#!/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=inkscape"
    _display_wait_box "2"
    input_files=$(_get_files "par_type=file; par_select_mime='image/svg+xml|application/gzip'")
    output_dir=$(_get_output_dir "par_use_same_dir=true; par_validate_conflict=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=""

    # Run the main process.
    output_file=$(_get_output_filename "$input_file" "$output_dir" "par_extension_opt=replace; par_extension=eps")

    local inkscape_version=""
    local inkscape_version_old="1.0"
    inkscape_version=$(inkscape --version | cut -d " " -f 2)
    if [[ "$inkscape_version" == $(echo -e "$inkscape_version\n$inkscape_version_old" | sort -V | head -n1) ]]; then
        # Old Inkscape version.
        std_output=$(inkscape --without-gui --export-area-drawing --file="$input_file" --export-eps="$output_file" 2>&1)
    else
        # New Inkscape version.
        std_output=$(inkscape --export-area-drawing --export-filename="$output_file" -- "$input_file" 2>&1)
    fi

    _check_output "$?" "$std_output" "$input_file" "$output_file" || return 1
}

_main "$@"