initial commit

Features/Pipeline/Expense/Cqrs/GetExpenseLookupHandler.cs

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+using Indotalent.Infrastructure.Database;
+using MediatR;
+using Microsoft.EntityFrameworkCore;
+using Indotalent.Data.Enums;
+
+namespace Indotalent.Features.Pipeline.Expense.Cqrs;
+
+public class ExpenseLookupResponse
+{
+    public List<LookupItem> Campaigns { get; set; } = new();
+    public List<LookupItem> Statuses { get; set; } = new();
+}
+
+public class LookupItem
+{
+    public string? Id { get; set; }
+    public string? Name { get; set; }
+    public int Value { get; set; }
+}
+
+public record GetExpenseLookupQuery() : IRequest<ExpenseLookupResponse>;
+
+public class GetExpenseLookupHandler : IRequestHandler<GetExpenseLookupQuery, ExpenseLookupResponse>
+{
+    private readonly AppDbContext _context;
+
+    public GetExpenseLookupHandler(AppDbContext context) => _context = context;
+
+    public async Task<ExpenseLookupResponse> Handle(GetExpenseLookupQuery request, CancellationToken cancellationToken)
+    {
+        var response = new ExpenseLookupResponse();
+
+        response.Campaigns = await _context.Campaign
+            .AsNoTracking()
+            .OrderBy(x => x.Title)
+            .Select(x => new LookupItem { Id = x.Id, Name = x.Title })
+            .ToListAsync(cancellationToken);
+
+        response.Statuses = Enum.GetValues(typeof(ExpenseStatus))
+            .Cast<ExpenseStatus>()
+            .Select(x => new LookupItem
+            {
+                Value = (int)x,
+                Name = x.ToString()
+            })
+            .ToList();
+
+        return response;
+    }
+}