#!/bin/sh
# Starts a dedicated Emberwild server (no window, no local player).
#
#   server/run_server.sh                       defaults from server.json
#   server/run_server.sh --port 24242 --server-name "Paul's island" --password secret
#
# Any flags are passed to the server (see docs/MULTIPLAYER_PLAN.md §2).
# Set GODOT=/path/to/godot to use a particular Godot. Stop it with Ctrl+C.
#
# Before starting it checks that Godot is 4.7 or newer, and imports a fresh
# copy of the project once (Godot's class cache lives in .godot/, which isn't
# in git, so a new clone can't run headless until it has been imported).

cd "$(dirname "$0")/.." || exit 1

GODOT="${GODOT:-godot}"
if ! command -v "$GODOT" >/dev/null 2>&1; then
	# macOS: use the app bundle if `godot` isn't on the PATH.
	if [ -x /Applications/Godot.app/Contents/MacOS/Godot ]; then
		GODOT=/Applications/Godot.app/Contents/MacOS/Godot
	else
		echo "Can't find Godot. Install 4.7.2 from https://godotengine.org/download, or set GODOT=/path/to/godot" >&2
		exit 1
	fi
fi

version=$("$GODOT" --version 2>/dev/null | tail -n 1)
major=$(echo "$version" | cut -d. -f1)
minor=$(echo "$version" | cut -d. -f2)
if [ -z "$major" ] || [ "$major" -lt 4 ] || { [ "$major" -eq 4 ] && [ "$minor" -lt 7 ]; }; then
	echo "This game needs Godot 4.7 or newer, but $GODOT is ${version:-unknown}." >&2
	echo "Download 4.7.2 from https://godotengine.org/download (or set GODOT=/path/to/a/newer/godot)" >&2
	exit 1
fi

if [ ! -f .godot/global_script_class_cache.cfg ]; then
	echo "First run on this copy: importing the project (a few seconds)..."
	if ! "$GODOT" --headless --path . --import >/dev/null 2>&1 || [ ! -f .godot/global_script_class_cache.cfg ]; then
		echo "Import failed. Try: $GODOT --headless --path . --import" >&2
		exit 1
	fi
fi

exec "$GODOT" --headless --path . -- --server "$@"