console.log('[XAI Background] ✅ Service worker started');

// ⚠️ SỬA ENDPOINT & KEY
const API_URL = 'https://punch-scientific-electrical-antibodies.trycloudflare.com/content-writer/comment';
const API_KEY = 'YOUR_API_KEY_HERE';

// ===== MENU =====
chrome.runtime.onInstalled.addListener(() => {
    chrome.contextMenus.create({
        id: 'writeComment',
        title: '✍️ Viết comment',
        contexts: ['all'],
        documentUrlPatterns: ['https://x.com/*']
    });
});

chrome.contextMenus.onClicked.addListener(async (info, tab) => {
    if (info.menuItemId !== 'writeComment' || !tab?.id) return;
    try {
        await chrome.tabs.sendMessage(tab.id, { action: 'OPEN_FORM' });
    } catch (err) {
        console.error('[XAI Background] ❌ Không gọi được content script:', err.message);
    }
});

// ===== HANDLE GENERATE =====
chrome.runtime.onMessage.addListener((request, sender) => {
    if (request.action === 'GENERATE_COMMENT') {
        callYourAPI(request.data, sender.tab.id);
        return true;
    }
});

async function callYourAPI({ text, lang, tone, angle }, tabId) {
    const payload = { originalPost: text, language:lang, tone, angle };
    console.log('[XAI Background] ⏳ Gọi API:', API_URL);
    console.log('[XAI Background] 📤 Payload:', JSON.stringify(payload, null, 2));

    try {
        const res = await fetch(API_URL, {
            method: 'POST',
            headers: {
                'Content-Type': 'application/json',
                'Authorization': `Bearer ${API_KEY}`
            },
            body: JSON.stringify(payload)
        });

        const data = await res.json();
        console.log('[XAI Background] 📥 Status:', res.status, '| JSON:', data);

        if (!res.ok) throw new Error(`HTTP ${res.status}`);

        const comment = data.comment || data.text || JSON.stringify(data);
        await chrome.tabs.sendMessage(tabId, { action: 'SHOW_RESULT', comment });
    } catch (err) {
        console.error('[XAI Background] ❌ Lỗi:', err.message);
        await chrome.tabs.sendMessage(tabId, { action: 'SHOW_ERROR', error: err.message });
    }
}