import os

from flask import Flask
from flask_sqlalchemy import SQLAlchemy

db = SQLAlchemy()

# Die Templates/Static-Verzeichnisse liegen auf Repo-Ebene (neben dem app/ Paket),
# nicht innerhalb des Pakets. Daher relativ zur Repo-Wurzel (Ueberverzeichnis) aufloesen.
_REPO_ROOT = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))


def create_app():
    app = Flask(
        __name__,
        template_folder=os.path.join(_REPO_ROOT, "templates"),
        static_folder=os.path.join(_REPO_ROOT, "static"),
    )

    # Konfiguration aus Umgebungsvariablen (Coolify)
    app.config["SECRET_KEY"] = os.environ.get("SECRET_KEY", "dev-secret-key")
    app.config["MAX_ATTEMPTS"] = int(os.environ.get("MAX_ATTEMPTS", "10"))
    app.config["DAILY_RESET_UTC"] = int(os.environ.get("DAILY_RESET_UTC", "9"))

    db_host = os.environ.get("DB_HOST", "localhost")
    db_port = os.environ.get("DB_PORT", "5432")
    db_user = os.environ.get("DB_USER", "filmdle")
    db_password = os.environ.get("DB_PASSWORD", "")
    db_name = os.environ.get("DB_DATABASE", "filmdle")

    app.config["SQLALCHEMY_DATABASE_URI"] = (
        f"postgresql://{db_user}:{db_password}@{db_host}:{db_port}/{db_name}"
    )
    app.config["SQLALCHEMY_TRACK_MODIFICATIONS"] = False

    db.init_app(app)

    from . import routes  # noqa: F401

    app.register_blueprint(routes.bp)

    with app.app_context():
        db.create_all()
        # Seed (idempotent) beim Start, damit die App sofort funktioniert
        from .seed import seed_all

        seed_all()

    return app