# server.py
import os
import uuid
import subprocess
import flask
from flask_cors import CORS
from dotenv import load_dotenv
from livekit import api

load_dotenv()

LIVEKIT_URL = os.environ.get("LIVEKIT_URL")
LIVEKIT_API_KEY = os.environ.get("LIVEKIT_API_KEY")
LIVEKIT_API_SECRET = os.environ.get("LIVEKIT_API_SECRET")
ROOM_NAME = "rajesh-portfolio-room"

if not all([LIVEKIT_URL, LIVEKIT_API_KEY, LIVEKIT_API_SECRET]):
    raise EnvironmentError("LIVEKIT_URL, LIVEKIT_API_KEY, and LIVEKIT_API_SECRET must be set")

app = flask.Flask(__name__, template_folder="templates")
CORS(app, resources={r"/get-token": {"origins": "*"}})

@app.route("/")
def index():
    return flask.render_template("index.html")

@app.route("/get-token", methods=["GET"])
def get_token():
    identity = f"user-{uuid.uuid4()}"
    token = (
        api.AccessToken(LIVEKIT_API_KEY, LIVEKIT_API_SECRET)
        .with_identity(identity)
        .with_name(f"Visitor-{identity}")
        .with_grants(api.VideoGrants(room_join=True, room=ROOM_NAME))
    )
    return flask.jsonify({"token": token.to_jwt(), "livekitUrl": LIVEKIT_URL})

# Start agent as subprocess before Flask starts
agent_process = None

if __name__ == "__main__":
    print("=" * 60)
    print("Starting LiveKit Agent worker...")
    print("=" * 60)
    
    # Start agent as non-blocking subprocess
    agent_process = subprocess.Popen(
        ["python", "app.py"],
        stdout=subprocess.PIPE,
        stderr=subprocess.STDOUT,
        text=True,
        bufsize=1
    )
    
    print("[AGENT] Process started with PID:", agent_process.pid)
    print("=" * 60)
    print("Starting Flask server...")
    print("=" * 60)
    
    # Run Flask (this blocks)
    app.run(host="0.0.0.0", port=7860)