'use strict';

const router = require('express').Router();
const {Torrent} = require('>/models');
const organize = require('>/controller/organize');

function authTorrent(torrent, req){
	if(torrent && torrent.isPrivate && torrent.added_by !== req.user.username){
		let error = new Error('TorrentNotFound');
		error.name = 'TorrentNotFound';
		error.message = 'Torrent not found';
		error.status = 404;
		throw error;
	}
	return torrent;
}

router.get('/', async function(req, res, next){
	try{
		let username = req.query.username || req.user.username;
		let where = {added_by: username};
		if(username !== req.user.username) where.isPrivate = false;

		res.json({results: await Torrent.findAll({
			where,
			limit: req.query.limit,
			offset: req.query.offset,
			order: [
			    ['createdAt', 'DESC'],
			],
		})});
	}catch(error){
		next(error);
	}
});

router.post("/", async function(req, res, next){
	try{
		res.json(await Torrent.create({...req.body, added_by: req.user.username}))
	}catch(error){
		next(error);
	}
});

router.get('/server', async function(req, res, next){
	try{
		res.json(await Torrent.trClient.sessionStats())
	}catch(error){
		next(error);
	}
});

router.get("/:hashString", async function(req, res, next){
	try{
		let torrent = authTorrent(await Torrent.findByPk(req.params.hashString), req);
		if('latest' in req.query){
			torrent = await torrent.getTorrentData();
		}
		res.json({result: torrent});
	}catch(error){
		next(error);
	}
});

router.delete("/:hashString", async function(req, res, next){
	try{
		let torrent = authTorrent(await Torrent.findByPk(req.params.hashString), req);

		res.json({result: torrent, activity: await torrent.destroy()});
	}catch(error){
		next(error);
	}
});

router.post("/:hashString/stop", async function(req, res, next){
	try{
		let torrent = authTorrent(await Torrent.findByPk(req.params.hashString), req);

		res.json({result: torrent, activity: await torrent.stop()});
	}catch(error){
		next(error);
	}
});

router.post("/:hashString/start", async function(req, res, next){
	try{
		let torrent = authTorrent(await Torrent.findByPk(req.params.hashString), req);

		res.json({result: torrent, activity: await torrent.start()});
	}catch(error){
		next(error);
	}
});

// Manually (re)run organization for a finished torrent.
router.post("/:hashString/organize", async function(req, res, next){
	try{
		let torrent = authTorrent(await Torrent.findByPk(req.params.hashString), req);
		if(!torrent){ let e = new Error('TorrentNotFound'); e.status = 404; throw e; }

		res.json(await organize.fileTorrent(torrent));
	}catch(error){
		next(error);
	}
});

// Correct a wrong match: re-file an already-organized torrent under a chosen TMDB id.
router.post("/:hashString/organize/match", async function(req, res, next){
	try{
		let torrent = authTorrent(await Torrent.findByPk(req.params.hashString), req);
		if(!torrent){ let e = new Error('TorrentNotFound'); e.status = 404; throw e; }

		res.json(await organize.refileWithMatch(torrent, req.body.tmdbId, req.body.mediaType));
	}catch(error){
		next(error);
	}
});



module.exports = router;