var express  = require('express');
var router   = express.Router();
var multer    = require('multer');
var fs       = require('fs');

var tmpStorage = process.env['HOME'] + '/webapps/ofbstatic/media/sermons/tmp/';
var finalStorage = process.env['HOME'] + '/webapps/ofbstatic/media/sermons/';
console.log("Temp",tmpStorage);
console.log("Final",finalStorage);
var storage = multer.diskStorage({
  destination: function (req, file, cb) {
    if (req.hostname.startsWith('localhost')){
        tmpStorage = '/home/me/Music/Sermons/tmp/';
        finalStorage = '/home/me/Music/Sermons/';
    }
    cb(null, tmpStorage);
  },
  filename: function (req, file, cb) {
    cb(null, file.originalname);
  }
})
var upload = multer({ storage:storage });
var auth = require('../../authentication/login')

function removeFile(filename){
    if (filename == null)
        return;
        
    filepath = tmpStorage + filename;
    fs.unlinkSync(filepath);
}

//Invoked for all requests
router.use(upload.single('file'),function(req,res,next){
    var filename = req.file ? req.file.filename : null;

    if (!req.signedCookies.tokenUser || !req.signedCookies.tokenId || !req.signedCookies.tokenValue){
        removeFile(filename);
        res.status(400).json({"status":400,"message":"invalid token cookie. token needs a userId, id, and value"});
        return;
    }
    
    var token = {};
    token.userId = req.signedCookies.tokenUser;
    token.id = req.signedCookies.tokenId;
    token.value = req.signedCookies.tokenValue;
    
    auth.verifyToken(token,function(error,isValid){
        if (error){
            removeFile(filename);
            res.status(400).json({"status":400,"message":"error validating token"});
            return;
        } else {
            if (!isValid){
                removeFile(filename);
                res.status(400).json({"status":400,"message":"invalid token"});
                return;
            }
        }
    });

    if (req.file){
        req.body.file = req.file.originalname;
        req.body.finalPath = finalStorage + req.file.filename;
        req.body.tmpPath = req.file.destination + req.file.filename;
    }
    next();
});

module.exports = router;