#!/bin/sh
set -eu
. /usr/libexec/haproxy-manager/common.sh

REQUESTED_BASE="$(backup_dir)"
STAMP="$(date +%Y%m%d-%H%M%S)"

umask 077
mkdir -p "$REQUESTED_BASE"
BASE="$(resolve_storage_dir "$REQUESTED_BASE")" || {
	echo "Recovery point directory resolves outside /root or /mnt" >&2
	exit 1
}
chmod 700 "$BASE" 2>/dev/null || true
DIR="$BASE/$STAMP"
attempt=1
while ! mkdir "$DIR" 2>/dev/null; do
	[ "$attempt" -lt 5 ] || {
		echo "Cannot create recovery point in $BASE after $attempt attempts" >&2
		exit 1
	}
	sleep 1
	attempt=$((attempt + 1))
	STAMP="$(date +%Y%m%d-%H%M%S)"
	DIR="$BASE/$STAMP"
done
chmod 700 "$DIR" 2>/dev/null || true
[ -f /etc/config/firewall ] && cp /etc/config/firewall "$DIR/firewall"
[ -f /etc/config/uhttpd ] && cp /etc/config/uhttpd "$DIR/uhttpd"
[ -f /etc/config/haproxy_manager ] && cp /etc/config/haproxy_manager "$DIR/haproxy_manager"
[ -f "$HAPROXY_CFG" ] && cp "$HAPROXY_CFG" "$DIR/haproxy.cfg"
{
	if /etc/init.d/haproxy enabled >/dev/null 2>&1; then
		printf 'enabled=1\n'
	else
		printf 'enabled=0\n'
	fi
	if /etc/init.d/haproxy status >/dev/null 2>&1; then
		printf 'running=1\n'
	else
		printf 'running=0\n'
	fi
} > "$DIR/haproxy.state"

printf '%s\n' "$STAMP" > "$BASE/LAST"

count=0
for old in $(find "$BASE" -maxdepth 1 -type d -name '[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]-[0-9][0-9][0-9][0-9][0-9][0-9]' 2>/dev/null | sort -r); do
	count=$((count + 1))
	[ "$count" -le "$BACKUP_LIMIT" ] && continue
	case "$old" in
		"$BASE"/[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]-[0-9][0-9][0-9][0-9][0-9][0-9])
			rm -f "$old"/*
			rmdir "$old"
		;;
	esac
done

printf '%s\n' "$DIR"