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>
    /// 不良現象類別維護
    /// </summary>
    [Route("api/[controller]")]
    [ApiController]
    public class NGClassesController : ControllerBase
    {
        private readonly AMESContext _context;

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

        /// <summary>
        /// 
        /// </summary>
        /// <returns></returns>
        // GET: api/NGClasses
        [HttpGet]
        public async Task<ActionResult<IEnumerable<NGClass>>> GetNGClass()
        {
            IQueryable<NGClass> q = _context.NGClasses;
            q = q.OrderBy(p => p.NGClassNo);

            var ngClass = await q.ToListAsync();

            return ngClass;
        }

        /// <summary>
        /// 根据不良現象群組代碼NO獲取該群組不良現象類別資料
        /// </summary>
        /// <param name="no"></param>
        /// <param name="page"></param>
        /// <param name="limit"></param>
        /// <returns></returns>
        // GET: api/NGClasses/Group/S
        [HttpGet("Group/{no}")]
        public async Task<ActionResult<IEnumerable<NGClass>>> GetNGClassByGroup(string no, int page = 0, int limit = 10)
        {
            IQueryable<NGClass> q = _context.NGClasses;

            if (no != null)
            {
                if (no != "*")
                {
                    q = q.Where(p => p.NGGroupNo.Equals(no));
                }
            }
            
            if (page > 0)
            {
                q = q.OrderBy(p => p.NGGroupNo + p.NGClassNo).Skip((page - 1) * limit).Take(limit);
            }
            else
            {
                q = q.OrderBy(p => p.NGGroupNo + p.NGClassNo);
            }

            var ngClass = await q.ToListAsync();

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

            return ngClass;
        }

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

            var ngClass = await q.ToListAsync();

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

            return ngClass;
        }

        /// <summary>
        /// 
        /// </summary>
        /// <param name="id"></param>
        /// <param name="nGClass"></param>
        /// <returns></returns>
        // PUT: api/NGClasses/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<NGClass>> PutNGClass(string id, [FromBody] NGClass nGClass)
        {
            ResultModel<NGClass> result = new ResultModel<NGClass>();

            if (id != nGClass.NGClassNo)
            {
                result.Success = false;
                result.Msg = "类别代碼錯誤";
                return result;
            }

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

            try
            {
                await _context.SaveChangesAsync();
            }
            catch (DbUpdateConcurrencyException)
            {
                if (!NGClassExists(id))
                {
                    result.Success = false;
                    result.Msg = "类别代碼不存在";
                    return result;
                }
                else
                {
                    throw;
                }
            }

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

        /// <summary>
        /// 
        /// </summary>
        /// <param name="nGClass"></param>
        /// <returns></returns>
        // POST: api/NGClasses
        // 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<NGClass>> PostNGClass([FromBody] NGClass nGClass)
        {
            ResultModel<NGClass> result = new ResultModel<NGClass>();

            _context.NGClasses.Add(nGClass);
            try
            {
                await _context.SaveChangesAsync();
            }
            catch (DbUpdateException)
            {
                if (NGClassExists(nGClass.NGClassNo))
                {
                    result.Success = false;
                    result.Msg = "类别代碼重複";
                    return result;
                }
                else
                {
                    throw;
                }
            }

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

        /// <summary>
        /// 
        /// </summary>
        /// <param name="id"></param>
        /// <returns></returns>
        // DELETE: api/NGClasses/5
        [HttpDelete("{id}")]
        public async Task<ResultModel<NGClass>> DeleteNGClass(string id)
        {
            ResultModel<NGClass> result = new ResultModel<NGClass>();

            var nGClass = await _context.NGClasses.FindAsync(id);
            if (nGClass == null)
            {
                result.Success = false;
                result.Msg = "类别代碼不存在";
                return result;
            }

            _context.NGClasses.Remove(nGClass);
            await _context.SaveChangesAsync();

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

        private bool NGClassExists(string id)
        {
            return _context.NGClasses.Any(e => e.NGClassNo == id);
        }
    }
}