#!/bin/bash

set -euo pipefail

addr=""
name=""

function usage() {
	echo "usage: disable_failpoint --name <name> [--addr <ip:port>]" >&2
	exit 1
}

while [[ $# -gt 0 ]]; do
	case "$1" in
	--addr | -a)
		addr="$2"
		shift 2
		;;
	--name | -n)
		name="$2"
		shift 2
		;;
	-h | --help)
		usage
		;;
	*)
		echo "unknown argument: $1" >&2
		usage
		;;
	esac
done

if [[ -z "$name" ]]; then
	usage
fi

if [[ -z "$addr" ]]; then
	host="${CDC_HOST:-127.0.0.1}"
	port="${CDC_PORT:-8300}"
	addr="${host}:${port}"
fi

function json_escape() {
	local s="$1"
	s=${s//\\/\\\\}
	s=${s//\"/\\\"}
	s=${s//$'\n'/\\n}
	s=${s//$'\r'/\\r}
	s=${s//$'\t'/\\t}
	printf '%s' "$s"
}

payload=$(printf '{"name":"%s"}' "$(json_escape "$name")")
tmpfile=$(mktemp)
http_code=$(curl -s -o "$tmpfile" -w "%{http_code}" \
	-X DELETE "http://${addr}/debug/failpoints" \
	-H "Content-Type: application/json" \
	--data "$payload")

if [ "$http_code" != "200" ]; then
	echo "disable failpoint failed: $name" >&2
	cat "$tmpfile" >&2
	rm -f "$tmpfile"
	exit 1
fi

rm -f "$tmpfile"