#!/bin/bash
#
# Maintenance operations at once a day.
# This script called usually by the cron (but indirectly).
#
# Uses the rotate_folder utility which must be available on path.
# Uses the acme wrapper script which have to exist in same folder
# as this script.
#
# Author: Kovács Zoltán <kovacs.zoltan@smartfront.hu>
#         Kovács Zoltán <kovacsz@marcusconsulting.hu>
# License: GNU/GPL v3+ (https://www.gnu.org/licenses/gpl-3.0.en.html)
# 2023-06-18 v1.0
# new: forked from the "Smartfront's DOCKER_skeleton" repository.
# 2021-09-14 v0.2
# add: Checks the SSL web certificate (if any), renews it if necessary.
# 2021-09-01 v0.1 Initial release

# Checks the components.
[[ -z "$(which dirname)"  ]] && exit 1
[[ -z "$(which readlink)" ]] && exit 1
[[ -z "$(which xargs)"    ]] && exit 1

# Where I'm?
SCRPATH="$( cd -P "$( "$(which dirname)" "$0" )" && echo "$PWD" )"

# Checks the SSL web certificate, renews it if necessery.
#
# Uses the acme wrapper script located in the same directory.
ACME="$SCRPATH/acme"
ACMELOG="$($(which dirname) "$SCRPATH")/logs/web/acme.log"
if [ -n "$ACME" -a -x "$ACME" ]; then
    "$ACME" --cron >> "$ACMELOG" 2>&1
fi
# Done with the certificate.

# Daily backup operations.
#
# Launches the backup script.
[[ -x "$SCRPATH/backup" ]] && "$SCRPATH/backup"
# Done with backups.

# Rotates the backup folders.
#
# Enumerates the folders and tries to rotate they content.
BACKUPSROOT="$("$(which dirname)" "$SCRPATH")/storage/backups" #"
for folder in $(ls -1 "$BACKUPSROOT" 2>/dev/null | $(which xargs) -0 ) ""
do
    if [ -n "$folder" ]; then
	# Dereferenced absolute path.
	folder="$("$(which readlink)" -e "$BACKUPSROOT/$folder")" #"
	# Does it a folder with a prepared configuration?
	if [ -d "$folder" -a -r "$folder/.rotate_folder.conf" ]; then
	    # Does the rotate job.
	    if [ -x "$SCRPATH/rotate_folder" ]; then
		"$SCRPATH/rotate_folder" -f "$folder" >/dev/null
	    elif [ -x "$(which rotate_folder)" ]; then
		"$(which rotate_folder)" -f "$folder" >/dev/null
	    fi
	fi
    fi
done
# Done with rotating.