "Long-term medical or family care", Status = "Active" }
+        };
+
+        await context.Set<LeaveCategory>().AddRangeAsync(categories);
+        await context.SaveChangesAsync();
+    }
+
+    private static async Task SeedLeaveBalanceAsync(AppDbContext context)
+    {
+        if (await context.Set<LeaveBalance>().AnyAsync()) return;
+
+        var employees = await context.Set<Employee>().Take(15).ToListAsync();
+        var ptoLeave = await context.Set<LeaveCategory>().FirstOrDefaultAsync(x => x.Code == "US-PTO");
+
+        if (!employees.Any() || ptoLeave == null) return;
+
+        var balances = new List<LeaveBalance>();
+        foreach (var emp in employees)
+        {
+            balances.Add(new LeaveBalance
+            {
+                EmployeeId = emp.Id,
+                LeaveCategoryId = ptoLeave.Id,
+                Entitlement = ptoLeave.Quota,
+                Used = 5,
+                Pending = 0,
+                Remaining = ptoLeave.Quota - 5,
+                Year = 2026,
+                ValidFrom = new DateTime(2026, 1, 1),
+                ValidTo = new DateTime(2026, 12, 31)
+            });
+        }
+
+        await context.Set<LeaveBalance>().AddRangeAsync(balances);
+        await context.SaveChangesAsync();
+    }
+
+    private static async Task SeedLeaveRequestAsync(AppDbContext context)
+    {
+        if (await context.Set<LeaveRequest>().AnyAsync()) return;
+
+        var categories = await context.Set<LeaveCategory>().ToListAsync();
+        var employees = await context.Set<Employee>().ToListAsync();
+
+        var requests = new List<LeaveRequest>();
+
+        var mockData = new[] {
+            new { Name = "James", Cat = "US-PTO", Start = DateTime.Now.AddDays(10), End = DateTime.Now.AddDays(14), Days = 5.0, Status = "Approved", Reason = "Grand Canyon trip" },
+            new { Name = "Emily", Cat = "US-SICK", Start = DateTime.Now.AddDays(-3), End = DateTime.Now.AddDays(-1), Days = 3.0, Status = "Approved", Reason = "Medical checkup" },
+            new { Name = "Robert", Cat = "US-PTO", Start = DateTime.Now.AddDays(20), End = DateTime.Now.AddDays(22), Days = 3.0, Status = "Pending", Reason = "Family reunion in Texas" }
+        };
+
+        foreach (var item in mockData)
+        {
+            var emp = employees.FirstOrDefault(x => x.FirstName.Contains(item.Name));
+            var cat = categories.FirstOrDefault(x => x.Code == item.Cat);
+
+            if (emp != null && cat != null)
+            {
+                requests.Add(new LeaveRequest
+                {
+                    EmployeeId = emp.Id,
+                    LeaveCategoryId = cat.Id,
+                    StartDate = item.Start,
+                    EndDate = item.End,
+                    Days = item.Days,
+                    Status = item.Status,
+                    Reason = item.Reason
+                });
+            }
+        }
+
+        await context.Set<LeaveRequest>().AddRangeAsync(requests);
+        await context.SaveChangesAsync();
+    }
+
+    private static async Task SeedEvaluationAsync(AppDbContext context)
+    {
+        if (await context.Set<Evaluation>().AnyAsync()) return;
+
+        var allEmployees = await context.Set<Employee>().ToListAsync();
+        if (allEmployees.Count < 5) return;
+
+        var evaluations = new List<Evaluation>();
+        var random = new Random();
+
+        for (int i = 0; i < Math.Min(20, allEmployees.Count); i++)
+        {
+            var targetEmployee = allEmployees[i];
+            var potentialEvaluators = allEmployees.Where(x => x.Id != targetEmployee.Id).ToList();
+            var evaluator = potentialEvaluators[random.Next(potentialEvaluators.Count)];
+
+            evaluations.Add(new Evaluation
+            {
+                EmployeeId = targetEmployee.Id,
+                Period = "Annual 2025 Review",
+                FinalScore = (85 + random.Next(1, 15)).ToString("F1"),
+                Rating = (random.Next(3, 5)).ToString(),
+                EvaluatorId = evaluator.Id,
+                EvaluationDate = DateTime.Now.AddDays(-random.Next(1, 60)),
+                EvaluationNote = "Employee demonstrates exceptional leadership and technical proficiency.",
+                Status = "Completed"
+            });
+        }
+
+        await context.Set<Evaluation>().AddRangeAsync(evaluations);
+        await context.SaveChangesAsync();
+    }
+
+    private static async Task SeedAppraisalAsync(AppDbContext context)
+    {
+        if (await context.Set<Appraisal>().AnyAsync()) return;
+        var employees = await context.Set<Employee>().Skip(5).Take(15).ToListAsync();
+        var appraisals = new List<Appraisal>();
+        var ratings = new[] { "Exceeds Expectations", "Consistently High", "Outstanding" };
+
+        for (int i = 0; i < 15; i++)
+        {
+            decimal salary = employees[i].BasicSalary;
+            decimal incPercent = 3 + (i % 5);
+            appraisals.Add(new Appraisal
+            {
+                EmployeeId = employees[i].Id,
+                LastRating = ratings[i % ratings.Length],
+                CurrentSalary = salary,
+                IncrementPercentage = incPercent,
+                NewSalary = salary + (salary * incPercent / 100),
+                AppraisalType = "Annual Merit Increase",
+                EffectiveDate = DateTime.Now.AddMonths(1),
+                AppraisalNote = "Standard US merit increase based on FY2025 performance.",
+                Status = "Approved"
+            });
+        }
+        await context.Set<Appraisal>().AddRangeAsync(appraisals);
+        await context.SaveChangesAsync();
+    }
+
+    private static async Task SeedPromotionAsync(AppDbContext context)
+    {
+        if (await context.Set<Promotion>().AnyAsync()) return;
+        var employees = await context.Set<Employee>().Skip(2).Take(10).ToListAsync();
+        var promotions = new List<Promotion>();
+        var grades = new[] { "L-05", "L-04", "L-03", "L-02" };
+
+        for (int i = 0; i < 10; i++)
+        {
+            promotions.Add(new Promotion
+            {
+                EmployeeId = employees[i].Id,
+                FromGrade = grades[0],
+                ToGrade = grades[1],
+                EffectiveDate = DateTime.Now.AddDays(i + 10),
+                PromotionNote = "Promoted to Senior level for architectural excellence.",
+                Status = "Confirmed"
+            });
+        }
+        await context.Set<Promotion>().AddRangeAsync(promotions);
+        await context.SaveChangesAsync();
+    }
+
+    private static async Task SeedTransferAsync(AppDbContext context)
+    {
+        if (await context.Set<Transfer>().AnyAsync()) return;
+        var employees = await context.Set<Employee>().Take(10).ToListAsync();
+        var branches = await context.Set<Branch>().ToListAsync();
+        var depts = await context.Set<Department>().ToListAsync();
+        var desigs = await context.Set<Designation>().ToListAsync();
+        var transfers = new List<Transfer>();
+
+        for (int i = 0; i < 10; i++)
+        {
+            transfers.Add(new Transfer
+            {
+                EmployeeId = employees[i].Id,
+                FromBranchId = branches[0].Id,
+                ToBranchId = branches[1].Id,
+                FromDepartmentId = depts[0].Id,
+                ToDepartmentId = depts[0].Id,
+                FromDesignationId = desigs[4].Id,
+                ToDesignationId = desigs[3].Id,
+                TransferDate = DateTime.Now.AddDays(i + 5),
+                TransferNote = "Relocation to SFO for Cloud Project acceleration.",
+                Status = "Active"
+            });
+        }
+        await context.Set<Transfer>().AddRangeAsync(transfers);
+        await context.SaveChangesAsync();
+    }
+
+    private static async Task SeedPayrollAsync(AppDbContext context)
+    {
+        if (await context.PayrollProcess.AnyAsync()) return;
+
+        var employees = await context.Employee
+            .Include(x => x.EmployeeIncome)
+            .Include(x => x.EmployeeDeduction)
+            .ToListAsync();
+
+        if (!employees.Any()) return;
+
+        var payrollProcesses = new List<PayrollProcess>();
+        var payrollDetails = new List<PayrollDetail>();
+        var payrollComponents = new List<PayrollComponent>();
+
+        for (int m = 2; m >= 0; m--)
+        {
+            var date = DateTime.Now.AddMonths(-m);
+            var periodName = date.ToString("MMMM yyyy");
+            var fromDate = new DateTime(date.Year, date.Month, 1);
+            var toDate = fromDate.AddMonths(1).AddDays(-1);
+
+            var process = new PayrollProcess
+            {
+                Id = Guid.NewGuid().ToString(),
+                AutoNumber = $"US-PAY-{date:yyyyMM}-{3 - m:D3}",
+                PeriodName = periodName,
+                FromDate = fromDate,
+                ToDate = toDate,
+                Status = "Paid",
+                ProcessedBy = "US Payroll Admin",
+                ProcessedAt = DateTime.Now.AddMonths(-m),
+                Description = $"Global US Payroll processing for {periodName}"
+            };
+
+            decimal grandBasic = 0, grandIncome = 0, grandDeduction = 0;
+
+            foreach (var emp in employees)
+            {
+                var totalInc = emp.EmployeeIncome?.Sum(x => x.Amount) ?? 0;
+                var totalDed = emp.EmployeeDeduction?.Sum(x => x.Amount) ?? 0;
+                var thp = emp.BasicSalary + totalInc - totalDed;
+
+                var detail = new PayrollDetail
+                {
+                    Id = Guid.NewGuid().ToString(),
