using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using MQTTnet;
using MQTTnet.Client;
using MQTTnet.Server;
using MyCore.Models;
using MyCore.Models.MyControlPanel.Database;
using MyCore.Services;

namespace MyCore.Controllers
{
    [Authorize(Roles = "Admin")]
    [Route("api/user")]
    [ApiController]
    public class UserController : ControllerBase
    {
        private UserDatabaseService _userService;
        private TokenService _tokenService;

        public UserController(UserDatabaseService userService, TokenService tokenService)
        {
            _userService = userService;
            _tokenService = tokenService;
        }

        // GET api/user
        /// <summary>
        /// Get a list of user 
        /// </summary>
        [HttpGet]
        public ActionResult<IEnumerable<UserInfo>> Get()
        {
            //return new string[] { "value1", "value2" };
            //return _userService.GetUsers();
            return null;
        }

        
        // GET api/user/5
        /// <summary>
        /// Get a specific user 
        /// </summary>
        /// <param name="id">id user</param>  
        [HttpGet("{id}")]
        public ActionResult<UserInfo> Get(string id)
        {
            if (id != null)
            {
                List<UserInfo> users = _userService.GetAll();

                if (!users.Select(u => u.Id).Contains(id))
                {
                    return Conflict("This user was not found");
                }

                return _userService.GetById(id);
            }
            return StatusCode(500);
        }

        // POST: User/Create
        /// <summary>
        /// 
        /// </summary>
        [AllowAnonymous]
        [HttpPost]
        public ActionResult<UserInfo> CreateUser([FromBody] UserInfo newUser)
        {
            if (newUser != null)
            {
                newUser.Token = _tokenService.GenerateToken(newUser.Email).ToString();
                newUser.DateCreation = DateTime.Now;

                List<UserInfo> users = _userService.GetAll();

                if (users.Select(u => u.Email).Contains(newUser.Email))
                {
                    return Conflict("This Email is already used");
                }

                UserInfo userCreated = _userService.Create(newUser);

                return userCreated;
            }
            return StatusCode(500);
        }


        // PUT: User/Update
        /// <summary>
        /// 
        /// </summary>
        [HttpPut]
        public ActionResult<UserInfo> UpdateUser([FromBody] UserInfo updatedUser)
        {
            if (updatedUser != null)
            {
                List<UserInfo> users = _userService.GetAll();

                if (!users.Select(u => u.Email).Contains(updatedUser.Email))
                {
                    return NotFound("The user was not found");
                }

                UserInfo userModified = _userService.Update(updatedUser.Id, updatedUser);

                return userModified;
            }
            return StatusCode(500);
        }


        // DELETE: User/Delete
        [HttpDelete("{id}")]
        public ActionResult DeleteUser(string id)
        {
            if (id != null)
            {
                List<UserInfo> users = _userService.GetAll();

                if (!users.Select(u => u.Id).Contains(id))
                {
                    return NotFound("The user was not found");
                }

                _userService.Remove(id);

                return Accepted("The user has been deleted");
            }
            return StatusCode(500);
        }
    }
}