Add validators and services for Product Galleries and Product Tags

- Implemented Create, Delete, Get, and Update validators for Product Galleries.
- Added Create, Delete, Get, and Update validators for Product Tags.
- Created service classes for handling Discount Categories, Discount Orders, Discount Products, Discount Shopping Cart, Product Categories, Product Galleries, and Product Tags.
- Each service class integrates with CQRS for command and query handling.
- Established mapping profiles for Product Galleries.

src/CMSMicroservice.Application/ProductCategoryCQ/Commands/CreateNewProductCategory/CreateNewPruductCategoryCommand.cs

@@ -0,0 +1,9 @@
+namespace CMSMicroservice.Application.ProductCategoryCQ.Commands.CreateNewProductCategory;
+public record CreateNewProductCategoryCommand : IRequest<CreateNewProductCategoryResponseDto>
+{
+    //شناسه محصول 
+    public long ProductId { get; init; }
+    //شناسه دسته بندی 
+    public long CategoryId { get; init; }
+
+}

src/CMSMicroservice.Application/ProductCategoryCQ/Commands/CreateNewProductCategory/CreateNewPruductCategoryCommandHandler.cs

@@ -0,0 +1,21 @@
+using CMSMicroservice.Domain.Events;
+namespace CMSMicroservice.Application.ProductCategoryCQ.Commands.CreateNewProductCategory;
+public class CreateNewProductCategoryCommandHandler : IRequestHandler<CreateNewProductCategoryCommand, CreateNewProductCategoryResponseDto>
+{
+    private readonly IApplicationDbContext _context;
+
+    public CreateNewProductCategoryCommandHandler(IApplicationDbContext context)
+    {
+        _context = context;
+    }
+
+    public async Task<CreateNewProductCategoryResponseDto> Handle(CreateNewProductCategoryCommand request,
+        CancellationToken cancellationToken)
+    {
+        var entity = request.Adapt<ProductCategory>();
+        await _context.ProductCategories.AddAsync(entity, cancellationToken);
+        entity.AddDomainEvent(new CreateNewProductCategoryEvent(entity));
+        await _context.SaveChangesAsync(cancellationToken);
+        return entity.Adapt<CreateNewProductCategoryResponseDto>();
+    }
+}

src/CMSMicroservice.Application/ProductCategoryCQ/Commands/CreateNewProductCategory/CreateNewPruductCategoryCommandValidator.cs

@@ -0,0 +1,18 @@
+namespace CMSMicroservice.Application.ProductCategoryCQ.Commands.CreateNewProductCategory;
+public class CreateNewProductCategoryCommandValidator : AbstractValidator<CreateNewProductCategoryCommand>
+{
+    public CreateNewProductCategoryCommandValidator()
+    {
+        RuleFor(model => model.ProductId)
+            .NotNull();
+        RuleFor(model => model.CategoryId)
+            .NotNull();
+    }
+    public Func<object, string, Task<IEnumerable<string>>> ValidateValue => async (model, propertyName) =>
+    {
+        var result = await ValidateAsync(ValidationContext<CreateNewProductCategoryCommand>.CreateWithOptions((CreateNewProductCategoryCommand)model, x => x.IncludeProperties(propertyName)));
+        if (result.IsValid)
+            return Array.Empty<string>();
+        return result.Errors.Select(e => e.ErrorMessage);
+    };
+}

src/CMSMicroservice.Application/ProductCategoryCQ/Commands/CreateNewProductCategory/CreateNewPruductCategoryResponseDto.cs

@@ -0,0 +1,7 @@
+namespace CMSMicroservice.Application.ProductCategoryCQ.Commands.CreateNewProductCategory;
+public class CreateNewProductCategoryResponseDto
+{
+    //شناسه 
+    public long Id { get; set; }
+
+}

src/CMSMicroservice.Application/ProductCategoryCQ/Commands/DeleteProductCategory/DeletePruductCategoryCommand.cs

