#!/bin/bash

## File: Pterodactyl OpenRCT2 Egg - egg-openrct2.json
## Authors: David Wolfe (Red-Thirten), ptero-eggs
## Date: 2022/06/28
## License: MIT License

GITHUB_PACKAGE="OpenRCT2/OpenRCT2"
MATCH="linux-x86_64.AppImage"
DEFAULT_SAVE="https://raw.githubusercontent.com/ptero-eggs/game-eggs/main/openrct2/save.park"

## OpenRCT2 Install
apt -y update
[ ! -d /mnt/server ] && mkdir /mnt/server
cd /mnt/server
# Remove existing installation if present
[ -d OpenRCT2 ] && rm -rf OpenRCT2
# Setup OpenRCT2 directory
mkdir -p OpenRCT2/data
# Setup temp directory for building and move to it
[ -d temp ] && rm -rf temp
mkdir temp && cd temp

# Determine if installing from source or from release
if [ "${VERSION}" == "develop" ]; then
    # Get required packages
    apt -y install curl git make cmake gcc build-essential libicu-dev pkg-config libcurl4-openssl-dev libcrypto++-dev libpng-dev libssl-dev libzip-dev duktape-dev nlohmann-json3-dev
    echo -e "\nInstalling/Updating OpenRCT2 from source...\n"
    
    # Clone the branch and check if successful
    git clone --branch "${VERSION}" https://github.com/${GITHUB_PACKAGE}
    if [ ! -d OpenRCT2 ]; then
        echo -e "\nFailed to clone \"${VERSION}\" branch from https://github.com/${GITHUB_PACKAGE}\n"
        exit 1
    fi
    
    cd OpenRCT2
    mkdir build && cd build
    # Prepare CMake files for a lightweight and CLI-only build of OpenRCT2, using the appropriate flags
    cmake .. -DCMAKE_BUILD_TYPE=Release -DBUILD_SHARED_LIBS=ON -DPORTABLE=ON -DCMAKE_POSITION_INDEPENDENT_CODE=ON -DCMAKE_CXX_FLAGS="-g -gz" -DDISABLE_TTF=ON -DDISABLE_GOOGLE_BENCHMARK=ON -DDISABLE_DISCORD_RPC=ON -DDISABLE_GUI=ON
    echo -e "\nBuilding OpenRCT2 package from source...\n\tThis process can take quite some time. Grab a coffee :)\n"
    # Build OpenRCT2
    DESTDIR=. make install
    # Check if build was successful
    if [ ! -d usr/local ]; then
        echo -e "\nFailed to successfully build OpenRCT2!\n"
        exit 1
    fi
    
    # Make executable-ready package by moving compiled files to the correct locations
    cd usr/local
    mv bin/* /mnt/server/OpenRCT2/
    mv share/openrct2/* share/openrct2-cli/* /mnt/server/OpenRCT2/data/
    mv share/doc /mnt/server/OpenRCT2/
    echo -e "\nBuild of OpenRCT2 package complete!"
else
    # Get required packages
    apt install -y curl jq
    echo -e "\nInstalling/Updating OpenRCT2 from release tag \"${VERSION}\"...\n"
    
    # This is a simple script to use the GitHub API for release versions.
    # This requires the egg has a variable for GITHUB_PACKAGE, VERSION and MATCH (MATCH is to match the filename in some way).
    # 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 ${MATCH})
        else
            DOWNLOAD_URL=$(echo ${LATEST_JSON} | jq .assets | jq -r .[].browser_download_url)
        fi
    fi
    # Download the release and check if successful
    curl -L ${DOWNLOAD_URL} -o OpenRCT2.AppImage
    if [ ! -f OpenRCT2.AppImage ]; then
        echo -e "\nFailed to download release: ${DOWNLOAD_URL}\n"
        exit 1
    fi
    
    chmod +x OpenRCT2.AppImage
    # Extract AppImage and check if successful
    echo -e "Extracting AppImage files..."
    ./OpenRCT2.AppImage --appimage-extract
    if [ ! -d squashfs-root/usr ]; then
        echo -e "\nFailed to extract AppImage!\n\t(Is the `MATCH` variable set to download an AppImage?)\n"
        exit 1
    fi
    
    # Move needed files to correct directories
    cd squashfs-root/usr
    mv lib bin/openrct2-cli /mnt/server/OpenRCT2/
    mv share/openrct2/* /mnt/server/OpenRCT2/data/
    mkdir /mnt/server/OpenRCT2/doc && mv share/doc/openrct2 $_
    echo -e "\nDownload/Update of OpenRCT2 release successful!"
fi

cd /mnt/server
rm -rf temp # Clean up temp building directory

## OpenRCT2 Setup
# Setup ServerData/save directory
[ ! -d ServerData/save ] && mkdir -p ServerData/save
cd ServerData/save
# Download default save.park if missing
if [ ! -f save.park ]; then
    echo -e "Downloading default save.park file from ${DEFAULT_SAVE}"
    curl -sSLO ${DEFAULT_SAVE}
fi

echo -e "\nOpenRCT2 Successfully Installed!"