using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;
using Parking_space_WebAPI.Models;
using Parking_space_WebAPI.Authorization;
using Parking_space_WebAPI.Services;

namespace Parking_space_WebAPI.Controllers
{
    [Route("api/[controller]")]
    [ApiController]
    [Authorize]
    [ApiExplorerSettings(GroupName = "校園外網")]
    public class Parking_space_algorithmController : ControllerBase
    {
        private readonly SqlContext _context;
        private static int serialNumber = 1; // 初始流水号

        public Parking_space_algorithmController(SqlContext context)
        {
            _context = context;
        }

        #region 獲取所有演算法狀態的資料
        // GET: api/Parking_space_algorithm
        /// <summary>
        /// 獲取所有演算法狀態的資料 
        /// </summary>
        [HttpGet]
        public async Task<ActionResult<IEnumerable<Parking_space_algorithm>>> Getparking_space_algorithm()
        {
          if (_context.parking_space_algorithm == null)
          {
              return NotFound();
          }
            return await _context.parking_space_algorithm.ToListAsync();
        }
        #endregion


        #region 獲取單一演算法狀態資料
        // GET: api/Parking_space_algorithm/5
        /// <summary>
        /// 獲取單一演算法狀態資料 
        /// </summary>
        [HttpGet("{id}")]
        public async Task<ActionResult<Parking_space_algorithm>> GetParking_space_algorithm(string id)
        {
          if (_context.parking_space_algorithm == null)
          {
              return NotFound();
          }
            var parking_space_algorithm = await _context.parking_space_algorithm.FindAsync(id);

            if (parking_space_algorithm == null)
            {
                return NotFound();
            }

            return parking_space_algorithm;
        }
        #endregion


        #region 編輯單一演算法狀態資料
        // PUT: api/Parking_space_algorithm/5
        /// <summary>
        /// 編輯單一演算法狀態資料 
        /// </summary>
        [HttpPut("{id}")]
        public async Task<IActionResult> PutParking_space_algorithm(string id, Parking_space_algorithm parking_space_algorithm)
        {
            if (id != parking_space_algorithm.algorithm_serial_num)
            {
                return BadRequest();
            }

            _context.Entry(parking_space_algorithm).State = EntityState.Modified;

            try
            {
                await _context.SaveChangesAsync();
            }
            catch (DbUpdateConcurrencyException)
            {
                if (!Parking_space_algorithmExists(id))
                {
                    return NotFound();
                }
                else
                {
                    throw;
                }
            }

            return NoContent();
        }
        #endregion


        #region 新增演算法狀態資料
        // POST: api/Parking_space_algorithm
        /// <summary>
        /// 新增演算法狀態資料 
        /// </summary>
        [HttpPost]
        public async Task<ActionResult<Parking_space_algorithm>> PostParking_space_algorithm(Parking_space_algorithm parking_space_algorithm)
        {
          if (_context.parking_space_algorithm == null)
          {
              return Problem("Entity set 'SqlContext.parking_space_algorithm'  is null.");
          }
            // 获取当前日期时间，并将其格式化为字符串
            string formattedDateTime = DateTime.Now.ToString("yyyyMMddHHmmss") + serialNumber.ToString();
            // 生成流水号，例如：SN20231124161404
            string formattedSerialNumber = $"SN{formattedDateTime}";
            parking_space_algorithm.algorithm_serial_num = formattedDateTime;
            parking_space_algorithm.run_time = DateTime.Now.ToString("yyyy-MM-dd HH:mm");
            _context.parking_space_algorithm.Add(parking_space_algorithm);
            // 增加流水号以便下次使用
            serialNumber++;
            try
            {
                await _context.SaveChangesAsync();
            }
            catch (DbUpdateException)
            {
                if (Parking_space_algorithmExists(parking_space_algorithm.algorithm_serial_num))
                {
                    return Conflict();
                }
                else
                {
                    throw;
                }
            }

            return CreatedAtAction("GetParking_space_algorithm", new { id = parking_space_algorithm.algorithm_serial_num }, parking_space_algorithm);
        }
        #endregion

        #region 刪除演算法狀態資料
        // DELETE: api/Parking_space_algorithm/5
        /// <summary>
        /// 刪除演算法狀態資料 
        /// </summary>
        [HttpDelete("{id}")]
        public async Task<IActionResult> DeleteParking_space_algorithm(string id)
        {
            if (_context.parking_space_algorithm == null)
            {
                return NotFound();
            }
            var parking_space_algorithm = await _context.parking_space_algorithm.FindAsync(id);
            if (parking_space_algorithm == null)
            {
                return NotFound();
            }

            _context.parking_space_algorithm.Remove(parking_space_algorithm);
            await _context.SaveChangesAsync();

            return NoContent();
        }
        #endregion

        private bool Parking_space_algorithmExists(string id)
        {
            return (_context.parking_space_algorithm?.Any(e => e.algorithm_serial_num == id)).GetValueOrDefault();
        }
    }
}