import os
import requests
import gradio as gr

# 🔐 Hugging Face API bağlantısı
API_URL = "/static-proxy?url=https%3A%2F%2Fapi-inference.huggingface.co%2Fmodels%2Fmistralai%2FMixtral-8x7B-Instruct-v0.1"
HF_TOKEN = os.getenv("HF_TOKEN")  # Hugging Face Secret olarak ekledin ya, burada çağrılıyor
HEADERS = {"Authorization": f"Bearer {HF_TOKEN}"}

# 💬 Chat fonksiyonu
def chat(message, history):
    history = history or []
    convo = [{"role": "system", "content": "You are ZenkaMind, a helpful Turkish AI assistant."}]

    for user, bot in history:
        convo.append({"role": "user", "content": user})
        convo.append({"role": "assistant", "content": bot})

    convo.append({"role": "user", "content": message})

    payload = {
        "inputs": convo,
        "parameters": {"max_new_tokens": 300, "temperature": 0.7},
        "options": {"wait_for_model": True},
    }

    try:
        r = requests.post(API_URL, headers=HEADERS, json=payload, timeout=60)
        data = r.json()

        if isinstance(data, list) and "generated_text" in data[0]:
            reply = data[0]["generated_text"]
        elif isinstance(data, dict) and "error" in data:
            reply = f"⚠️ Hata: {data['error']}"
        else:
            reply = "⚠️ Model boş yanıt döndürdü veya bağlantı kesildi."
    except Exception as e:
        reply = f"❌ Sunucu hatası: {str(e)}"

    history.append((message, reply))
    return history, history


# 🎨 Tema ve Arayüz
theme = gr.themes.Soft(
    primary_hue="blue",
    neutral_hue="slate",
).set(
    body_background_fill="#0f172a",
    block_background_fill="#1e293b",
    block_label_text_color="#38bdf8",
)

with gr.Blocks(theme=theme, title="ZenkaMind v12") as demo:
    gr.Markdown(
        """
        <h1 style="text-align:center;color:#38bdf8;">🧠 ZenkaMind v12</h1>
        <p style="text-align:center;color:#94a3b8;">
        Türkçe yapay zekâ sohbet asistanı — <strong>Mixtral 8x7B</strong> modeliyle çalışır.<br>
        © 2025 ZenkaMind Bilişim & Teknoloji
        </p>
        """
    )

    chatbot = gr.Chatbot(height=500, label="ZenkaMind Sohbet Ekranı")
    user_msg = gr.Textbox(
        placeholder="Mesajınızı yazın ve Enter’a basın...",
        show_label=False,
        autofocus=True,
    )
    send_btn = gr.Button("🚀 Gönder")
    clear_btn = gr.Button("🧹 Sohbeti Temizle")

    # Bağlantılar
    user_msg.submit(chat, [user_msg, chatbot], [chatbot, chatbot])
    send_btn.click(chat, [user_msg, chatbot], [chatbot, chatbot])
    clear_btn.click(lambda: None, None, chatbot, queue=False)

demo.launch()