using System;
using System.Collections.Generic;
using System.Collections.Immutable;
using System.Linq;
using BlueWest.Collections;
using BlueWest.Data;
using BlueWest.WebApi.MySQL;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;

namespace BlueWest.WebApi.Controllers
{
    [ApiController]
    [Route("[controller]")]
    public class UserController : ControllerBase
    {

        private readonly MysqlDbContext _dbContext;

        public UserController(MysqlDbContext dbContext)
        {
            _dbContext = dbContext;
        }
        
        [ProducesResponseType(StatusCodes.Status200OK)]
        [HttpGet]
        public ActionResult Get()
        {
            var users = _dbContext.Users.ToImmutableArray();

            return Ok(users);

        }
        
        
        [ProducesResponseType(StatusCodes.Status200OK)]
        [ProducesResponseType(StatusCodes.Status404NotFound)]
        [HttpGet("{userId}", Name = nameof(GetUserById))]
        public ActionResult GetUserById(TimeSpan userId)
        {
            var user = _dbContext.Users.FirstOrDefault(x => x.Id == userId);

            if (user != null)
            {
                return Ok(user);
            }
            
            return new NotFoundResult();
        }
        
        
        [ProducesResponseType(StatusCodes.Status200OK)]
        [ProducesResponseType(StatusCodes.Status400BadRequest)]
        [HttpGet("{userId}/transactions")]
        public ActionResult GetTransactions(int userId)
        {
            return Ok();
        }
                       
        
        [ProducesResponseType(StatusCodes.Status200OK)]
        [ProducesResponseType(StatusCodes.Status400BadRequest)]
        [HttpGet("{userId}/transactions/{transactionId}")]
        public ActionResult GetTransactionsById(int userId, TimeSpan transactionId)
        {
            return new NotFoundResult();
        }
        
        
        [ProducesResponseType(StatusCodes.Status201Created)]
        [HttpPost]
        public ActionResult AddUser(UserUpdateDto userUpdateDto)
        {
            var user = new User(userUpdateDto, DateTime.Now.TimeOfDay, new List<FinanceTransaction>());
            _dbContext.Users.Add(user);
            _dbContext.SaveChanges();
            return CreatedAtRoute(nameof(GetUserById),  new {userId = user.Id}, user);
        }        
        
        [ProducesResponseType(StatusCodes.Status200OK)]
        [ProducesResponseType(StatusCodes.Status400BadRequest)]
        [HttpPut("{userId}")]
        public ActionResult UpdateUser(int userId, UserUpdateDto userUpdate)
        {

            return new NotFoundResult();
        }
        
        [ProducesResponseType(StatusCodes.Status204NoContent)]
        [ProducesResponseType(StatusCodes.Status400BadRequest)]
        [HttpDelete("{id}")]
        public ActionResult DeleteUser(TimeSpan id)
        {
            var user = _dbContext.Users.FirstOrDefault(u => u.Id == id);
            if (user == null)
            {
                return new NotFoundResult();
            }
            _dbContext.Users.Remove(user);
            _dbContext.SaveChanges();
            return Ok();
        }
        
        [ProducesResponseType(StatusCodes.Status200OK)]
        [ProducesResponseType(StatusCodes.Status400BadRequest)]
        [HttpPost("{userId}/transactions")]
        public ActionResult PostTransaction(int userId, FinanceTransactionInsertDto financeTransaction)
        {
            return new BadRequestResult();
        }
        
        
    }
}