# app.py
import os
import json
import logging
from flask import Flask, render_template, redirect, url_for, send_from_directory, request, jsonify

app = Flask(__name__)

# Konfiguration
app.config['CONFIG_DIR'] = 'configs'
os.makedirs(app.config['CONFIG_DIR'], exist_ok=True)

# Logging
logging.basicConfig(
    filename='app.log',
    level=logging.INFO,
    format='%(asctime)s | %(levelname)-8s | %(message)s',
    datefmt='%Y-%m-%d %H:%M:%S'
)

logger = logging.getLogger(__name__)

def load_configs():
    """Liest alle .json Dateien aus dem configs-Ordner"""
    configs = []
    if not os.path.exists(app.config['CONFIG_DIR']):
        return configs
    
    for filename in os.listdir(app.config['CONFIG_DIR']):
        if filename.lower().endswith('.json'):
            path = os.path.join(app.config['CONFIG_DIR'], filename)
            try:
                with open(path, 'r', encoding='utf-8') as f:
                    data = json.load(f)
                    data['filename'] = filename
                    # Optional: name fallback, falls nicht vorhanden
                    data.setdefault('name', filename.replace('.json', '').replace('_', ' ').title())
                    configs.append(data)
            except Exception as e:
                logger.error(f"Fehler beim Laden von {filename}: {e}")
    return sorted(configs, key=lambda x: x.get('name', ''))


@app.route('/')
def index():
    configs = load_configs()
    return render_template('index.html', configs=configs)


@app.route('/load_config/<filename>')
def load_config(filename):
    # Später: Config in Session speichern oder global (für Entwicklung erstmal redirect)
    # Hier nur redirect zur Steuerseite – echte Logik kommt später
    path = os.path.join(app.config['CONFIG_DIR'], filename)
    if not os.path.exists(path):
        return "Konfigurationsdatei nicht gefunden", 404
    
    # Für den Moment nur redirect – später speichern wir current_config
    return redirect(url_for('control_page', filename=filename))


@app.route('/control/<filename>')
def control_page(filename):
    # Später: Config laden und übergeben
    # Aktuell nur Dummy-Template
    return render_template('control.html', filename=filename)


@app.route('/configs/<path:filename>')
def serve_config_file(filename):
    """Bilder und andere Dateien aus configs/ ausliefern"""
    return send_from_directory(app.config['CONFIG_DIR'], filename)


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


if __name__ == '__main__':
    app.run(host='0.0.0.0', port=5050, debug=True)