Add category support to products commands and queries

src/CMSMicroservice.Application/ProductsCQ/Commands/CreateNewProducts/CreateNewProductsCommand.cs

@@ -25,5 +25,7 @@ public record CreateNewProductsCommand : IRequest<CreateNewProductsResponseDto>
     public int ViewCount { get; init; }
     // 
     public int RemainingCount { get; init; }
+    // لیست شناسه دسته‌بندی‌های محصول
+    public ICollection<long>? CategoryIds { get; init; }
 
-}
+}

src/CMSMicroservice.Application/ProductsCQ/Commands/CreateNewProducts/CreateNewProductsCommandHandler.cs

@@ -1,3 +1,4 @@
+using CMSMicroservice.Domain.Entities;
 using CMSMicroservice.Domain.Events;
 namespace CMSMicroservice.Application.ProductsCQ.Commands.CreateNewProducts;
 public class CreateNewProductsCommandHandler : IRequestHandler<CreateNewProductsCommand, CreateNewProductsResponseDto>
@@ -14,8 +15,30 @@ public class CreateNewProductsCommandHandler : IRequestHandler<CreateNewProducts
     {
         var entity = request.Adapt<Products>();
         await _context.Productss.AddAsync(entity, cancellationToken);
-        entity.AddDomainEvent(new CreateNewProductsEvent(entity));
         await _context.SaveChangesAsync(cancellationToken);
+
+        // ثبت دسته‌بندی‌های محصول (در صورت ارسال)
+        if (request.CategoryIds is { Count: > 0 })
+        {
+            var distinctCategoryIds = request.CategoryIds
+                .Where(id => id > 0)
+                .Distinct()
+                .ToList();
+
+            foreach (var categoryId in distinctCategoryIds)
+            {
+                var rel = new PruductCategory
+                {
+                    ProductId = entity.Id,
+                    CategoryId = categoryId
+                };
+                await _context.PruductCategorys.AddAsync(rel, cancellationToken);
+            }
+
+            await _context.SaveChangesAsync(cancellationToken);
+        }
+
+        entity.AddDomainEvent(new CreateNewProductsEvent(entity));
         return entity.Adapt<CreateNewProductsResponseDto>();
     }
 }

src/CMSMicroservice.Application/ProductsCQ/Commands/UpdateProducts/UpdateProductsCommand.cs

@@ -27,5 +27,7 @@ public record UpdateProductsCommand : IRequest<Unit>
     public int ViewCount { get; init; }
     // 
     public int RemainingCount { get; init; }
+    // لیست شناسه دسته‌بندی‌های محصول
+    public ICollection<long>? CategoryIds { get; init; }
 
-}
+}

src/CMSMicroservice.Application/ProductsCQ/Commands/UpdateProducts/UpdateProductsCommandHandler.cs

@@ -1,4 +1,8 @@
+using CMSMicroservice.Application.Common.Exceptions;
+using CMSMicroservice.Application.Common.Interfaces;
+using CMSMicroservice.Domain.Entities;
 using CMSMicroservice.Domain.Events;
+using Microsoft.EntityFrameworkCore;
 namespace CMSMicroservice.Application.ProductsCQ.Commands.UpdateProducts;
 public class UpdateProductsCommandHandler : IRequestHandler<UpdateProductsCommand, Unit>
 {
@@ -12,9 +16,47 @@ public class UpdateProductsCommandHandler : IRequestHandler<UpdateProductsComman
     public async Task<Unit> Handle(UpdateProductsCommand request, CancellationToken cancellationToken)
     {
         var entity = await _context.Productss
-            .FirstOrDefaultAsync(x => x.Id == request.Id, cancellationToken) ?? throw new NotFoundException(nameof(Products), request.Id);
+            .FirstOrDefaultAsync(x => x.Id == request.Id, cancellationToken)
+                     ?? throw new NotFoundException(nameof(Products), request.Id);
+
         request.Adapt(entity);
         _context.Productss.Update(entity);
+
+        // به‌روزرسانی دسته‌بندی‌های محصول در صورت ارسال CategoryIds
+        if (request.CategoryIds is not null)
+        {
+            var targetIds = (request.CategoryIds ?? Array.Empty<long>())
+                .Where(id => id > 0)
+                .Distinct()
+                .ToHashSet();
+
+            var existingRelations = await _context.PruductCategorys
+                .Where(x => x.ProductId == entity.Id)
+                .ToListAsync(cancellationToken);
+
+            var existingIds = existingRelations
+                .Select(x => x.CategoryId)
+                .ToHashSet();
+
+            var toAdd = targetIds.Except(existingIds).ToList();
+            var toRemove = existingRelations.Where(x => !targetIds.Contains(x.CategoryId)).ToList();
+
+            foreach (var categoryId in toAdd)
+            {
+                var rel = new PruductCategory
+                {
+                    ProductId = entity.Id,
+                    CategoryId = categoryId
+                };
+                await _context.PruductCategorys.AddAsync(rel, cancellationToken);
+            }
+
+            if (toRemove.Count > 0)
+            {
+                _context.PruductCategorys.RemoveRange(toRemove);
+            }
+        }
+
         entity.AddDomainEvent(new UpdateProductsEvent(entity));
         await _context.SaveChangesAsync(cancellationToken);
         return Unit.Value;

src/CMSMicroservice.Application/ProductsCQ/Queries/GetAllProductsByFilter/GetAllProductsByFilterQueryHandler.cs

