#!/usr/bin/env bash

# ``upgrade-keystone``

function get_new_values {
    new_values=()
    for i in $1; do
        if [[ "$i" != "$2" ]]; then
            new_values+="$i "
        fi
    done
    echo ${new_values[*]}

}

function configure_keystone_upgrade {
    local xtrace
    xtrace=$(set +o | grep xtrace)
    set -o xtrace

    # Remove XmlBodyMiddleware from the keystone-paste.ini file. All
    # XmlBodyMiddleware has been deprecated in Keystone for a year and has been
    # removed in Kilo. These options should be removed from the
    # Kilo keystone-paste.ini file when testing upgrades to Kilo from previous
    # releases.
    sed -i '/filter:xml_body/d' $KEYSTONE_PASTE_INI
    sed -i '/keystone.middleware:XmlBodyMiddleware.factory/d' $KEYSTONE_PASTE_INI
    sed -i '/filter:xml_body_v2/d' $KEYSTONE_PASTE_INI
    sed -i '/keystone.middleware:XmlBodyMiddlewareV2.factory/d' $KEYSTONE_PASTE_INI
    sed -i '/filter:xml_body_v3/d' $KEYSTONE_PASTE_INI
    sed -i '/keystone.middleware:XmlBodyMiddlewareV3.factory/d' $KEYSTONE_PASTE_INI

    # Take "xml_body_v2" out of the public_api pipeline
    values="$(iniget $KEYSTONE_PASTE_INI pipeline:public_api pipeline)"
    public_api_values="$(get_new_values "$values" xml_body_v2)"
    iniset $KEYSTONE_PASTE_INI pipeline:public_api pipeline "$public_api_values"

    # Take "xml_body_v2" out of the admin_api pipeline
    values="$(iniget $KEYSTONE_PASTE_INI pipeline:admin_api pipeline)"
    admin_api_values="$(get_new_values "$values" xml_body_v2)"
    iniset $KEYSTONE_PASTE_INI pipeline:admin_api pipeline "$admin_api_values"

    # Take "xml_body_v3" out of the api_v3 pipeline
    values="$(iniget $KEYSTONE_PASTE_INI pipeline:api_v3 pipeline)"
    api_v3_values="$(get_new_values "$values" xml_body_v3)"
    iniset $KEYSTONE_PASTE_INI pipeline:api_v3 pipeline "$api_v3_values"

    # Take "xml_body" out of the public_version_api pipeline
    values="$(iniget $KEYSTONE_PASTE_INI pipeline:public_version_api pipeline)"
    public_api_values="$(get_new_values "$values" xml_body)"
    iniset $KEYSTONE_PASTE_INI pipeline:public_version_api  pipeline "$public_api_values"

    # Take "xml_body" out of the admin_version_api pipeline
    values="$(iniget $KEYSTONE_PASTE_INI pipeline:admin_version_api pipeline)"
    admin_api_values="$(get_new_values "$values" xml_body)"
    iniset $KEYSTONE_PASTE_INI pipeline:admin_version_api pipeline "$admin_api_values"

    ## reset to previous state
    $xtrace
}