Create app.py

app.py

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+from fastapi import FastAPI, Request
+from fastapi.middleware.cors import CORSMiddleware
+from fastapi.responses import JSONResponse
+import requests, os
+from datetime import datetime, date
+
+# =========================
+# CONFIG
+# =========================
+HF_MODEL = "google/mt5-small"
+HF_API_URL = f"https://api-inference.huggingface.co/models/{HF_MODEL}"
+HF_TOKEN = os.getenv("HF_TOKEN", "")
+
+SHOPIER_LINK = "https://shopier.com/42153760"
+FREE_DAILY_LIMIT = 30
+
+# =========================
+# APP
+# =========================
+app = FastAPI(title="ZenkaMind API")
+
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=["*"],
+    allow_methods=["*"],
+    allow_headers=["*"],
+)
+
+# =========================
+# SIMPLE MEMORY (RAM)
+# =========================
+USERS = {}
+
+def get_user(email):
+    today = date.today().isoformat()
+    if email not in USERS:
+        USERS[email] = {
+            "count": 0,
+            "date": today,
+            "premium": False
+        }
+    if USERS[email]["date"] != today:
+        USERS[email]["count"] = 0
+        USERS[email]["date"] = today
+    return USERS[email]
+
+# =========================
+# AI CALL
+# =========================
+def ask_ai(prompt: str):
+    headers = {}
+    if HF_TOKEN:
+        headers["Authorization"] = f"Bearer {HF_TOKEN}"
+
+    payload = {
+        "inputs": prompt,
+        "parameters": {
+            "max_length": 300,
+            "temperature": 0.6
+        }
+    }
+
+    r = requests.post(
+        HF_API_URL,
+        headers=headers,
+        json=payload,
+        timeout=20
+    )
+
+    if r.status_code != 200:
+        return None
+
+    data = r.json()
+    if isinstance(data, list) and len(data) > 0:
+        return data[0].get("generated_text", "").strip()
+
+    return None
+
+# =========================
+# PROMPT
+# =========================
+def build_prompt(user_message: str):
+    return f"""
+Sen ZenkaMind’sin.
+
+- Sadece Türkçe konuş.
+- Net, açık ve kararlı cevaplar ver.
+- Eğlence botu gibi davranma.
+- Kullanıcıyı geliştirmeyi hedefle.
+- Gereksiz uzatma yapma.
+- Yanlış bir şey sorulursa açıkça yanlış olduğunu söyle.
+
+Kullanıcı: {user_message}
+
+ZenkaMind:
+"""
+
+# =========================
+# ROUTES
+# =========================
+@app.get("/")
+async def root():
+    return {"status": "ZenkaMind API çalışıyor"}
+
+@app.get("/health")
+async def health():
+    return {
+        "status": "ok",
+        "model": HF_MODEL,
+        "time": datetime.now().isoformat()
+    }
+
+@app.post("/api/chat")
+async def chat(req: Request):
+    data = await req.json()
+    email = data.get("email", "").lower()
+    message = data.get("message", "").strip()
+
+    if not email or "@" not in email:
+        return JSONResponse(400, {"error": "Email gerekli"})
+
+    if not message:
+        return JSONResponse(400, {"error": "Mesaj boş"})
+
+    user = get_user(email)
+
+    if not user["premium"] and user["count"] >= FREE_DAILY_LIMIT:
+        return {
+            "response": f"Günlük limit doldu.\n💎 Premium: {SHOPIER_LINK}",
+            "status": "limit"
+        }
+
+    prompt = build_prompt(message)
+    answer = ask_ai(prompt)
+
+    if not answer:
+        return {
+            "response": "Sunucu yoğun. Lütfen biraz sonra tekrar deneyin.",
+            "status": "error"
+        }
+
+    user["count"] += 1
+
+    if not user["premium"]:
+        answer += f"\n\n💎 Premium ile limitsiz kullanım: {SHOPIER_LINK}"
+
+    return {
+        "response": answer,
+        "remaining": "unlimited" if user["premium"] else max(0, FREE_DAILY_LIMIT - user["count"])
+    }