/* 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'),
	Layout = require('./schemas/Layout'),
	Blueprint = require('./schemas/Blueprint'),
	Plan = require('./schemas/Plan');


var middleware = {

  plans: [],

	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();
	},
	
	ensureIP: function (req, res, next) {
    if (req.session.ip) {
      req.ip = req.session.ip || "127.0.0.1"
    }
    else if (req.ips) {
      req.ip = req.session.ip = req.ips[0]
      req.session.save()
    }
    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.plans = middleware.plans
		res.locals.opt = {}
		next()
	},

  ensureUserProjectsCount: function(req, res, next){
    var counts = { stock: 0, basic: 0, pro: 0 }
    res.locals.projectCounts = counts
    Project.count({ user_id: req.user._id }, function(err, count){
      res.locals.projectCount = count || 0
      next()
    })
  },

  ensureUserLayoutsCount: function(req, res, next){
    var counts = { basic: 0, pro: 0 }
    res.locals.layoutCounts = counts
    if (req.user.plan_level == 0) { return next() }

    Layout.count({ user_id: req.user._id }, function(err, count){
      res.locals.layoutCount = count || 0
      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()
		}
	},

	ensureLayout: function (req, res, next) {
		if (req.params.slug) {
			Layout.findOne({ slug: req.params.slug }, function(err, layout){
				if (err) {
					console.error(err)
					req.layout = null
				}
				else if (! layout) {
					req.layout = null
				}
				else {
					req.layout = layout
				}
				next()
			})
		}
		else {
			req.layout = null
			next()
		}
	},

	ensureBlueprint: function (req, res, next) {
		if (req.params.slug) {
			Blueprint.findOne({ slug: req.params.slug }, function(err, blueprint){
				if (err) {
					console.error(err)
					req.blueprint = null
				}
				else if (! blueprint) {
					req.blueprint = null
				}
				else {
					req.blueprint = blueprint
				}
				next()
			})
		}
		else {
			req.blueprint = 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()
        }
      })
    }
  },
  
  updatePlans: function(){
    Plan.find({}).sort({ 'level': -1 }).exec(function (err, plans) {
      middleware.plans = plans.map(function(plan){ return plan.toObject() })
    })
  },

}

module.exports = middleware