+                    PayrollProcessId = process.Id,
+                    EmployeeId = emp.Id,
+                    EmployeeCode = emp.Code,
+                    EmployeeName = $"{emp.FirstName} {emp.LastName}",
+                    BasicSalary = emp.BasicSalary,
+                    TotalIncome = totalInc,
+                    TotalDeduction = totalDed,
+                    TakeHomePay = thp
+                };
+
+                if (emp.EmployeeIncome != null)
+                {
+                    foreach (var inc in emp.EmployeeIncome)
+                    {
+                        payrollComponents.Add(new PayrollComponent
+                        {
+                            Id = Guid.NewGuid().ToString(),
+                            PayrollDetailId = detail.Id,
+                            ComponentName = inc.Income?.Name,
+                            ComponentType = "Income",
+                            Amount = inc.Amount,
+                            Description = inc.Description
+                        });
+                    }
+                }
+
+                if (emp.EmployeeDeduction != null)
+                {
+                    foreach (var ded in emp.EmployeeDeduction)
+                    {
+                        payrollComponents.Add(new PayrollComponent
+                        {
+                            Id = Guid.NewGuid().ToString(),
+                            PayrollDetailId = detail.Id,
+                            ComponentName = ded.Deduction?.Name,
+                            ComponentType = "Deduction",
+                            Amount = ded.Amount,
+                            Description = ded.Description
+                        });
+                    }
+                }
+
+                grandBasic += detail.BasicSalary;
+                grandIncome += totalInc;
+                grandDeduction += totalDed;
+                payrollDetails.Add(detail);
+            }
+
+            process.TotalEmployees = employees.Count;
+            process.TotalBasicSalary = grandBasic;
+            process.TotalIncome = grandIncome;
+            process.TotalDeduction = grandDeduction;
+            process.TotalGross = grandBasic + grandIncome;
+            process.TotalTakeHomePay = process.TotalGross - grandDeduction;
+
+            payrollProcesses.Add(process);
+        }
+
+        await context.PayrollProcess.AddRangeAsync(payrollProcesses);
+        await context.PayrollDetail.AddRangeAsync(payrollDetails);
+        await context.PayrollComponent.AddRangeAsync(payrollComponents);
+        await context.SaveChangesAsync();
+    }
+}
@@ -0,0 +1,18 @@
+using Microsoft.Extensions.Options;
+
+namespace Indotalent.Infrastructure.Database;
+
+public class DatabaseService(IOptions<DatabaseSettingsModel> options)
+{
+    private readonly DatabaseSettingsModel _settings = options.Value;
+
+    public DatabaseSettingsModel GetConfiguration() => _settings;
+
+    public DatabaseProviderModel GetActiveProvider()
+    {
+        if (_settings.MsSQL.IsUsed) return _settings.MsSQL;
+        if (_settings.MySQL.IsUsed) return _settings.MySQL;
+        if (_settings.PostgreSQL.IsUsed) return _settings.PostgreSQL;
+        return new DatabaseProviderModel();
+    }
+}
@@ -0,0 +1,8 @@
+namespace Indotalent.Infrastructure.Database;
+
+public class DatabaseSettingsModel
+{
+    public DatabaseProviderModel MsSQL { get; set; } = new();
+    public DatabaseProviderModel MySQL { get; set; } = new();
+    public DatabaseProviderModel PostgreSQL { get; set; } = new();
+}
@@ -0,0 +1,68 @@
+using Indotalent.Data.Entities;
+using Indotalent.Shared.Consts;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+
+namespace Indotalent.Infrastructure.Database.MsSQL.Configuration;
+
+public class ApplicationUserConfiguration : IEntityTypeConfiguration<ApplicationUser>
+{
+    public void Configure(EntityTypeBuilder<ApplicationUser> builder)
+    {
+        builder.Property(e => e.FullName).HasMaxLength(GlobalConsts.StringLengthShort);
+        builder.Property(e => e.SsoIdFirebase).HasMaxLength(GlobalConsts.StringLengthMedium);
+        builder.Property(e => e.SsoIdKeycloak).HasMaxLength(GlobalConsts.StringLengthMedium);
+        builder.Property(e => e.SsoIdAzure).HasMaxLength(GlobalConsts.StringLengthMedium);
+        builder.Property(e => e.SsoIdAws).HasMaxLength(GlobalConsts.StringLengthMedium);
+        builder.Property(e => e.SsoIdOther1).HasMaxLength(GlobalConsts.StringLengthMedium);
+        builder.Property(e => e.SsoIdOther2).HasMaxLength(GlobalConsts.StringLengthMedium);
+        builder.Property(e => e.SsoIdOther3).HasMaxLength(GlobalConsts.StringLengthMedium);
+        builder.Property(e => e.AvatarFile).HasMaxLength(GlobalConsts.StringLengthMedium);
+        builder.Property(e => e.RefreshToken).HasMaxLength(GlobalConsts.StringLengthMedium);
+
+
+        builder.Property(e => e.FirstName).HasMaxLength(GlobalConsts.StringLengthMedium);
+        builder.Property(e => e.LastName).HasMaxLength(GlobalConsts.StringLengthMedium);
+        builder.Property(e => e.ShortBio).HasMaxLength(GlobalConsts.StringLengthMedium);
+        builder.Property(e => e.JobTitle).HasMaxLength(GlobalConsts.StringLengthMedium);
+
+        builder.Property(e => e.StreetAddress)
+            .HasMaxLength(GlobalConsts.StringLengthMedium);
+
+        builder.Property(e => e.City)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.StateProvince)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.ZipCode)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.Country)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.SocialMediaLinkedIn)
+            .HasMaxLength(GlobalConsts.StringLengthMedium);
+
+        builder.Property(e => e.SocialMediaX)
+            .HasMaxLength(GlobalConsts.StringLengthMedium);
+
+        builder.Property(e => e.SocialMediaFacebook)
+            .HasMaxLength(GlobalConsts.StringLengthMedium);
+
+        builder.Property(e => e.SocialMediaInstagram)
+            .HasMaxLength(GlobalConsts.StringLengthMedium);
+
+        builder.Property(e => e.SocialMediaTikTok)
+            .HasMaxLength(GlobalConsts.StringLengthMedium);
+
+        builder.Property(e => e.OtherInformation1)
+            .HasMaxLength(GlobalConsts.StringLengthMedium);
+
+        builder.Property(e => e.OtherInformation2)
+            .HasMaxLength(GlobalConsts.StringLengthMedium);
+
+        builder.Property(e => e.OtherInformation3)
+            .HasMaxLength(GlobalConsts.StringLengthMedium);
+    }
+}
@@ -0,0 +1,31 @@
+using Indotalent.Data.Entities;
+using Indotalent.Shared.Consts;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+
+namespace Indotalent.Infrastructure.Database.MsSQL.Configuration;
+
+public class AppraisalConfiguration : IEntityTypeConfiguration<Appraisal>
+{
+    public void Configure(EntityTypeBuilder<Appraisal> builder)
+    {
+        builder.Property(a => a.AutoNumber).HasMaxLength(GlobalConsts.StringLengthShort);
+        builder.Property(a => a.EmployeeId).HasMaxLength(GlobalConsts.StringLengthId);
+        builder.Property(a => a.LastRating).HasMaxLength(GlobalConsts.StringLengthShort);
+        builder.Property(a => a.AppraisalType).HasMaxLength(GlobalConsts.StringLengthShort);
+        builder.Property(a => a.AppraisalNote).HasMaxLength(GlobalConsts.StringLengthMedium);
+        builder.Property(a => a.Status).HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(a => a.CurrentSalary).HasColumnType("decimal(18,2)");
+        builder.Property(a => a.IncrementPercentage).HasColumnType("decimal(18,2)");
+        builder.Property(a => a.NewSalary).HasColumnType("decimal(18,2)");
+
+        builder.HasIndex(a => a.AutoNumber).IsUnique();
+        builder.HasIndex(a => a.EmployeeId);
+
+        builder.HasOne(a => a.Employee)
+            .WithMany()
+            .HasForeignKey(a => a.EmployeeId)
+            .OnDelete(DeleteBehavior.NoAction);
+    }
+}
@@ -0,0 +1,25 @@
+using Indotalent.Data.Entities;
+using Indotalent.Shared.Consts;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+
+namespace Indotalent.Infrastructure.Database.MsSQL.Configuration;
+
+public class AutoNumberSequenceConfiguration : IEntityTypeConfiguration<AutoNumberSequence>
+{
+    public void Configure(EntityTypeBuilder<AutoNumberSequence> builder)
+    {
+
+        builder.Property(e => e.EntityName)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.PrefixTemplate)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.SuffixTemplate)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.HasIndex(e => new { e.EntityName, e.Year, e.Month })
+            .IsUnique();
+    }
+}
@@ -0,0 +1,56 @@
+using Indotalent.Data.Entities;
+using Indotalent.Shared.Consts;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+
+namespace Indotalent.Infrastructure.Database.MsSQL.Configuration;
+
+public class BranchConfiguration : IEntityTypeConfiguration<Branch>
+{
+    public void Configure(EntityTypeBuilder<Branch> builder)
+    {
+        builder.Property(e => e.AutoNumber)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.Code)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.Name)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.Description)
+            .HasMaxLength(GlobalConsts.StringLengthMedium);
+
+        builder.Property(e => e.StreetAddress)
+            .HasMaxLength(GlobalConsts.StringLengthMedium);
+
+        builder.Property(e => e.City)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.StateProvince)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.ZipCode)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.Phone)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.Email)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.OtherInformation1)
