/**
 * Module dependencies
 */

var assert = require('assert');
var util = require('util');
var _ = require('@sailshq/lodash');
var async = require('async');
var Sails = require('../../lib').Sails;


describe('req.session', function (){

  var app;

  before(function (done){
    app = Sails();
    app.load({
      globals: false,
      loadHooks: [
        'moduleloader',
        'userconfig',
        'session'
      ],
      session: {
        adapter: 'memory',
        name: 'sails.sid',
        secret: 'af9442683372850a85a87150c47b4a31'
      }
    }, done);
  });


  describe('when responding to a virtual request',function (){

    var doesSessionExist;
    var isSessionAnObject;
    var doesTestPropertyStillExist;

    before(function setupTestRoute(){
      app.post('/sessionTest', function (req, res){
        doesSessionExist = !!req.session;
        isSessionAnObject = _.isObject(req.session);
        req.session.something = 'some string';
        res.send();
      });

      app.get('/sessionTest', function (req, res){
        doesSessionExist = !!req.session;
        isSessionAnObject = _.isObject(req.session);
        doesTestPropertyStillExist = req.session.something === 'some string';
        res.send();
      });

      app.get('/sails.io.js', function (req, res){
        doesSessionExist = !!req.session;
        res.send();
      });

    });

    describe('with routes disabled by the default `isSessionDisabled` function', function() {

      it('should not exist', function (done) {
        app.request({
          url: '/sails.io.js',
          method: 'GET',
          params: {},
          headers: {}
        }, function (err, res, body){
          if (err) return done(err);
          if (res.statusCode !== 200) return done(new Error('Expected 200 status code'));
          if (doesSessionExist) return done(new Error('req.session should not exist.'));
          if (res.headers['set-cookie']) return done(new Error('Should not have a `set-cookie` header in the response.'));
          return done();
        });
      });

    });

    describe('with routes NOT disabled by the default `isSessionDisabled` function', function() {

      it('should exist', function (done) {
        app.request({
          url: '/sessionTest',
          method: 'POST',
          params: {},
          headers: {}
        }, function (err, res, body){
          if (err) return done(err);
          if (res.statusCode !== 200) return done(new Error('Expected 200 status code'));
          if (!doesSessionExist) return done(new Error('req.session should exist.'));
          if (!isSessionAnObject) return done(new Error('req.session should be an object.'));
          return done();
        });
      });


      //
      // To test:
      //
      // DEBUG=express-session mocha test/unit/req.session.test.js -b -g 'should persist'
      //

      it('should persist data between requests', function (done){
        app.request({
          url: '/sessionTest',
          method: 'POST',
          params: {},
          headers: {}
        }, function (err, clientRes, body){
          if (err) return done(err);
          if (clientRes.statusCode !== 200) return done(new Error('Expected 200 status code'));
          if (!doesSessionExist) return done(new Error('req.session should exist.'));
          if (!isSessionAnObject) return done(new Error('req.session should be an object.'));

          app.request({
            url: '/sessionTest',
            method: 'GET',
            params: {},
            headers: {
              cookie: clientRes.headers['set-cookie']
            }
          }, function (err, clientRes, body){
            if (err) return done(err);
            if (clientRes.statusCode !== 200) return done(new Error('Expected 200 status code'));
            if (!doesSessionExist) return done(new Error('req.session should exist.'));
            if (!isSessionAnObject) return done(new Error('req.session should be an object.'));
            if (!doesTestPropertyStillExist) return done(new Error('`req.session.something` should still exist for subsequent requests.'));
            return done();
          });
        });
      });

    });



  });

  after(function (done) {
    done();
  });

});