#!/bin/bash

files=("/etc/nginx" "/etc/wireguard" "/etc/matrix-synapse" "/opt")
names=()
DBs=("synapse")
now=$(date +"%s")
week_day=$(date +"%A")
dir="/mnt/backups"
backup_dir="${dir}/${now}"
remoteUser="foxbackup"
localUser="foxbackup"
localPostgreUser="postgres"
host="42.42.42.3"
port=2244

if [ $UID != "0" ]; then
        echo "You must run it as sudo."
        exit 1
fi

remoteExecuce() {
        sudo -iu $localUser ssh -p $port $remoteUser@$host "$*"
}

log() {
	echo "[$(date)] $*" >> ./autobackup_log.txt
	echo "[$(date)] $*"
}

backupDb() {
        sudo -iu $localPostgreUser pg_dump -Fc "$1" | sudo -iu $localUser ssh -p $port $remoteUser@$host "pv > \"${backup_dir}/${1}.dump\""
}

backupDir() {
        tar cpf - "${2}" | sudo -iu $localUser ssh -p $port $remoteUser@$host "pv > \"${backup_dir}/${1}.tar\""
}

startBackup() {
    log "#===#Starting backup#===#"

	#if [[ $week_day == "Sunday" ]]; then
	#	backup_dir="${dir}/${now}_full"
	#	files+=("/var/www")
	#	DBs+=("peertube_prod")
	#fi

	remoteExecuce mkdir -p "${backup_dir}"

	for name in ${files[@]}; do
		IFS="/"
		temp="${name}"
		read -rasplitIFS<<< "${temp}"
		len=${#splitIFS[@]}
		names+=(${splitIFS[$len-1]})
		IFS=''
	done

	length=${#files[@]}
	i=0
	while [ $i -lt $length ]; do
		log "Backing up dir ${files[$i]}"
		echo $i
		backupDir ${names[$i]} ${files[$i]}
		i=$(( $i + 1 ))
	done

	for db in ${DBs[@]}; do
		log "Backing up DB ${db}"
		backupDb ${db}
	done

	log "All is backed up, cleaning up old backups and finishing"
  	remoteExecuce "${dir}/autobackup.sh"
    log "All is done."
}
startBackup

#====how to restore====#
#pg_restore -d postgres --clean --create "file backup"