+            .HasMaxLength(GlobalConsts.StringLengthMedium);
+
+        builder.Property(e => e.OtherInformation2)
+            .HasMaxLength(GlobalConsts.StringLengthMedium);
+
+        builder.Property(e => e.OtherInformation3)
+            .HasMaxLength(GlobalConsts.StringLengthMedium);
+
+        builder.HasIndex(e => e.AutoNumber).IsUnique();
+        builder.HasIndex(e => e.Code).IsUnique();
+        builder.HasIndex(e => e.Name);
+        builder.HasIndex(e => e.City);
+    }
+}
@@ -0,0 +1,87 @@
+using Indotalent.Data.Entities;
+using Indotalent.Shared.Consts;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+
+namespace Indotalent.Infrastructure.Database.MsSQL.Configuration;
+
+public class CompanyConfiguration : IEntityTypeConfiguration<Company>
+{
+    public void Configure(EntityTypeBuilder<Company> builder)
+    {
+
+        builder.Property(e => e.AutoNumber)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.Name)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.Description)
+            .HasMaxLength(GlobalConsts.StringLengthMedium);
+
+        builder.Property(e => e.CurrencyId)
+            .HasMaxLength(GlobalConsts.StringLengthId);
+
+        builder.HasOne(e => e.Currency)
+            .WithMany()
+            .HasForeignKey(e => e.CurrencyId)
+            .OnDelete(DeleteBehavior.NoAction);
+
+        builder.Property(e => e.TaxIdentification)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.BusinessLicense)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.CompanyLogo)
+            .HasMaxLength(GlobalConsts.StringLengthMedium);
+
+        builder.Property(e => e.StreetAddress)
+            .HasMaxLength(GlobalConsts.StringLengthMedium);
+
+        builder.Property(e => e.City)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.StateProvince)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.ZipCode)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.Phone)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.Email)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.SocialMediaLinkedIn)
+            .HasMaxLength(GlobalConsts.StringLengthMedium);
+
+        builder.Property(e => e.SocialMediaX)
+            .HasMaxLength(GlobalConsts.StringLengthMedium);
+
+        builder.Property(e => e.SocialMediaFacebook)
+            .HasMaxLength(GlobalConsts.StringLengthMedium);
+
+        builder.Property(e => e.SocialMediaInstagram)
+            .HasMaxLength(GlobalConsts.StringLengthMedium);
+
+        builder.Property(e => e.SocialMediaTikTok)
+            .HasMaxLength(GlobalConsts.StringLengthMedium);
+
+        builder.Property(e => e.OtherInformation1)
+            .HasMaxLength(GlobalConsts.StringLengthMedium);
+
+        builder.Property(e => e.OtherInformation2)
+            .HasMaxLength(GlobalConsts.StringLengthMedium);
+
+        builder.Property(e => e.OtherInformation3)
+            .HasMaxLength(GlobalConsts.StringLengthMedium);
+
+
+        builder.HasIndex(e => e.AutoNumber).IsUnique();
+        builder.HasIndex(e => e.Name);
+        builder.HasIndex(e => e.Email);
+        builder.HasIndex(e => e.CurrencyId);
+    }
+}
@@ -0,0 +1,36 @@
+using Indotalent.Data.Entities;
+using Indotalent.Shared.Consts;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+
+namespace Indotalent.Infrastructure.Database.MsSQL.Configuration;
+
+public class CurrencyConfiguration : IEntityTypeConfiguration<Currency>
+{
+    public void Configure(EntityTypeBuilder<Currency> builder)
+    {
+
+        builder.Property(e => e.AutoNumber)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.Code)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.Name)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.Symbol)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.CountryOwner)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.Description)
+            .HasMaxLength(GlobalConsts.StringLengthMedium);
+
+
+        builder.HasIndex(e => e.AutoNumber).IsUnique();
+        builder.HasIndex(e => e.Code).IsUnique();
+        builder.HasIndex(e => e.Name);
+    }
+}
@@ -0,0 +1,37 @@
+using Indotalent.Data.Entities;
+using Indotalent.Shared.Consts;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+
+namespace Indotalent.Infrastructure.Database.MsSQL.Configuration;
+
+public class DeductionConfiguration : IEntityTypeConfiguration<Deduction>
+{
+    public void Configure(EntityTypeBuilder<Deduction> builder)
+    {
+        builder.Property(e => e.AutoNumber)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.Code)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.Name)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.Category)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.CalculationMethod)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.Status)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.Description)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.HasIndex(e => e.AutoNumber).IsUnique();
+        builder.HasIndex(e => e.Code).IsUnique();
+        builder.HasIndex(e => e.Name);
+    }
+}
@@ -0,0 +1,40 @@
+using Indotalent.Data.Entities;
+using Indotalent.Shared.Consts;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+
+namespace Indotalent.Infrastructure.Database.MsSQL.Configuration;
+
+public class DepartmentConfiguration : IEntityTypeConfiguration<Department>
+{
+    public void Configure(EntityTypeBuilder<Department> builder)
+    {
+        builder.Property(e => e.AutoNumber)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.CostCenter)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.Name)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.Description)
+            .HasMaxLength(GlobalConsts.StringLengthMedium);
+
+        builder.Property(e => e.HeadOfDeptartment)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.OtherInformation1)
+            .HasMaxLength(GlobalConsts.StringLengthMedium);
+
+        builder.Property(e => e.OtherInformation2)
+            .HasMaxLength(GlobalConsts.StringLengthMedium);
+
+        builder.Property(e => e.OtherInformation3)
+            .HasMaxLength(GlobalConsts.StringLengthMedium);
+
+        builder.HasIndex(e => e.AutoNumber).IsUnique();
+        builder.HasIndex(e => e.CostCenter).IsUnique();
+        builder.HasIndex(e => e.Name);
+    }
+}
@@ -0,0 +1,40 @@
+using Indotalent.Data.Entities;
+using Indotalent.Shared.Consts;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+
+namespace Indotalent.Infrastructure.Database.MsSQL.Configuration;
+
+public class DesignationConfiguration : IEntityTypeConfiguration<Designation>
+{
+    public void Configure(EntityTypeBuilder<Designation> builder)
+    {
+        builder.Property(e => e.AutoNumber)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.Code)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.Name)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.Description)
+            .HasMaxLength(GlobalConsts.StringLengthMedium);
+
+        builder.Property(e => e.Level)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.OtherInformation1)
+            .HasMaxLength(GlobalConsts.StringLengthMedium);
+
+        builder.Property(e => e.OtherInformation2)
+            .HasMaxLength(GlobalConsts.StringLengthMedium);
+
+        builder.Property(e => e.OtherInformation3)
+            .HasMaxLength(GlobalConsts.StringLengthMedium);
+
+        builder.HasIndex(e => e.AutoNumber).IsUnique();
+        builder.HasIndex(e => e.Code).IsUnique();
+        builder.HasIndex(e => e.Name);
+    }
+}
@@ -0,0 +1,167 @@
+using Indotalent.Data.Entities;
+using Indotalent.Shared.Consts;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+
+namespace Indotalent.Infrastructure.Database.MsSQL.Configuration;
+
+public class EmployeeConfiguration : IEntityTypeConfiguration<Employee>
+{
+    public void Configure(EntityTypeBuilder<Employee> builder)
+    {
+        builder.Property(e => e.AutoNumber)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.Code)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.FirstName)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.MiddleName)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.LastName)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.JobDescription)
+            .HasMaxLength(GlobalConsts.StringLengthMedium);
+
+        builder.Property(e => e.GradeId)
+            .HasMaxLength(GlobalConsts.StringLengthId);
+
+        builder.Property(e => e.BranchId)
+            .HasMaxLength(GlobalConsts.StringLengthId);
+
+        builder.Property(e => e.DepartmentId)
+            .HasMaxLength(GlobalConsts.StringLengthId);
+
+        builder.Property(e => e.DesignationId)
+            .HasMaxLength(GlobalConsts.StringLengthId);
+
+        builder.Property(e => e.BasicSalary)
+            .HasColumnType("decimal(18,2)");
+
