# Copyright 2023 Oslo University Hospital
#
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# modification, are permitted provided that the following conditions are met:
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# 1. Redistributions of source code must retain the above copyright notice, this
# list of conditions and the following disclaimer.
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SYMLINK_TARGET="${EROOT}/etc/PlusServer/current-config.xml"
CONFIG_DIR="${EROOT}/etc/PlusServer"

find_targets() {
    local targets
    for file in "${CONFIG_DIR}"/*.xml; do
        local basename=$(basename "${file}" .xml)
        if [[ -e ${file} && ${file} != *~ && ${basename} != "current-config" ]]; then
            targets="${targets}\n${basename}"
        fi
    done

    echo -ne ${targets} | sort -u
}

do_list() {
    local n
    targets=( $(find_targets) )
    local current_target=$(basename "$(readlink "${SYMLINK_TARGET}")" .xml)

    write_list_start \
        "Available PlusServer XML configurations ($(highlight '*') is current):"

    for (( n = 0; n < ${#targets[@]}; ++n )); do
        if [[ "${targets[n]}" == "${current_target}" ]]; then
            targets[n]=$(highlight_marker "${targets[n]}")
        fi
    done

    write_numbered_list -m "(none found)" "${targets[@]}"

    return 0
}

do_set() {
    local target_number="${1}"
    [ -z "${target_number}" ] && die -q "You didn't specify any XML configuration to set"

    targets=( $(find_targets) )

    is_number "${target_number}" && \
        target=${targets[$(( ${target_number} - 1 ))]}

    [ -z "${target}" ] && \
        die -q "Target \"${1}\" doesn't appear to be valid!"

    rm -f "${SYMLINK_TARGET}"
    ln -s "${CONFIG_DIR}/${target}.xml" "${SYMLINK_TARGET}" || \
        die -q "Failed to create symlink from '${target}.xml' to '${SYMLINK_TARGET}'"
}