from flask import Flask
from .config import load_config
from .services.vault import Vault


def create_app(config_override=None) -> Flask:
    app = Flask(
        __name__,
        static_folder="static",
        template_folder="templates",
    )

    cfg = config_override or load_config()
    app.config["KB_VAULT_PATH"] = cfg.VAULT_PATH
    app.config["SECRET_KEY"] = cfg.SECRET_KEY
    app.config["DEBUG"] = cfg.DEBUG

    # Ensure vault structure early if configured
    if cfg.VAULT_PATH:
        try:
            Vault(cfg.VAULT_PATH).ensure_structure()
        except Exception:
            # Avoid crashing on startup; routes can surface errors as needed
            pass

    # Register blueprints
    from .routes.home import bp as home_bp
    from .routes.notes import bp as notes_bp
    app.register_blueprint(home_bp)
    app.register_blueprint(notes_bp)

    @app.get("/healthz")
    def healthz():
        return {"status": "ok", "vault": app.config.get("KB_VAULT_PATH")}, 200

    return app