using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Configuration;
using CarParkValidationAPI.Entities;
using CarParkValidationAPI.Models;
using Microsoft.Extensions.Options;
//using Microsoft.Data.SqlClient;
using System;
using System.Collections.Generic;
using System.Threading.Tasks;
using System.Data;
using System.Data.Common;
using System.Linq;
using Microsoft.OpenApi.Reader;

namespace CarParkValidationAPI.Datas;

public class DataContext : DbContext
{
  //  public DbSet<User> Users { get; set; }
    public DbSet<AdminUser> AdminUsers { get; set; }
    public DbSet<ValidationPoint> Validations { get; set; }
    public DbSet<ConcessionValidation> ConcessionValidations { get; set; }
    public DbSet<ConcessionType> ConcessionTypes { get; set; }
    private readonly IConfiguration Configuration;
    private IOptions<AppSettings> _appSettings;

    public DataContext(IConfiguration configuration, IOptions<AppSettings> appSettings, DbContextOptions<DataContext> options): base(options)
    {
        Configuration = configuration;
        _appSettings = appSettings;
    }

    protected override void OnModelCreating(ModelBuilder modelBuilder)
    {
        modelBuilder.Entity<ValidationPoint>().ToTable("ValidationPoint");
        modelBuilder.Entity<ConcessionValidation>().ToTable("ConcessionValidation");
        modelBuilder.Entity<ConcessionType>().ToTable("ConcessionType");
        modelBuilder.Entity<AdminUser>().ToTable("AdminUser");
        // Forces EF Core to map all DateTime properties to 'timestamp without time zone'
        foreach (var entityType in modelBuilder.Model.GetEntityTypes())
        {
            var properties = entityType.GetProperties()
                .Where(p => p.ClrType == typeof(DateTime) || p.ClrType == typeof(DateTime?));

            foreach (var property in properties)
            {
                property.SetColumnType("timestamp without time zone");
            }
        }
    }

   // protected override void OnConfiguring(DbContextOptionsBuilder options)
    //{
        // in memory database used for simplicity, change to a real db for production applications
        // options.UseInMemoryDatabase("TestDb");
        // options.UseSqlServer(_appSettings.Value.SQLConnectionString);
       // options.UseSqlServer(Configuration.GetValue<string>("AppSettings:SQLConnectionString"));
    //}

    private ConcessionValidationExtDto PopulateItem(IDataReader reader)
    {
        ConcessionValidationExtDto item = new ConcessionValidationExtDto();
        object myobj;
        myobj = reader["ValidationID"];
        if (myobj != System.DBNull.Value)
            item.Id = (int)myobj;

        myobj = reader["ValidateDate"];
        if (myobj != System.DBNull.Value)
            item.ValidateDate = (DateTime)myobj;

        myobj = reader["ConcessionCard"];
        if (myobj != System.DBNull.Value)
            item.ConcessionCard = (string)myobj;

        myobj = reader["ConcessionHolder"];
        if (myobj != System.DBNull.Value)
            item.ConcessionHolder = (string)myobj;

        myobj = reader["ConcessionExpiry"];
        if (myobj != System.DBNull.Value)
            item.ConcessionExpiry = (bool)myobj;
        /*
        myobj = reader["ConcessionTypeID"];
        if (myobj != System.DBNull.Value)
            item.ConcessionTypeId = (int)myobj;
        */
        myobj = reader["StafflinkNo"];
        if (myobj != System.DBNull.Value)
            item.StafflinkNo = (string)myobj;

        myobj = reader["ConcessionType"];
        if (myobj != System.DBNull.Value)
            item.ConcessionType = (string)myobj;
        myobj = reader["ValidationPoint"];
        if (myobj != System.DBNull.Value)
            item.ValidationPoint = (string)myobj;

        myobj = reader["StaffFirstName"];
        if (myobj != System.DBNull.Value)
            item.StaffFirstName = (string)myobj;

        myobj = reader["StaffLastName"];
        if (myobj != System.DBNull.Value)
            item.StaffLastName = (string)myobj;

        myobj = reader["StaffEmail"];
        if (myobj != System.DBNull.Value)
            item.StaffEmail = (string)myobj;
        /*
        myobj = reader["ValidationPointID"];
        if (myobj != System.DBNull.Value)
            item.ValidationPointId = (int)myobj;
        */
        myobj = reader["Active"];
        if (myobj != System.DBNull.Value)
            item.Active = (bool)myobj;

