# server/wsgi.py
import glob
import os
from flask import Flask, jsonify, send_from_directory, request
from sqlalchemy.orm import sessionmaker
from sqlalchemy import create_engine, and_
from models import Client, Base, Event

DB_USER = os.getenv("DB_USER")
DB_PASSWORD = os.getenv("DB_PASSWORD")
DB_HOST = os.getenv("DB_HOST")
DB_NAME = os.getenv("DB_NAME")

# Datenbank-Engine und Session anlegen (passe ggf. die DB-URL an)
DB_URL = f"mysql+pymysql://{DB_USER}:{DB_PASSWORD}@{DB_HOST}/{DB_NAME}"
engine = create_engine(DB_URL, echo=False)
Session = sessionmaker(bind=engine)

app = Flask(__name__)

@app.route("/health")
def health():
    return jsonify(status="ok")

# Optional: Test-Route
@app.route("/")
def index():
    return "Hello from Infoscreen‐API!"

# (Weitere Endpunkte, Blueprints, Datenbank-Initialisierung usw. kommen hierher)
@app.route("/screenshots/<uuid>")
def get_screenshot(uuid):
    """Liefert den aktuellen Screenshot für die angegebene UUID zurück."""
    print(f"Anfrage für Screenshot mit UUID: {uuid}")
    pattern = os.path.join("screenshots", f"{uuid}*.jpg")
    files = glob.glob(pattern)
    if not files:
        return jsonify({"error": "Screenshot not found"}), 404
    # Es gibt nur eine Datei pro UUID
    filename = os.path.basename(files[0])
    print(filename)
    print("Arbeitsverzeichnis:", os.getcwd())
    print("Suchmuster:", pattern)
    print("Gefundene Dateien:", files)
    return send_from_directory("screenshots", filename)

@app.route("/api/clients")
def get_clients():
    # from models import Client  # Import lokal, da im selben Container
    print("Abrufen der Clients aus der Datenbank...")
    session = Session()
    clients = session.query(Client).all()
    result = [
        {
            "uuid": c.uuid,
            "location": c.location,
            "hardware_hash": c.hardware_hash,
            "ip_address": c.ip_address,
            "last_alive": c.last_alive.isoformat() if c.last_alive else None
        }
        for c in clients
    ]
    session.close()
    return jsonify(result)

@app.route("/api/events")
def get_events():
    """
    Liefert Events für einen Zeitraum (start, end) als FullCalendar-kompatible Objekte.
    Query-Parameter: start, end (ISO-Format), optional: client_uuid
    """
    session = Session()
    start = request.args.get("start")
    end = request.args.get("end")
    client_uuid = request.args.get("client_uuid")
    query = session.query(Event).filter(Event.is_active == True)
    if start and end:
        query = query.filter(and_(Event.start < end, Event.end > start))
    if client_uuid:
        query = query.filter(Event.client_uuid == client_uuid)
    events = query.all()
    result = []
    for e in events:
        result.append({
            "id": str(e.id),
            "title": e.title,
            "start": e.start.isoformat() if e.start else None,
            "end": e.end.isoformat() if e.end else None,
            "allDay": False,
            "classNames": [e.event_type.value] if e.event_type else [],
            "extendedProps": {
                "description": e.description,
                "client_uuid": e.client_uuid,
                "event_type": e.event_type.value if e.event_type else None,
                "created_by": e.created_by,
                "updated_by": e.updated_by,
            }
        })
    session.close()
    return jsonify(result)

if __name__ == "__main__":
    app.run(host="0.0.0.0", port=8000, debug=True)