BackEnd/YTManager/Controllers/VideosController.cs

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 YTManager;
using YTManager.Models;

namespace YTManager.Controllers
{
    [Produces("application/json")]
    [Route("api/Videos")]
    public class VideosController : Controller
    {
        private readonly MediaDB _context;

        public VideosController(MediaDB context)
        {
            _context = context;
        }

        // GET: api/Videos
        [HttpGet]
        public IEnumerable<Video> GetVideos()
        {
            return _context.Videos;
        }

        // GET: api/Videos/5
        [HttpGet("{id}")]
        public async Task<IActionResult> GetVideo([FromRoute] long id)
        {
            if (!ModelState.IsValid)
            {
                return BadRequest(ModelState);
            }

            var video = await _context.Videos.SingleOrDefaultAsync(m => m.VideoId == id);

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

            return Ok(video);
        }

        // PUT: api/Videos/5
        [HttpPut("{id}")]
        public async Task<IActionResult> PutVideo([FromRoute] long id, [FromBody] Video video)
        {
            if (!ModelState.IsValid)
            {
                return BadRequest(ModelState);
            }

            if (id != video.VideoId)
            {
                return BadRequest();
            }

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

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

            return NoContent();
        }

        // POST: api/Videos
        [HttpPost]
        public async Task<IActionResult> PostVideo([FromBody] Video video)
        {
            if (!ModelState.IsValid)
            {
                return BadRequest(ModelState);
            }

            _context.Videos.Add(video);
            await _context.SaveChangesAsync();

            return CreatedAtAction("GetVideo", new { id = video.VideoId }, video);
        }

        // DELETE: api/Videos/5
        [HttpDelete("{id}")]
        public async Task<IActionResult> DeleteVideo([FromRoute] long id)
        {
            if (!ModelState.IsValid)
            {
                return BadRequest(ModelState);
            }

            var video = await _context.Videos.SingleOrDefaultAsync(m => m.VideoId == id);
            if (video == null)
            {
                return NotFound();
            }

            _context.Videos.Remove(video);
            await _context.SaveChangesAsync();

            return Ok(video);
        }

        private bool VideoExists(long id)
        {
            return _context.Videos.Any(e => e.VideoId == id);
        }
    }
}