import getpass

from app.config_model import AppConfig, InitialSetupData
from app.security import hash_password


class SetupWizard:
    @staticmethod
    def _ask_non_empty(prompt: str) -> str:
        while True:
            value = input(prompt).strip()
            if value:
                return value
            print("Eingabe darf nicht leer sein.")

    @staticmethod
    def _ask_port(prompt: str) -> int:
        while True:
            raw = input(prompt).strip()
            try:
                port = int(raw)
                if 1 <= port <= 65535:
                    return port
            except ValueError:
                pass
            print("Bitte eine gueltige Portnummer zwischen 1 und 65535 eingeben.")

    @staticmethod
    def _ask_debug(prompt: str) -> bool:
        while True:
            raw = input(prompt).strip().lower()
            if raw in {"true", "false"}:
                return raw == "true"
            print("Bitte nur true oder false eingeben.")

    @staticmethod
    def _ask_password() -> str:
        while True:
            password = getpass.getpass("Adminpassword: ")
            confirm = getpass.getpass("Adminpassword bestaetigen: ")
            if not password:
                print("Passwort darf nicht leer sein.")
                continue
            if password != confirm:
                print("Passwoerter stimmen nicht ueberein.")
                continue
            return password

    def collect_initial(self) -> InitialSetupData:
        print("\n[SETUP] Initiale Konfiguration erforderlich.")

        ip = self._ask_non_empty("IP-Adresse: ")
        port = self._ask_port("Port: ")
        debug = self._ask_debug("Debug (true/false): ")
        adminuser = self._ask_non_empty("Adminuser: ")
        password_hash = hash_password(self._ask_password())

        return InitialSetupData(
            config=AppConfig(
                ip=ip,
                port=port,
                debug=debug,
            ),
            admin_username=adminuser,
            admin_password_hash=password_hash,
        )

    def collect_admin_user(self) -> tuple[str, str]:
        print("\n[SETUP] Es wurde kein Benutzer gefunden. Bitte Admin anlegen.")
        adminuser = self._ask_non_empty("Adminuser: ")
        password_hash = hash_password(self._ask_password())
        return adminuser, password_hash