using DocumentFormat.OpenXml.Spreadsheet;
using FamilyTreeAPI.Entities;
using FamilyTreeAPI.Interface;
using FamilyTreeAPI.Models;
using SpreadsheetLight;

namespace FamilyTreeAPI.Repository;

public class ImportPersonRepository
{
    enum enumIdx
    {
        Id = 1,
        FirstName,
        LastName,
        Email,
        Phone,
        Image,
        Sex,
        Address,
        Alive,
        Dob,
        FatherId,
        MotherId,
        
    }
    private FamilyTreeDBContext _context;
    private IConfiguration _config;
    private IHttpContextAccessor _httpContext;
    private IRelationShipd _relationship;
    public ImportPersonRepository(IConfiguration config, FamilyTreeDBContext context,
        IRelationShipd relationship,
        IHttpContextAccessor httpContext)
    {
        _context = context;
        _relationship = relationship;
        _config = config;
        _httpContext = httpContext;
    }

    public async Task<List<CodeDto<string>>> ImportPerson(FileStream fileStream, string sheetName)
    {
        int id;
        List<CodeDto<string>> output = new();
        Dictionary<int,MappingFatherMother> updateperson = new();
        CodeDto<string> colums;
        List<int> ids = new();
        Person person;
        Person? uperson;
        MappingFatherMother mitem,faitem,moitem;
        int fid, mid;
        MemoryStream msFirstPass = new MemoryStream();
        SLDocument sl = new SLDocument(fileStream, sheetName);
        // There is no way that I can see to get the Rows
        SLWorksheetStatistics stats = sl.GetWorksheetStatistics();
        for (int row = 1; row <= stats.NumberOfRows; row++)
        {
            person = new Person();
            mitem = new();
            id = sl.GetCellValueAsInt32(row, (int) enumIdx.Id);
            mitem.IId = id;
            person.FirstName  = sl.GetCellValueAsString(row, (int) enumIdx.FirstName);
            person.LastName  = sl.GetCellValueAsString(row, (int) enumIdx.LastName);
            person.Email    = sl.GetCellValueAsString(row, (int) enumIdx.Email);
            person.Phone    = sl.GetCellValueAsString(row, (int) enumIdx.Phone);
            person.Image    = sl.GetCellValueAsString(row, (int) enumIdx.Image);
            person.Alive    = sl.GetCellValueAsBoolean(row, (int) enumIdx.Alive);
            person.dob     = sl.GetCellValueAsDateTime(row, (int) enumIdx.Dob);
            mitem.IFatherId = sl.GetCellValueAsInt32(row, (int) enumIdx.FatherId);
            mitem.IMotherId = sl.GetCellValueAsInt32(row, (int) enumIdx.MotherId);
            _context.Persons.Add(person);
            _context.SaveChanges();
            mitem.TId = person.Id;
            ids.Add(id);
            updateperson.Add(mitem.IId, mitem);
            colums = new();
            colums.Code = $"{mitem.IId} {mitem.IFatherId} {mitem.IMotherId}";
            colums.Description = $"{mitem.TId} {mitem.TFatherId} {mitem.TMotherId}";
            output.Add(colums);
            
        }

        for (int i = 0; i < ids.Count; i++)
        {
            id = ids[i];
            mitem = updateperson[id];
            fid = mitem.IFatherId;
            if (updateperson.ContainsKey(fid))
            {
                faitem = updateperson[fid];
                mitem.TFatherId = faitem.TId;
            }
            mid = mitem.IMotherId;
            if (updateperson.ContainsKey(mid))
            {
                moitem = updateperson[mid];
                mitem.TMotherId = moitem.TId;
            }

            uperson = await _context.Persons.FindAsync(mitem.TId);
            if (uperson == null) continue;
            uperson.FatherId = mitem.TFatherId;
            uperson.MotherId = mitem.TMotherId;
            await _context.SaveChangesAsync();

        }
        return output;
    }
    
}