using Indotalent.Infrastructure.Database;
using MediatR;
using Microsoft.EntityFrameworkCore;

namespace Indotalent.Features.Leave.LeaveRequest.Cqrs;

public class GetLeaveRequestByIdResponse
{
    public string? Id { get; set; }
    public string? AutoNumber { get; set; }
    public string? EmployeeId { get; set; }
    public string? EmployeeName { get; set; }
    public string? LeaveCategoryId { get; set; }
    public string? LeaveType { get; set; }
    public DateTime StartDate { get; set; }
    public DateTime EndDate { get; set; }
    public double Days { get; set; }
    public string? Reason { get; set; }
    public string? Status { get; set; }
    public string? AttachmentPath { get; set; }
    public string? ApproverId { get; set; }
    public DateTime? ActionDate { get; set; }
    public string? RejectReason { get; set; }
    public DateTimeOffset? CreatedAt { get; set; }
    public string? CreatedBy { get; set; }
    public DateTimeOffset? UpdatedAt { get; set; }
    public string? UpdatedBy { get; set; }
}

public record GetLeaveRequestByIdQuery(string Id) : IRequest<GetLeaveRequestByIdResponse?>;

public class GetLeaveRequestByIdHandler : IRequestHandler<GetLeaveRequestByIdQuery, GetLeaveRequestByIdResponse?>
{
    private readonly AppDbContext _context;

    public GetLeaveRequestByIdHandler(AppDbContext context) => _context = context;

    public async Task<GetLeaveRequestByIdResponse?> Handle(GetLeaveRequestByIdQuery request, CancellationToken cancellationToken)
    {
        return await _context.LeaveRequest
            .AsNoTracking()
            .Include(x => x.Employee)
            .Include(x => x.LeaveCategory)
            .Where(x => x.Id == request.Id)
            .Select(x => new GetLeaveRequestByIdResponse
            {
                Id = x.Id,
                AutoNumber = x.AutoNumber,
                EmployeeId = x.EmployeeId,
                EmployeeName = x.Employee != null ? $"{x.Employee.FirstName} {x.Employee.LastName}" : string.Empty,
                LeaveCategoryId = x.LeaveCategoryId,
                LeaveType = x.LeaveCategory != null ? x.LeaveCategory.Name : string.Empty,
                StartDate = x.StartDate,
                EndDate = x.EndDate,
                Days = x.Days,
                Reason = x.Reason,
                Status = x.Status,
                AttachmentPath = x.AttachmentPath,
                ApproverId = x.ApproverId,
                ActionDate = x.ActionDate,
                RejectReason = x.RejectReason,
                CreatedAt = x.CreatedAt,
                CreatedBy = x.CreatedBy,
                UpdatedAt = x.UpdatedAt,
                UpdatedBy = x.UpdatedBy
            })
            .FirstOrDefaultAsync(cancellationToken);
    }
}