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server.js
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270 lines (251 loc) · 8.6 KB
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// load .env data into process.env
require("dotenv").config();
// Web server config
const PORT = process.env.PORT || 8080;
const sassMiddleware = require("./lib/sass-middleware");
const express = require("express");
const app = express();
const morgan = require("morgan");
const bodyParser = require("body-parser");
const cookieSession = require('cookie-session');
const database = require('./lib/database');
// PG database client/connection setup
const { Pool } = require("pg");
const dbParams = require("./lib/db.js");
const db = new Pool(dbParams);
db.connect();
// Load the logger first so all (static) HTTP requests are logged to STDOUT
// 'dev' = Concise output colored by response status for development use.
// The :status token will be colored red for server error codes, yellow for client error codes, cyan for redirection codes, and uncolored for all other codes.
app.use(morgan("dev"));
app.set("view engine", "ejs");
app.use(express.urlencoded({ extended: true }));
app.use(bodyParser.urlencoded({ extended: true }));
app.use(cookieSession({
name: 'session',
keys: ['key1', 'key2']
}))
app.use(
"/styles",
sassMiddleware({
source: __dirname + "/styles",
destination: __dirname + "/public/styles",
isSass: false, // false => scss, true => sass
})
);
app.use(express.static("public"));
// Separated Routes for each Resource
// Note: Feel free to replace the example routes below with your own
const widgetsRoutes = require("./routes/widgets");
const quizzesRoutes = require("./routes/quizzes");
const testsRoutes = require("./routes/tests");
const alternativesRoutes = require("./routes/alternatives");
// const widgets = require("./routes/widgets"); same as above
const answersRoutes = require("./routes/answers");
const questionsRoutes = require("./routes/questions");
const { render } = require("express/lib/response");
const questions = require("./routes/questions");
// Mount all resource routes
// Note: Feel free to replace the example routes below with your own
// app.use("/api/users", usersRoutes(db));
app.use("/api/widgets", widgetsRoutes(db));
app.use("/api/quizzes", quizzesRoutes(db));
app.use("/api/answers", answersRoutes(db));
app.use("/api/questions", questionsRoutes(db));
app.use("/api/tests", testsRoutes(db));
app.use("/api/alternatives", alternativesRoutes(db));
// Note: mount other resources here, using the same pattern above
// Home page
// Warning: avoid creating more routes in this file!
// Separate them into separate routes files (see above).
app.get("/", (req, res) => {
Promise.all([
database.getAllQuizzes(),
database.getAllTests(),
])
.then((data) => {
const userId = req.session.user_id;
const quizzes = data[0];
const tests = data[1].filter(item => (item.user_id === Number(userId)));
const templateVars = { quizzes, tests, userId };
res.render("index", templateVars);
})
.catch((err) => {
res.status(500).json({ error: err.message });
});
});
app.get("/quizzes/:id", (req, res) => {
Promise.all([
database.getQuizByQuizId(req.params.id),
database.getQuestionsByQuizId(req.params.id),
database.getAllAlternatives(),
])
.then((data) => {
const quiz = data[0];
const questions = data[1];
const alternatives = data[2];
const error = ""
for(let question of questions){
let currentAlternative = alternatives.filter(el =>el.question_id === question.id);
question["alternatives"] = currentAlternative;
}
const userId = req.session.user_id;
let templateVars = {quiz, questions, userId, error};
res.render("quizzes", templateVars)
})
.catch((err) => {
res.status(500).json({ error: err.message });
});
});
app.post("/quizzes/:id", (req, res) => {
let testId;
database.getQuestionsByQuizId(req.params.id)
.then(questions => {
if(questions.length === Object.keys(req.body).length) {
database.insertTest({
'user_id': Number(req.session.user_id),
'quiz_id': Number(req.params.id),
})
.then((newTest) => {
testId = Number(newTest[0].id);
for (const questionKey in req.body) {
const questionId = Number(questionKey.split('-')[1]);
const alternativeId = Number(req.body[questionKey]);
const answers = {
'question_id': questionId,
'alternative_id': alternativeId,
'test_id': testId,
}
console.log(answers)
database.insertAnswer(answers);
}
res.redirect(`/tests/${testId}`);
})
.catch((err) => {
res.status(500).json({ error: err.message });
});
}else{
Promise.all([
database.getQuizByQuizId(req.params.id),
database.getQuestionsByQuizId(req.params.id),
database.getAllAlternatives(),
])
.then((data) => {
const quiz = data[0];
const questions = data[1];
const alternatives = data[2];
const error = "Please answer all questions!"
