from ..connection import connect
from ..quote_ident import quote_ident
from ..slugify import slugify
from .ensure_player_id_column import ensure_player_id_column
from .resolve_row_player_key import resolve_row_player_key, PLAYER_SHARED


def update_row_field(slug, definition, row_id, field_def, new_value, player_id=PLAYER_SHARED):
    """Met à jour UNE SEULE colonne d'une ligne existante — utilisé par les
    actions "Modifier une donnée" du mode jouable, qui ne doivent jamais
    écraser les autres champs de la ligne (contrairement à update_row, qui
    attend un formulaire complet). Filtre aussi par player_id (voir
    get_row.py)."""
    ensure_player_id_column(slug, definition["table_name"])
    key = resolve_row_player_key(definition, player_id)
    fname = slugify(field_def["name"]).replace("-", "_")
    col = f"{fname}_id" if field_def["type"] == "relation" else fname
    conn = connect(slug)
    conn.execute(
        f"UPDATE {definition['table_name']} SET {quote_ident(col)} = ? WHERE id = ? AND player_id = ?",
        (new_value, row_id, key),
    )
    conn.commit()
    conn.close()