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 AMESCoreStudio.WebApi;
using AMESCoreStudio.WebApi.Models.AMES;
using AMESCoreStudio.CommonTools.Result;

namespace AMESCoreStudio.WebApi.Controllers.AMES
{
    /// <summary>
    /// 異常群組維護
    /// </summary>
    [Route("api/[controller]")]
    [ApiController]
    public class ErrorGroupsController : ControllerBase
    {
        private readonly AMESContext _context;

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

        /// <summary>
        /// 
        /// </summary>
        /// <returns></returns>
        // GET: api/ErrorGroups
        [HttpGet]
        public async Task<ActionResult<IEnumerable<ErrorGroup>>> GetErrorGroup()
        {
            IQueryable<ErrorGroup> q = _context.ErrorGroups;

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

            var errorGroup = await q.ToListAsync();

            return errorGroup;
        }

        /// <summary>
        /// 
        /// </summary>
        /// <param name="id"></param>
        /// <returns></returns>
        // GET: api/ErrorGroups/5
        [HttpGet("{id}")]
        public async Task<ActionResult<IEnumerable<ErrorGroup>>> GetErrorGroup(string id)
        {
            IQueryable<ErrorGroup> q = _context.ErrorGroups;
            q = q.Where(p => p.GroupNo.Equals(id));

            var errorGroup = await q.ToListAsync();

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

            return errorGroup;
        }

        /// <summary>
        /// 
        /// </summary>
        /// <param name="id"></param>
        /// <param name="errorGroup"></param>
        /// <returns></returns>
        // PUT: api/ErrorGroups/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<ErrorGroup>> PutErrorGroup(string id, [FromBody] ErrorGroup errorGroup)
        {
            if (id != errorGroup.GroupNo)
            {
                return BadRequest();
            }

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

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

            return errorGroup;
        }

        /// <summary>
        /// 
        /// </summary>
        /// <param name="errorGroup"></param>
        /// <returns></returns>
        // POST: api/ErrorGroups
        // 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<ErrorGroup>> PostErrorGroup([FromBody] ErrorGroup errorGroup)
        {
            ResultModel<ErrorGroup> result = new ResultModel<ErrorGroup>();
            _context.ErrorGroups.Add(errorGroup);
            try
            {
                await _context.SaveChangesAsync();
            }
            catch (DbUpdateException)
            {
                if (ErrorGroupExists(errorGroup.GroupNo))
                {
                    //return Conflict();
                    result.Success = false;
                    return result;
                }
                else
                {
                    throw;
                }
            }

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

            return result;
        }

        /// <summary>
        /// 
        /// </summary>
        /// <param name="id"></param>
        /// <returns></returns>
        // DELETE: api/ErrorGroups/5
        [HttpDelete("{id}")]
        public async Task<ActionResult<string>> DeleteErrorGroup(string id)
        {
            var errorGroup = await _context.ErrorGroups.Where(p => p.GroupNo == id).FirstOrDefaultAsync();
            if (errorGroup == null)
            {
                return NotFound();
            }

            _context.ErrorGroups.Remove(errorGroup);
            await _context.SaveChangesAsync();

            return "OK";
            //return errorGroup;
        }

        private bool ErrorGroupExists(string id)
        {
            return _context.ErrorGroups.Any(e => e.GroupNo == id);
        }
    }
}