# -*- coding: utf-8 -*-
from flask import Flask, render_template, Response, request, redirect, url_for
import cv2
import json
from datetime import datetime
from gestures.gestures_debug_test import detect_hand_gesture

app = Flask(__name__)

# Kamera initialisieren
cam = cv2.VideoCapture(0)
cam.set(cv2.CAP_PROP_FRAME_WIDTH, 320)
cam.set(cv2.CAP_PROP_FRAME_HEIGHT, 240)

def gen_frames():
    while True:
        success, frame = cam.read()
        if not success:
            print("[error] Kein Kamerabild.")
            break

        # Optional spiegeln (für Selfie-Effekt)
        frame = cv2.flip(frame, 1)

        # Geste erkennen + ROI anzeigen
        gesture, roi_coords = detect_hand_gesture(frame)
        x, y, w, h = roi_coords

        # Rechteck einzeichnen
        cv2.rectangle(frame, (x, y), (x + w, y + h), (255, 0, 0), 2)
        cv2.putText(frame, f"Geste: {gesture}", (10, 30), cv2.FONT_HERSHEY_SIMPLEX, 0.6, (0, 255, 0), 2)

        # MJPEG-Streaming
        ret, buffer = cv2.imencode('.jpg', frame)
        frame_bytes = buffer.tobytes()
        yield (b'--frame\r\n'
               b'Content-Type: image/jpeg\r\n\r\n' + frame_bytes + b'\r\n')

@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():
    answer = request.form.get("antwort", "").strip()
    mood = request.form.get("mood", "neutral")
    gesture = request.form.get("gesture", "none")

    log_entry = {
        "timestamp": datetime.now().isoformat(),
        "antwort": answer,
        "mood": mood,
        "gesture": gesture
    }
    with open("snake_log.jsonl", "a") as logfile:
        logfile.write(json.dumps(log_entry) + "\n")
    print(f"[log] Eingeloggt: {log_entry}")
    return redirect(url_for('index'))

@app.route('/shutdown')
def shutdown():
    cam.release()
    print("[info] Kamera wurde sauber freigegeben.")
    return "Kamera freigegeben."

if __name__ == '__main__':
    print("Starte SnakeCam ...")
    app.run(host='0.0.0.0')