using AutoMapper;
using Complex.Application.Common;
using Complex.Application.Utility;
using Complex.Common.Dto;
using Complex.Domain.Commons;
using Complex.Domain.Entities;
using Microsoft.EntityFrameworkCore;
using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Complex.Application.Services.TransactionServices
{
    public interface ITransactionService
    {
        /*
        گزارش پرداختی های یک واحد
        گزارش وضعیت پرداخت واحدهای یک مجتمع
        ثبت یک تراکنش شارژ

         */
    }

    public class TransactionService : ITransactionService
    {
        private readonly IComplexDBContext _complexDBContext;
        private IMapper _mapper;

        public TransactionService(IComplexDBContext complexDBContext, IMapper mapper)
        {
            _complexDBContext = complexDBContext;
            _mapper = mapper;
        }

        public ResultDto<List<TransactionDto>> UnitsByTransStateList(Guid complexId, Guid? UnitId, CommonRequestDto commonRequestDto)
        {
            var trans = _complexDBContext.Transactions.Include(t => t.TransactionTitle).Include(t => t.CostCycle).Include(t => t.Person).Where(t => t.ComplexId == complexId)
                .Where(t => UnitId.HasValue ? t.UnitId == UnitId : true)
                .ToPagedByOrder(commonRequestDto, out int rowCount).ToList();
            var result = trans.Select(t => new TransactionDto
            {
                Amount = t.Amount,
                CostCycleId = t.CostCycleId,
                CostCycleTitle = t.CostCycle.Title,
                Description = t.Description,
                PersonId = t.PersonId,
                PersonName = t.Person.FirstName + " " + t.Person.LastName,
                TransactionDate = t.TransactionDate,
                TransactionPersianDate = t.TransactionPersianDate,
                TransactionTitle = t.TransactionTitle.Title,
                UnitCostDate = t.UnitCost.Date,
                UnitId = t.UnitId,
                UnitName = t.Unit.UnitName
            }).ToList();
            return new ResultDto<List<TransactionDto>>
            {
                Data = result,
                IsSuccess = true,
            };
        }
        public ResultDto PayCosts(List<long> UnitCostIds, Guid UnitId, long Amount,
            string UserPhone, string Description)
        {
            var costs = _complexDBContext.UnitCosts.Include(uc => uc.CostCycle)
                .Where(uc => UnitCostIds.Contains(uc.Id) && !uc.TransactionId.HasValue).ToList();
            var savedAmount = costs.Sum(c => c.CostCycle.Amount);
            if (savedAmount != Amount)
                return new ResultDto
                {
                    IsSuccess = false,
                    Message = "مبلغ صحیح نمی باشد"
                };

            foreach (var c in costs)
            {
                var newTrans = new Transaction
                {
                    PersonId = UserPhone,
                    TransactionDate = DateTime.Now,
                    Amount = c.CostCycle.Amount,
                    CostCycleId = c.CostCycleId,
                    UnitId = UnitId,
                    TransactionTitleId = c.CostCycle.IncomeCostTitleId,
                    ComplexId = c.CostCycle.ComplexId,
                    Description = Description,
                    TransactionPersianDate = PersianDate.GetDate(DateTime.Now),
                    UnitCostId = c.Id
                };
                c.Transaction = newTrans;
                //_complexDBContext.Transactions.Add(newTrans);
            }
            _complexDBContext.SaveChanges();
            return new ResultDto
            {
                IsSuccess = true,
                Message = "ثبت با موفقیت انجام شد"
            };
        }
    }

    public class TransactionDto
    {
        public string TransactionTitle { set; get; }
        public string TransactionPersianDate { set; get; }
        public DateTime TransactionDate { set; get; }
        public long Amount { set; get; } = 0;
        public string? Description { set; get; }
        public Guid? CostCycleId { set; get; }
        public string CostCycleTitle { set; get; }
        public Guid? UnitId { set; get; }
        public string UnitName { set; get; }
        //public string? TrackingCode { set; get; }
        //public long Remaining { set; get; } = 0;

        public DateOnly UnitCostDate { set; get; }
        public string PersonId { set; get; }
        public string PersonName { set; get; }
    }


    /*
    public class UnitTrancactionStateDto
    {
        public Guid UnitId { get; set; }
        public string UnitTitle { get; set; }
        /// <summary>
        /// مقدار شارژ پرداخت نشده
        /// </summary>
        public int ChargeNoPayAmount { get; set; }
        /// <summary>
        /// تعداد شارژ پرداخت نشده
        /// </summary>
        public int ChargeNoPayCount { get; set; }
        /// <summary>
        /// مقدار پرداخت نشده غیر شارژ
        /// </summary>
        public int OtherNoPayAmount { get; set; }
        /// <summary>
        /// میزان پرداخت کرده
        /// </summary>
        public long PayAmountInYear { set; get; }
        /// <summary>
        /// تعداد شارژ پرداخت شده
        /// </summary>
        public int ChargePayCountInYear { set; get; }
    }
    public class UnitsByTransState
    {
        public Guid UnitId { set; get; }
        public string UnitName { set; get; }
        public string UnitUserMobile { set; get; }
        public string UnitUserFullName { set; get; }
        public int ChargeReminigCount { set; get; }
    }
    */
}