print("[SnakeCam] Initialisierung beginnt...")
from flask import Flask, render_template, Response, request, redirect
import cv2
import json
from datetime import datetime
print("[SnakeCam] Imports erfolgreich.")

app = Flask(__name__)

def gen_frames():
    cam = cv2.VideoCapture(0)
    if not cam.isOpened():
        print("[WARNUNG] Kamera konnte nicht geöffnet werden.")
        return

    try:
        while True:
            success, frame = cam.read()
            if not success:
                break
            ret, buffer = cv2.imencode('.jpg', frame)
            frame = buffer.tobytes()
            yield (b'--frame\r\n'
                   b'Content-Type: image/jpeg\r\n\r\n' + frame + b'\r\n')
    finally:
        cam.release()
        print("[info] Kamera wurde sauber freigegeben.")

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

@app.route('/video_feed')
def video_feed():
    return Response(gen_frames(), mimetype='multipart/x-mixed-replace; boundary=frame')

@app.route('/log_answer', methods=['POST'])
def log_answer():
    user_input = request.form.get('antwort', 'nichts gesagt')
    mood = request.form.get('mood', 'unspecified')
    gesture = request.form.get('gesture', 'none')
    timestamp = datetime.now().isoformat()

    log_entry = {
        'timestamp': timestamp,
        'antwort': user_input,
        'mood': mood,
        'gesture': gesture
    }

    with open("snake_log.jsonl", "a") as log_file:
        log_file.write(json.dumps(log_entry) + "\n")

    return redirect("/")


if __name__ == "__main__":
    print("[SnakeCam] Starte Flask Webserver ...")
    app.run(host='0.0.0.0', port=5000)