littleshop/LittleShop/Services/IProductService.cs
SysAdmin 034b8facee Implement product multi-buys and variants system
Major restructuring of product variations:
- Renamed ProductVariation to ProductMultiBuy for quantity-based pricing (e.g., "3 for £25")
- Added new ProductVariant model for string-based options (colors, flavors)
- Complete separation of multi-buy pricing from variant selection

Features implemented:
- Multi-buy deals with automatic price-per-unit calculation
- Product variants for colors/flavors/sizes with stock tracking
- TeleBot checkout supports both multi-buys and variant selection
- Shopping cart correctly calculates multi-buy bundle prices
- Order system tracks selected variants and multi-buy choices
- Real-time bot activity monitoring with SignalR
- Public bot directory page with QR codes for Telegram launch
- Admin dashboard shows multi-buy and variant metrics

Technical changes:
- Updated all DTOs, services, and controllers
- Fixed cart total calculation for multi-buy bundles
- Comprehensive test coverage for new functionality
- All existing tests passing with new features

Database changes:
- Migrated ProductVariations to ProductMultiBuys
- Added ProductVariants table
- Updated OrderItems to track variants

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-09-21 00:30:12 +01:00

31 lines
1.6 KiB
C#

using LittleShop.DTOs;
namespace LittleShop.Services;
public interface IProductService
{
Task<IEnumerable<ProductDto>> GetAllProductsAsync();
Task<IEnumerable<ProductDto>> GetProductsByCategoryAsync(Guid categoryId);
Task<ProductDto?> GetProductByIdAsync(Guid id);
Task<ProductDto> CreateProductAsync(CreateProductDto createProductDto);
Task<bool> UpdateProductAsync(Guid id, UpdateProductDto updateProductDto);
Task<bool> DeleteProductAsync(Guid id);
Task<bool> AddProductPhotoAsync(Guid productId, IFormFile file, string? altText = null);
Task<ProductPhotoDto?> AddProductPhotoAsync(CreateProductPhotoDto photoDto);
Task<bool> RemoveProductPhotoAsync(Guid productId, Guid photoId);
Task<IEnumerable<ProductDto>> SearchProductsAsync(string searchTerm);
// Product Multi-Buys
Task<ProductMultiBuyDto> CreateProductMultiBuyAsync(CreateProductMultiBuyDto createMultiBuyDto);
Task<bool> UpdateProductMultiBuyAsync(Guid id, UpdateProductMultiBuyDto updateMultiBuyDto);
Task<bool> DeleteProductMultiBuyAsync(Guid id);
Task<IEnumerable<ProductMultiBuyDto>> GetProductMultiBuysAsync(Guid productId);
Task<ProductMultiBuyDto?> GetProductMultiBuyByIdAsync(Guid id);
// Product Variants
Task<ProductVariantDto> CreateProductVariantAsync(CreateProductVariantDto createVariantDto);
Task<bool> UpdateProductVariantAsync(Guid id, UpdateProductVariantDto updateVariantDto);
Task<bool> DeleteProductVariantAsync(Guid id);
Task<IEnumerable<ProductVariantDto>> GetProductVariantsAsync(Guid productId);
Task<ProductVariantDto?> GetProductVariantByIdAsync(Guid id);
}