"""Validate shared constants match backend definitions."""
import json
from pathlib import Path

from models import ROLE_ADMIN, ROLE_REGULAR, InviteStatus


def validate_shared_constants() -> None:
    """
    Validate that shared/constants.json matches backend definitions.
    Raises ValueError if there's a mismatch.
    """
    constants_path = Path(__file__).parent.parent / "shared" / "constants.json"
    
    if not constants_path.exists():
        raise ValueError(f"Shared constants file not found: {constants_path}")
    
    with open(constants_path) as f:
        constants = json.load(f)
    
    # Validate roles
    expected_roles = {"ADMIN": ROLE_ADMIN, "REGULAR": ROLE_REGULAR}
    if constants.get("roles") != expected_roles:
        raise ValueError(
            f"Role mismatch in shared/constants.json. "
            f"Expected: {expected_roles}, Got: {constants.get('roles')}"
        )
    
    # Validate invite statuses
    expected_statuses = {s.name: s.value for s in InviteStatus}
    if constants.get("inviteStatuses") != expected_statuses:
        raise ValueError(
            f"Invite status mismatch in shared/constants.json. "
            f"Expected: {expected_statuses}, Got: {constants.get('inviteStatuses')}"
        )
    
    # Validate validation rules exist (structure check only)
    validation = constants.get("validation", {})
    required_fields = ["telegram", "signal", "nostrNpub"]
    for field in required_fields:
        if field not in validation:
            raise ValueError(f"Missing validation rules for '{field}' in shared/constants.json")


if __name__ == "__main__":
    validate_shared_constants()
    print("✓ Shared constants are valid")