import os
import subprocess
import shutil
import tkinter as tk
from tkinter import filedialog, messagebox

def process_videos():
    # GUI initialisieren und verstecken
    root = tk.Tk()
    root.withdraw()
    root.attributes('-topmost', True)

    # 1. Videos auswählen
    video_paths = filedialog.askopenfilenames(
        title="Wähle 9:16 Videos aus",
        filetypes=[("Video files", "*.mp4 *.mov *.m4v")]
    )
    if not video_paths: return

    # 2. Zielordner wählen
    output_dir = filedialog.askdirectory(title="Wo sollen die Dateien gespeichert werden?")
    if not output_dir: return

    # Pfad zu FFmpeg (bitte prüfen mit 'which ffmpeg')
    FFMPEG_PATH = '/opt/homebrew/bin/ffmpeg' 

    for path in video_paths:
        filename = os.path.basename(path)
        
        # A) ORIGINAL KOPIEREN
        original_dest = os.path.join(output_dir, filename)
        try:
            shutil.copy2(path, original_dest)
        except Exception as e:
            print(f"Fehler beim Kopieren: {e}")

        # B) 4:5 CROP ERSTELLEN
        new_filename = filename.replace("9x16", "4x5")
        
        if new_filename == filename:
            name_part, ext_part = os.path.splitext(filename)
            new_filename = f"{name_part}_4x5{ext_part}"
            
        # Variable einheitlich benennen:
        final_output_path = os.path.join(output_dir, new_filename)

        # Center Crop 4:5 mit Hardware-Beschleunigung
        crop_filter = "crop=iw:iw*1.25:0:(ih-out_h)/2"
        
        try:
            subprocess.run([
                FFMPEG_PATH, '-i', path,
                '-vf', crop_filter,
                '-c:v', 'h264_videotoolbox', '-b:v', '10M', 
                '-c:a', 'copy', '-y', 
                final_output_path # Hier war der Fehler (out_4_5 existierte nicht)
            ], check=True)
        except Exception as e:
            print(f"Fehler beim Croppen von {filename}: {e}")

    # 3. Finder öffnen und Abschlussmeldung
    subprocess.run(['open', output_dir])
    messagebox.showinfo("Erfolg", "Alle Videos wurden verarbeitet!")

if __name__ == "__main__":
    # Unterdrückt die Tk-Warnung im Terminal
    os.environ['TK_SILENCE_DEPRECATION'] = '1'
    process_videos()