Refactored endpoints to use services

PostFundManagement.Api/Endpoints/Users/GetUsersEndpoint.cs

@@ -1,8 +1,10 @@
+using PostFundManagement.Application.Extensions;
+using PostFundManagement.Application.Users;
 using PostFundManagement.Domain;
 using PostFundManagement.Domain.Abstractions;
 using PostFundManagement.Domain.Api;
 using PostFundManagement.Domain.Extensions;
-using PostFundManagement.Infrastructure.Database;
+using PostFundManagement.Domain.Models;
 
 namespace PostFundManagement.Api.Endpoints.Users;
 
@@ -11,47 +13,20 @@ public class GetUsersEndpoint : IEndpoint
 {
     public void Map(IEndpointRouteBuilder builder)
     {
-        builder.MapGet("api/users", async (IDbContextFactory<ApplicationDbContext> contextFactory, 
-            int page = 1, int pageSize = 10, ActivityStatus? status = null, string? email = null, string? 
-            sortBy = null, bool sortDescending = false, CancellationToken cancellationToken = default) =>
+        builder.MapPost("api/users/{page:int}/{pageSize:int}", async (UserFilterRequest request, UserService service, 
+            int page = 1, int pageSize = 100, CancellationToken cancellationToken = default) =>
         {
-            if (page < 1) page = 1;
-            if (pageSize < 1) pageSize = 10;
-            if (pageSize > 100) pageSize = 100;
+            var result = await service.GetUsersAsync(Pagination.Create(page, pageSize), request, cancellationToken);
 
-            using var context = await contextFactory.CreateDbContextAsync(cancellationToken);
-
-            var query = context.Users.AsNoTracking();
-
-            if (status.HasValue)
-                query = query.Where(u => u.Status == status.Value);
-
-            if (!string.IsNullOrWhiteSpace(email))
-                query = query.Where(u => u.Email != null && u.Email.Contains(email));
-
-            if (!string.IsNullOrWhiteSpace(sortBy))
-                query = sortBy.ToLowerInvariant() switch
-                {
-                    "email" => sortDescending ? query.OrderByDescending(u => u.Email) : query.OrderBy(u => u.Email),
-                    "lastloginat" => sortDescending ? query.OrderByDescending(u => u.LastLoginAt) : query.OrderBy(u => u.LastLoginAt),
-                    "status" => sortDescending ? query.OrderByDescending(u => u.Status) : query.OrderBy(u => u.Status),
-                    _ => sortDescending ? query.OrderByDescending(u => u.Id) : query.OrderBy(u => u.Id)
-                };
-            else
-                query = query.OrderBy(u => u.Id);
-
-            var totalCount = await query.CountAsync(cancellationToken);
-
-            var items = await query.Skip((page - 1) * pageSize).Take(pageSize).ToListAsync(cancellationToken);
-
-            return Results.Ok(new { Items = items, TotalCount = totalCount, Page = page, PageSize = pageSize });
+            return result.IsSuccess
+                ? Results.Ok(result.Value)
+                : Results.NotFound();
         })
-        .RequireAuthorization()
         .WithDescription("Paginated, searchable directory of system users. Supports filtering by ActivityStatus, searching by Email, and sorting")
         .WithName(typeof(GetUsersEndpoint).ToEndpointName())
         .MapToApiVersion(new ApiVersion(1))
-        .Produces(StatusCodes.Status200OK)
-        .Produces(StatusCodes.Status400BadRequest)
+        .Produces<User[]>(StatusCodes.Status200OK)
+        .Produces(StatusCodes.Status404NotFound)
         .Produces(StatusCodes.Status401Unauthorized)
         .WithTags(EndpointTags.Users);
     }