#!/bin/bash

info() { printf "\n%s %s\n\n" "$( date )" "$*" >&2; }
trap 'echo $( date ) Backup interrupted >&2; exit 2' INT TERM

# Create log directories
BASH_BACKUP_PATH="/var/www/html/backup/bash"
mkdir -p ${BASH_BACKUP_PATH}

# Create database backup
TIMESTAMP=$(date +%Y%m%d_%H%M%S)
DB_USER="jingga"
DB_PASSWORD="password"
DB_BACKUP_PATH="/var/www/html/backup/sql"

info "Starting mysql backup"

mkdir -p ${DB_BACKUP_PATH}
mysqldump -u ${DB_USER} -p${DB_PASSWORD} oms > oms_${TIMESTAMP}.sql

sql_exit=$?

# Create file backup

BACKUP_PATH="/home/spl1nes/backup"
TO_BACKUP="/var/www/html"
REMOTE_USER="user"
REMOTE_SERVER="192.168.178.38"

## Create repository
# borg init -v --encryption=repokey ${BACKUP_PATH}
# borg key export ${BACKUP_PATH} repokey

## Start backup
info "Starting file backup"

borg create                         \
    --verbose                       \
    --filter AME                    \
    --list                          \
    --stats                         \
    --show-rc                       \
    --compression lz4               \
    --exclude-caches                \
    --exclude 'home/*/.cache/*'     \
    --exclude 'var/tmp/*'           \
                                    \
    ::'{hostname}-{utcnow}'         \
    ${TO_BACKUP}

backup_exit=$?

## Only keep 7 daily, 4 weekly and 6 monthly backups
info "Pruning repository"

borg prune                          \
    --list                          \
    --glob-archives '{hostname}-*'  \
    --show-rc                       \
    --keep-daily    7               \
    --keep-weekly   4               \
    --keep-monthly  6               \
    --keep-yearly   10

prune_exit=$?

## Reduce disk space by compacting
info "Compacting repository"

borg compact ${BACKUP_PATH}

compact_exit=$?

# Handle global exit code
global_exit=$(( sql_exit > backup_exit ? sql_exit : backup_exit ))
global_exit=$(( prune_exit > global_exit ? prune_exit : global_exit ))
global_exit=$(( compact_exit > global_exit ? compact_exit : global_exit ))

if [ ${global_exit} -eq 0 ]; then
    info "Backup finished successfully"
elif [ ${global_exit} -eq 1 ]; then
    info "Backup, Prune, and/or Compact finished with warnings"
else
    info "Backup, Prune, and/or Compact finished with errors"
fi

exit ${global_exit}