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index.js
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index.js
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/*
Int Fract
https://github.com/intfract
Please leave this comment as attribution!
*/
import { render, Router } from 'webity'
import express from 'express'
import fetch from 'node-fetch'
import bodyParser from 'body-parser'
import fs from 'fs'
import { Configuration, OpenAIApi } from 'openai'
import * as dotenv from 'dotenv'
dotenv.config()
const app = express()
const port = process.env.PORT || 3000
/**
* determines whether a string contains words
* @param {string} text the larger body of text to check against
* @param {string} search the substring or query
*/
function contains(text, search) {
text = text.toLowerCase()
const words = search.split(' ').map(word => word.toLowerCase())
for (const word of words) {
if (!text.includes(word)) return false
}
return true
}
app.use(express.static('public'))
app.use(bodyParser.json())
app.get('/', async (req, res) => {
res.send(render('views', '', { title: 'IGCSE', path: '' }).html)
})
app.get('/courses/:subject', (req, res) => {
try {
res.send(render(`views/courses/${req.params.subject}`, '', { title: `${req.params.subject.replace('_', ' ').toUpperCase()}`, path: '../../', relative: `courses/${req.params.subject}` }).html)
} catch (e) {
res.send(render(`views/404`, '', { title: '404 Not Found!', path: '../../' }).html)
}
})
app.get('/courses/:subject/:topic', (req, res) => {
try {
res.send(render(`views/courses/${req.params.subject}/${req.params.topic}`, '', { title: `${req.params.topic.replace('_', ' ').toUpperCase()}`, path: '../../../', relative: `courses/${req.params.subject}/${req.params.topic}` }, true).html)
} catch (e) {
res.send(render(`views/404`, '', { title: '404 Not Found!', path: '../../../' }).html)
}
})
app.get('/content', (req, res) => {
res.send(render('views', 'content.html', {}).html)
})
app.get('/content/:subject', (req, res) => {
try {
res.send(render(`views/courses/${req.params.subject}`, 'content.html', { title: `${req.params.subject.replace('_', ' ').toUpperCase()}`, path: '../../', relative: `courses/${req.params.subject}` }).html)
} catch (e) {
res.send(render(`views/404`, '', { title: '404 Not Found!', path: '../../' }).html)
}
})
app.get('/questions', (req, res) => {
res.send(render(`views/questions`, '', { title: `IGCSE QUESTIONS`, path: '', relative: 'questions' }).html)
})
app.get('/questions/:subject', (req, res) => {
res.send(render(`views/questions/${req.params.subject}`, '', { title: `IGCSE ${req.params.subject.replace('_', ' ').toUpperCase()} QUESTIONS`, path: '../../', relative: `questions/${req.params.subject}` }).html)
})
app.get('/questions/:subject/:topic', (req, res) => {
try {
res.send(render(`views/questions/${req.params.subject}/${req.params.topic}`, '', { title: `${req.params.topic.replace('_', ' ').toUpperCase()} QUIZ`, path: '../../../', relative: `questions/${req.params.subject}` }).html)
} catch (e) {
res.send(render(`views/404`, '', { title: '404 Not Found!', path: '../../../' }).html)
}
})
app.get('/api', (req, res) => {
res.status(200).json({
search: {
method: 'GET',
path: '/api/search?q=',
},
marking: {
method: 'POST',
path: '/api/marking',
},
})
})
app.get('/api/search', (req, res) => {
const regex = /<\/*[A-z0-9 ="#%{}.\$/:-]+>/g
const { query } = req
console.log(query)
if (!('q' in query) || !query.q) return res.status(404).json({ error: 'empty query' })
if (query.q === '*') query.q = ''
const result = {}
const icons = {
'mathematics': 'calculate',
'computer_science': 'terminal',
'biology': 'microbiology',
'chemistry': 'science',
'physics': 'speed',
}
if ('scopes' in query) {
for (const scope of query.scopes.split(',')) {
if (!Object.keys(icons).includes(scope)) return res.status(404).json({ error: 'invalid scope' })
const icon = icons[scope]
const topics = fs.readdirSync(`views/courses/${scope}`).filter(file => !file.endsWith('.html'))
for (const topic of topics) {
const notes = fs.readFileSync(`views/courses/${scope}/${topic}/content.html`, 'utf-8').replaceAll(regex, '')
if (contains(notes, query.q)) {
result[topic] = {
text: notes,
path: `/courses/${scope}/${topic}`,
icon,
topic: true,
}
}
}
}
return res.json(result)
}
const courses = fs.readdirSync('views/courses')
for (const course of courses) {
const content = fs.readFileSync(`views/courses/${course}/content.html`, 'utf-8').replaceAll(regex, '')
const icon = icons[course]
if (contains(content, query.q)) {
result[course] = {
text: content,
path: `/courses/${course}`,
icon,
topic: false,
}
}
const topics = fs.readdirSync(`views/courses/${course}`).filter(file => !file.endsWith('.html'))
for (const topic of topics) {
const notes = fs.readFileSync(`views/courses/${course}/${topic}/content.html`, 'utf-8').replaceAll(regex, '')
if (contains(notes, query.q)) {
result[topic] = {
text: notes,
path: `/courses/${course}/${topic}`,
icon,
topic: true,
}
}
}
}
res.status(200).json(result)
})
app.post('/api/marking', async (req, res) => {
const { prompt } = req.body
if (!prompt) return res.status(404).json({ error: 'invalid prompt' })
console.log(prompt)
const apiKey = process.env.openai
const configuration = new Configuration({
apiKey,
})
const openai = new OpenAIApi(configuration)
try {
const response = await openai.createCompletion({
model: "text-davinci-003",
prompt,
temperature: 0,
max_tokens: 1024,
})
const completion = response.data.choices[0].text
console.log(completion)
return res.status(200).json({
prompt,
completion,
})
} catch (error) {
if (error.response) {
console.error(error.response.status, error.response.data)
} else {
console.error(`OpenAI Error: ${error.message}`)
}
}
})
app.get('/api/questions', (req, res) => {
const { subject, topic } = req.query
const subjects = fs.readdirSync('views/questions')
if (!(subject && subjects.includes(subject))) return res.status(404).json({ error: 'invalid subject' })
const topics = fs.readdirSync(`views/questions/${subject}`).filter(file => !file.endsWith('.html'))
if (topic && topics.includes(topic)) {
const quiz = JSON.parse(fs.readFileSync(`views/questions/${subject}/${topic}/quiz.json`, 'utf-8'))
res.status(200).json(quiz)
} else {
const result = {}
for (const t of topics) {
const quiz = JSON.parse(fs.readFileSync(`views/questions/${subject}/${t}/quiz.json`, 'utf-8'))
result[t] = quiz
}
res.status(200).json(result)
}
})
app.get('/search', (req, res) => {
res.send(render(`views/search`, '', { title: 'Search Page', path: '../' }).html)
})
app.get('*', (req, res) => {
res.status(404)
if (req.accepts('html')) {
res.send(render(`views/404`, '', { title: '404 Not Found!', path: '../' }).html)
return
}
if (req.accepts('json')) {
res.json({ error: 'not found' })
return
}
res.type('txt').send('not found')
})
app.listen(port)
export default app