#!/usr/bin/env bash

# Source the script 'common-functions.sh'.
SCRIPT_DIR=$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" &>/dev/null && pwd)
ROOT_DIR=$(grep --only-matching "^.*scripts[^/]*" <<<"$SCRIPT_DIR")
source "$ROOT_DIR/common-functions.sh"

_main() {
    local input_files=""
    local output_dir=""

    # Execute initial checks.
    _check_dependencies "
        command=genisoimage; pkg_manager=apt |
        command=genisoimage; pkg_manager=dnf |
        command=genisoimage; pkg_manager=pacman; package=cdrtools |
        command=mkisofs; pkg_manager=zypper"
    _display_wait_box "2"
    input_files=$(_get_files "par_type=all")
    output_dir=$(_get_output_dir "par_use_same_dir=true")

    # Execute the function '_main_task' for each file in parallel.
    _run_task_parallel "$input_files" "$output_dir"
    _display_result_box "$output_dir"
}

_main_task() {
    local input_file=$1
    local output_dir=$2
    local output_file=""
    local std_output=""
    local volume_id=""
    volume_id=$(basename -- "$input_file" | cut -c 1-32 2>/dev/null)

    # Run the main process.
    output_file=$(_get_output_filename "$input_file" "$output_dir" "par_extension_opt=replace; par_extension=iso")
    if _command_exists "mkisofs"; then
        std_output=$(mkisofs -input-charset "utf-8" -o "$output_file" -V "$volume_id" -A "" -sysid "" -J -R "$input_file" 2>&1)
    elif _command_exists "genisoimage"; then
        std_output=$(genisoimage -input-charset "utf-8" -o "$output_file" -V "$volume_id" -A "" -sysid "" -J -R "$input_file" 2>&1)
    fi
    _check_output "$?" "$std_output" "$input_file" "$output_file" || return 1
}

_main "$@"