using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using AyCode.Database.DataLayers;
using AyCode.Database.DataLayers.Users;
using AyCode.Entities.Users;
using Microsoft.EntityFrameworkCore;
using TIAM.Database.DbContexts;
using TIAM.Entities.Users;

namespace TIAM.Database.DataLayers.Users
{
    public class UserDal : UserDalBase<UserDbContext, User, UserTokenBase>
    {
        
        public UserDal() : base()
        {
        }

        public UserDal(UserDbContext _object)
        {
        }

        public Task<List<User>> GetUsersAsync()
        {
            return Context.Users.ToListAsync();
        }

        //public Task<User?> GetUserByEmailAsync(string email)
        //{
        //    Console.WriteLine($"Getting user from db {email}");
        //    //var emailLower = email.ToLower();

        //    return Context.GetUserByEmail(email);
        //    //return Context.Users.SingleOrDefaultAsync(x=>x.Email.ToLower() == emailLower);
        //}

        public Task<User?> GetUserByPhoneNumberAsync(string phoneNumber)
        {
            Console.WriteLine($"Getting user from db {phoneNumber}");
            var phoneNumberLower = phoneNumber.ToLower();
            return Context.Users.SingleOrDefaultAsync(x=>x.PhoneNumber.ToLower() == phoneNumberLower);
        }

        public Task<User?> GetUserByEmailOrPhoneNumberAsync(string emailOrPhoneNumber)
        {
            Console.WriteLine($"Getting user from db {emailOrPhoneNumber}");
            var emailOrPhoneNumberLower = emailOrPhoneNumber.ToLower();
            return Context.Users.SingleOrDefaultAsync(x=>x.EmailAddress.ToLower() == emailOrPhoneNumberLower || x.PhoneNumber.ToLower() == emailOrPhoneNumberLower);
        }

        //get user by Id
        public virtual Task<User?> GetUserByIdAsync(Guid id)
        {
            Console.WriteLine($"Getting user from db {id}");
            return Context.Users.SingleOrDefaultAsync(x=>x.Id == id);
        }

        public Task<bool> CreateUserAsync(User user)
        {
            user.Created = DateTime.UtcNow;
            user.Modified = DateTime.UtcNow;
            Context.Users.Add(user);
            Console.WriteLine($"Saving user to db {user.Id}, {user.EmailAddress}, {user.PhoneNumber}, {user.Password}");
            return Context.SaveChangesAsync().ContinueWith(x=>x.Result > 0);
        }

        public Task<bool> UpdateUserAsyncOld(User user)
        {
            user.Modified = DateTime.UtcNow;
            Context.Users.Update(user);
            return Context.SaveChangesAsync().ContinueWith(x=>x.Result > 0);
        }

        public Task<bool> UpdateUserAsync(User user)
        {
            var existingUser = Context.Users.FirstOrDefault(u => u.EmailAddress == user.EmailAddress);
            if (existingUser != null)
            {
                //user.Modified = DateTime.UtcNow; //ezt nem kell megadni, a háttérben ezt magától megcsinálja a DbContextBase - J.
                existingUser = user;
                Context.Users.Update(existingUser);
                return Context.SaveChangesAsync().ContinueWith(x => x.Result > 0);
            }
            else
            {
                throw new Exception("User not found");
            }
        }
    }
}