"""Mock Keycloak client for development mode.

This module provides a mock Keycloak authentication client that bypasses
real Keycloak server authentication in development mode. It generates
token info based on dev-specific token formats.
"""

from app.infrastructure.auth.models import TokenInfo


class MockKeycloakClient:
    """Mock Keycloak client for development and testing.

        Bypasses real Keycloak server authentication. Parses dev-specific
    token formats to generate TokenInfo with configurable roles.

        Attributes:
            _settings: Application settings.

        Example:
            >>> client = MockKeycloakClient()
            >>> token_info = await client.introspect_token("dev-token-admin")
    """

    def __init__(self) -> None:
        """Initialize mock client."""
        pass

    async def introspect_token(self, token: str) -> TokenInfo:
        """Introspect token in dev mode.

                If token starts with 'dev-token-', parses role from suffix.
        Otherwise returns inactive token.

                Args:
                    token: Access token string.

                Returns:
                    TokenInfo with dev user data if dev token, inactive otherwise.
        """
        dev_users: dict[str, dict[str, str]] = {
            "dev-token-user": {
                "user_id": "dev-user",
                "username": "Dev User",
                "email": "dev.user@example.com",
                "role": "user",
            },
            "dev-token-user2": {
                "user_id": "dev-user2",
                "username": "Test User",
                "email": "test.user@example.com",
                "role": "user",
            },
            "dev-token-admin": {
                "user_id": "dev-admin",
                "username": "Dev Admin",
                "email": "dev.admin@example.com",
                "role": "admin",
            },
        }

        if token == "dev-token-guest":
            return TokenInfo(active=False)

        if token in dev_users:
            user = dev_users[token]
            return TokenInfo(
                active=True,
                user_id=user["user_id"],
                username=user["username"],
                email=user["email"],
                roles=[user["role"]],
            )

        return TokenInfo(active=False)