@@ -32,11 +32,35 @@ public class GetAllProductsByFilterQueryHandler : IRequestHandler<GetAllProducts
                 .Where(x => request.Filter.RemainingCount == null || x.RemainingCount == request.Filter.RemainingCount)
 ;
         }
+        var meta = await query.GetMetaData(request.PaginationState, cancellationToken);
+
+        var models = await query
+            .PaginatedListAsync(paginationState: request.PaginationState)
+            .Select(x => new GetAllProductsByFilterResponseModel
+            {
+                Id = x.Id,
+                Title = x.Title,
+                Description = x.Description,
+                ShortInfomation = x.ShortInfomation,
+                FullInformation = x.FullInformation,
+                Price = x.Price,
+                Discount = x.Discount,
+                Rate = x.Rate,
+                ImagePath = x.ImagePath,
+                ThumbnailPath = x.ThumbnailPath,
+                SaleCount = x.SaleCount,
+                ViewCount = x.ViewCount,
+                RemainingCount = x.RemainingCount,
+                CategoryIds = x.PruductCategorys
+                    .Select(pc => pc.CategoryId)
+                    .ToList()
+            })
+            .ToListAsync(cancellationToken);
+
         return new GetAllProductsByFilterResponseDto
         {
-            MetaData = await query.GetMetaData(request.PaginationState, cancellationToken),
-            Models = await query.PaginatedListAsync(paginationState: request.PaginationState)
-                .ProjectToType<GetAllProductsByFilterResponseModel>().ToListAsync(cancellationToken)
+            MetaData = meta,
+            Models = models
         };        
     }
 }

src/CMSMicroservice.Application/ProductsCQ/Queries/GetAllProductsByFilter/GetAllProductsByFilterResponseDto.cs

@@ -6,7 +6,9 @@ public class GetAllProductsByFilterResponseDto
     //مدل خروجی 
     public List<GetAllProductsByFilterResponseModel>? Models { get; set; }
 
-}public class GetAllProductsByFilterResponseModel
+}
+
+public class GetAllProductsByFilterResponseModel
 {
     // 
     public long Id { get; set; }
@@ -34,4 +36,6 @@ public class GetAllProductsByFilterResponseDto
     public int ViewCount { get; set; }
     // 
     public int RemainingCount { get; set; }
+    // لیست شناسه دسته‌بندی‌های محصول
+    public List<long> CategoryIds { get; set; } = new();
 }

src/CMSMicroservice.Application/ProductsCQ/Queries/GetProducts/GetProductsQueryHandler.cs

@@ -14,7 +14,25 @@ public class GetProductsQueryHandler : IRequestHandler<GetProductsQuery, GetProd
         var response = await _context.Productss
             .AsNoTracking()
             .Where(x => x.Id == request.Id)
-            .ProjectToType<GetProductsResponseDto>()
+            .Select(x => new GetProductsResponseDto
+            {
+                Id = x.Id,
+                Title = x.Title,
+                Description = x.Description,
+                ShortInfomation = x.ShortInfomation,
+                FullInformation = x.FullInformation,
+                Price = x.Price,
+                Discount = x.Discount,
+                Rate = x.Rate,
+                ImagePath = x.ImagePath,
+                ThumbnailPath = x.ThumbnailPath,
+                SaleCount = x.SaleCount,
+                ViewCount = x.ViewCount,
+                RemainingCount = x.RemainingCount,
+                CategoryIds = x.PruductCategorys
+                    .Select(pc => pc.CategoryId)
+                    .ToList()
+            })
             .FirstOrDefaultAsync(cancellationToken);
 
         return response ?? throw new NotFoundException(nameof(Products), request.Id);

src/CMSMicroservice.Application/ProductsCQ/Queries/GetProducts/GetProductsResponseDto.cs

@@ -27,5 +27,7 @@ public class GetProductsResponseDto
     public int ViewCount { get; set; }
     // 
     public int RemainingCount { get; set; }
+    // لیست شناسه دسته‌بندی‌های محصول
+    public List<long> CategoryIds { get; set; } = new();
 
-}
+}