@@ -0,0 +1,7 @@
+namespace CMSMicroservice.Application.ProductCategoryCQ.Commands.DeleteProductCategory;
+public record DeleteProductCategoryCommand : IRequest<Unit>
+{
+    //شناسه 
+    public long Id { get; init; }
+
+}

src/CMSMicroservice.Application/ProductCategoryCQ/Commands/DeleteProductCategory/DeletePruductCategoryCommandHandler.cs

@@ -0,0 +1,22 @@
+using CMSMicroservice.Domain.Events;
+namespace CMSMicroservice.Application.ProductCategoryCQ.Commands.DeleteProductCategory;
+public class DeleteProductCategoryCommandHandler : IRequestHandler<DeleteProductCategoryCommand, Unit>
+{
+    private readonly IApplicationDbContext _context;
+
+    public DeleteProductCategoryCommandHandler(IApplicationDbContext context)
+    {
+        _context = context;
+    }
+
+    public async Task<Unit> Handle(DeleteProductCategoryCommand request, CancellationToken cancellationToken)
+    {
+        var entity = await _context.ProductCategories
+            .FirstOrDefaultAsync(x => x.Id == request.Id, cancellationToken) ?? throw new NotFoundException(nameof(ProductCategory), request.Id);
+        entity.IsDeleted = true;
+        _context.ProductCategories.Update(entity);
+        entity.AddDomainEvent(new DeleteProductCategoryEvent(entity));
+        await _context.SaveChangesAsync(cancellationToken);
+        return Unit.Value;
+    }
+}

src/CMSMicroservice.Application/ProductCategoryCQ/Commands/DeleteProductCategory/DeletePruductCategoryCommandValidator.cs

@@ -0,0 +1,16 @@
+namespace CMSMicroservice.Application.ProductCategoryCQ.Commands.DeleteProductCategory;
+public class DeleteProductCategoryCommandValidator : AbstractValidator<DeleteProductCategoryCommand>
+{
+    public DeleteProductCategoryCommandValidator()
+    {
+        RuleFor(model => model.Id)
+            .NotNull();
+    }
+    public Func<object, string, Task<IEnumerable<string>>> ValidateValue => async (model, propertyName) =>
+    {
+        var result = await ValidateAsync(ValidationContext<DeleteProductCategoryCommand>.CreateWithOptions((DeleteProductCategoryCommand)model, x => x.IncludeProperties(propertyName)));
+        if (result.IsValid)
+            return Array.Empty<string>();
+        return result.Errors.Select(e => e.ErrorMessage);
+    };
+}

src/CMSMicroservice.Application/ProductCategoryCQ/Commands/UpdateProductCategory/UpdatePruductCategoryCommand.cs

@@ -0,0 +1,11 @@
+namespace CMSMicroservice.Application.ProductCategoryCQ.Commands.UpdateProductCategory;
+public record UpdateProductCategoryCommand : IRequest<Unit>
+{
+    //شناسه 
+    public long Id { get; init; }
+    //شناسه محصول 
+    public long ProductId { get; init; }
+    //شناسه دسته بندی 
+    public long CategoryId { get; init; }
+
+}

src/CMSMicroservice.Application/ProductCategoryCQ/Commands/UpdateProductCategory/UpdatePruductCategoryCommandHandler.cs

@@ -0,0 +1,22 @@
+using CMSMicroservice.Domain.Events;
+namespace CMSMicroservice.Application.ProductCategoryCQ.Commands.UpdateProductCategory;
+public class UpdateProductCategoryCommandHandler : IRequestHandler<UpdateProductCategoryCommand, Unit>
+{
+    private readonly IApplicationDbContext _context;
+
+    public UpdateProductCategoryCommandHandler(IApplicationDbContext context)
+    {
+        _context = context;
+    }
+
+    public async Task<Unit> Handle(UpdateProductCategoryCommand request, CancellationToken cancellationToken)
+    {
+        var entity = await _context.ProductCategories
+            .FirstOrDefaultAsync(x => x.Id == request.Id, cancellationToken) ?? throw new NotFoundException(nameof(ProductCategory), request.Id);
+        request.Adapt(entity);
+        _context.ProductCategories.Update(entity);
+        entity.AddDomainEvent(new UpdateProductCategoryEvent(entity));
+        await _context.SaveChangesAsync(cancellationToken);
+        return Unit.Value;
+    }
+}

src/CMSMicroservice.Application/ProductCategoryCQ/Commands/UpdateProductCategory/UpdatePruductCategoryCommandValidator.cs

