# !/bin/bash -

source ./general_utils
source ./log_helpers
source ./git_helpers
source ./update_psa_helpers
source ./read_config
source ./news_to_ismas
source ./news_from_ismas

trap collect_current_configuration EXIT

collect_current_configuration () {
    local func="${FUNCNAME[0]}"

    $FATAL_FAILURE && return 1

    # TODO: eventuell muss die version neu berechnet werden
    current_settings_to_ismas

    #for line in $(cat $PSA_UPDATE_CONF |\
    #          jq -r .conf.szeged.zg[$ZONE_GROUP].z[$ZONE].etc.psa_config)
    #do
    #    conf_file="$(echo $line | 
    #                 sed -E -ne 's/^[^{}]\s+\"(DC2C_[[:alnum:]]+)\".*$/\1/gp')"
    #    if ! [ -z $conf_file ]; then
    #        local v=$(cat "$psa_config_dir/${conf_file}.json" | jq -r .version)
    #        echo "$conf_file.json version=$v"
    #    fi
    #done
}

update_psa() {
    update_psa_activated    # message to ISMAS
    local func="${FUNCNAME[0]}"
    
    check_default_route
    check_route_to_repository "185.191.219.134" # git.mimbach.de
    # even for a git clone a running APISM is needed 
    check_for_running_apism

    # an initial clone of the customer-repository (e.g. customer_281) is 
    # always possible, even without a ISMAS-WAIT-button
    clone_customer_repository ${CUSTOMER_REPOSITORY_PATH}
    check_sanity_of_repository
    $INITIAL_CLONE && return 0

    local ismas_requests=0

    if [ "$MAINTENANCE" = "NO" ]; then
        log_info "${func}:${LINENO}: MAINTENANCE OFF. Checking for updates..."
        # someone must have activated the WAIT-button in ISMAS. 
        # Request the status of this button in updates_available().
        while [ $ismas_requests -le 3 ]; do
	    ismas_requests=$(( $ismas_requests + 1 ))
            updates_available && break
            update_psa_false_alarm "update requested, but no WAIT state detected <$ismas_requests>"
        done
        if [ $ismas_requests -gt 3 ]; then
            log_fatal "update_psa:${LINENO}: update requested, but no WAIT state detected !!!"
        fi
    else
        log_info "${func}:${LINENO}: MAINTENANCE ON. Emulate ISMAS updates..."
        # simulate an activated WAIT-button in ISMAS
        set_updates_available
        while [ $ismas_requests -le 10 ]; do
            sleep 5
            updates_available && break
	    ismas_requests=$(( $ismas_requests + 1 ))
	    log_info "${func}:${LINENO}: updates_requested <$ismas_requests>"
        done 
        if [ $ismas_requests -gt 10 ]; then
	    log_fatal "${func}:${LINENO}: NO ISMAS UPDATES AVAILABLE"
        fi
    fi

    log_debug "$func:${LINENO}: before fetch/merge updates..."
   
    # Fetch new updates (using git). but only when repository has already been
    # cloned.
    if ! fetch_customer_updates; then
        update_psa_false_alarm \
	    "update request, but no change in $CUSTOMER_REPOSITORY_PATH"
        log_fatal "$func:${LINENO}: fetch no data for $customer_id"\
	    "-> no files to update -> no psa update"
    else
    	log_debug "$func:${LINENO}: after successful fetch_customer_repository..."
    fi

    update_psa_pull_customer_repository # message to ISMAS
}