using MediatR;
using TakeoutSaaS.Application.App.Payments.Dto;
using TakeoutSaaS.Application.App.Payments.Queries;
using TakeoutSaaS.Domain.Payments.Repositories;
using TakeoutSaaS.Shared.Abstractions.Tenancy;

namespace TakeoutSaaS.Application.App.Payments.Handlers;

/// <summary>
/// 支付记录列表查询处理器。
/// </summary>
public sealed class SearchPaymentsQueryHandler(
    IPaymentRepository paymentRepository,
    ITenantProvider tenantProvider)
    : IRequestHandler<SearchPaymentsQuery, IReadOnlyList<PaymentDto>>
{
    private readonly IPaymentRepository _paymentRepository = paymentRepository;
    private readonly ITenantProvider _tenantProvider = tenantProvider;

    /// <inheritdoc />
    public async Task<IReadOnlyList<PaymentDto>> Handle(SearchPaymentsQuery request, CancellationToken cancellationToken)
    {
        var tenantId = _tenantProvider.GetCurrentTenantId();
        var payments = await _paymentRepository.SearchAsync(tenantId, request.Status, cancellationToken);

        if (request.OrderId.HasValue)
        {
            payments = payments.Where(x => x.OrderId == request.OrderId.Value).ToList();
        }

        return payments.Select(payment => new PaymentDto
        {
            Id = payment.Id,
            TenantId = payment.TenantId,
            OrderId = payment.OrderId,
            Method = payment.Method,
            Status = payment.Status,
            Amount = payment.Amount,
            TradeNo = payment.TradeNo,
            ChannelTransactionId = payment.ChannelTransactionId,
            PaidAt = payment.PaidAt,
            Remark = payment.Remark,
            Payload = payment.Payload
        }).ToList();
    }
}