#!/command/with-contenv bash

source /assets/functions/00-container
PROCESS_NAME="db-backup{{BACKUP_NUMBER}}-scheduler"
check_container_initialized
check_service_initialized init 10-db-backup
source /assets/functions/10-db-backup
source /assets/defaults/10-db-backup
bootstrap_variables backup_init {{BACKUP_NUMBER}}
bootstrap_variables parse_variables {{BACKUP_NUMBER}}
PROCESS_NAME="{{BACKUP_NUMBER}}-${backup_job_db_host}__${backup_job_db_name}"


trap ctrl_c INT

if [[ "${MODE,,}" =~ "standalone" ]] || [ "${1,,}" = "manual" ] || [ "${1,,}" = "now" ]; then
    print_debug "Detected Manual Mode"
    persist=false
    backup_job_backup_begin=+0
else
    silent sleep {{BACKUP_NUMBER}}
    current_time=$(date +'%s')
    today=$(date +"%Y%m%d")

    if [[ ${backup_job_backup_begin} =~ ^\+(.*)$ ]]; then
        waittime=$(( ${BASH_REMATCH[1]} * 60 ))
        target_time=$(($current_time + $waittime))
    else
        target_time=$(date --date="${today} ${backup_job_backup_begin}" +'%s')
        if [[ "$target_time" < "$current_time" ]]; then
            target_time=$(($target_time + 24*60*60))
        fi
        waittime=$(($target_time - $current_time))
    fi
    print_debug "Wait Time: ${waittime} Target time: ${target_time} Current Time: ${current_time}"
    print_info "Next Backup at $(date -d @${target_time} +'%Y-%m-%d %T %Z')"
    silent sleep $waittime
    set +x
fi

while true; do
    if [ -n "${backup_job_blackout_start}" ] && [ -n "${backup_job_blackout_finish}" ] ; then
        hour_minute=$(date +%H%M)
        if [[ "${hour_minute}" > "${backup_job_blackout_start}" ]] && [[ "${hour_minute}" < "${backup_job_blackout_finish}" ]] ; then
            blackout=true
        else
            blackout=false
        fi
    fi
    if var_true "${blackout}" ; then
        print_notice "Detected Blackout Period - Not performing backup operations"
    else
        timer job start
        process_limiter
        echo "{{BACKUP_NUMBER}}" >> /tmp/.container/db-backup-backups
        print_debug "Backup {{BACKUP_NUMBER}} routines started time: $(date +'%Y-%m-%d %T %Z')"
        bootstrap_filesystem
        case "${dbtype,,}" in
            "couch" )
                check_availability
                backup_couch
            ;;
            "influx" )
                check_availability
                backup_influx
            ;;
            "mssql" )
                check_availability
                backup_mssql
            ;;
            "mysql" )
                check_availability
                backup_mysql
            ;;
            "mongo" )
                check_availability
                backup_mongo
            ;;
            "pgsql" )
                check_availability
                backup_pgsql
            ;;
            "redis" )
                check_availability
                backup_redis
            ;;
            "sqlite3" )
                check_availability
                backup_sqlite3
            ;;
        esac
        timer job stop
        if [ -z "${exitcode_backup}" ] ; then exitcode_backup="0" ; fi
        print_info "Backup {{BACKUP_NUMBER}} routines finish time: $(date -d @${backup_job_finish_time} +'%Y-%m-%d %T %Z') with exit code ${exitcode_backup}"
        print_notice "Backup {{BACKUP_NUMBER}} routines time taken: $(echo ${backup_job_total_time} | awk '{printf "Hours: %d Minutes: %02d Seconds: %02d", $1/3600, ($1/60)%60, $1%60}')"
        sed -i "/^{{BACKUP_NUMBER}}/d" /tmp/.container/db-backup-backups
    fi

    symlink_log

    if var_false "${persist}" ; then
        print_debug "Exiting due to manual mode"
        exit ${exitcode_backup};
    else
        if var_true "${stop_scheduler_backup}" ; then
            print_error "Stopping backup_scheduler {{BACKUP_NUMBER}} due to detected errors. Fix and restart container."
            s6-svc -d /var/run/s6/legacy-services/dbbackup-{{BACKUP_NUMBER}}
        else
            print_notice "Sleeping for another $(($backup_job_backup_interval*60-backup_job_total_time)) seconds. Waking up at $(date -d@"$(( $(date +%s)+$(($backup_job_backup_interval*60-backup_job_total_time))))" +'%Y-%m-%d %T %Z') "
            silent sleep $(($backup_job_backup_interval*60-backup_job_total_time))
        fi
    fi
done