#!/bin/bash

# Validate OAT version
if [[ -z "$OAT_VERSION" ]]; then
    echo "No OAT version was specified, please set the OAT_VERSION environment variable."
    exit 1
fi

# Construct the download URL
DOWNLOAD_URL="https://github.com/Laupetin/OpenAssetTools/releases/download/v${OAT_VERSION}/oat-linux.tar.gz"

echo "Downloading OAT from: $DOWNLOAD_URL"

# Define temporary directory
TEMP_DIR="/tmp/oat_download"

# Create temporary directory if it doesn't exist
mkdir -p "$TEMP_DIR"

# Download the tar.gz file to the temporary directory
curl -L -o "${TEMP_DIR}/oat-linux.tar.gz" "$DOWNLOAD_URL"

# Extract the contents of the tar.gz file
tar -xzf "${TEMP_DIR}/oat-linux.tar.gz" -C "${TEMP_DIR}"

# Copy the executables to /usr/local/bin and make them executable
sudo cp "${TEMP_DIR}/Linker" "${TEMP_DIR}/Unliker" /usr/local/bin/
sudo chmod +x /usr/local/bin/Linker /usr/local/bin/Unliker

# Clean up temporary directory
rm -rf "$TEMP_DIR"

echo "OpenAssetTools version $OAT_VERSION has been installed."

Linker --help