#!/bin/sh

die() { echo >&2 "$@"; exit 1; }

( [ $# -ge 1 ] && [ $# -le 3 ] ) || die "Syntax: $0 [-n] <campaignd version> <port number>"

set -o errexit
set -o nounset

run=""

[ "$1" = "-n" ] && { run=echo; shift; }
VERSION="$1"
PORT="$2"

prefix="$HOME/campaignd"

if [ ! -d "$prefix" ]; then
	die "FATAL: campaignd prefix \`$prefix\` missing!"
fi

instance="$prefix/$VERSION"
control_fifo="$instance/socket"
server_cfg="$instance/server.cfg"

if [ "$run" = "echo" ]; then
	server_cfg=/dev/null
else
	set -x
fi

$run mkdir "$instance"
$run mkdir "$instance/data"
$run mkdir "$instance/logs"
$run mknod "$control_fifo" p

$run ln -sf "../COPYING.txt" "$instance/COPYING.txt"
$run ln -sf "$instance/current.log" "$HOME/$VERSION.log"

# Create the initial configuration for a server in read-only mode.
$run cat > "$server_cfg" <<EOF
compress_level=9
control_socket="$control_fifo"
port=$PORT
stats_exempt_ips="192.168.*,127.0.0.1"
read_only=yes
[server_info]
	feedback_url_format="https://r.wesnoth.org/t\$topic_id"
[/server_info]
[campaigns]
[/campaigns]
EOF

set +x

if [ "$run" != "echo" ]; then
	echo '************************************************************************'
	echo "Instance created. To disable read-only mode for officially opening it "
	echo "up to users, run \`send_campaignd_command $VERSION readonly no\` after "
	echo "starting it for the first time."
	echo '************************************************************************'
fi