+        builder.Property(e => e.SalaryBankName)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.SalaryBankAccountName)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.SalaryBankAccountNumber)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.PlaceOfBirth)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.Gender)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.MaritalStatus)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.Religion)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.BloodType)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.IdentityNumber)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.TaxNumber)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.LastEducation)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.EmployeeStatus)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.EmploymentType)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.StreetAddress)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.City)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.StateProvince)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.ZipCode)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.Phone)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.Email)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.SocialMediaLinkedIn)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.SocialMediaX)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.SocialMediaFacebook)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.SocialMediaInstagram)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.SocialMediaTikTok)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.OtherInformation1)
+            .HasMaxLength(GlobalConsts.StringLengthMedium);
+
+        builder.Property(e => e.OtherInformation2)
+            .HasMaxLength(GlobalConsts.StringLengthMedium);
+
+        builder.Property(e => e.OtherInformation3)
+            .HasMaxLength(GlobalConsts.StringLengthMedium);
+
+        builder.HasOne(e => e.Grade)
+            .WithMany()
+            .HasForeignKey(e => e.GradeId)
+            .OnDelete(DeleteBehavior.NoAction);
+
+        builder.HasOne(e => e.Branch)
+            .WithMany()
+            .HasForeignKey(e => e.BranchId)
+            .OnDelete(DeleteBehavior.NoAction);
+
+        builder.HasOne(e => e.Department)
+            .WithMany()
+            .HasForeignKey(e => e.DepartmentId)
+            .OnDelete(DeleteBehavior.NoAction);
+
+        builder.HasOne(e => e.Designation)
+            .WithMany()
+            .HasForeignKey(e => e.DesignationId)
+            .OnDelete(DeleteBehavior.NoAction);
+
+        builder.HasMany(e => e.EmployeeIncome) 
+            .WithOne(ei => ei.Employee)
+            .HasForeignKey(ei => ei.EmployeeId)
+            .OnDelete(DeleteBehavior.NoAction); 
+
+        builder.HasMany(e => e.EmployeeDeduction) 
+            .WithOne(ed => ed.Employee)
+            .HasForeignKey(ed => ed.EmployeeId)
+            .OnDelete(DeleteBehavior.NoAction);
+
+        builder.HasIndex(e => e.AutoNumber).IsUnique();
+        builder.HasIndex(e => e.Code).IsUnique();
+        builder.HasIndex(e => e.FirstName);
+        builder.HasIndex(e => e.LastName);
+        builder.HasIndex(e => e.IdentityNumber);
+        builder.HasIndex(e => e.Email);
+        builder.HasIndex(e => e.GradeId);
+        builder.HasIndex(e => e.BranchId);
+        builder.HasIndex(e => e.DepartmentId);
+        builder.HasIndex(e => e.DesignationId);
+    }
+}
@@ -0,0 +1,41 @@
+using Indotalent.Data.Entities;
+using Indotalent.Shared.Consts;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+
+namespace Indotalent.Infrastructure.Database.MsSQL.Configuration;
+
+public class EmployeeDeductionConfiguration : IEntityTypeConfiguration<EmployeeDeduction>
+{
+    public void Configure(EntityTypeBuilder<EmployeeDeduction> builder)
+    {
+        builder.Property(e => e.AutoNumber)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.EmployeeId)
+            .HasMaxLength(GlobalConsts.StringLengthId);
+
+        builder.Property(e => e.DeductionId)
+            .HasMaxLength(GlobalConsts.StringLengthId);
+
+        builder.Property(e => e.Description)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.Amount)
+            .HasPrecision(18, 2);
+
+        builder.HasIndex(e => e.AutoNumber).IsUnique();
+        builder.HasIndex(e => e.EmployeeId);
+        builder.HasIndex(e => e.DeductionId);
+
+        builder.HasOne(e => e.Employee)
+            .WithMany(p => p.EmployeeDeduction) 
+            .HasForeignKey(e => e.EmployeeId)
+            .OnDelete(DeleteBehavior.NoAction);
+
+        builder.HasOne(e => e.Deduction)
+            .WithMany()
+            .HasForeignKey(e => e.DeductionId)
+            .OnDelete(DeleteBehavior.NoAction);
+    }
+}
@@ -0,0 +1,41 @@
+using Indotalent.Data.Entities;
+using Indotalent.Shared.Consts;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+
+namespace Indotalent.Infrastructure.Database.MsSQL.Configuration;
+
+public class EmployeeIncomeConfiguration : IEntityTypeConfiguration<EmployeeIncome>
+{
+    public void Configure(EntityTypeBuilder<EmployeeIncome> builder)
+    {
+        builder.Property(e => e.AutoNumber)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.EmployeeId)
+            .HasMaxLength(GlobalConsts.StringLengthId);
+
+        builder.Property(e => e.IncomeId)
+            .HasMaxLength(GlobalConsts.StringLengthId);
+
+        builder.Property(e => e.Description)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.Amount)
+            .HasPrecision(18, 2);
+
+        builder.HasIndex(e => e.AutoNumber).IsUnique();
+        builder.HasIndex(e => e.EmployeeId);
+        builder.HasIndex(e => e.IncomeId);
+
+        builder.HasOne(e => e.Employee)
+            .WithMany(p => p.EmployeeIncome) 
+            .HasForeignKey(e => e.EmployeeId)
+            .OnDelete(DeleteBehavior.NoAction);
+
+        builder.HasOne(e => e.Income)
+            .WithMany()
+            .HasForeignKey(e => e.IncomeId)
+            .OnDelete(DeleteBehavior.NoAction);
+    }
+}
@@ -0,0 +1,35 @@
+using Indotalent.Data.Entities;
+using Indotalent.Shared.Consts;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+
+namespace Indotalent.Infrastructure.Database.MsSQL.Configuration;
+
+public class EvaluationConfiguration : IEntityTypeConfiguration<Evaluation>
+{
+    public void Configure(EntityTypeBuilder<Evaluation> builder)
+    {
+        builder.Property(e => e.AutoNumber).HasMaxLength(GlobalConsts.StringLengthShort);
+        builder.Property(e => e.EmployeeId).HasMaxLength(GlobalConsts.StringLengthId);
+        builder.Property(e => e.EvaluatorId).HasMaxLength(GlobalConsts.StringLengthId);
+        builder.Property(e => e.Period).HasMaxLength(GlobalConsts.StringLengthShort);
+        builder.Property(e => e.FinalScore).HasMaxLength(GlobalConsts.StringLengthShort);
+        builder.Property(e => e.Rating).HasMaxLength(GlobalConsts.StringLengthShort);
+        builder.Property(e => e.EvaluationNote).HasMaxLength(GlobalConsts.StringLengthMedium);
+        builder.Property(e => e.Status).HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.HasIndex(e => e.AutoNumber).IsUnique();
+        builder.HasIndex(e => e.EmployeeId);
+        builder.HasIndex(e => e.EvaluatorId);
+
+        builder.HasOne(e => e.Employee)
+            .WithMany()
+            .HasForeignKey(e => e.EmployeeId)
+            .OnDelete(DeleteBehavior.NoAction);
+
+        builder.HasOne(e => e.Evaluator)
+            .WithMany()
+            .HasForeignKey(e => e.EvaluatorId)
+            .OnDelete(DeleteBehavior.NoAction);
+    }
+}
@@ -0,0 +1,37 @@
+using Indotalent.Data.Entities;
+using Indotalent.Shared.Consts;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+
+namespace Indotalent.Infrastructure.Database.MsSQL.Configuration;
+
+public class GradeConfiguration : IEntityTypeConfiguration<Grade>
+{
+    public void Configure(EntityTypeBuilder<Grade> builder)
+    {
+        builder.Property(e => e.AutoNumber)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.Code)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.Name)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.Status)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.Description)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.SalaryFrom)
+            .HasColumnType("decimal(18,2)");
+
+        builder.Property(e => e.SalaryTo)
+            .HasColumnType("decimal(18,2)");
+
+        builder.HasIndex(e => e.AutoNumber).IsUnique();
+        builder.HasIndex(e => e.Code).IsUnique();
+        builder.HasIndex(e => e.Name);
+    }
+}
@@ -0,0 +1,37 @@
+using Indotalent.Data.Entities;
+using Indotalent.Shared.Consts;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+
+namespace Indotalent.Infrastructure.Database.MsSQL.Configuration;
+
+public class IncomeConfiguration : IEntityTypeConfiguration<Income>
+{
+    public void Configure(EntityTypeBuilder<Income> builder)
+    {
+        builder.Property(e => e.AutoNumber)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.Code)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.Name)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.Type)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.CalculationBase)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.Status)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.Description)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.HasIndex(e => e.AutoNumber).IsUnique();
+        builder.HasIndex(e => e.Code).IsUnique();
+        builder.HasIndex(e => e.Name);
+    }
+}
@@ -0,0 +1,30 @@
+using Indotalent.Data.Entities;
+using Indotalent.Shared.Consts;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+
+namespace Indotalent.Infrastructure.Database.MsSQL.Configuration;
+
+public class LeaveBalanceConfiguration : IEntityTypeConfiguration<LeaveBalance>
+{
+    public void Configure(EntityTypeBuilder<LeaveBalance> builder)
+    {
+        builder.Property(e => e.AutoNumber)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.HasOne(e => e.Employee)
+            .WithMany()
+            .HasForeignKey(e => e.EmployeeId)
+            .OnDelete(DeleteBehavior.Restrict);
+
+        builder.HasOne(e => e.LeaveCategory)
+            .WithMany()
+            .HasForeignKey(e => e.LeaveCategoryId)
+            .OnDelete(DeleteBehavior.Restrict);
+
+        builder.HasIndex(e => e.AutoNumber).IsUnique();
