#!/bin/bash
# NanoLimbo Installation Script
#
# Server Files: /mnt/server

apt update
apt install -y curl jq git openssl bash bc apt-transport-https gnupg software-properties-common

if [ -z "${DOWNLOAD_URL}" ]; then
    GITHUB_PACKAGE="Nan1t/NanoLimbo"
    MATCH="NanoLimbo-"

    ## get release info and download links
    LATEST_JSON=$(curl --silent "https://api.github.com/repos/${GITHUB_PACKAGE}/releases/latest")
    RELEASES=$(curl --silent "https://api.github.com/repos/${GITHUB_PACKAGE}/releases")
    
    if [ -z "${VERSION}" ] || [ "${VERSION}" == "latest" ]; then
        DOWNLOAD_URL=$(echo ${LATEST_JSON} | jq .assets | jq -r .[].browser_download_url | grep -i ${MATCH})
    else
        VERSION_CHECK=$(echo ${RELEASES} | jq -r --arg VERSION "${VERSION}" '.[] | select(.tag_name==$VERSION) | .tag_name')
        if [ "${VERSION}" == "${VERSION_CHECK}" ]; then
            DOWNLOAD_URL=$(echo ${RELEASES} | jq -r --arg VERSION "${VERSION}" '.[] | select(.tag_name==$VERSION) | .assets[].browser_download_url' | grep -i ${MATCH})
        else
            echo -e "defaulting to latest release"
            DOWNLOAD_URL=$(echo ${LATEST_JSON} | jq .assets | jq -r .[].browser_download_url)
        fi
    fi
else
    if curl --output /dev/null --silent --head --fail ${DOWNLOAD_URL}.jar; then
        echo -e "Provided download link is valid. Proceeding to download"
    else
        echo -e "Provided download link is invalid. Exiting now"
        exit 2
    fi
fi

cd /mnt/server

echo "Downloading server file..."
echo -e "performing curl -sSL ${DOWNLOAD_URL}"
curl -sSL -o ${SERVER_JARFILE} ${DOWNLOAD_URL}

if [ ! -f "settings.yml" ]; then
echo "Creating settings file..."
curl -sSL -o settings.yml https://raw.githubusercontent.com/ptero-eggs/game-eggs/main/minecraft/java/nanolimbo/settings.yml
fi

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