#!/usr/bin/env python3
"""
clip.py — Vse v enem: vzemi 16:9 video, izreži klip, reframe na 9:16, dodaj podnapise.

Primer:
  # Cel video → 9:16 z face tracking + slovenskimi podnapisi
  python3 clip.py input.mp4 reel.mp4 --lang sl

  # 30s klip od 1:20 dalje, blur ozadje, brez podnapisov
  python3 clip.py input.mp4 reel.mp4 --start 80 --duration 30 --mode blur --no-subs

  # Več klipov hkrati prek timestamp seznama
  python3 clip.py input.mp4 out_dir/ --clips "0:30-1:00,2:15-2:45,5:00-5:30" --lang sl
"""
import argparse
import shutil
import subprocess
import sys
import os
import tempfile
from pathlib import Path


def parse_ts(s):
    """'1:23' → 83.0, '1:23.5' → 83.5, '90' → 90.0"""
    s = s.strip()
    if ":" in s:
        parts = s.split(":")
        if len(parts) == 2:
            return int(parts[0]) * 60 + float(parts[1])
        if len(parts) == 3:
            return int(parts[0]) * 3600 + int(parts[1]) * 60 + float(parts[2])
    return float(s)


def parse_clips(spec):
    """'0:30-1:00,2:15-2:45' → [(30.0, 60.0), (135.0, 165.0)]"""
    out = []
    for c in spec.split(","):
        a, b = c.split("-")
        out.append((parse_ts(a), parse_ts(b)))
    return out


SCRIPT_DIR = Path(__file__).parent


def run_clip(src, dst, start, duration, mode, lang, model, style, no_subs, quality,
             fade_in=0.0, fade_out=0.0, srt_path=None):
    """Naredi en klip src → dst."""
    print(f"🎯 run_clip args: src={src}, dst={dst}, start={start!r}, duration={duration!r}, "
          f"mode={mode}, fade_in={fade_in}, fade_out={fade_out}, "
          f"srt={'yes' if srt_path else 'no'}", file=sys.stderr)
    tmp = tempfile.mkdtemp(prefix="reel_")
    try:
        reframed = Path(tmp) / "reframed.mp4"

        # 1. Reframe (in trim hkrati)
        cmd = [
            "python3", str(SCRIPT_DIR / "reframe.py"),
            str(src), str(reframed),
            "--mode", mode,
            "--quality", quality,
        ]
        if start is not None:
            cmd += ["--start", str(start)]
        if duration is not None:
            cmd += ["--duration", str(duration)]
        if fade_in > 0:
            cmd += ["--fade-in", str(fade_in)]
        if fade_out > 0:
            cmd += ["--fade-out", str(fade_out)]
        print(f"🔧 REFRAME CMD: {' '.join(cmd)}", file=sys.stderr)
        print(f"\n▶  Klip: {dst.name}")
        r = subprocess.run(cmd)
        if r.returncode != 0:
            print(f"❌ Reframe napaka pri {dst.name}", file=sys.stderr)
            return False

        # 2. Subtitles (opcijsko)
        if no_subs:
            shutil.move(str(reframed), str(dst))
        else:
            cmd = [
                "python3", str(SCRIPT_DIR / "subtitle.py"),
                str(reframed), str(dst),
                "--model", model,
                "--style", style,
            ]
            if lang:
                cmd += ["--lang", lang]
            if srt_path:
                cmd += ["--srt", str(srt_path)]
            r = subprocess.run(cmd)
            if r.returncode != 0:
                print(f"❌ Subtitle napaka — shranim brez", file=sys.stderr)
                shutil.move(str(reframed), str(dst))
        return True
    finally:
        shutil.rmtree(tmp, ignore_errors=True)


def main():
    ap = argparse.ArgumentParser()
    ap.add_argument("input")
    ap.add_argument("output", help="Datoteka (en klip) ali mapa (več klipov)")
    ap.add_argument("--start", type=str, default=None, help="Začetek (s ali mm:ss)")
    ap.add_argument("--duration", type=float, default=None, help="Trajanje v s")
    ap.add_argument("--fade-in", type=float, default=0.0, help="Audio fade in (s)")
    ap.add_argument("--fade-out", type=float, default=0.0, help="Audio fade out (s)")
    ap.add_argument("--clips", type=str, default=None,
                    help="Več klipov: '0:30-1:00,2:15-2:45'")
    ap.add_argument("--mode", default="track", choices=["track", "center", "blur"])
    ap.add_argument("--lang", default=None, help="sl, de, en, ... (privzeto auto)")
    ap.add_argument("--model", default="large-v3",
                    choices=["tiny", "base", "small", "medium", "large-v3"])
    ap.add_argument("--style", default="reels", choices=["reels", "yellow", "minimal"])
    ap.add_argument("--no-subs", action="store_true")
    ap.add_argument("--quality", default="medium", choices=["fast", "medium", "high"])
    ap.add_argument("--srt", default=None, help="Že-pripravljen SRT (preskoči Whisper)")
    args = ap.parse_args()

    src = Path(args.input)
    if not src.exists():
        print(f"❌ {src} ne obstaja", file=sys.stderr)
        sys.exit(1)

    if args.clips:
        clips = parse_clips(args.clips)
        out_dir = Path(args.output)
        out_dir.mkdir(parents=True, exist_ok=True)
        ok = 0
        for i, (s, e) in enumerate(clips, 1):
            dst = out_dir / f"reel_{i:02d}.mp4"
            if run_clip(src, dst, s, e - s, args.mode, args.lang, args.model,
                        args.style, args.no_subs, args.quality):
                ok += 1
        print(f"\n✅ Dokončano: {ok}/{len(clips)} klipov v {out_dir}")
    else:
        start = parse_ts(args.start) if args.start else None
        run_clip(src, Path(args.output), start, args.duration, args.mode,
                 args.lang, args.model, args.style, args.no_subs, args.quality,
                 fade_in=args.fade_in, fade_out=args.fade_out,
                 srt_path=args.srt)


if __name__ == "__main__":
    main()