#!/usr/bin/env bash
# This script downloads the latest release from `releases` and installs it to root directory.
set -e

tarball_name="Linux.tar.gz"
# tarball_url="https://kriss.run/new/releases/$tarball_name"
tarball_url="http://kriss.run/new/releases/Linux.tar.gz"

__cleanup() {
    echo "Removing $tarball_name..."
    rm -f "$tarball_name"
    rm -rf Linux
}

__install() {

    # Download the latest tarball
    wget "$tarball_url" -O "$tarball_name"

    # Check if the download was successful
    if [ ! -f "$tarball_name" ]; then
        echo "Failed to download the tarball from $tarball_url"
        exit 1
    fi

    # Check if the tarball is valid
    if ! tar -tzf "$tarball_name" > /dev/null 2>&1; then
        echo "The downloaded tarball is not valid or corrupted."
        __cleanup
        exit 1
    fi

    # Extract the tarball to the root directory and verbosely output every file extracted with location
    echo "Extracting $tarball_name to the $(pwd -P)..."
    tar -xzvf "$tarball_name"

    # Check if the extraction was successful
    if [ $? -ne 0 ]; then
        echo "Failed to extract the tarball."
        __cleanup
        exit 1
    fi

    for dir in Linux/*/; do
        dirname=$(basename "$dir")
        echo "Copying contents of ${dir}* to /${dirname}/*..."
        # Copy contents of each directory to the corresponding root directory
        if [ -d "/${dirname}" ]; then
            # rsync -av "$dir" "/"
            cp -r "${dir}"* "/${dirname}/"
        else
            echo "Directory /${dirname} does not exist... Skipping."
        fi
    done

    # Remove the tarball after extraction
    __cleanup
    echo "Latest release has been successfully installed to the root directory."

}

__install