using Dapper;
using SIGCM.Domain.Interfaces;
using SIGCM.Infrastructure.Data;

namespace SIGCM.Infrastructure.Repositories;

public class ReportRepository : IReportRepository
{
  private readonly IDbConnectionFactory _db;

  public ReportRepository(IDbConnectionFactory db)
  {
    _db = db;
  }

  public async Task<IEnumerable<SettlementItem>> GetInterCompanySettlementAsync(DateTime from, DateTime to)
  {
    using var conn = _db.CreateConnection();
    var sql = @"
            SELECT 
                b.Name as BillingCompany,
                s.Name as ServiceCompany,
                COUNT(*) as TransactionCount,
                SUM(oi.SubTotal) as TotalAmount
            FROM OrderItems oi
            JOIN Orders o ON oi.OrderId = o.Id
            JOIN Companies b ON oi.BillingCompanyId = b.Id
            JOIN Companies s ON oi.ServiceCompanyId = s.Id
            WHERE oi.BillingCompanyId <> oi.ServiceCompanyId
              AND o.PaymentStatus = 'Paid' -- Solo liquidamos dinero efectivamente cobrado
              AND o.CreatedAt >= @From AND o.CreatedAt <= @To
            GROUP BY b.Name, s.Name
            ORDER BY b.Name, s.Name";

    return await conn.QueryAsync<SettlementItem>(sql, new { From = from, To = to });
  }
}