const fs = require('fs');
if (fs.existsSync('chats_original_backup.php')) {
    let orig = fs.readFileSync('chats_original_backup.php', 'utf8');
    let curr = fs.readFileSync('chats.php', 'utf8');

    // 1. Restore Emoji CSS
    let emojiCssMatch = orig.match(/\/\* Emoji Picker \*\/[\s\S]*?\/\* Pin Banner \*\//);
    if(emojiCssMatch) {
        let emojiCss = emojiCssMatch[0].replace('/* Pin Banner */', '').trim();
        curr = curr.replace('/* Custom Context Menu */', emojiCss + '\n\n/* Custom Context Menu */');
    }

    // 2. Restore Emoji Button in HTML
    let emojiBtn = '<button class="icon-btn" id="btnEmoji" onclick="toggleEmoji()"><i class="mdi mdi-emoticon-outline"></i></button>';
    curr = curr.replace(/<input type="text" id="messageInput" placeholder="Ketik pesan..." onkeypress="handleEnter\(event\)">/, '$& \n                                    ' + emojiBtn);

    // 3. Restore Emoji Picker HTML
    let emojiHtmlMatch = orig.match(/<!-- Emoji Picker -->[\s\S]*?<!-- Forward Modal -->/);
    if (emojiHtmlMatch) {
        let emojiHtml = emojiHtmlMatch[0].replace('<!-- Forward Modal -->', '').trim();
        curr = curr.replace('<!-- Context Menu -->', emojiHtml + '\n\n<!-- Context Menu -->');
    }

    // 4. Restore Emoji JS Logic
    let emojiJsMatch = orig.match(/\/\/ ═══ EMOJI PICKER ═══[\s\S]*?\/\/ ═══ VOICE RECORDING ═══/);
    if (emojiJsMatch) {
         let emojiJs = emojiJsMatch[0].replace('// ═══ VOICE RECORDING ═══', '').trim();
         curr = curr.replace('// Initial load', emojiJs + '\n\n// Initial load');
    }
    
    // 5. Add call to renderEmojis in ready event
    curr = curr.replace(/loadContacts\(\);\s*setInterval/, "loadContacts();\n    renderEmojis('smileys');\n    setInterval");

    fs.writeFileSync('chats.php', curr);
    console.log('Emoji features restored!');
} else {
    console.log('Backup not found, cannot restore emojis easily.');
}