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>
    /// 維修群組維護
    /// </summary>
    [Route("api/[controller]")]
    [ApiController]
    public class RMAGroupsController : ControllerBase
    {
        private readonly AMESContext _context;

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

        /// <summary>
        /// 
        /// </summary>
        /// <returns></returns>
        // GET: api/RMAGroups
        [HttpGet]
        public async Task<ActionResult<IEnumerable<RMAGroup>>> GetRMAGroup(int page=1,int limit = 10)
        {
            IQueryable<RMAGroup> q = _context.RMAGroups;
            if (page > 0)
            {
                q = q.OrderBy(p => p.RMAGroupNo).Skip((page - 1) * limit).Take(limit);
            }
            else
            {
                q = q.OrderBy(p => p.RMAGroupNo);
            }

            var rmaGroup = await q.ToListAsync();

            return rmaGroup;
        }

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

            var rmaGroup = await q.ToListAsync();

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

            return rmaGroup;
        }

        /// <summary>
        /// 
        /// </summary>
        /// <param name="id"></param>
        /// <param name="rMAGroup"></param>
        /// <returns></returns>
        // PUT: api/RMAGroups/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<RMAGroup>> PutRMAGroup(string id, [FromBody] RMAGroup rMAGroup)
        {
            ResultModel<RMAGroup> result = new ResultModel<RMAGroup>();

            if (id != rMAGroup.RMAGroupNo)
            {
                result.Success = false;
                result.Msg = "群組代碼錯誤";
                return result;
            }

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

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

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

        /// <summary>
        /// 
        /// </summary>
        /// <param name="rMAGroup"></param>
        /// <returns></returns>
        // POST: api/RMAGroups
        // 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<RMAGroup>> PostRMAGroup([FromBody] RMAGroup rMAGroup)
        {
            ResultModel<RMAGroup> result = new ResultModel<RMAGroup>();

            _context.RMAGroups.Add(rMAGroup);
            try
            {
                await _context.SaveChangesAsync();
            }
            catch (DbUpdateException)
            {
                if (RMAGroupExists(rMAGroup.RMAGroupNo))
                {
                    result.Success = false;
                    result.Msg = "群組代碼重複";
                    return result;
                }
                else
                {
                    throw;
                }
            }

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

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

            var rMAGroup = await _context.RMAGroups.FindAsync(id);
            if (rMAGroup == null)
            {
                result.Success = false;
                result.Msg = "群組代碼不存在";
                return result;
            }

            _context.RMAGroups.Remove(rMAGroup);
            await _context.SaveChangesAsync();

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

        private bool RMAGroupExists(string id)
        {
            return _context.RMAGroups.Any(e => e.RMAGroupNo == id);
        }
    }
}