#!/usr/bin/env bash

# --- Configuration ---
directory="_cleaned"    # Use "." for current folder or set a specific path
ffmpeg_options=""       # Optional: Add extra flags here (usually not needed for metadata removal)

# Create the target directory
mkdir "$directory"

echo "Starting metadata removal in: $(pwd)"

# Loop through all files
for file in *; do
    # Skip directories
    [ -d "$file" ] && continue

    # Skip the script itself
    [[ "$file" == "$0" ]] && continue
    
    # Skip files that already have "_clean" suffix to avoid re-processing
    [[ "$file" == *_clean.* ]] && continue

    # Construct output filename: add "_clean" before the extension
    base_name="${file%.*}"
    extension="${file##*.}"
    output_file="${base_name}_clean.${extension}"

    echo "Cleaning: $file → $output_file"
    
    # Remove metadata: -map_metadata -1 removes all metadata, -c copy avoids re-encoding
    if ffmpeg -loglevel quiet -i "$file" -map_metadata -1 -c copy $ffmpeg_options "$directory/$output_file"; then
        echo "Done: $output_file"
    else
        echo "Error: Failed to clean $file"
    fi
done

echo "All done."