for(let question of questions){
let currentAlternative = alternatives.filter(el =>el.question_id === question.id);
question["alternatives"] = currentAlternative;
}
const userId = req.session.user_id;
let templateVars = {quiz, questions, userId, error};
res.render("quizzes", templateVars)
})
.catch((err) => {
res.status(500).json({ error: err.message });
});
}
})
});
app.get("/login/:id", (req, res) => {
req.session.user_id = req.params.id;
res.redirect("/");
});
app.get("/tests/:id", (req, res) => {
database.getTestsByTestId(req.params.id)
.then((data) => { // retrieve test data
const test = data;
const userId = test.user_id;
Promise.all([ // get Stats
database.getQuizByQuizId(test.quiz_id),// get quiz data
database.quizAverage(test.quiz_id), //
database.getQuizScore(test.quiz_id),// get quiz score of all users
database.getUserScore(test.user_id, test.quiz_id), // get user score
database.getQuizCorrectAlternatives(test.quiz_id) // get correct alternatives
])
.then((data) => {
const quizAverage = data[0];
const quizScore = data[1];
const userScore = data[2];
const quiz = data[3];
const correctAlternatives = data[4];
const templateVars = {quizAverage, quizScore, userScore, quiz, correctAlternatives, userId};
console.log(correctAlternatives);
res.render("tests", templateVars);
})
.catch((err) => {
res.status(500).json({ error: err.message });
});
})
.catch((err) => {
res.status(500).json({ error: err.message });
});
});
app.post("/create", (req, res) => {
let quizTitle;
let isUnlisted = false;
let questions = {};
console.log(req.body);
for (const key in req.body) {
if (key === 'quiz-title') {
quizTitle = req.body[key];
} else if (key.startsWith("question")) {
const keyInfo = key.split('-');
const questionKey = keyInfo[1];
if (keyInfo[2] === 'title') {
questions[questionKey] = {
'title': req.body[key],
'options': [],
'answer': '',
};
} else if (keyInfo[2] === 'option') {
questions[questionKey]['options'].push(req.body[key]);
} else if (keyInfo[2] === 'answer') {
questions[questionKey]['answer'] = Number(req.body[key].split('-')[1]) - 1;
}
} else if (key === 'unlisted_checkbox' && req.body[key] === 'on') {
isUnlisted = true;
}
}
const userId = req.session.user_id;
console.log('Quiz Title:', quizTitle);
console.log('Quiz Unlisted:', isUnlisted);
console.log('Questions:', questions);
const quiz = {
'title': quizTitle,
'owner_id': userId,
'is_unlisted': isUnlisted
}
database.insertQuiz(quiz).then((newQuiz) => {
const quizId = Number(newQuiz[0].id);
for (const questionKey in questions) {
database.insertQuestion({
'question': questions[questionKey]['title'],
'quiz_id': quizId
}).then((newQuestion) => {
const questionId = Number(newQuestion[0].id);
for (let opInd = 0; opInd < questions[questionKey]['options'].length; opInd ++) {
database.insertAlternative({
'question_id': questionId,
'alternative': questions[questionKey]['options'][opInd],
'is_correct': (opInd === questions[questionKey]['answer'])
});
}
});
}
});
res.redirect('/');
});
app.post("/list/:quiz_id", (req, res) => {
database.updateQuizIsUnlisted(Number(req.params.quiz_id), false);
res.redirect('/');
})
app.post("/unlist/:quiz_id", (req, res) => {
database.updateQuizIsUnlisted(Number(req.params.quiz_id), true);
res.redirect('/');
})
app.listen(PORT, () => {
console.log(`Example app listening on port ${PORT}`);
});