+        builder.HasIndex(e => e.Year);
+
+        builder.HasIndex(e => new { e.EmployeeId, e.LeaveCategoryId, e.Year }).IsUnique();
+    }
+}
@@ -0,0 +1,31 @@
+using Indotalent.Data.Entities;
+using Indotalent.Shared.Consts;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+
+namespace Indotalent.Infrastructure.Database.MsSQL.Configuration;
+
+public class LeaveCategoryConfiguration : IEntityTypeConfiguration<LeaveCategory>
+{
+    public void Configure(EntityTypeBuilder<LeaveCategory> builder)
+    {
+        builder.Property(e => e.AutoNumber)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.Code)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.Name)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.Description)
+            .HasMaxLength(GlobalConsts.StringLengthMedium);
+
+        builder.Property(e => e.Status)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.HasIndex(e => e.AutoNumber).IsUnique();
+        builder.HasIndex(e => e.Code).IsUnique();
+        builder.HasIndex(e => e.Name);
+    }
+}
@@ -0,0 +1,45 @@
+using Indotalent.Data.Entities;
+using Indotalent.Shared.Consts;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+
+namespace Indotalent.Infrastructure.Database.MsSQL.Configuration;
+
+public class LeaveRequestConfiguration : IEntityTypeConfiguration<LeaveRequest>
+{
+    public void Configure(EntityTypeBuilder<LeaveRequest> builder)
+    {
+        builder.Property(e => e.AutoNumber)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.Reason)
+            .HasMaxLength(GlobalConsts.StringLengthMedium);
+
+        builder.Property(e => e.Status)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.AttachmentPath)
+            .HasMaxLength(GlobalConsts.StringLengthMedium);
+
+        builder.Property(e => e.ApproverId)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.RejectReason)
+            .HasMaxLength(GlobalConsts.StringLengthMedium);
+
+        builder.HasOne(e => e.Employee)
+            .WithMany()
+            .HasForeignKey(e => e.EmployeeId)
+            .OnDelete(DeleteBehavior.Restrict);
+
+        builder.HasOne(e => e.LeaveCategory)
+            .WithMany()
+            .HasForeignKey(e => e.LeaveCategoryId)
+            .OnDelete(DeleteBehavior.Restrict);
+
+        builder.HasIndex(e => e.AutoNumber).IsUnique();
+        builder.HasIndex(e => e.Status);
+        builder.HasIndex(e => e.StartDate);
+        builder.HasIndex(e => e.EndDate);
+    }
+}
@@ -0,0 +1,32 @@
+using Indotalent.Data.Entities;
+using Indotalent.Shared.Consts;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+
+namespace Indotalent.Infrastructure.Database.MsSQL.Configuration;
+
+public class PayrollComponentConfiguration : IEntityTypeConfiguration<PayrollComponent>
+{
+    public void Configure(EntityTypeBuilder<PayrollComponent> builder)
+    {
+
+        builder.Property(e => e.PayrollDetailId)
+            .HasMaxLength(GlobalConsts.StringLengthId);
+
+        builder.Property(e => e.ComponentName)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.ComponentType)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.Description)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.HasOne(e => e.PayrollDetail)
+            .WithMany(d => d.Components)
+            .HasForeignKey(e => e.PayrollDetailId)
+            .OnDelete(DeleteBehavior.NoAction);
+
+        builder.HasIndex(e => e.ComponentName);
+    }
+}
@@ -0,0 +1,36 @@
+using Indotalent.Data.Entities;
+using Indotalent.Shared.Consts;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+
+namespace Indotalent.Infrastructure.Database.MsSQL.Configuration;
+
+public class PayrollDetailConfiguration : IEntityTypeConfiguration<PayrollDetail>
+{
+    public void Configure(EntityTypeBuilder<PayrollDetail> builder)
+    {
+        builder.Property(e => e.PayrollProcessId)
+            .HasMaxLength(GlobalConsts.StringLengthId);
+
+        builder.Property(e => e.EmployeeId)
+            .HasMaxLength(GlobalConsts.StringLengthId);
+
+        builder.Property(e => e.EmployeeCode)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.EmployeeName)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.HasOne(e => e.PayrollProcess)
+            .WithMany()
+            .HasForeignKey(e => e.PayrollProcessId)
+            .OnDelete(DeleteBehavior.NoAction);
+
+        builder.HasOne(e => e.Employee)
+            .WithMany()
+            .HasForeignKey(e => e.EmployeeId)
+            .OnDelete(DeleteBehavior.NoAction);
+
+        builder.HasIndex(e => e.EmployeeCode);
+    }
+}
@@ -0,0 +1,30 @@
+using Indotalent.Data.Entities;
+using Indotalent.Shared.Consts;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+
+namespace Indotalent.Infrastructure.Database.MsSQL.Configuration;
+
+public class PayrollProcessConfiguration : IEntityTypeConfiguration<PayrollProcess>
+{
+    public void Configure(EntityTypeBuilder<PayrollProcess> builder)
+    {
+        builder.Property(e => e.AutoNumber)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.PeriodName)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.Status)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.ProcessedBy)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.Description)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.HasIndex(e => e.AutoNumber).IsUnique();
+        builder.HasIndex(e => e.PeriodName);
+    }
+}
@@ -0,0 +1,27 @@
+using Indotalent.Data.Entities;
+using Indotalent.Shared.Consts;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+
+namespace Indotalent.Infrastructure.Database.MsSQL.Configuration;
+
+public class PromotionConfiguration : IEntityTypeConfiguration<Promotion>
+{
+    public void Configure(EntityTypeBuilder<Promotion> builder)
+    {
+        builder.Property(p => p.AutoNumber).HasMaxLength(GlobalConsts.StringLengthShort);
+        builder.Property(p => p.EmployeeId).HasMaxLength(GlobalConsts.StringLengthId);
+        builder.Property(p => p.FromGrade).HasMaxLength(GlobalConsts.StringLengthShort);
+        builder.Property(p => p.ToGrade).HasMaxLength(GlobalConsts.StringLengthShort);
+        builder.Property(p => p.PromotionNote).HasMaxLength(GlobalConsts.StringLengthMedium);
+        builder.Property(p => p.Status).HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.HasIndex(p => p.AutoNumber).IsUnique();
+        builder.HasIndex(p => p.EmployeeId);
+
+        builder.HasOne(p => p.Employee)
+            .WithMany()
+            .HasForeignKey(p => p.EmployeeId)
+            .OnDelete(DeleteBehavior.NoAction);
+    }
+}
@@ -0,0 +1,39 @@
+using Indotalent.Data.Entities;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+
+namespace Indotalent.Infrastructure.Database.MsSQL.Configuration;
+
+public class LogConfiguration : IEntityTypeConfiguration<SerilogLogs>
+{
+    public void Configure(EntityTypeBuilder<SerilogLogs> builder)
+    {
+        builder.ToTable("SerilogLogs");
+
+        builder.HasKey(e => e.Id);
+
+        builder.Property(e => e.Message)
+            .HasMaxLength(2000);
+
+        builder.Property(e => e.Level)
+            .HasMaxLength(128);
+
+        builder.Property(e => e.TimeStamp)
+            .IsRequired();
+
+        builder.Property(e => e.Exception)
+            .HasColumnType("nvarchar(max)");
+
+        builder.Property(e => e.Properties)
+            .HasColumnType("nvarchar(max)");
+
+        builder.Property(e => e.MessageTemplate)
+            .HasMaxLength(2000);
+
+        builder.Property(e => e.LogEvent)
+            .HasColumnType("nvarchar(max)");
+
+        builder.HasIndex(e => e.TimeStamp)
+               .HasDatabaseName("IX_SerilogLogs_TimeStamp");
+    }
+}
@@ -0,0 +1,36 @@
+using Indotalent.Data.Entities;
+using Indotalent.Shared.Consts;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+
+namespace Indotalent.Infrastructure.Database.MsSQL.Configuration;
+
+public class TaxConfiguration : IEntityTypeConfiguration<Tax>
+{
+    public void Configure(EntityTypeBuilder<Tax> builder)
+    {
+
+        builder.Property(e => e.AutoNumber)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.Code)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.Name)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.PercentageValue)
+            .HasColumnType("decimal(18,2)");
+
+        builder.Property(e => e.Category)
+            .HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.Property(e => e.Description)
+            .HasMaxLength(GlobalConsts.StringLengthMedium);
+
+
+        builder.HasIndex(e => e.AutoNumber).IsUnique();
+        builder.HasIndex(e => e.Code).IsUnique();
+        builder.HasIndex(e => e.Name);
+    }
+}
@@ -0,0 +1,39 @@
+using Indotalent.Data.Entities;
+using Indotalent.Shared.Consts;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+
+namespace Indotalent.Infrastructure.Database.MsSQL.Configuration;
+
+public class TransferConfiguration : IEntityTypeConfiguration<Transfer>
+{
+    public void Configure(EntityTypeBuilder<Transfer> builder)
+    {
+        builder.Property(t => t.AutoNumber).HasMaxLength(GlobalConsts.StringLengthShort);
+        builder.Property(t => t.EmployeeId).HasMaxLength(GlobalConsts.StringLengthId);
+
+        builder.Property(t => t.FromBranchId).HasMaxLength(GlobalConsts.StringLengthId);
+        builder.Property(t => t.FromDepartmentId).HasMaxLength(GlobalConsts.StringLengthId);
+        builder.Property(t => t.FromDesignationId).HasMaxLength(GlobalConsts.StringLengthId);
+
+        builder.Property(t => t.ToBranchId).HasMaxLength(GlobalConsts.StringLengthId);
+        builder.Property(t => t.ToDepartmentId).HasMaxLength(GlobalConsts.StringLengthId);
+        builder.Property(t => t.ToDesignationId).HasMaxLength(GlobalConsts.StringLengthId);
