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>
    /// 維修原因維護
    /// </summary>
    [Route("api/[controller]")]
    [ApiController]
    public class RMAReasonsController : ControllerBase
    {
        private readonly AMESContext _context;

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

        /// <summary>
        /// 
        /// </summary>
        /// <returns></returns>
        // GET: api/RMAReasons
        [HttpGet]
        public async Task<ActionResult<IEnumerable<RMAReason>>> GetRMAReason()
        {
            IQueryable<RMAReason> q = _context.RMAReasons;
            q = q.OrderBy(p => p.RMAClassNo + p.RMAReasonNo);

            var rmaReason = await q.ToListAsync();

            return rmaReason;
        }

        /// <summary>
        /// 
        /// </summary>
        /// <returns></returns>
        [HttpGet]
        [Route("[action]")]
        public async Task<ResultModel<dynamic>> GetDistinctRMAReason()
        {
            ResultModel<dynamic> result = new ResultModel<dynamic>();
            var q = from q1 in _context.RMAReasons
                    select new 
                    {
                        q1.RMAReasonNo,
                        q1.RMAReasonDesc
                    };

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

            //紀錄筆數
            result.DataTotal = q.Count();

            result.Data = await q.Distinct().ToListAsync();

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

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

        /// <summary>
        /// 根据维修類別代碼NO獲取該類別维修原因資料
        /// </summary>
        /// <param name="no"></param>
        /// <param name="page"></param>
        /// <param name="limit"></param>
        /// <returns></returns>
        // GET: api/RMAReasons/Class/S
        [HttpGet("Class/{no}")]
        public async Task<ActionResult<IEnumerable<RMAReason>>> GetRMAReasonByClass(string no, int page = 0, int limit = 10)
        {
            IQueryable<RMAReason> q = _context.RMAReasons;

            if (no != null)
            {
                if (no != "*")
                {
                    q = q.Where(p => p.RMAClassNo.Equals(no));
                }
            }

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

            var rmaReason = await q.ToListAsync();

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

            return rmaReason;
        }

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

            var rmaReason = await q.ToListAsync();

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

            return rmaReason;
        }

        /// <summary>
        /// 
        /// </summary>
        /// <param name="id"></param>
        /// <param name="rMAReason"></param>
        /// <returns></returns>
        // PUT: api/RMAReasons/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<RMAReason>> PutRMAReason(string id, [FromBody] RMAReason rMAReason)
        {
            ResultModel<RMAReason> result = new ResultModel<RMAReason>();

            if (id != rMAReason.RMAReasonNo)
            {
                result.Success = false;
                result.Msg = "原因代碼錯誤";
                return result;
            }

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

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

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

        /// <summary>
        /// 
        /// </summary>
        /// <param name="rMAReason"></param>
        /// <returns></returns>
        // POST: api/RMAReasons
        // 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<RMAReason>> PostRMAReason([FromBody] RMAReason rMAReason)
        {
            ResultModel<RMAReason> result = new ResultModel<RMAReason>();

            _context.RMAReasons.Add(rMAReason);
            try
            {
                await _context.SaveChangesAsync();
            }
            catch (DbUpdateException)
            {
                if (RMAReasonExists(rMAReason.RMAReasonNo))
                {
                    result.Success = false;
                    result.Msg = "原因代碼重複";
                    return result;
                }
                else
                {
                    throw;
                }
            }

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

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

            var rMAReason = await _context.RMAReasons.FindAsync(id);
            if (rMAReason == null)
            {
                result.Success = false;
                result.Msg = "原因代碼不存在";
                return result;
            }

            _context.RMAReasons.Remove(rMAReason);
            await _context.SaveChangesAsync();

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

        private bool RMAReasonExists(string id)
        {
            return _context.RMAReasons.Any(e => e.RMAReasonNo == id);
        }
    }
}