@@ -0,0 +1,20 @@
+namespace CMSMicroservice.Application.ProductCategoryCQ.Commands.UpdateProductCategory;
+public class UpdateProductCategoryCommandValidator : AbstractValidator<UpdateProductCategoryCommand>
+{
+    public UpdateProductCategoryCommandValidator()
+    {
+        RuleFor(model => model.Id)
+            .NotNull();
+        RuleFor(model => model.ProductId)
+            .NotNull();
+        RuleFor(model => model.CategoryId)
+            .NotNull();
+    }
+    public Func<object, string, Task<IEnumerable<string>>> ValidateValue => async (model, propertyName) =>
+    {
+        var result = await ValidateAsync(ValidationContext<UpdateProductCategoryCommand>.CreateWithOptions((UpdateProductCategoryCommand)model, x => x.IncludeProperties(propertyName)));
+        if (result.IsValid)
+            return Array.Empty<string>();
+        return result.Errors.Select(e => e.ErrorMessage);
+    };
+}

src/CMSMicroservice.Application/ProductCategoryCQ/EventHandlers/CreateNewProductCategoryEventHandlers/CreateNewPruductCategoryEventHandler.cs

@@ -0,0 +1,22 @@
+using CMSMicroservice.Domain.Events;
+using Microsoft.Extensions.Logging;
+
+namespace CMSMicroservice.Application.ProductCategoryCQ.EventHandlers;
+
+public class CreateNewProductCategoryEventHandler : INotificationHandler<CreateNewProductCategoryEvent>
+{
+    private readonly ILogger<
+        CreateNewProductCategoryEventHandler> _logger;
+
+    public CreateNewProductCategoryEventHandler(ILogger<CreateNewProductCategoryEventHandler> logger)
+    {
+        _logger = logger;
+    }
+
+    public Task Handle(CreateNewProductCategoryEvent notification, CancellationToken cancellationToken)
+    {
+        _logger.LogInformation("Domain Event: {DomainEvent}", notification.GetType().Name);
+
+        return Task.CompletedTask;
+    }
+}

src/CMSMicroservice.Application/ProductCategoryCQ/EventHandlers/DeleteProductCategoryEventHandlers/DeletePruductCategoryEventHandler.cs

@@ -0,0 +1,22 @@
+using CMSMicroservice.Domain.Events;
+using Microsoft.Extensions.Logging;
+
+namespace CMSMicroservice.Application.ProductCategoryCQ.EventHandlers;
+
+public class DeleteProductCategoryEventHandler : INotificationHandler<DeleteProductCategoryEvent>
+{
+    private readonly ILogger<
+        DeleteProductCategoryEventHandler> _logger;
+
+    public DeleteProductCategoryEventHandler(ILogger<DeleteProductCategoryEventHandler> logger)
+    {
+        _logger = logger;
+    }
+
+    public Task Handle(DeleteProductCategoryEvent notification, CancellationToken cancellationToken)
+    {
+        _logger.LogInformation("Domain Event: {DomainEvent}", notification.GetType().Name);
+
+        return Task.CompletedTask;
+    }
+}

src/CMSMicroservice.Application/ProductCategoryCQ/EventHandlers/UpdateProductCategoryEventHandlers/UpdatePruductCategoryEventHandler.cs

