using Fake.Application;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Oms.Application.Dtos.Orders;
using Oms.Application.Shared;

namespace Oms.Application.Services.Orders;

public partial class OrderService
{
    private OrderFileManager OrderFileManager =>
        LazyServiceProvider.GetRequiredService<OrderFileManager>();

    /// <summary>
    /// 查询订单附件（按类型分组）。客户登录仅返回系统面单。
    /// </summary>
    [HttpGet("/order/files")]
    public async Task<OrderFileGroupedOutput> GetOrderFilesAsync([FromQuery] int orderId)
    {
        await GetOrderOrThrowAsync(orderId);
        var customerView = OmsSessionHelper.IsCustomerLogin(CurrentUser);
        return await OrderFileManager.GetGroupedAsync(orderId, customerView);
    }

    /// <summary>
    /// 上传订单附件。客户账号禁止上传。
    /// </summary>
    [HttpPost("/order/files/upload")]
    [Consumes("multipart/form-data")]
    public async Task<List<OrderFileItemOutput>> UploadOrderFilesAsync(
        [FromForm] int orderId,
        [FromForm] string fileType,
        [FromForm] List<IFormFile> files)
    {
        await GetOrderOrThrowAsync(orderId);
        var collection = new FormFileCollection();
        foreach (var file in files ?? [])
        {
            collection.Add(file);
        }

        return await OrderFileManager.UploadAsync(
            orderId,
            fileType,
            collection,
            CurrentUser.GetId<int>(),
            OmsSessionHelper.IsCustomerLogin(CurrentUser));
    }

    /// <summary>
    /// 删除订单附件。客户账号禁止删除。
    /// </summary>
    [HttpPost("/order/files/delete")]
    public async Task DeleteOrderFileAsync([FromBody] OrderFileDeleteInput input)
    {
        if (input == null || input.Id <= 0)
        {
            throw new BusinessException("附件 Id 无效");
        }

        var entity = await LazyServiceProvider
            .GetRequiredService<Domain.OrdersAggregate.Repositories.IOrderFileRepository>()
            .FirstOrDefaultAsync(x => x.Id == input.Id)
            ?? throw new BusinessException("附件不存在");

        await GetOrderOrThrowAsync(entity.OrderId);
        await OrderFileManager.DeleteAsync(
            input.Id,
            OmsSessionHelper.IsCustomerLogin(CurrentUser));
    }
}