#!/bin/bash
set -eux

# just podman things
export DBUS_SESSION_BUS_ADDRESS=

NAME=xash-builder

HLRTEST_REPO_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")"/.. && pwd)"

source .env

build-image-hlsdk() {
	podman build -t ubuntu-hlsdk -f Containerfile.hlsdk
}

build-image() {
	podman build -t ubuntu-xash-builder -f Containerfile
}

build() {
	build-image-hlsdk
	build-image
}

git_short() {
	local dir="${1:-.}"
	local hash dirty_flag

	# Get short commit hash
	hash=$(cd "$dir" && git rev-parse --short HEAD 2>/dev/null)

	if [[ -z "$hash" ]]; then
		echo "Not a git repository" >&2
		return 1
	fi

	# Check for uncommitted changes (staged or unstaged)
	dirty_flag=$(cd "$dir" && git status --porcelain --untracked-files=no 2>/dev/null)

	if [[ -n "$dirty_flag" ]]; then
		echo "${hash}-dirty"
	else
		echo "$hash"
	fi
}

render-test() {
	local OUTPUT="${HLRTEST_REPO_DIR}/render/work"
	mkdir -p "${OUTPUT}"

	local HLRTEST_REVISION=$(git_short "${HLRTEST_REPO_DIR}")
	local XASH3D_REVISION=$(git_short "${XASH3D_RT_REPO_DIR}")
	local PBR_REVISION=$(git_short "${HALFLIFE_PBR_REPO_DIR}")

	# Make sure the image's ubuntu (uid=1000) user can write to the output
	#chmod -R o+rw "${OUTPUT}"

	podman run -it --rm \
		--name ${NAME} \
		--userns=keep-id:uid=1000,gid=1000 \
		\
		--cap-drop=ALL \
		--security-opt=no-new-privileges \
		--read-only \
		--tmpfs /tmp \
		\
		-e HLRTEST_REVISION="${HLRTEST_REVISION}" \
		-e XASH3D_REVISION="${XASH3D_REVISION}" \
		-e PBR_REVISION="${PBR_REVISION}" \
		\
		-v /dev/dri/renderD128:/dev/dri/renderD128:ro \
		-v /etc/localtime:/etc/localtime:ro \
		\
		-v /opt/hl \
		-v /home/ubuntu \
		-v ${HALFLIFE_PBR_REPO_DIR}/valve/pbr:/opt/hl/valve/pbr:ro \
		-v ${HALFLIFE_PBR_REPO_DIR}/valve/bluenoise:/opt/hl/valve/bluenoise:ro \
		\
		-v ${XASH3D_RT_REPO_DIR}:/build/xash3d-fwgs:O \
		\
		-v ${HLRTEST_REPO_DIR}:/build/HLRTest:O \
		-v ${OUTPUT}:/build/HLRTest/render/work \
		\
		ubuntu-xash-builder:latest \
		"$@"
}

shell() {
	podman exec -it ${NAME} /bin/bash
}

time "$@"