using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;
using AMESCoreStudio.WebApi.Models.SYS;

namespace AMESCoreStudio.WebApi.Controllers.SYS
{
    /// <summary>
    /// 
    /// </summary>
    [Route("api/[controller]")]
    [ApiController]
    public class SystemInfoesController : ControllerBase
    {
        private readonly AMESContext _context;

        /// <summary>
        /// 
        /// </summary>
        /// <param name="context"></param>
        public SystemInfoesController(AMESContext context)
        {
            _context = context;
        }

        /// <summary>
        /// 獲取系統資料
        /// </summary>
        /// <returns></returns>
        // GET: api/SystemInfoes
        [HttpGet]
        public async Task<ActionResult<IEnumerable<SystemInfo>>> GetSystemInfo()
        {
            IQueryable<SystemInfo> q = _context.SystemInfoes;

            q = q.OrderBy(p => p.SystemID);

            //q = q.OrderByDescending(p => p.SystemID);

            var systemInfo = await q.ToListAsync();

            //return await _context.SystemInfoes.ToListAsync();

            return systemInfo;
        }

        /// <summary>
        /// 根據ID查詢系統資料
        /// </summary>
        /// <param name="id"></param>
        /// <returns></returns>
        // GET: api/SystemInfoes/5
        [HttpGet("{id}")]
        public async Task<ActionResult<IEnumerable<SystemInfo>>> GetSystemInfo(int id)
        {
            IQueryable<SystemInfo> q = _context.SystemInfoes;

            q = q.Where(p => p.SystemID.Equals(id));

            var systemInfo = await q.ToListAsync();

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

            return systemInfo;
        }

        /// <summary>
        /// 修改系統資料
        /// </summary>
        /// <param name="id"></param>
        /// <param name="systemInfo"></param>
        /// <returns></returns>
        // PUT: api/SystemInfoes/5
        // To protect from overposting attacks, enable the specific properties you want to bind to, for
        // more details, see https://go.microsoft.com/fwlink/?linkid=2123754.
        [HttpPut("{id}")]
        public async Task<ActionResult<SystemInfo>> PutSystemInfo(int id, [FromBody] SystemInfo systemInfo)
        {
            if (id != systemInfo.SystemID)
            {
                return BadRequest();
            }

            _context.Entry(systemInfo).State = EntityState.Modified;
            systemInfo.UpdateDateTime = DateTime.Now;
            systemInfo.UpdateUserId = 0;

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

            return systemInfo;
            //return NoContent();
        }

        /// <summary>
        /// 新增系統資料
        /// </summary>
        /// <param name="systemInfo"></param>
        /// <returns></returns>
        // POST: api/SystemInfoes
        // To protect from overposting attacks, enable the specific properties you want to bind to, for
        // more details, see https://go.microsoft.com/fwlink/?linkid=2123754.
        [HttpPost]
        public async Task<ActionResult<SystemInfo>> PostSystemInfo([FromBody] SystemInfo systemInfo)
        {
            Helper helper = new Helper(_context);
            systemInfo.SystemID = helper.GetIDKey("SYSTEM_ID").Result;
            systemInfo.CreateDateTime = DateTime.Now;
            systemInfo.CreateUserId = 0;

            _context.SystemInfoes.Add(systemInfo);
            await _context.SaveChangesAsync();

            return CreatedAtAction("GetSystemInfo", new { id = systemInfo.SystemID }, systemInfo);
        }

        /// <summary>
        /// 根據ID刪除系統資料
        /// </summary>
        /// <param name="id"></param>
        /// <returns></returns>
        // DELETE: api/SystemInfoes/5
        [HttpDelete("{id}")]
        public async Task<ActionResult<SystemInfo>> DeleteSystemInfo(int id)
        {
            //var systemInfo = await _context.SystemInfo.FindAsync(id);
            var systemInfo = await _context.SystemInfoes.Where(m => m.SystemID == id).FirstOrDefaultAsync();
            if (systemInfo == null)
            {
                return NotFound();
            }

            _context.SystemInfoes.Remove(systemInfo);
            await _context.SaveChangesAsync();

            return systemInfo;
        }

        private bool SystemInfoExists(int id)
        {
            return _context.SystemInfoes.Any(e => e.SystemID == id);
        }
    }
}