#!/bin/bash
#
# Server Files: /mnt/server

## install packages to get version and download links
apt update
apt install -y curl wget file jq

MATCH=OpenRA-Red-Alert-x86_64.AppImage

cd /mnt/server/ || { echo "Failed to change into server directory"; exit 1; }



# If latest version requested, determine version
if [ -z "${VERSION}" ] || [ "${VERSION}" == "latest" ]; then
    # Fetch latest version from OpenRA API
    echo "Finding latest version of OpenRA"
    VERSION=$(curl -s https://www.openra.net/versions.json | jq -r .release)
fi

echo "Installing version ${VERSION} of ${MATCH}"

# Configure GitHub authentication
if [ -n "${GITHUB_USER}" ] && [ -n "${GITHUB_OAUTH_TOKEN}" ]; then
    echo "Using GitHub authentication"
    # shellcheck disable=SC2139
    alias curl="curl -u ${GITHUB_USER}:${GITHUB_OAUTH_TOKEN}"
else
    echo "Using anonymous API calls"
fi


# Fetch release information from GitHub
RELEASE_JSON=$(curl --silent "https://api.github.com/repos/OpenRA/OpenRA/releases/tags/${VERSION}") || { echo "Failed to get release info for ${VERSION}"; exit 1; }

# Find download link for requested artifact
DOWNLOAD_LINK=$(echo "${RELEASE_JSON}" | jq -r --arg MATCH $MATCH '.assets[] | select(.name == $MATCH).browser_download_url')
if [ -z "${DOWNLOAD_LINK}" ] || [ "${DOWNLOAD_LINK}" == "null" ] ; then
    echo "Failed to find download url for "
    exit 1
fi

wget "${DOWNLOAD_LINK}" || { echo "Failed to download ${DOWNLOAD_LINK}"; exit 1; }

chmod +x $MATCH
./$MATCH --appimage-extract
rm -f $MATCH
rm -f ./*.zsync
cd squashfs-root && chmod +x AppRun

## install end
echo "-----------------------------------------"
echo "Installation completed..."
echo "-----------------------------------------"