#!/bin/bash
# example usage: edit_exif_move_media -O /home/James/Penguin/@media/Social\ Media/exif_media/ -f /home/James/Penguin/@media/Social\ Media/metadata.txt
IFS=$'\n'
# set -eo pipefail
usage() { echo "Usage: $0 [-a <audio output directory>] [-v <audio output directory>] [-p <photo output directory>] [-f <input file>]" 1>&2; exit 1; }

while getopts ":a:v:p:f:" o; do
    case "${o}" in
        a) a="${OPTARG}" ;; # audio output folder
        v) v="${OPTARG}" ;; # video output folder
        p) p="${OPTARG}" ;; # photo output folder
        f) f="${OPTARG}" ;; # metadata.txt file location
        *) usage;;
    esac
done    
# while IFS=';' read -r ts media msg_dir filepath media_ts people; do
#  exifunix -d "$people" -n "$filepath" -t "$media_ts" -O "$O"
#  echo "exifunix -d $people -n $filepath -t $media_ts -O $O"
# done < "$f"

process_line() {
    record="$1"
    audio_output="$2"
    video_output="$3"
    photo_output="$4"
    IFS=';' read ts media msg_dir filepath media_ts people <<< "$record"
    if [[ $media == "audio" ]]; then
        echo "Executing: exifunix -d \"$people\" -n \"$filepath\" -t \"$media_ts\" -O \"$audio_output\""
        exifunix -d "$people" -n "$filepath" -t "$media_ts" -O "$audio_output"
    elif [[ $media == "video" ]]; then
        echo "Executing: exifunix -d \"$people\" -n \"$filepath\" -t \"$media_ts\" -O \"$video_output\""
        exifunix -d "$people" -n "$filepath" -t "$media_ts" -O "$video_output"
    elif [[ $media == "photo" ]]; then
        echo "Executing: exifunix -d \"$people\" -n \"$filepath\" -t \"$media_ts\" -O \"$photo_output\""
        exifunix -d "$people" -n "$filepath" -t "$media_ts" -O "$photo_output"
    fi
}

export -f process_line

cat "$f" | parallel -P 12 -n 1 -d '\n' "process_line {} \"$a\" \"$v\" \"$p\" 2>/dev/null"