mastodon-meme-bot/node_app/mastodonMemeBot.js

import {MastodonHandler} from "./mastodonHandler.js";
import {MemeHandler} from "./memeHandler.js";
import {getStat} from "./JSONdataStore.js";

export class mastodonMemeBot {
    constructor(config) {
        this.allowedMedia = config.allowedMedia;
        this.memeHandler = new MemeHandler(config.memeAPI, config.subreddits, config.allowedMedia);
        this.client = new MastodonHandler({
            api_url: `${config.baseUrl}/api/v1/`,
            access_token: config.accessToken,
        });
    }
    postRandomMeme(callback = () => {}) {
        this.memeHandler.getRandomMeme(sub => {
            let status = `"${sub.title}"\n${sub.text}\nby ${sub.author}`;
            if (!this.allowedMedia.find(type => type === sub.url.split(/[.]+/).pop())) {
                console.log("no valid media, fetching new sub");
                this.postRandomMeme(callback);
                return;
            }
            let filepath = `./media/${sub.url.split(/[/]+/).pop()}`;
            if (getStat(filepath)) {
                console.log("post already exists, fetching new sub");
                this.postRandomMeme(callback);
                return;
            }
            this.memeHandler.downloadMedia(sub.url, filepath, () => {
                this.client.postMedia(status, filepath, 5, () => this.postRandomMeme(), callback);
            })
        })
    }
    setFullInterval(minutes) {
        let currentTime = new Date();
        let firstTime = (minutes - currentTime.getMinutes() % minutes)*60 - currentTime.getSeconds();
        setTimeout( () => {
            this.postRandomMeme();
            setInterval(() => this.postRandomMeme(), minutes * 60*1000);
        }, firstTime * 1000);
    }
}