#! /bin/bash

# Rocky 9 compatible

. /usr/src/m2/framework/bash_functions.sh

# ---- VARS -----

VERSION="1.1.0"
SCRIPT_NAME="Go Modules Check"

k_start
k_config_details

GO_MODULES_INSTALL_DIR="/usr/local/m2"
GO_MODULES_SRC_DIR="/usr/src/m2/scripts/go"
ERROR_CODE=0

# Go module for DB server (with cron)
GO_DB_MODULES_WITH_CRON=("m4_flat_rate_data" "m4_flat_rate_notifications" "m4_subscription_actions" "m4_subscriptions")
# Go modules for DB server (without cron) - currently there are none
# GO_DB_MODULES=()
# Go modules for all servers (with cron) - currently there are none
# GO_MODULES_WITH_CRON=()
# Go modules for all servers (without cron) - currently there are none
# GO_MODULES=()

# Check if server is marked as DB
is_db_server()
{
    if [[ "$DB_PRESENT" == "1" ]] && [[ "$MAIN_DB" == "1" || "$MAIN_DB" == "-1" ]]; then
        echo 1
    else
        echo 0
    fi
}

# Check Go modules
# Arguments
#   $1 - check condition (should modules/crons be present in this server?)
#   $2 - should we check crons?
#   $3 - modules array
check_modules()
{
    local check_condition="$1"
    local check_with_cron="$2"
    local check_array=(${@:3})

    for m in "${check_array[@]}"; do
        err=0

        if [ "$check_condition" == "1" ]; then
            # Check if module is present
            if [ ! -e $GO_MODULES_INSTALL_DIR/"$m" ]; then
                report "Go module $m is not present" 1
                err=1
            else
                # Compare installed module with src module from svn
                if ! cmp -s "$GO_MODULES_INSTALL_DIR/$m" "$GO_MODULES_SRC_DIR/bin/$m"; then
                    report "Go module $m is outdated" 1
                    err=1
                fi
            fi

            # Check if cronjobs present
            if [ "$check_with_cron" == "1" ]; then
                if [ ! -e /etc/cron.d/"$m" ]; then
                    report "Cron $m is not present" 1
                    err=1
                else
                    # Compare cron file with svn
                    if ! cmp -s "/etc/cron.d/$m" "$GO_MODULES_SRC_DIR/cron/$m"; then
                        report "Cron $m is outdated" 1
                        err=1
                    fi
                fi
            fi
        else
            # Module and cron should not be present in this server
            if [ -e $GO_MODULES_INSTALL_DIR/"$m" ]; then
                report "Go module $m should not be present in this server" 1
                err=1
            fi
            if [ "$check_with_cron" == "1" ]; then
                if [ -e /etc/cron.d/"$m" ]; then
                    report "Cron $m should not be present in this server" 1
                    err=1
                fi
            fi
        fi

        if [ "$err" = "1" ]; then
            ERROR_CODE=1
        else
            if [ "$check_condition" == "1" ]; then
                report "Go module $m and cron OK" 0
            fi
        fi
    done
}

# Check Go modules for DB server with cron
check_modules "$(is_db_server)" 1 "${GO_DB_MODULES_WITH_CRON[@]}"

if [ "$ERROR_CODE" = "1" ]; then
    report "  $GO_MODULES_SRC_DIR/go_modules_install.sh" fix
    EXIT_CODE=1
fi

k_exit $EXIT_CODE