@@ -0,0 +1,22 @@
+using CMSMicroservice.Domain.Events;
+using Microsoft.Extensions.Logging;
+
+namespace CMSMicroservice.Application.ProductCategoryCQ.EventHandlers;
+
+public class UpdateProductCategoryEventHandler : INotificationHandler<UpdateProductCategoryEvent>
+{
+    private readonly ILogger<
+        UpdateProductCategoryEventHandler> _logger;
+
+    public UpdateProductCategoryEventHandler(ILogger<UpdateProductCategoryEventHandler> logger)
+    {
+        _logger = logger;
+    }
+
+    public Task Handle(UpdateProductCategoryEvent notification, CancellationToken cancellationToken)
+    {
+        _logger.LogInformation("Domain Event: {DomainEvent}", notification.GetType().Name);
+
+        return Task.CompletedTask;
+    }
+}

src/CMSMicroservice.Application/ProductCategoryCQ/Queries/GetAllProductCategoryByFilter/GetAllPruductCategoryByFilterQuery.cs

@@ -0,0 +1,19 @@
+namespace CMSMicroservice.Application.ProductCategoryCQ.Queries.GetAllProductCategoryByFilter;
+public record GetAllProductCategoryByFilterQuery : IRequest<GetAllProductCategoryByFilterResponseDto>
+{
+    //موقعیت صفحه بندی 
+    public PaginationState? PaginationState { get; init; }
+    //مرتب سازی بر اساس 
+    public string? SortBy { get; init; }
+    //فیلتر 
+    public GetAllProductCategoryByFilterFilter? Filter { get; init; }
+
+}public class GetAllProductCategoryByFilterFilter
+{
+    //شناسه 
+    public long? Id { get; set; }
+    //شناسه محصول 
+    public long? ProductId { get; set; }
+    //شناسه دسته بندی 
+    public long? CategoryId { get; set; }
+}

src/CMSMicroservice.Application/ProductCategoryCQ/Queries/GetAllProductCategoryByFilter/GetAllPruductCategoryByFilterQueryHandler.cs

@@ -0,0 +1,32 @@
+namespace CMSMicroservice.Application.ProductCategoryCQ.Queries.GetAllProductCategoryByFilter;
+public class GetAllProductCategoryByFilterQueryHandler : IRequestHandler<GetAllProductCategoryByFilterQuery, GetAllProductCategoryByFilterResponseDto>
+{
+    private readonly IApplicationDbContext _context;
+
+    public GetAllProductCategoryByFilterQueryHandler(IApplicationDbContext context)
+    {
+        _context = context;
+    }
+
+    public async Task<GetAllProductCategoryByFilterResponseDto> Handle(GetAllProductCategoryByFilterQuery request, CancellationToken cancellationToken)
+    {
+        var query = _context.ProductCategories
+            .ApplyOrder(sortBy: request.SortBy)
+            .AsNoTracking()
+            .AsQueryable();
+        if (request.Filter is not null)
+        {
+            query = query
+                .Where(x => request.Filter.Id == null || x.Id == request.Filter.Id)
+                .Where(x => request.Filter.ProductId == null || x.ProductId==request.Filter.ProductId)
+                .Where(x => request.Filter.CategoryId == null || x.CategoryId==request.Filter.CategoryId)
+;
+        }
+        return new GetAllProductCategoryByFilterResponseDto
+        {
+            MetaData = await query.GetMetaData(request.PaginationState, cancellationToken),
+            Models = await query.PaginatedListAsync(paginationState: request.PaginationState)
+                .ProjectToType<GetAllProductCategoryByFilterResponseModel>().ToListAsync(cancellationToken)
+        };        
+    }
+}

src/CMSMicroservice.Application/ProductCategoryCQ/Queries/GetAllProductCategoryByFilter/GetAllPruductCategoryByFilterQueryValidator.cs

@@ -0,0 +1,14 @@
+namespace CMSMicroservice.Application.ProductCategoryCQ.Queries.GetAllProductCategoryByFilter;
+public class GetAllProductCategoryByFilterQueryValidator : AbstractValidator<GetAllProductCategoryByFilterQuery>
+{
+    public GetAllProductCategoryByFilterQueryValidator()
+    {
+    }
+    public Func<object, string, Task<IEnumerable<string>>> ValidateValue => async (model, propertyName) =>
+    {
+        var result = await ValidateAsync(ValidationContext<GetAllProductCategoryByFilterQuery>.CreateWithOptions((GetAllProductCategoryByFilterQuery)model, x => x.IncludeProperties(propertyName)));
+        if (result.IsValid)
+            return Array.Empty<string>();
+        return result.Errors.Select(e => e.ErrorMessage);
+    };
+}

src/CMSMicroservice.Application/ProductCategoryCQ/Queries/GetAllProductCategoryByFilter/GetAllPruductCategoryByFilterResponseDto.cs