+
+        builder.Property(t => t.TransferNote).HasMaxLength(GlobalConsts.StringLengthMedium);
+        builder.Property(t => t.Status).HasMaxLength(GlobalConsts.StringLengthShort);
+
+        builder.HasIndex(t => t.AutoNumber).IsUnique();
+        builder.HasIndex(t => t.EmployeeId);
+
+        builder.HasOne(t => t.Employee).WithMany().HasForeignKey(t => t.EmployeeId).OnDelete(DeleteBehavior.NoAction);
+
+        builder.HasOne(t => t.FromBranch).WithMany().HasForeignKey(t => t.FromBranchId).OnDelete(DeleteBehavior.NoAction);
+        builder.HasOne(t => t.FromDepartment).WithMany().HasForeignKey(t => t.FromDepartmentId).OnDelete(DeleteBehavior.NoAction);
+        builder.HasOne(t => t.FromDesignation).WithMany().HasForeignKey(t => t.FromDesignationId).OnDelete(DeleteBehavior.NoAction);
+
+        builder.HasOne(t => t.ToBranch).WithMany().HasForeignKey(t => t.ToBranchId).OnDelete(DeleteBehavior.NoAction);
+        builder.HasOne(t => t.ToDepartment).WithMany().HasForeignKey(t => t.ToDepartmentId).OnDelete(DeleteBehavior.NoAction);
+        builder.HasOne(t => t.ToDesignation).WithMany().HasForeignKey(t => t.ToDesignationId).OnDelete(DeleteBehavior.NoAction);
+    }
+}
@@ -0,0 +1,23 @@
+namespace Indotalent.Infrastructure.Database.MsSQL;
+
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.DependencyInjection;
+
+public static class MsSQLConfiguration
+{
+    public static IServiceCollection AddMsSQLContext<TContext>(this IServiceCollection services, string connectionString)
+        where TContext : DbContext
+    {
+        services.AddDbContext<TContext>(options =>
+            options.UseSqlServer(connectionString, m =>
+                m.MigrationsAssembly(typeof(TContext).Assembly.FullName)));
+        return services;
+    }
+
+    public static void InitializeDatabase<TContext>(IServiceProvider serviceProvider) where TContext : DbContext
+    {
+        using var scope = serviceProvider.CreateScope();
+        var context = scope.ServiceProvider.GetRequiredService<TContext>();
+        context.Database.EnsureCreated();
+    }
+}
@@ -0,0 +1,17 @@
+namespace Indotalent.Infrastructure.Database.MySQL;
+
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.DependencyInjection;
+
+public static class MySQLConfiguration
+{
+    public static IServiceCollection AddMySQLContext<TContext>(this IServiceCollection services, string connectionString)
+        where TContext : DbContext
+    {
+        services.AddDbContext<TContext>(options =>
+            options.UseMySQL(connectionString, m =>
+                m.MigrationsAssembly(typeof(TContext).Assembly.FullName)));
+
+        return services;
+    }
+}
@@ -0,0 +1,17 @@
+namespace Indotalent.Infrastructure.Database.PostgreSQL;
+
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.DependencyInjection;
+
+public static class PostgreSQLConfiguration
+{
+    public static IServiceCollection AddPostgreSQLContext<TContext>(this IServiceCollection services, string connectionString)
+        where TContext : DbContext
+    {
+        services.AddDbContext<TContext>(options =>
+            options.UseNpgsql(connectionString, m =>
+                m.MigrationsAssembly(typeof(TContext).Assembly.FullName)));
+
+        return services;
+    }
+}
@@ -0,0 +1,46 @@
+
+
+using Indotalent.Data.Entities;
+using Indotalent.Infrastructure.Email.Mailgun;
+using Indotalent.Infrastructure.Email.Mailjet;
+using Indotalent.Infrastructure.Email.SendGrid;
+using Indotalent.Infrastructure.Email.Smtp;
+using Microsoft.AspNetCore.Identity;
+
+namespace Indotalent.Infrastructure.Email;
+
+public static class DI
+{
+    public static IServiceCollection AddEmailService(this IServiceCollection services, IConfiguration configuration)
+    {
+        services.AddScoped<EmailService>();
+
+
+        var emailSettings = configuration.GetSection("EmailSettings").Get<EmailSettingsModel>() ?? new EmailSettingsModel();
+
+        if (emailSettings.SendGrid?.IsUsed == true)
+        {
+            services.AddHttpClient<IEmailSender, SendGridEmailSender>();
+        }
+        else if (emailSettings.Mailgun?.IsUsed == true)
+        {
+            services.AddHttpClient<IEmailSender, MailgunEmailSender>();
+        }
+        else if (emailSettings.Mailjet?.IsUsed == true)
+        {
+            services.AddHttpClient<IEmailSender, MailjetEmailSender>();
+        }
+        else if (emailSettings.Smtp?.IsUsed == true)
+        {
+            services.AddTransient<IEmailSender, SmtpEmailSender>();
+        }
+        else
+        {
+            services.AddScoped<IEmailSender, DefaultEmailSender>();
+        }
+
+        services.AddTransient<IEmailSender<ApplicationUser>, IdentityEmailManager<ApplicationUser>>();
+
+        return services;
+    }
+}
@@ -0,0 +1,21 @@
+namespace Indotalent.Infrastructure.Email;
+
+public class DefaultEmailSender : IEmailSender
+{
+    private readonly ILogger<DefaultEmailSender> _logger;
+
+    public DefaultEmailSender(ILogger<DefaultEmailSender> logger)
+    {
+        _logger = logger;
+    }
+
+    public Task SendEmailAsync(string email, string subject, string htmlMessage)
+    {
+        _logger.LogWarning("Email sending requested but NO active email provider found in EmailSettings.");
+        _logger.LogInformation("To: {Email}", email);
+        _logger.LogInformation("Subject: {Subject}", subject);
+        _logger.LogInformation("Content: {Message}", htmlMessage);
+
+        return Task.CompletedTask;
+    }
+}
@@ -0,0 +1,10 @@
+using Microsoft.Extensions.Options;
+
+namespace Indotalent.Infrastructure.Email;
+
+public class EmailService(IOptions<EmailSettingsModel> options)
+{
+    private readonly EmailSettingsModel _settings = options.Value;
+
+    public EmailSettingsModel GetConfiguration() => _settings;
+}
@@ -0,0 +1,14 @@
+using Indotalent.Infrastructure.Email.Mailgun;
+using Indotalent.Infrastructure.Email.Mailjet;
+using Indotalent.Infrastructure.Email.SendGrid;
+using Indotalent.Infrastructure.Email.Smtp;
+
+namespace Indotalent.Infrastructure.Email;
+
+public class EmailSettingsModel
+{
+    public SendGridSettingsModel SendGrid { get; set; } = new();
+    public MailgunSettingsModel Mailgun { get; set; } = new();
+    public MailjetSettingsModel Mailjet { get; set; } = new();
+    public SmtpSettingsModel Smtp { get; set; } = new();
+}
@@ -0,0 +1,6 @@
+namespace Indotalent.Infrastructure.Email;
+
+public interface IEmailSender
+{
+    Task SendEmailAsync(string email, string subject, string htmlMessage);
+}
@@ -0,0 +1,35 @@
+using Microsoft.AspNetCore.Identity;
+
+namespace Indotalent.Infrastructure.Email;
+
+public class IdentityEmailManager<TUser> : IEmailSender<TUser> where TUser : class
+{
+    private readonly IEmailSender _emailSender;
+
+    public IdentityEmailManager(IEmailSender emailSender)
+    {
+        _emailSender = emailSender;
+    }
+
+    public Task SendConfirmationLinkAsync(TUser user, string email, string confirmationLink)
+    {
+        var message = confirmationLink.Contains("<")
+            ? confirmationLink
+            : $"Please confirm your account by clicking this link: <a href='{confirmationLink}'>Confirm Account</a>";
+
+        return _emailSender.SendEmailAsync(email, "Account Confirmation", message);
+    }
+
+    public Task SendPasswordResetLinkAsync(TUser user, string email, string resetLink)
+    {
+        var message = resetLink.Contains("<")
+            ? resetLink
+            : $"To reset your password, please click the following link: <a href='{resetLink}'>Reset Password</a>";
+
+        return _emailSender.SendEmailAsync(email, "Password Reset Request", message);
+    }
+
+    public Task SendPasswordResetCodeAsync(TUser user, string email, string resetCode) =>
+        _emailSender.SendEmailAsync(email, "Your Password Reset Code",
+            $"Your password reset security code is: <b>{resetCode}</b>. Please enter this code to proceed with the reset process.");
+}
@@ -0,0 +1,44 @@
+using Microsoft.Extensions.Options;
+using System.Net.Http.Headers;
+using System.Text;
+
+namespace Indotalent.Infrastructure.Email.Mailgun;
+
+public class MailgunEmailSender : IEmailSender
+{
+    private readonly MailgunSettingsModel _settings;
+    private readonly HttpClient _httpClient;
+
+    public MailgunEmailSender(IOptions<EmailSettingsModel> emailOptions, HttpClient httpClient)
+    {
+        _settings = emailOptions.Value.Mailgun;
+        _httpClient = httpClient;
+    }
+
+    public async Task SendEmailAsync(string email, string subject, string htmlMessage)
+    {
+        if (string.IsNullOrEmpty(_settings.ApiKey) || string.IsNullOrEmpty(_settings.Domain))
+        {
+            throw new Exception("Mailgun configuration is missing ApiKey or Domain.");
+        }
+
+        var authToken = Encoding.ASCII.GetBytes($"api:{_settings.ApiKey}");
+        _httpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Basic", Convert.ToBase64String(authToken));
+
+        var formContent = new FormUrlEncodedContent(new[]
+        {
+            new KeyValuePair<string, string>("from", _settings.FromEmail),
+            new KeyValuePair<string, string>("to", email),
+            new KeyValuePair<string, string>("subject", subject),
+            new KeyValuePair<string, string>("html", htmlMessage)
+        });
+
+        var response = await _httpClient.PostAsync($"https://api.mailgun.net/v3/{_settings.Domain}/messages", formContent);
+
+        if (!response.IsSuccessStatusCode)
+        {
+            var errorBody = await response.Content.ReadAsStringAsync();
