#!/bin/bash
NO_FORMAT="\e[0m"
C_RED="\e[38;5;9m"
PC=$(uname -n | awk '{print $1}')

#Verify if root
if [ "$UID" -ne 0 ]; then
    echo -e "${C_RED}This script must be run as root.${NO_FORMAT}"
    exit 1
fi

rsync_cmd() {
	local -a cmd=(rsync -rlptH --safe-links --delete-delay --delay-updates
		"--timeout=600" "--contimeout=60" --no-motd)

	if stty &>/dev/null; then
		cmd+=(-h -v --progress)
	else
		cmd+=(--quiet)
	fi

	if ((bwlimit>0)); then
		cmd+=("--bwlimit=$bwlimit")
	fi

	"${cmd[@]}" "$@"
}

if [ "$PC" = "Nasperon" ]
then
target="/mnt/POOL3/Mirrors/archlinux/data"
lock="/mnt/POOL3/Mirrors/archlinux/syncrepo.lck"
else
target="/mnt/POOL1/Mirrors/archlinux/data"
lock="/mnt/POOL1/Mirrors/archlinux/syncrepo.lck"
fi

bwlimit=0

source_url='rsync://delta:874/archlinux'

lastupdate_url='https://delta:18650/archlinux/lastupdate'

[ ! -d "${target}" ] && mkdir -p "${target}"

exec 9>"${lock}"
flock -n 9 || exit
find "${target}" -name '.~tmp~' -exec rm -r {} +

if ! tty -s && [[ -f "$target/lastupdate" ]] && diff -b <(curl -Ls "$lastupdate_url") "$target/lastupdate" >/dev/null; then
	rsync_cmd "$source_url/lastsync" "$target/lastsync"
	exit 0
fi

rsync_cmd \
	--exclude='*.links.tar.gz*' \
	--exclude='/other' \
	--exclude='/sources' \
	"${source_url}" \
	"${target}"

echo "Last sync was $(date -d @$(cat ${target}/lastsync))"
if [ "$PC" = "Nasperon" ]
then
chmod 775 -R /mnt/POOL3/Mirrors
chown 1000:1002 -R /mnt/POOL3/Mirrors
else
chmod 775 -R /mnt/POOL1/Mirrors
chown 1000:1001 -R /mnt/POOL1/Mirrors
fi
exit