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;
using AMESCoreStudio.CommonTools.Result;

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>
        /// <param name="page"></param>
        /// <param name="limit"></param>
        /// <returns></returns>
        // GET: api/SystemInfoes
        [HttpGet]
        public async Task<ResultModel<SystemInfo>> GetSystemInfo(int page = 0, int limit = 10)
        {
            ResultModel<SystemInfo> result = new ResultModel<SystemInfo>();
            IQueryable<SystemInfo> q = _context.SystemInfoes;

            result.DataTotal = q.ToList().Count;

            if (page > 0)
            {
                q = q.OrderBy(p => p.SystemID).Skip((page - 1) * limit).Take(limit); ;
            }
            else
            {
                q = q.OrderBy(p => p.SystemID);
            }

            var systemInfo = await q.ToListAsync();

            result.Data = systemInfo;

            if (systemInfo == null)
            {
                result.Msg = "查無資料";
                result.Success = false;
                return result;
            }

            result.Success = true;
            result.Msg = "OK";
            return result;
        }

        /// <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<ResultModel<SystemInfo>> PutSystemInfo(int id, [FromBody] SystemInfo systemInfo)
        {
            ResultModel<SystemInfo> result = new ResultModel<SystemInfo>();

            if (id != systemInfo.SystemID)
            {
                result.Success = false;
                result.Msg = "系統編號錯誤";
                return result;
            }

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

            try
            {
                await _context.SaveChangesAsync();
            }
            catch (DbUpdateConcurrencyException)
            {
                if (!SystemInfoExists(id))
                {
                    result.Success = false;
                    result.Msg = "系統編號不存在";
                    return result;
                }
                else
                {
                    throw;
                }
            }

            result.Success = true;
            result.Msg = "OK";
            return result;
        }

        /// <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<ResultModel<SystemInfo>> PostSystemInfo([FromBody] SystemInfo systemInfo)
        {
            ResultModel<SystemInfo> result = new ResultModel<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();

            result.Success = true;
            result.Msg = "OK";
            return result;
        }

        /// <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<ResultModel<SystemInfo>> DeleteSystemInfo(int id)
        {
            ResultModel<SystemInfo> result = new ResultModel<SystemInfo>();

            var systemInfo = await _context.SystemInfoes.Where(m => m.SystemID == id).FirstOrDefaultAsync();
            if (systemInfo == null)
            {
                result.Success = false;
                result.Msg = "系統編號不存在";
                return result;
            }

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

            result.Success = true;
            result.Msg = "OK";
            return result;
        }

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