#!/usr/bin/env bash
# Yamada Hayao
# Twitter: @Hayao0819
# Email  : hayao@fascode.net
#
# (c) 2019-2021 Fascode Network.
#

set -e

#infofile="/run/archiso/bootmnt/alteriso-info"
infofile="${HOME}/Desktop/alteriso-info"
shellmode=false

_help() {
    echo "usage ${0} [options]"
    echo
    echo " General options:"
    echo "    -f | --file [path]  Specify the file to read"
    echo "    -s | --shell        Enable shell mode"
    echo "    -h | --help         This help message and exit."
}

# Argument analysis and processing
options="${@}"
opt_short="hf:s"
opt_long="help,file:,shell"
OPT=$(getopt -o ${opt_short} -l ${opt_long} -- "${@}")
if [[ ${?} != 0 ]]; then
    exit 1
fi

eval set -- "${OPT}"
unset OPT opt_short opt_long

while true; do
    case "${1}" in
        -s | --shell)
            shellmode=true
            shift 1
            ;;
        -f | --file)
            infofile="${2}"
            shift 2
            ;;
        -h | --help)
            _help
            shift 1
            exit 0
            ;;
        --)
            shift
            break
            ;;
        *)
            echo "Invalid argument '${1}'" >&2
            _help
            exit 1
            ;;
    esac
done


if [[ ! -f "${infofile}" ]]; then
    echo "${infofile} was not found." >&2
    exit 1
fi


if [[ "${shellmode}" = false ]]; then
    cat "${infofile}"
else
    # 項目を取得する
    items=()
    for _item in $(cat "${infofile}" | cut -d ':' -f 1 | sed 's/ *$//' |sed 's| \+|_|g' | tr '[:upper:]' '[:lower:]'); do
        items+=("$(echo "${_item}")")
    done
    unset _item

    # 値を取得する
    values=()
    PREV_IFS="${IFS}"
    IFS="
"
    values=($(cat "${infofile}" | cut -d ':' -f 2- | sed "s|^ ||g" | grep -v ^$))
    line_number=$(( "$(cat "${infofile}" 2> /dev/null | wc -l)" - 1 ))
    IFS="${PREV_IFS}"

    for line in $(seq 0 "${line_number}"); do
        echo "${items[${line}]}=\"${values[${line}]}\""
    done
fi