+            throw new Exception($"Failed to send email via Mailgun. Status: {response.StatusCode}, Error: {errorBody}");
+        }
+    }
+}
@@ -0,0 +1,9 @@
+namespace Indotalent.Infrastructure.Email.Mailgun;
+
+public class MailgunSettingsModel
+{
+    public bool IsUsed { get; set; }
+    public string ApiKey { get; set; } = string.Empty;
+    public string Domain { get; set; } = string.Empty;
+    public string FromEmail { get; set; } = string.Empty;
+}
@@ -0,0 +1,52 @@
+using Microsoft.Extensions.Options;
+using System.Net.Http.Headers;
+using System.Text;
+using System.Text.Json;
+
+namespace Indotalent.Infrastructure.Email.Mailjet;
+
+public class MailjetEmailSender : IEmailSender
+{
+    private readonly MailjetSettingsModel _settings;
+    private readonly HttpClient _httpClient;
+
+    public MailjetEmailSender(IOptions<EmailSettingsModel> emailOptions, HttpClient httpClient)
+    {
+        _settings = emailOptions.Value.Mailjet;
+        _httpClient = httpClient;
+    }
+
+    public async Task SendEmailAsync(string email, string subject, string htmlMessage)
+    {
+        if (string.IsNullOrEmpty(_settings.ApiKey) || string.IsNullOrEmpty(_settings.ApiSecret))
+        {
+            throw new Exception("Mailjet configuration is missing ApiKey or ApiSecret.");
+        }
+
+        var authToken = Encoding.UTF8.GetBytes($"{_settings.ApiKey}:{_settings.ApiSecret}");
+        _httpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Basic", Convert.ToBase64String(authToken));
+
+        var payload = new
+        {
+            Messages = new[]
+            {
+                new
+                {
+                    From = new { Email = _settings.FromEmail, Name = "Mailjet System" },
+                    To = new[] { new { Email = email } },
+                    Subject = subject,
+                    HTMLPart = htmlMessage
+                }
+            }
+        };
+
+        var content = new StringContent(JsonSerializer.Serialize(payload), Encoding.UTF8, "application/json");
+        var response = await _httpClient.PostAsync("https://api.mailjet.com/v3.1/send", content);
+
+        if (!response.IsSuccessStatusCode)
+        {
+            var errorBody = await response.Content.ReadAsStringAsync();
+            throw new Exception($"Failed to send email via Mailjet. Status: {response.StatusCode}, Error: {errorBody}");
+        }
+    }
+}
@@ -0,0 +1,9 @@
+namespace Indotalent.Infrastructure.Email.Mailjet;
+
+public class MailjetSettingsModel
+{
+    public bool IsUsed { get; set; }
+    public string ApiKey { get; set; } = string.Empty;
+    public string ApiSecret { get; set; } = string.Empty;
+    public string FromEmail { get; set; } = string.Empty;
+}
@@ -0,0 +1,58 @@
+using Microsoft.Extensions.Options;
+using System.Net.Http.Headers;
+using System.Text;
+using System.Text.Json;
+
+namespace Indotalent.Infrastructure.Email.SendGrid;
+
+public class SendGridEmailSender : IEmailSender
+{
+    private readonly SendGridSettingsModel _settings;
+    private readonly HttpClient _httpClient;
+
+    public SendGridEmailSender(IOptions<EmailSettingsModel> emailOptions, HttpClient httpClient)
+    {
+        _settings = emailOptions.Value.SendGrid;
+        _httpClient = httpClient;
+    }
+
+    public async Task SendEmailAsync(string email, string subject, string htmlMessage)
+    {
+        if (string.IsNullOrEmpty(_settings.ApiKey))
+        {
+            throw new Exception("SendGrid configuration is missing ApiKey.");
+        }
+
+        _httpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", _settings.ApiKey);
+
+        var payload = new
+        {
+            personalizations = new[]
+            {
+                new
+                {
+                    to = new[] { new { email = email } }
+                }
+            },
+            from = new { email = _settings.FromEmail, name = "SendGrid System" },
+            subject = subject,
+            content = new[]
+            {
+                new
+                {
+                    type = "text/html",
+                    value = htmlMessage
+                }
+            }
+        };
+
+        var content = new StringContent(JsonSerializer.Serialize(payload), Encoding.UTF8, "application/json");
+        var response = await _httpClient.PostAsync("https://api.sendgrid.com/v3/mail/send", content);
+
+        if (!response.IsSuccessStatusCode)
+        {
+            var errorBody = await response.Content.ReadAsStringAsync();
+            throw new Exception($"Failed to send email via SendGrid. Status: {response.StatusCode}, Error: {errorBody}");
+        }
+    }
+}
@@ -0,0 +1,8 @@
+namespace Indotalent.Infrastructure.Email.SendGrid;
+
+public class SendGridSettingsModel
+{
+    public bool IsUsed { get; set; }
+    public string ApiKey { get; set; } = string.Empty;
+    public string FromEmail { get; set; } = string.Empty;
+}
@@ -0,0 +1,54 @@
+using MailKit.Net.Smtp;
+using MailKit.Security;
+using Microsoft.Extensions.Options;
+using MimeKit;
+
+namespace Indotalent.Infrastructure.Email.Smtp;
+
+public class SmtpEmailSender : IEmailSender
+{
+    private readonly SmtpSettingsModel _settings;
+
+    public SmtpEmailSender(IOptions<EmailSettingsModel> emailOptions)
+    {
+        _settings = emailOptions.Value.Smtp;
+    }
+
+    public async Task SendEmailAsync(string email, string subject, string htmlMessage)
+    {
+        var message = new MimeMessage();
+
+        message.From.Add(new MailboxAddress(_settings.FromName, _settings.FromAddress));
+
+        message.To.Add(MailboxAddress.Parse(email));
+
+        message.Subject = subject;
+
+        var bodyBuilder = new BodyBuilder
+        {
+            HtmlBody = htmlMessage
+        };
+        message.Body = bodyBuilder.ToMessageBody();
+
+        using var client = new SmtpClient();
+        try
+        {
+            await client.ConnectAsync(_settings.Host, _settings.Port, SecureSocketOptions.Auto);
+
+            if (!string.IsNullOrEmpty(_settings.UserName))
+            {
+                await client.AuthenticateAsync(_settings.UserName, _settings.Password);
+            }
+
+            await client.SendAsync(message);
+        }
+        catch (Exception ex)
+        {
+            throw new Exception($"Failed to send email via SMTP to {email} via {_settings.Host}. Error: {ex.Message}", ex);
+        }
+        finally
+        {
+            await client.DisconnectAsync(true);
+        }
+    }
+}
@@ -0,0 +1,12 @@
+namespace Indotalent.Infrastructure.Email.Smtp;
+
+public class SmtpSettingsModel
+{
+    public bool IsUsed { get; set; }
+    public string Host { get; set; } = string.Empty;
+    public int Port { get; set; }
+    public string UserName { get; set; } = string.Empty;
+    public string Password { get; set; } = string.Empty;
+    public string FromAddress { get; set; } = string.Empty;
+    public string FromName { get; set; } = string.Empty;
+}
@@ -0,0 +1,8 @@
+namespace Indotalent.Infrastructure.File.Avatar;
+
+public class AvatarStorageModel
+{
+    public bool IsUsed { get; set; }
+    public string StoragePath { get; set; } = "wwwroot/avatars";
+    public string BaseUrl { get; set; } = string.Empty;
+}
@@ -0,0 +1,9 @@
+namespace Indotalent.Infrastructure.File.Aws;
+
+public class AwsS3SettingsModel
+{
+    public bool IsUsed { get; set; }
+    public string AccessKey { get; set; } = string.Empty;
+    public string SecretKey { get; set; } = string.Empty;
+    public string BucketName { get; set; } = string.Empty;
+}
@@ -0,0 +1,8 @@
+namespace Indotalent.Infrastructure.File.Azure;
+
+public class AzureBlobSettingsModel
+{
+    public bool IsUsed { get; set; }
+    public string ConnectionString { get; set; } = string.Empty;
+    public string ContainerName { get; set; } = string.Empty;
+}
@@ -0,0 +1,13 @@
+
+
+namespace Indotalent.Infrastructure.File;
+
+public static class DI
+{
+    public static IServiceCollection AddFileService(this IServiceCollection services)
+    {
+        services.AddScoped<FileStorageService>();
+
+        return services;
+    }
+}
@@ -0,0 +1,7 @@
+namespace Indotalent.Infrastructure.File.Dropbox;
+
+public class DropboxSettingsModel
+{
+    public bool IsUsed { get; set; }
+    public string AccessToken { get; set; } = string.Empty;
+}
@@ -0,0 +1,107 @@
+using Microsoft.Extensions.Options;
+
+namespace Indotalent.Infrastructure.File;
+
+public class FileStorageService
+{
+    private readonly FileStorageSettingsModel _settings;
+    private readonly IWebHostEnvironment _environment;
+
+    private readonly string[] _allowedAvatarExtensions = { ".jpg", ".jpeg", ".png" };
+    private readonly string[] _allowedDocExtensions = { ".pdf", ".xls", ".xlsx", ".doc", ".docx", ".txt" };
+
+    public FileStorageService(IOptions<FileStorageSettingsModel> options, IWebHostEnvironment environment)
+    {
+        _settings = options.Value;
+        _environment = environment;
+    }
+
+    public FileStorageSettingsModel GetConfiguration() => _settings;
+
+    private string GetPhysicalPath(string subFolder)
+    {
+        return Path.Combine(_environment.ContentRootPath, "wwwroot", subFolder);
+    }
+
+    public async Task<string> SaveAvatarAsync(string userId, byte[] fileData, string extension)
+    {
+        var avatarSettings = _settings.Avatar;
+        if (!avatarSettings.IsUsed) throw new Exception("Avatar storage is disabled.");
+
+        var ext = extension.ToLower();
+        if (!_allowedAvatarExtensions.Contains(ext))
+            throw new Exception("Invalid image type. Only JPG, JPEG, and PNG are allowed.");
+
+        var folderPath = GetPhysicalPath(avatarSettings.StoragePath);
+
+        if (!Directory.Exists(folderPath))
