#!/bin/bash
set -euo pipefail

cd "$(dirname "$0")"

check_remote() {
	if [[ $MATTERMOST_REMOTE == */ ]]; then
		echo "MATTERMOST_REMOTE should not end with a slash (it should only the protocol and the domain; no path)" >&2
		exit 1
	fi
}

if [[ ! -f config ]]; then
	read -p 'Server URL (e.g. `https://mattermost.example.com`): ' MATTERMOST_REMOTE
	check_remote
	echo "MATTERMOST_REMOTE='$MATTERMOST_REMOTE'" > config
	echo 'You can change this later by editing the file `config`.'
fi
source "config"
check_remote

server_pid=0
finish() {
	if [[ $server_pid -gt 1 ]]; then kill "$server_pid" || true; server_pid=0; fi
}
trap finish EXIT

python3 -m "http.server" >/dev/null 2>&1 &
server_pid=$!
mitmproxy -s etc/mitm_cors.py -m "reverse:$MATTERMOST_REMOTE"