teddit/inc/processSubredditSidebar.js
2020-12-01 20:16:51 +01:00

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module.exports = function() {
this.processSubredditSidebar = (subreddit, redis, fetch, RedditAPI) => {
return new Promise(resolve => {
(async () => {
if(subreddit && !subreddit.includes('+')) {
let key = `${subreddit}:sidebar`
redis.get(key, (error, json) => {
if(error) {
console.error(`Error getting the ${subreddit}:sidebar key from redis.`, error)
resolve(null)
}
if(json) {
json = JSON.parse(json)
let obj = {
title: json.data.title,
public_description_html: json.data.public_description_html,
active_user_count: json.data.active_user_count,
subscribers: json.data.subscribers,
created_utc: json.data.created_utc,
over18: json.data.over18,
description_html: json.data.description_html
}
resolve(obj)
} else {
fetch(`https://oauth.reddit.com/r/${subreddit}/about`, redditApiGETHeaders())
.then(result => {
if(result.status === 200) {
result.json()
.then(json => {
redis.setex(key, config.setexs.sidebar, JSON.stringify(json), (error) => {
if(error) {
console.error('Error setting the sidebar key to redis.', error)
return res.render('index', { json: null, user_preferences: req.cookies })
} else {
console.log('Fetched the sidebar from reddit API.');
(async () => {
let obj = {
title: json.data.title,
public_description_html: json.data.public_description_html,
active_user_count: json.data.active_user_count,
subscribers: json.data.subscribers,
created_utc: json.data.created_utc,
over18: json.data.over18,
description_html: json.data.description_html
}
resolve(obj)
})()
}
})
})
} else {
console.error(`Something went wrong while fetching data from reddit API. ${result.status} ${result.statusText}`)
console.error(config.reddit_api_error_text)
resolve(null)
}
}).catch(error => {
console.error('Error fetching the sidebar.', error)
resolve(null)
})
}
})
} else {
resolve(null)
}
})()
})
}
}