from pathlib import Path

import typer

from tht.cli.config_cmd import CONFIG_OPT
from tht.cli.schema_cmd import _load_config_or_exit
from tht.cli.session_cmd import load_session_or_exit, session_dir

datamart_app = typer.Typer(help="Fase 8 — generazione dbt del datamart (hook)")


@datamart_app.command("generate")
def generate_cmd(
    session: str = typer.Option(..., "--session", help="Id della sessione."),
    mode: str = typer.Option(
        ..., "--mode",
        help="Variante paziente: 'clear' (in chiaro) o 'pseudonymized' (mascherato).",
    ),
    config: Path = CONFIG_OPT,
) -> None:
    """Innesca la generazione dbt del datamart (Fase 8). Hook: stub non operativo."""
    from tht.cli.phase_cmd import require_phase_or_exit
    from tht.datamart import DATAMART_MODES, generate_dbt_datamart

    cfg = _load_config_or_exit(config)
    load_session_or_exit(cfg, session)
    if mode not in DATAMART_MODES:
        typer.secho(
            f"ERRORE: mode '{mode}' non valido. Valori: {', '.join(DATAMART_MODES)}",
            fg=typer.colors.RED, err=True,
        )
        raise typer.Exit(code=1)
    require_phase_or_exit(cfg, session, 8)
    try:
        generate_dbt_datamart(session_dir(cfg, session), mode)
    except NotImplementedError as e:
        typer.secho(
            f"NOTA: {e} (hook, mode={mode}). Nessuna azione eseguita.",
            fg=typer.colors.YELLOW,
        )
        raise typer.Exit(code=0)
    typer.secho(f"OK: dbt del datamart generato (mode={mode}).", fg=typer.colors.GREEN)