function randomBackground(backgrounds) {
    let background = selectRandom(backgrounds);
    console.log("Choosen random background image:", background);

    document.getElementById("background").style.backgroundImage = "url(https://i21k.de/emil/backgrounds/" + background + ")";
//    let div_height = document.getElementById("background").offsetHeight;
//    let half_div_height = (0 - div_height) / 2;
//    document.getElementById("background").style.backgroundPosition = "0% " + half_div_height.toString() + "px";
}

function selectRandom(array) {
    let choosen = array[Math.floor(Math.random() * array.length)];
    return choosen;
}

function copyText(text) {
    try {
        navigator.clipboard.writeText(text);
        console.log('Content copied to clipboard: "' + text + '"');
    } catch (error) {
        console.error('Failed to copy "' + text + '":', error);
    }
}

function strBetweenStrings(startStr, endStr, str) {
    pos = str.indexOf(startStr) + startStr.length;
    return str.substring(pos, str.indexOf(endStr, pos));
}

function getStringOfPageContent(url, callbackFunction) {
    $.get(url, function(data) {
        callbackFunction(data);
    });
};

function getFilesInFolder(pageContent) {  // Needs auto file indexing
    // console.log(pageContent);
    let contentArray = pageContent.split("\n");

    let files = [];

    for (let line in contentArray) {
        if (contentArray[line].includes("<li>")) {
            files.push(strBetweenStrings('"', '"', contentArray[line]));
        }
    }

    files.shift();
    // console.log(files);

    return files;
};

// getStringOfPageContent("backgrounds", getFilesInFolder)