#!/bin/bash

# Define directories and files
REPO_DIR="$HOME/GR-Jukebox"
VERSION_FILE_PATH="$REPO_DIR/version.txt"
INSTALLED_VERSION_FILE="$HOME/version.txt"

# Function to get version from a file
get_version() {
    if [[ -f "$1" ]]; then
        cat "$1"
    else
        echo "0"
    fi
}

# Read the currently installed version and the version in the repository
INSTALLED_VERSION=$(get_version "$INSTALLED_VERSION_FILE")
REPO_VERSION=$(get_version "$VERSION_FILE_PATH")

# Check network connectivity to github.com
while ! ping -c 1 -W 1 git-codecommit.us-east-2.amazonaws.com > /dev/null; do
    echo "Waiting for amazonaws.com - network interface might be down..."
    sleep 1
done

# Fetch and compare the latest version on GitHub without pulling all files
cd "$REPO_DIR"
git fetch origin
REMOTE_VERSION=$(git show origin/master:version.txt)

if [[ "$INSTALLED_VERSION" != "$REMOTE_VERSION" ]]; then
    echo "New version available on AWS. Starting download in background."
    # Pull the latest changes from the remote repository
    ( git pull origin master & )
fi