"""
Entry point for the backend (no GUI).

For now, this verifies configuration + database setup and can run a one-off sync.
Future iterations will wire up scheduler and a GUI.
"""

from __future__ import annotations

import asyncio
from pathlib import Path

from .config.settings import Settings
from .core.database.db import Database
from .core.sync.executor import ActionExecutor
from .core.sync.service import SyncService
from .core.utils.deps import DependencyError
from .core.utils.yt import extract_playlist_id


def bootstrap(db_path: Path | None = None) -> None:
    settings = Settings()
    db = Database((db_path or Path("db/app.db")).resolve())
    service = SyncService(db)
    executor = ActionExecutor(db)

    # Iterate configured playlists and compute actions (no execution yet)
    for pl in settings.playlists:
        try:
            actions = service.sync_from_config(pl)
            # Apply actions now
            if actions:
                print(f"Applying {len(actions)} actions for: {pl.get('url')}")
                # Summarize before applying
                counts = {}
                for a in actions:
                    counts[a.type] = counts.get(a.type, 0) + 1
                summary = ", ".join(f"{k.name}:{v}" for k, v in counts.items())
                print(f"Plan → {summary}")
                # Execute
                try:
                    asyncio.run(executor.execute(actions, pl))
                except DependencyError as e:
                    print(f"ERROR: {e}")
                    continue
                # Post summary (no DB readback yet)
                pid = extract_playlist_id(pl.get('url', '')) or pl.get('url', '')
                db.set_playlist_last_sync(pid)
                print("Applied actions.")
            else:
                print(f"No actions needed for: {pl.get('url')}")
        except Exception as exc:  # noqa: BLE001 - keep bootstrap resilient during early dev
            print(f"Failed to sync playlist {pl.get('url')}: {exc}")


if __name__ == "__main__":
    bootstrap()