/* jshint node: true */

var passport = require('passport'),
	_ = require('lodash'),
	config = require('../../config.json'),
	User = require('./schemas/User'),
	Collaborator = require('./schemas/Collaborator'),
	Project = require('./schemas/Project');


var middleware = {

	enableCORS: function (req, res, next) {
		res.header('Access-Control-Allow-Credentials', true);
		// TODO Check https vs. http
		res.header('Access-Control-Allow-Origin', '*');
		res.header('Access-Control-Allow-Headers', 'X-Requested-With');
		next();
	},

	ensureAuthenticated: function (req, res, next) {
		if (! req.isAuthenticated()) {
			req.session.returnTo = req.path;
			return res.redirect('/login');
		}
		next();
	},

	ensureIsStaff: function (req, res, next) {
		if (! req.user.isStaff) {
			return res.redirect('http://' + config.host + '/');
		}
		next();
	},

	ensureLocals: function (req, res, next) {
		res.locals.token = req.csrfToken();
		res.locals.logged_in = req.isAuthenticated()
		res.locals.user = req.user || { _id: undefined }
		res.locals.config = config
		res.locals.profile = null
    res.locals.ogImage = "http://okfocus.s3.amazonaws.com/images/vvalls-fb.png"
    res.locals.ogTitle = "VValls"
    res.locals.ogUrl = "http://vvalls.com/"
    res.locals.ogDescription = "3D gallery space, fully customizable"
    res.locals.ogAuthor = "VValls"
		res.locals.opt = {}
		next()
	},
	
	ensureProject: function (req, res, next) {
		if (req.params.slug) {
			Project.findOne({ slug: req.params.slug }, function(err, project){
				if (err) {
					console.error(err)
					req.project = null
				}
				else if (! project) {
					req.project = null
				}
				else {
					req.project = project
				}
				next()
			})
		}	
		else {
			req.project = null
			next()
		}
	},

  ensureIsCollaborator: function(req, res, next) {
    req.isCollaborator = false
    req.isOwner = false
    req.isStaff = true

    if (! req.user || ! req.project) {
      next()
    }
    else if (String(req.user._id) === String(req.project.user_id)) {
      req.isOwner = true
      next()
    }
    else {
      Collaborator.findOne({ user_id: req.user._id, project_id: req.project._id }, function(err, collab) {
        if (err || ! collab) {
          next()
        }
        else {
          req.isCollaborator = true
          next()
        }
      })
    }
  },

}

module.exports = middleware