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;
using Hangfire.Storage;

namespace YTManager.Controllers {
    [Produces("application/json")]
    [Route("api/Admin")]
    public class AdminController : Controller {
        // ID for mass update job, used to tell if the job is running or not.
        public static string Mass_Updater_ID { get; } = "2013066213";

        // POST api/Admin/Trigger_Mass_Update
        // Trigger a mass channel update.
        [HttpPost("Trigger_Mass_Update")]
        public IActionResult Trigger_Mass_Update() {
            Hangfire.RecurringJob.Trigger(Mass_Updater_ID);
            return Ok();
        }

        // POST api/Admin/Update/YTChannelID
        // Update the videos for a specific channel.
        [HttpPost("Update/{YoutubeID}")]
        public IActionResult Update([FromRoute] string YoutubeID) {
            Hangfire.BackgroundJob.Enqueue(() => Tasks.FetchVideos.ChannelUpdate(Startup.DBStr, YoutubeID));
            return Ok();
        }

        // POST api/Admin/Start_Updater
        // Ensures that the background YT Channel update API is running.
        [HttpPost("Start_Updater")]
        public IActionResult Start_Updater() {
            Hangfire.RecurringJob.AddOrUpdate(
                Mass_Updater_ID,
                () => Tasks.FetchVideos.MassUpdate(Startup.DBStr), Hangfire.Cron.Hourly);
            return Ok();
        }

        // GET api/Admin/Updater
        // Check if the periodic update job is enqued.
        [HttpGet("Update")]
        public IActionResult Get_Update_Status() {
            bool exists = Hangfire.JobStorage.Current.GetConnection().GetRecurringJobs().Any(j => j.Id == Mass_Updater_ID);
            return Ok(exists ? "true" : "false");
        }
    }
}