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# ==========================================================
# KC ROBOT AI - APP.PY (V2.0 MAX FINAL)
# Cloud AI Robot with Gemini 2.5 Flash + ESP32 + Telegram
# ==========================================================
from flask import Flask, request, jsonify, render_template_string
from google import genai
import requests
import os
import time
from gtts import gTTS
from langdetect import detect
import tempfile
import base64
# ==========================================================
# CONFIGURATION
# ==========================================================
# Load environment variables from secrets (Cloud Run or Hugging Face)
GEMINI_API_KEY = os.getenv("GEMINI_API_KEY")
GEMINI_MODEL = os.getenv("GEMINI_MODEL", "gemini-2.5-flash")
TELEGRAM_TOKEN = os.getenv("TELEGRAM_TOKEN")
TELEGRAM_CHAT_ID = os.getenv("TELEGRAM_CHAT_ID")
# Create Flask app
app = Flask(__name__)
# ==========================================================
# SETUP GEMINI CLIENT
# ==========================================================
if not GEMINI_API_KEY:
print("❌ ERROR: No Gemini API Key found. Please add GEMINI_API_KEY in Secrets.")
client = None
else:
client = genai.Client(api_key=GEMINI_API_KEY)
# ==========================================================
# TELEGRAM UTILITIES
# ==========================================================
def send_telegram_message(text):
if not TELEGRAM_TOKEN or not TELEGRAM_CHAT_ID:
print("⚠️ Telegram not configured.")
return
url = f"https://api.telegram.org/bot{TELEGRAM_TOKEN}/sendMessage"
payload = {"chat_id": TELEGRAM_CHAT_ID, "text": text}
try:
requests.post(url, json=payload, timeout=5)
except Exception as e:
print("Telegram Error:", e)
# ==========================================================
# GEMINI AI RESPONSE
# ==========================================================
def ask_gemini(prompt: str):
if not client:
return "⚠️ Gemini API key missing. Please configure in Secrets."
try:
response = client.models.generate_content(
model=GEMINI_MODEL,
contents=prompt
)
if hasattr(response, "text"):
return response.text.strip()
elif "text" in response:
return response["text"].strip()
else:
return "⚠️ No response text from Gemini."
except Exception as e:
print("Gemini Error:", e)
return f"⚠️ Gemini Error: {e}"
# ==========================================================
# LANGUAGE DETECTION & TTS
# ==========================================================
def text_to_speech(text):
try:
lang = detect(text)
if lang not in ["vi", "en"]:
lang = "en"
tts = gTTS(text=text, lang=lang)
tmp = tempfile.NamedTemporaryFile(delete=False, suffix=".mp3")
tts.save(tmp.name)
with open(tmp.name, "rb") as f:
audio_b64 = base64.b64encode(f.read()).decode("utf-8")
os.unlink(tmp.name)
return audio_b64
except Exception as e:
print("TTS Error:", e)
return None
# ==========================================================
# SIMPLE HTML INTERFACE (for testing)
# ==========================================================
HTML_PAGE = """
<!DOCTYPE html>
<html>
<head>
<title>KC Robot AI v2.0</title>
<style>
body { font-family: Arial; text-align: center; background-color: #101010; color: white; }
input, button { padding: 10px; font-size: 16px; margin: 5px; }
#chat { max-width: 700px; margin: auto; text-align: left; background: #202020; padding: 20px; border-radius: 10px; }
.msg-user { color: #4af; }
.msg-bot { color: #fa4; margin-left: 20px; }
audio { margin-top: 10px; }
</style>
</head>
<body>
<h1>🤖 KC Robot AI v2.0 MAX FINAL</h1>
<div id="chat"></div>
<br>
<input id="user_input" placeholder="Nói gì đó..." style="width:60%">
<button onclick="sendMessage()">Gửi</button>
<script>
async function sendMessage() {
const input = document.getElementById("user_input").value;
if (!input) return;
const chat = document.getElementById("chat");
chat.innerHTML += `<div class='msg-user'><b>Bạn:</b> ${input}</div>`;
document.getElementById("user_input").value = "";
const res = await fetch("/api/chat", {
method: "POST",
headers: {"Content-Type": "application/json"},
body: JSON.stringify({message: input})
});
const data = await res.json();
chat.innerHTML += `<div class='msg-bot'><b>Robot:</b> ${data.reply}</div>`;
if (data.audio) {
const audio = document.createElement("audio");
audio.src = "data:audio/mp3;base64," + data.audio;
audio.controls = true;
chat.appendChild(audio);
}
chat.scrollTop = chat.scrollHeight;
}
</script>
</body>
</html>
"""
@app.route("/")
def home():
return render_template_string(HTML_PAGE)
# ==========================================================
# API ENDPOINTS
# ==========================================================
@app.route("/api/chat", methods=["POST"])
def api_chat():
data = request.get_json()
if not data or "message" not in data:
return jsonify({"error": "Missing 'message'"}), 400
user_message = data["message"]
print(f"🧠 User said: {user_message}")
send_telegram_message(f"User: {user_message}")
ai_reply = ask_gemini(user_message)
send_telegram_message(f"Robot: {ai_reply}")
audio_b64 = text_to_speech(ai_reply)
return jsonify({"reply": ai_reply, "audio": audio_b64})
# ESP32 sensor endpoint
@app.route("/api/sensor", methods=["POST"])
def sensor_data():
data = request.get_json()
if not data:
return jsonify({"error": "No data"}), 400
msg = f"👁️ ESP32 Sensor update: {data}"
send_telegram_message(msg)
return jsonify({"status": "received"})
# Health check
@app.route("/ping")
def ping():
return jsonify({"status": "ok", "model": GEMINI_MODEL})
# ==========================================================
# MAIN ENTRY POINT
# ==========================================================
if __name__ == "__main__":
port = int(os.getenv("PORT", 8080))
print(f"🚀 KC Robot AI v2.0 running on port {port}")
app.run(host="0.0.0.0", port=port)
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