import os

from ..constants import PROJECTS_DIR
from ..connection import connect
from ..db_path import db_path
from .project_slug import build_slug


def list_games():
    """Scanne projects/ : structure par utilisateur (voir
    db/games/project_slug.py) — projects/<propriétaire>/<projet>/game.db,
    deux niveaux — plus le repli sur l'ancien rangement plat
    projects/<slug>/game.db pour tout slug pas encore migré (voir
    scripts/migrate_flat_project_slugs.py)."""
    games = []
    if not os.path.isdir(PROJECTS_DIR):
        return games
    for entry in sorted(os.listdir(PROJECTS_DIR)):
        entry_path = os.path.join(PROJECTS_DIR, entry)
        if not os.path.isdir(entry_path):
            continue
        if os.path.isfile(os.path.join(entry_path, "game.db")):
            # Repli : un ancien dossier plat porte directement game.db.
            _append_game(games, entry)
            continue
        for project_part in sorted(os.listdir(entry_path)):
            slug = build_slug(entry, project_part)
            if os.path.isfile(db_path(slug)):
                _append_game(games, slug)
    return games


def _append_game(games, slug):
    conn = connect(slug)
    row = conn.execute("SELECT value FROM _meta WHERE key = 'name'").fetchone()
    conn.close()
    games.append({"slug": slug, "name": row["value"] if row else slug})