        return item;
    }

    public async Task<List<ConcessionValidationExtDto>> SelectConcessionValidationByStaffId(bool activeOnly,
        string stafflinkNo, DateTime fromDate, DateTime toDate)
    {
        using (var command = this.Database.GetDbConnection().CreateCommand())
        {
            var pfromDate = command.CreateParameter();

            pfromDate.ParameterName = "FromDate";
            pfromDate.Value = fromDate.Date;

            var pToDate = command.CreateParameter();

            pToDate.ParameterName = "toDate";
            pToDate.Value = toDate.Date;

            var pStaffLink = command.CreateParameter();

            pStaffLink.ParameterName = "StaffLinkNo";
            pStaffLink.Value = stafflinkNo;



            ConcessionValidationExtDto item;
            List<ConcessionValidationExtDto> result = new List<ConcessionValidationExtDto>();

            command.CommandType = CommandType.StoredProcedure;
            command.CommandText = ("capv_ConValidation_Sel");
            command.Parameters.Add(pfromDate);
            command.Parameters.Add(pToDate);
            command.Parameters.Add(pStaffLink);
            this.Database.OpenConnection();
            using (DbDataReader reader = await command.ExecuteReaderAsync())
            {
                while (await reader.ReadAsync())
                {
                    item = PopulateItem(reader);
                    result.Add(item);
                }
            }


            return result;
        }
    }

    public async Task<List<int>> SelectCheckConcessionValidationAsync(DateTime fromDate, string concessionCard,
        string staffLinkNo)
    {
        using (var command = this.Database.GetDbConnection().CreateCommand())
        {
            var pfromDate = command.CreateParameter();

            pfromDate.ParameterName = "FromDate";
            pfromDate.Value = fromDate.Date;


            var pStaffLink = command.CreateParameter();

            pStaffLink.ParameterName = "StaffLinkNo";
            pStaffLink.Value = staffLinkNo;


            var pConcessionCard = command.CreateParameter();
            pConcessionCard.ParameterName = "ConcessionCard";
            pConcessionCard.Value = concessionCard;


            ConcessionValidationExtDto item;
            List<int> result = new List<int>();
            object myobj;
            int id;

            command.CommandType = CommandType.StoredProcedure;
            command.CommandText = ("capv_CheckConValidation_Sel");
            command.Parameters.Add(pfromDate);
            command.Parameters.Add(pStaffLink);
            command.Parameters.Add(pConcessionCard);
            this.Database.OpenConnection();
            using (DbDataReader reader = await command.ExecuteReaderAsync())
            {
                while (await reader.ReadAsync())
                {
                    myobj = reader["ValidationID"];
                    if (myobj != System.DBNull.Value)
                    {
                        id = (int)myobj;
                        result.Add(id);
                    }
                }
            }

            return result;
        }
    }


    public async Task<List<ConcessionValidationExtDto>> SelectConcessionValidationByDate(bool activeOnly,
        DateTime fromDate, DateTime toDate)
    {
        using (var command = this.Database.GetDbConnection().CreateCommand())
        {
            var pfromDate = command.CreateParameter();

            pfromDate.ParameterName = "FromDate";
            pfromDate.Value = fromDate.Date;

            var pToDate = command.CreateParameter();

            pToDate.ParameterName = "toDate";
            pToDate.Value = toDate.Date;

            ConcessionValidationExtDto item;
            List<ConcessionValidationExtDto> result = new List<ConcessionValidationExtDto>();

            command.CommandType = CommandType.StoredProcedure;
            command.CommandText = ("capv_ConValidationDate_Sel");
            command.Parameters.Add(pfromDate);
            command.Parameters.Add(pToDate);

            this.Database.OpenConnection();
            using (DbDataReader reader = await command.ExecuteReaderAsync())
            {
                while (await reader.ReadAsync())
                {
                    item = PopulateItem(reader);
                    result.Add(item);
                }
            }

            result.Sort((x, y) => x.ValidateDate.Date.CompareTo(y.ValidateDate.Date));
            return result;
        }
    }
}