"""Merge missing-merge duplikatów: ten sam performer + identyczny znormalizowany tytuł
+ identyczna długość (co do sekundy).

Logika w app/scheduler/title_duration_dedup.py (współdzielona ze schedulerem
`_job_title_duration_dedup`). Ten plik to cienki CLI wrapper.

Użycie (kontener worker):
  python scripts/merge_exact_title_duration.py [PERFORMER_ID] [--commit] [--playback-only]
Bez PERFORMER_ID = wszyscy (global). Bez --commit = dry-run (wypisuje pary).
"""
from __future__ import annotations

import sys

from app.scheduler.title_duration_dedup import _groups, run_title_duration_dedup


def main() -> None:
    commit = "--commit" in sys.argv
    playback_only = "--playback-only" in sys.argv
    pid = None
    for a in sys.argv[1:]:
        if not a.startswith("--") and len(a) >= 32:
            pid = a

    if not commit:
        groups = _groups(pid, playback_only)
        pairs = sum(len(g) - 1 for g in groups)
        print(
            f"performer={pid or 'ALL'} playback_only={playback_only} "
            f"groups={len(groups)} merges={pairs} commit=False",
            flush=True,
        )
        for g in groups:
            for drop in g[1:]:
                print(f"  [dry] keep {g[0][:8]} <- drop {drop[:8]}")
        print(f"DONE merged=0/{pairs} errors=0", flush=True)
        return

    res = run_title_duration_dedup(pid=pid, playback_only=playback_only, commit=True)
    print(
        f"DONE merged={res['merged']}/{res['merges']} errors={res['errors']} "
        f"groups={res['groups']}",
        flush=True,
    )


if __name__ == "__main__":
    main()