@@ -0,0 +1,17 @@
+namespace CMSMicroservice.Application.ProductCategoryCQ.Queries.GetAllProductCategoryByFilter;
+public class GetAllProductCategoryByFilterResponseDto
+{
+    //متادیتا 
+    public MetaData MetaData { get; set; }
+    //مدل خروجی 
+    public List<GetAllProductCategoryByFilterResponseModel>? Models { get; set; }
+
+}public class GetAllProductCategoryByFilterResponseModel
+{
+    //شناسه 
+    public long Id { get; set; }
+    //شناسه محصول 
+    public long ProductId { get; set; }
+    //شناسه دسته بندی 
+    public long CategoryId { get; set; }
+}

src/CMSMicroservice.Application/ProductCategoryCQ/Queries/GetProductCategory/GetPruductCategoryQuery.cs

@@ -0,0 +1,7 @@
+namespace CMSMicroservice.Application.ProductCategoryCQ.Queries.GetProductCategory;
+public record GetProductCategoryQuery : IRequest<GetProductCategoryResponseDto>
+{
+    //شناسه 
+    public long Id { get; init; }
+
+}

src/CMSMicroservice.Application/ProductCategoryCQ/Queries/GetProductCategory/GetPruductCategoryQueryHandler.cs

@@ -0,0 +1,22 @@
+namespace CMSMicroservice.Application.ProductCategoryCQ.Queries.GetProductCategory;
+public class GetProductCategoryQueryHandler : IRequestHandler<GetProductCategoryQuery, GetProductCategoryResponseDto>
+{
+    private readonly IApplicationDbContext _context;
+
+    public GetProductCategoryQueryHandler(IApplicationDbContext context)
+    {
+        _context = context;
+    }
+
+    public async Task<GetProductCategoryResponseDto> Handle(GetProductCategoryQuery request,
+        CancellationToken cancellationToken)
+    {
+        var response = await _context.ProductCategories
+            .AsNoTracking()
+            .Where(x => x.Id == request.Id)
+            .ProjectToType<GetProductCategoryResponseDto>()
+            .FirstOrDefaultAsync(cancellationToken);
+
+        return response ?? throw new NotFoundException(nameof(ProductCategory), request.Id);
+    }
+}

src/CMSMicroservice.Application/ProductCategoryCQ/Queries/GetProductCategory/GetPruductCategoryQueryValidator.cs

@@ -0,0 +1,16 @@
+namespace CMSMicroservice.Application.ProductCategoryCQ.Queries.GetProductCategory;
+public class GetProductCategoryQueryValidator : AbstractValidator<GetProductCategoryQuery>
+{
+    public GetProductCategoryQueryValidator()
+    {
+        RuleFor(model => model.Id)
+            .NotNull();
+    }
+    public Func<object, string, Task<IEnumerable<string>>> ValidateValue => async (model, propertyName) =>
+    {
+        var result = await ValidateAsync(ValidationContext<GetProductCategoryQuery>.CreateWithOptions((GetProductCategoryQuery)model, x => x.IncludeProperties(propertyName)));
+        if (result.IsValid)
+            return Array.Empty<string>();
+        return result.Errors.Select(e => e.ErrorMessage);
+    };
+}

src/CMSMicroservice.Application/ProductCategoryCQ/Queries/GetProductCategory/GetPruductCategoryResponseDto.cs

@@ -0,0 +1,11 @@
+namespace CMSMicroservice.Application.ProductCategoryCQ.Queries.GetProductCategory;
+public class GetProductCategoryResponseDto
+{
+    //شناسه 
+    public long Id { get; set; }
+    //شناسه محصول 
+    public long ProductId { get; set; }
+    //شناسه دسته بندی 
+    public long CategoryId { get; set; }
+
+}