from __future__ import annotations

import uvicorn

from tenant_engine.app import create_app
from tenant_engine.config import Settings
from tenant_engine.postgres_store import PostgresTenantStore
from tenant_engine.sqlite_store import SQLiteTenantStore
from tenant_engine.store import TenantStore


def main() -> None:
    settings = Settings.from_env()
    store = _build_store(settings)
    uvicorn.run(create_app(settings=settings, store=store), host=settings.host, port=settings.port)


def _build_store(settings: Settings) -> TenantStore | None:
    if settings.database_path and settings.database_url_file:
        raise RuntimeError(
            "refusing ambiguous store configuration: set only one of "
            "TENANT_ENGINE_DATABASE_PATH or TENANT_ENGINE_DATABASE_URL_FILE"
        )
    if settings.database_url_file:
        return PostgresTenantStore(settings.database_url_file)
    if settings.database_path:
        return SQLiteTenantStore(settings.database_path)
    return None


if __name__ == "__main__":
    main()