#!/usr/bin/env node

const fs = require("fs");
const css = require("css");

fs.readFile("/app/chromecast.css", "utf-8", (err, data) => {
    const ast = css.parse(data);
    for(const rule of ast.stylesheet.rules) {
        const decls = [];
        if(Symbol.iterator in Object(rule.declarations)) {
            for(const decl of rule.declarations) {
                const isNotUrl = !(decl.value.toLowerCase().startsWith("url"));
                const isNotContent = !(decl.property.toLowerCase() == "content");
                if(isNotContent && isNotUrl) {
                    decls.push(decl);
                }
            }
            rule.declarations = decls;
        }
    }
    fs.appendFile("/app/style.css", css.stringify(ast, {"compress": true}), (err) => {
        if(err !== null) {
            console.log(err);
        }
    });
});