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var dbFile = require("../node_simple.js");
var express = require('express');
var router = express.Router();
var csrf = require('csurf'); // Cross-Site Request Forgery prevention
var csrfProtection = csrf();
router.use(csrfProtection); // router is protected
// Remove later
var passport_file = require('../config/passport.js');
var bcrypt = require('bcrypt-nodejs');
/* Render/GET homepage. */
router.get('/', function(req, res, next) {
//addFirstAdmin();
res.render('index');
req.session.errors = null;
req.session.success = null;
});
/* Render/GET about page */
router.get('/about', function(req, res, next) {
res.render('about');
});
/* Render/GET user_solutions page */
router.get('/user_solutions', function(req, res, next) {
res.render('user_solutions');
});
//EXAMPLE EXPECTED DATA GIVEN BELOW:
/*[ {courseCode: 'CSC240',
year: 2016,
term: 'Fall',
instructors: ['Faith Ellen', 'Tom F.'],
type: 'Midterm Examination',
title: 'Thry of Computation' },
{courseCode: 'CSC240',
year: 2014,
term: 'Fall',
instructors: ['Faith Ellen', 'Tom F.'],
type: 'Midterm Examination',
title: 'Thry of Computation' } ]
*/
router.get('/exams/:id', function(req, res, next) {
var minExamInfoArray = [];
dbFile.get_all_exams(req.params.id, function (exams) {
if (exams.length == 0){
console.log("Nothing was found");
}
else {
//console.log(exams);
//only pass over the information that is necessary for the exams page
for (var i = 0; i<exams.length;i++){
var getInstructors = exams[i].instructors.join(", ");
var minExamInfo = { courseCode:exams[i].course_code,
year:exams[i].year,
term:toProperCase(exams[i].term),
instructors: getInstructors,
type:toProperCase(exams[i].type) + " Examination",
title:exams[i].title,
id:exams[i]._id,
questionCount : exams[i].questions_count
};
//console.log(minExamInfo);
minExamInfoArray.push(minExamInfo);
}
}
res.render('exams', {query: req.params.id, result: minExamInfoArray});
});
});
/* Render/GET search (exam) page */
router.get('/search', function(req, res, next) {
console.log(req.query.search);
var courseName = req.query.search;
res.redirect('/exams/' + courseName);
});
/* This is a redirect from the exams page, route is generated in exams.hbs
*
* EXAMPLE DATA GIVEN BELOW:
* questions = [{id,count,comments},{id,count,comments}] --> array of "question" objects
*
* id = questions number
* count= number of solutions
* comments = number of comments*/
router.get('/questions/:exam_id', function (req,res) {
var examID = req.params.exam_id;
console.log(examID);
dbFile.get_exam_byID(examID, function(success, error, exam){
/* [
{ q_id: 1, question: 'this is q1' },
{ q_id: 2, question: 'this is q2' }
]
*/
var qList = exam.questions_list;
// Add comments/solutions
dbFile.get_exam_info_by_ID(examID, function (questionsInfo) {
qList.forEach(function(question){
question.count = 0;
question.comments = 0;
// Find q_id in questionsInfo, update comment/solutions count
questionsInfo.forEach(function(q){
if (question.q_id == q._id){
question.count += q.count;
question.comments += q.comments;
}
});
});
var examInfo = {
id : exam._id,
courseCode : exam.course_code,
term : toProperCase(exam.term),
type : toProperCase(exam.type),
year : exam.year,
instructors : exam.instructors.join(),
uploadDate : exam.upload_date,
uploader : exam.uploaded_by,
pageCount : exam.page_count,
questionCount : exam.questions_count
};
res.render('questions', {query: qList, examInfo: examInfo});
});
});
});
/*GET the solutions for a given exam given the question number and the exam_id
* EXPECTED DATA GIVEN BELOW:
* array of solutions:
* solutions = [ {
* _id: "354ff71ed078933079d6467e"
* exam_id: "578a44ff71ed097fc3079d6e"
* q_id: 1 (int)
* text: "answer"
* votes: 1 (int)
* comments: [{}.{}] (just going to be string for now i think)
* author : "text"
* }
* {
* _id: ...
* exam_id: ..
* q_id: ...
* text: ..
* votes: ..
comments: ..
author : "text"
*
* }
* ]
* "comments": []
*
A comment:
{
"text": "this is asdfasdf",
"date": {"$date": "2016-07-23T03:55:34.906Z"},
"by": "some_user name"
},
*
*/
router.get('/solutions/:exam_id/:q_num', function (req, res) {
var examID = req.params.exam_id;
var qID = req.params.q_num;
dbFile.get_all_solutions(examID, qID, function (solutions) {
solutions.forEach(function(soln){
soln.commentCount = soln.comments.length;
});
res.render('user_solutions', {query: solutions, examID: examID, qID: qID, csrfToken: req.csrfToken()});
});
});
router.post('/add_solutions/submit', function (req, res) {
//TODO: get the form information for the solutions
});
/**** Helpers ****/
function addFirstAdmin() {
//console.log("Inside addFirstAdmin()");
//admin_data = {fname: firstname, lname: lastname, username: username, password: password}
var password = 'lamptable';
var hash_pwd = passport_file.encryptPassword(password);
//console.log("Admin hashed: " + hash_pwd);
var admin_data = {
fname: 'Admin',
lname: 'Admin',
username: 'admin',
password: hash_pwd
};
dbFile.addAdmin(admin_data, function (success, error, message) {
console.log("admin message: " + message);
});
}
function getExamsForCourseCode(courseCode) {
dbFile.get_all_exams(courseCode, function (exams) {
if (exams.length == 0){
console.log("Nothing was found");
}
else {
console.log(exams);
}
});
}
function toProperCase(string) {
return string.replace(/\w\S*/g, function(txt){return txt.charAt(0).toUpperCase() + txt.substr(1).toLowerCase();});
}
module.exports = router;
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