// message-handler.js async function callRahyanaAPI(userMessage) { const response = await fetch('https://rahyana.ir/api/v1/chat/completions', { method: 'POST', headers: { 'Authorization': `Bearer ${process.env.RAHYANA_API_KEY}`, 'Content-Type': 'application/json', }, body: JSON.stringify({ model: 'gpt-4o-mini', messages: [ { role: 'system', content: 'شما یک دستیار مفید و مودب هستید که فارسی پاسخ می‌دهد.' }, { role: 'user', content: userMessage }, ], max_tokens: 150, temperature: 0.7, }), }); if (!response.ok) throw new Error(`Rahyana API error: ${response.status}`); const data = await response.json(); return data.choices[0].message.content; } async function sendInstagramMessage(recipientId, text) { const res = await fetch('https://graph.facebook.com/v18.0/me/messages', { method: 'POST', headers: { 'Authorization': `Bearer ${process.env.PAGE_ACCESS_TOKEN}`, 'Content-Type': 'application/json', }, body: JSON.stringify({ recipient: { id: recipientId }, message: { text } }), }); if (!res.ok) throw new Error('Failed to send Instagram message'); } async function handleMessage(event) { const senderId = event?.sender?.id; const text = event?.message?.text; if (!text) return; try { const reply = await callRahyanaAPI(text); await sendInstagramMessage(senderId, reply); } catch (e) { await sendInstagramMessage(senderId, 'متأسفم، خطایی رخ داد.'); } }