using PyroFetes.DTO.Product.Request;
using PyroFetes.DTO.Product.Response;
using FastEndpoints;
using Microsoft.EntityFrameworkCore;
using PyroFetes.DTO.Product.Request;
using PyroFetes.DTO.Product.Response;
using PyroFetes.Models;

namespace PyroFetes.Endpoints.Product;

public class GetAllProductsEndpoint(PyroFetesDbContext db)
    : EndpointWithoutRequest<List<GetProductDto>>
{
    public override void Configure()
    {
        Get("/api/products");
        AllowAnonymous();
    }

    public override async Task HandleAsync(CancellationToken ct)
    {
        // Inclure toutes les relations nécessaires : Prices + WarehouseProducts + Warehouse
        var products = await db.Products
            .Include(p => p.Prices)
            .Include(p => p.WarehouseProducts)
            .ThenInclude(wp => wp.Warehouse)
            .ToListAsync(ct);

        var responseDto = products.Select(p => new GetProductDto
        {
            Id = p.Id,
            Reference = p.References,
            Name = p.Name,
            Duration = p.Duration,
            Caliber = p.Caliber,
            ApprovalNumber = p.ApprovalNumber,
            Weight = p.Weight,
            Nec = p.Nec,
            SellingPrice = p.SellingPrice,
            Image = p.Image,
            Link = p.Link,
            ClassificationId = p.ClassificationId,
            ProductCategoryId = p.ProductCategoryId,

            // Liste des fournisseurs liés via Price
            Suppliers = p.Prices.Select(pr => new ProductSupplierPriceDto
            {
                SupplierId = pr.SupplierId,
                SellingPrice = pr.SellingPrice
            }).ToList(),

            // Liste des entrepôts via WarehouseProduct
            Warehouses = p.WarehouseProducts.Select(wp => new GetProductWarehouseDto
            {
                WarehouseId = wp.WarehouseId,
                WarehouseName = wp.Warehouse?.Name ?? string.Empty,
                Quantity = wp.Quantity
            }).ToList()
        }).ToList();

        await Send.OkAsync(responseDto, ct);
    }
}