#!/bin/sh

set -eu

if [ "$#" -lt 1 ]; then
    echo "Usage: $0 <installation-directory> <option>"
    echo "Options:"
    echo "  wayland-native   Enable native Wayland support"
    echo "  remove           Remove Feishin AppImage and desktop entries"
    exit 1
fi

dir="$(readlink -f "${1}")"
arg="${2:-""}"
arch="$(uname -m)"

if [ "$arg" != "wayland-native" ] && [ "$arg" != "remove" ] && [ "$arg" != "" ]; then
    echo "Invalid option: $arg"
    echo "Valid options are: wayland-native, remove"
    exit 1
fi

if [ "${arch}" != "x86_64" ] && [ "${arch}" != "aarch64" ]; then
	echo "CPU architecture not recognised (not x86_64 or aarch64). Aborting."
	exit 1
fi

# workaround if we're not renaming the artifact
if [ "${arch}" = "aarch64" ]; then
	arch="arm64"
fi

if [ ! -d "${dir}" ]; then
	echo "${dir} is not a directory or does not exist. Please provide an existing directory."
	exit 1
fi

localShare="${XDG_DATA_HOME:-$HOME/.local/share}"
localShareIcons="${localShare}/icons/hicolor"

if [ "${arg}" = "remove" ]; then
	rm -v \
		"${localShareIcons}/512x512/apps/org.jeffvli.feishin.png" \
		"${localShareIcons}/256x256/apps/org.jeffvli.feishin.png" \
		"${localShareIcons}/128x128/apps/org.jeffvli.feishin.png" \
		"${localShareIcons}/64x64/apps/org.jeffvli.feishin.png" \
		"${localShareIcons}/32x32/apps/org.jeffvli.feishin.png" \
		"${localShare}/applications/org.jeffvli.feishin.desktop" \
		"${dir}/Feishin-linux-${arch}.AppImage"
	exit 0
fi

curl --fail -L --create-dirs --write-out '%{filename_effective}\n' \
	-o "${dir}/Feishin-linux-${arch}.AppImage" "https://github.com/jeffvli/feishin/releases/latest/download/Feishin-linux-${arch}.AppImage" \
	-o "${localShareIcons}/512x512/apps/org.jeffvli.feishin.png" 'https://github.com/jeffvli/feishin/blob/development/assets/icons/512x512.png?raw=true' \
	-o "${localShareIcons}/256x256/apps/org.jeffvli.feishin.png" 'https://github.com/jeffvli/feishin/blob/development/assets/icons/256x256.png?raw=true' \
	-o "${localShareIcons}/128x128/apps/org.jeffvli.feishin.png" 'https://github.com/jeffvli/feishin/blob/development/assets/icons/128x128.png?raw=true' \
	-o "${localShareIcons}/64x64/apps/org.jeffvli.feishin.png" 'https://github.com/jeffvli/feishin/blob/development/assets/icons/64x64.png?raw=true' \
	-o "${localShareIcons}/32x32/apps/org.jeffvli.feishin.png" 'https://github.com/jeffvli/feishin/blob/development/assets/icons/32x32.png?raw=true'
chmod -v u+x "${dir}/Feishin-linux-${arch}.AppImage"

waylandFlags=""
if [ "${arg}" = "wayland-native" ]; then
	waylandFlags="--enable-features=UseOzonePlatform,WaylandWindowDecorations --ozone-platform-hint=auto"
fi

# this is for Debian-based kernels and ALT respectively
# https://unix.stackexchange.com/a/303214/145722
sandboxFlag=""
if [ "$(sysctl kernel.unprivileged_userns_clone 2>/dev/null)" = "0" ] \
	|| [ "$(sysctl kernel.userns_restrict 2>/dev/null)" = "1" ]; then
	sandboxFlag="--no-sandbox"
fi

mkdir -pv "${localShare}/applications"

export FEISHIN_DESKTOP_EXECUTABLE="${dir}/Feishin-linux-${arch}.AppImage"
export FEISHIN_DESKTOP_ARGS="${sandboxFlag} ${waylandFlags}"
curl --fail https://raw.githubusercontent.com/jeffvli/feishin/refs/heads/development/feishin.desktop.tmpl | envsubst > "${localShare}/applications/org.jeffvli.feishin.desktop"