using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using _0_Framework.Application;
using _0_Framework.Application.Enums;
using _0_Framework.InfraStructure;
using Company.Domain.ClassificationSchemeAgg;
using CompanyManagment.App.Contracts.ClassificationScheme;
using Microsoft.EntityFrameworkCore;

namespace CompanyManagment.EFCore.Repository;

public class ClassificationGroupSalariesRepository : RepositoryBase<long, ClassificationGroupSalary>, IClassificationGroupSalariesRepository
{
    private readonly CompanyContext _context;
    public ClassificationGroupSalariesRepository(CompanyContext context) : base(context)
    {
        _context = context;
    }


    public async Task CreateSalaries(List<ClassificationGroupSalary> createClassificationGroupSalary)
    {
        if (createClassificationGroupSalary.Count > 0)
        {
            await _context.ClassificationGroupSalaries.AddRangeAsync(createClassificationGroupSalary);
            await _context.SaveChangesAsync();
        }
    }

    /// <summary>
    /// دریافت دستمزدها و ضریب ریالی برای مودال ویرایش
    /// </summary>
    /// <param name="schemeId"></param>
    /// <param name="startDate"></param>
    /// <param name="endDate"></param>
    /// <returns></returns>
    public async Task<SalaryAndRialCoefficientModel> GetEditSalariesData(long schemeId, string startDate, string endDate)
    {
        var salaryAndRialCoefficientModel = new SalaryAndRialCoefficientModel();
        
        try
        {
            var scheme = _context.ClassificationSchemes.FirstOrDefaultAsync(x => x.id == schemeId).GetAwaiter().GetResult();
            var startDatGr = startDate.ToGeorgian();


            var rialCoEfficient = await _context.ClassificationRialCoefficients
                .FirstOrDefaultAsync(x => x.ClassificationSchemeId == schemeId && x.StartDate == startDatGr);
            salaryAndRialCoefficientModel.SchemeId = schemeId;
            salaryAndRialCoefficientModel.StartDateFa = startDate;
            salaryAndRialCoefficientModel.EndDateFa = endDate;
            salaryAndRialCoefficientModel.TypeOfCoefficient = scheme.TypeOfCoefficient;
            if (rialCoEfficient == null)
            {
                salaryAndRialCoefficientModel.RialCoefficient = 0;
                salaryAndRialCoefficientModel.CoefficientId = 0;
            }
            else
            {
                salaryAndRialCoefficientModel.RialCoefficient = scheme.TypeOfCoefficient == TypeOfCoefficient.RialCoefficient ? rialCoEfficient.RialCoefficient : 0;
                salaryAndRialCoefficientModel.CoefficientId = scheme.TypeOfCoefficient == TypeOfCoefficient.RialCoefficient ? rialCoEfficient.id : 0;
            }
           
            salaryAndRialCoefficientModel.SalariesAndCoefficientList = _context.ClassificationGroupSalaries.Where(x => x.SchemeId == schemeId && x.StartDate == startDatGr).Select(x => new EditClassificationGroupSalaryAndRialCoefficient
            {
                Id = x.id,
                ClassificationGroupId = x.ClassificationGroupId,
                GroupNo = x.GroupNo,
                GroupSalaryStr = x.GroupSalary.ToMoney(),
                GroupSalary = x.GroupSalary
                
            })
                .ToList();
        }
        catch (System.Exception)
        {
            return new SalaryAndRialCoefficientModel();
        
        }



        return salaryAndRialCoefficientModel;
    }
    public async Task<SalaryAndRialCoefficientTab> GetSalariesTabData(long schemeId)
    {
        var scheme = await _context.ClassificationSchemes.AsSplitQuery().Include(xc=>xc.ClassificationRialCoefficients)
            .Include(xg => xg.ClassificationGroups)
            .ThenInclude(xs => xs.ClassificationGroupSalaries)
            .FirstOrDefaultAsync(x => x.id == schemeId);

        if (scheme == null)
            return null;

        // جمع‌آوری همه‌ی حقوق‌ها از تمام گروه‌ها
        var allSalaries = scheme.ClassificationGroups
            .SelectMany(g => g.ClassificationGroupSalaries)
            .ToList();

        // اگر هیچ حقوقی وجود ندارد
        if (!allSalaries.Any())
        {
            return new SalaryAndRialCoefficientTab
            {
                SchemeId = scheme.id,
                HasAnySalaries = false,
                SalaryAndRialCoefficientTabDataList = new List<SalaryAndRialCoefficientTabDataList>()
            };
        }

        //  گروه‌بندی بر اساس StartDate و EndDate برای حذف موارد تکراری
        var distinctPeriods = allSalaries
            .GroupBy(s => new { s.StartDate, s.EndDate })
            .Select(g => g.First()) // فقط یکی از هر بازه تاریخ
            .OrderByDescending(x => x.StartDate)
            .ToList();

        //تبدیل به مدل خروجی
        var dataList = distinctPeriods
            .Select(s => new SalaryAndRialCoefficientTabDataList
            {
                RialCoefficientStr = $"{scheme.ClassificationRialCoefficients.FirstOrDefault(x=>x.StartDate.Date == s.StartDate.Date && x.EndDate.Date == s.EndDate.Date)?.RialCoefficient}",
                StartDateFa = s.StartDate.ToFarsi(),
                EndDateFa = s.EndDate.ToFarsi(),
                Year = s.Year
            })
            .ToList();

        var result = new SalaryAndRialCoefficientTab
        {
            SchemeId = scheme.id,
            HasAnySalaries = allSalaries.Any(),
            SalaryAndRialCoefficientTabDataList = dataList
        };

        return result;


    }

    #region ForApi

    public async Task<List<SalaryAndRialCoefficientTabDataList>> GetSalaryList(long schemeId)
    {
        var scheme = await _context.ClassificationSchemes.AsSplitQuery().Include(xc => xc.ClassificationRialCoefficients)
            .Include(xg => xg.ClassificationGroups)
            .ThenInclude(xs => xs.ClassificationGroupSalaries)
            .FirstOrDefaultAsync(x => x.id == schemeId);

        if (scheme == null)
            return null;

        // جمع‌آوری همه‌ی حقوق‌ها از تمام گروه‌ها
        var allSalaries = scheme.ClassificationGroups
            .SelectMany(g => g.ClassificationGroupSalaries)
            .ToList();

        // اگر هیچ حقوقی وجود ندارد
        if (!allSalaries.Any())
        {
            return new List<SalaryAndRialCoefficientTabDataList>();
        }

        //  گروه‌بندی بر اساس StartDate و EndDate برای حذف موارد تکراری
        var distinctPeriods = allSalaries
            .GroupBy(s => new { s.StartDate, s.EndDate })
            .Select(g => g.First()) // فقط یکی از هر بازه تاریخ
            .OrderByDescending(x => x.StartDate)
            .ToList();

        //تبدیل به مدل خروجی
        var dataList = distinctPeriods
            .Select(s => new SalaryAndRialCoefficientTabDataList
            {
                RialCoefficientStr = $"{scheme.ClassificationRialCoefficients.FirstOrDefault(x => x.StartDate.Date == s.StartDate.Date && x.EndDate.Date == s.EndDate.Date)?.RialCoefficient}",
                StartDateFa = s.StartDate.ToFarsi(),
                EndDateFa = s.EndDate.ToFarsi(),
                Year = s.Year
            })
            .ToList();

        return dataList;
    }

    #endregion
}