+        {
+            Directory.CreateDirectory(folderPath);
+        }
+
+        var fileName = $"{Guid.NewGuid()}{ext}";
+        var filePath = Path.Combine(folderPath, fileName);
+
+        await System.IO.File.WriteAllBytesAsync(filePath, fileData);
+
+        return fileName;
+    }
+
+    public void DeleteOldAvatar(string? fileName)
+    {
+        if (string.IsNullOrEmpty(fileName)) return;
+
+        try
+        {
+            var folderPath = GetPhysicalPath(_settings.Avatar.StoragePath);
+            var filePath = Path.Combine(folderPath, fileName);
+
+            if (System.IO.File.Exists(filePath))
+            {
+                System.IO.File.Delete(filePath);
+            }
+        }
+        catch { }
+    }
+
+    public async Task<string> SaveFileAsync(byte[] fileData, string extension)
+    {
+        var localSettings = _settings.Local;
+        if (!localSettings.IsUsed) throw new Exception("Local file storage is disabled.");
+
+        var ext = extension.ToLower();
+        if (!_allowedDocExtensions.Contains(ext))
+            throw new Exception($"File type {ext} is not allowed.");
+
+        var folderPath = GetPhysicalPath(localSettings.StoragePath);
+
+        if (!Directory.Exists(folderPath))
+        {
+            Directory.CreateDirectory(folderPath);
+        }
+
+        var fileName = $"{Guid.NewGuid()}{ext}";
+        var filePath = Path.Combine(folderPath, fileName);
+
+        await System.IO.File.WriteAllBytesAsync(filePath, fileData);
+
+        return fileName;
+    }
+
+    public void DeleteFile(string? fileName)
+    {
+        if (string.IsNullOrEmpty(fileName)) return;
+
+        try
+        {
+            var folderPath = GetPhysicalPath(_settings.Local.StoragePath);
+            var filePath = Path.Combine(folderPath, fileName);
+
+            if (System.IO.File.Exists(filePath))
+            {
+                System.IO.File.Delete(filePath);
+            }
+        }
+        catch { }
+    }
+}
@@ -0,0 +1,18 @@
+using Indotalent.Infrastructure.File.Avatar;
+using Indotalent.Infrastructure.File.Aws;
+using Indotalent.Infrastructure.File.Azure;
+using Indotalent.Infrastructure.File.Dropbox;
+using Indotalent.Infrastructure.File.Google;
+using Indotalent.Infrastructure.File.Local;
+
+namespace Indotalent.Infrastructure.File;
+
+public class FileStorageSettingsModel
+{
+    public AvatarStorageModel Avatar { get; set; } = new();
+    public LocalStorageModel Local { get; set; } = new();
+    public AwsS3SettingsModel AwsS3 { get; set; } = new();
+    public AzureBlobSettingsModel AzureBlob { get; set; } = new();
+    public GoogleCloudSettingsModel GoogleCloud { get; set; } = new();
+    public DropboxSettingsModel Dropbox { get; set; } = new();
+}
@@ -0,0 +1,8 @@
+namespace Indotalent.Infrastructure.File.Google;
+
+public class GoogleCloudSettingsModel
+{
+    public bool IsUsed { get; set; }
+    public string ProjectId { get; set; } = string.Empty;
+    public string BucketName { get; set; } = string.Empty;
+}
@@ -0,0 +1,8 @@
+namespace Indotalent.Infrastructure.File.Local;
+
+public class LocalStorageModel
+{
+    public bool IsUsed { get; set; }
+    public string StoragePath { get; set; } = "wwwroot/uploads";
+    public string BaseUrl { get; set; } = string.Empty;
+}
@@ -0,0 +1,11 @@
+namespace Indotalent.Infrastructure.Logging;
+
+public static class DI
+{
+    public static IServiceCollection AddLoggingService(this IServiceCollection services)
+    {
+        services.AddScoped<LoggingService>();
+
+        return services;
+    }
+}
@@ -0,0 +1,10 @@
+using Indotalent.Infrastructure.Logging.Serilog;
+
+namespace Indotalent.Infrastructure.Logging;
+
+public class LoggerSettingsModel
+{
+    public FileLoggerModel File { get; set; } = new();
+    public DatabaseLoggerModel Database { get; set; } = new();
+    public SeqLoggerModel Seq { get; set; } = new();
+}
@@ -0,0 +1,10 @@
+using Microsoft.Extensions.Options;
+
+namespace Indotalent.Infrastructure.Logging;
+
+public class LoggingService(IOptions<LoggerSettingsModel> options)
+{
+    private readonly LoggerSettingsModel _settings = options.Value;
+
+    public LoggerSettingsModel GetConfiguration() => _settings;
+}
@@ -0,0 +1,8 @@
+namespace Indotalent.Infrastructure.Logging.Serilog;
+
+public class DatabaseLoggerModel
+{
+    public bool IsUsed { get; set; }
+    public string TableName { get; set; } = "SerilogLogs";
+    public bool AutoCreateSqlTable { get; set; } = true;
+}
@@ -0,0 +1,8 @@
+namespace Indotalent.Infrastructure.Logging.Serilog;
+
+public class FileLoggerModel
+{
+    public bool IsUsed { get; set; }
+    public string Path { get; set; } = "Logs/log-.txt";
+    public string RollingInterval { get; set; } = "Day"; // Day, Hour, Month
+}
@@ -0,0 +1,7 @@
+namespace Indotalent.Infrastructure.Logging.Serilog;
+
+public class SeqLoggerModel
+{
+    public bool IsUsed { get; set; }
+    public string ServerUrl { get; set; } = string.Empty;
+}
@@ -0,0 +1,81 @@
+using Serilog;
+using Serilog.Enrichers.Sensitive;
+using Serilog.Events;
+using Serilog.Sinks.MSSqlServer;
+
+namespace Indotalent.Infrastructure.Logging.Serilog;
+
+public static class SerilogBuilder
+{
+    public static void AddSerilogBuilder(this WebApplicationBuilder builder)
+    {
+        var settings = builder.Configuration.GetSection("LoggerSettings").Get<LoggerSettingsModel>();
+
+        var loggerConfiguration = new LoggerConfiguration()
+            .ReadFrom.Configuration(builder.Configuration)
+            .Enrich.FromLogContext()
+            .Enrich.WithMachineName()
+            .Enrich.WithThreadId()
+            .Enrich.WithSensitiveDataMasking(options =>
+            {
+                options.MaskValue = "***MASKED***";
+
+                options.MaskProperties.Add(MaskProperty.WithDefaults("Password"));
+                options.MaskProperties.Add(MaskProperty.WithDefaults("Secret"));
+                options.MaskProperties.Add(MaskProperty.WithDefaults("Token"));
+                options.MaskProperties.Add(MaskProperty.WithDefaults("ApiKey"));
+                options.MaskProperties.Add(MaskProperty.WithDefaults("ConfirmPassword"));
+
+            })
+            .WriteTo.Console(outputTemplate: "[{Timestamp:HH:mm:ss} {Level:u3}] {Message:lj}{NewLine}{Exception}");
+
+        if (settings?.File?.IsUsed == true)
+        {
+            var interval = settings.File.RollingInterval.ToLower() switch
+            {
+                "hour" => RollingInterval.Hour,
+                "month" => RollingInterval.Month,
+                _ => RollingInterval.Day
+            };
+
+            loggerConfiguration.WriteTo.File(
+                path: settings.File.Path,
+                rollingInterval: interval,
+                restrictedToMinimumLevel: LogEventLevel.Error,
+                outputTemplate: "{Timestamp:yyyy-MM-dd HH:mm:ss.fff zzz} [{Level:u3}] {Message:lj}{NewLine}{Exception}");
+        }
+
+        if (settings?.Database?.IsUsed == true)
+        {
+            var columnOptions = new ColumnOptions();
+            columnOptions.Store.Add(StandardColumn.LogEvent);
+            columnOptions.LogEvent.ColumnName = "LogEvent";
+            var connectionString = builder.Configuration.GetSection("DatabaseSettings:MsSQL:ConnectionString").Value;
+
+            if (!string.IsNullOrEmpty(connectionString))
+            {
+                loggerConfiguration.WriteTo.MSSqlServer(
+                    connectionString: connectionString,
+                    sinkOptions: new MSSqlServerSinkOptions
+                    {
+                        TableName = settings.Database.TableName,
+                        AutoCreateSqlTable = settings.Database.AutoCreateSqlTable
+                    },
+                    columnOptions: columnOptions,
+                    restrictedToMinimumLevel: LogEventLevel.Error);
+            }
+        }
+
+        if (settings?.Seq?.IsUsed == true && !string.IsNullOrEmpty(settings.Seq.ServerUrl))
+        {
+            // Send logs to the Seq server (Self-hosted dashboard by Datalust [https://datalust.co/])
+            loggerConfiguration.WriteTo.Seq(
+                serverUrl: settings.Seq.ServerUrl,
+                restrictedToMinimumLevel: LogEventLevel.Information
+            );
+        }
+
+        Log.Logger = loggerConfiguration.CreateLogger();
+        builder.Host.UseSerilog();
+    }
+}
@@ -0,0 +1,35 @@
+using Indotalent.Data.Entities;
+using Indotalent.Shared.Consts;
+using Microsoft.AspNetCore.OData;
+using Microsoft.OData.Edm;
+using Microsoft.OData.ModelBuilder;
+
+namespace Indotalent.Infrastructure.OData;
+
+public static class DI
+{
+    public static IServiceCollection AddODataService(this IServiceCollection services)
+    {
+        services.AddControllers().AddOData(options =>
+        {
+            options.AddRouteComponents("odata", GetEdmModel())
+                   .Select()
+                   .Filter()
+                   .OrderBy()
+                   .Expand()
+                   .Count()
+                   .SetMaxTop(GlobalConsts.ODataMaxTop);
+        });
+
+        return services;
+    }
+
+    private static IEdmModel GetEdmModel()
+    {
+        var builder = new ODataConventionModelBuilder();
+
+        builder.EntitySet<SerilogLogs>("SerilogLogs");
+
+        return builder.GetEdmModel();
+    }
+}
@@ -0,0 +1,12 @@
+using System.Text.Json.Serialization;
+
+namespace Indotalent.Infrastructure.OData;
+
+public class ODataResponse<T>
+{
+    [JsonPropertyName("value")]
+    public List<T> Value { get; set; } = new();
+
+    [JsonPropertyName("@odata.count")]
+    public int Count { get; set; }
+}