#!/bin/sh

###
#
# This script will download and install the latest release
# of boom - the Boomack Client CLI
#
# https://boomack.com
#
###

command_name="boom"
base_url="https://download.boomack.com/boom/latest"
prefix="/usr/local"

# detect platform

machine="$(uname -m)"
os="$(uname -o)"

arch="$machine"
platform=""
if [ "$machine" = "i686" ]; then
    if [ "$os" = "GNU/Linux" ]; then
        platform="unknown-linux-gnu"
    else
        >&2 echo "Sorry. Your platform is not supported."
        exit 1
    fi
elif [ "$machine" = "x86_64" ]; then
    if [ "$os" = "GNU/Linux" ]; then
        platform="unknown-linux-gnu"
    else
        platform="unknown-linux-musl"
    fi
elif [ "$machine" = "armv6l" ]; then
    arch="arm"
    if [ "$os" = "GNU/Linux" ]; then
        platform="unknown-linux-gnueabihf"
    else
        >&2 echo "Sorry. Your platform is not supported."
        exit 1
    fi
elif [ "$machine" = "armv7l" ]; then
    arch="armv7"
    if [ "$os" = "GNU/Linux" ]; then
        platform="unknown-linux-gnueabihf"
    else
        >&2 echo "Sorry. Your platform is not supported."
        exit 1
    fi
elif [ "$machine" = "aarch64" ]; then
    if [ "$os" = "Android" ]; then
        platform="aarch64-linux-android"
    else
        >&2 echo "Sorry. Your platform is not supported."
        exit 1
    fi
    # elif [ "$os" = "GNU/Linux" ]; then
    #     platform="aarch64-unknown-linux-gnu"
    # else
    #     platform="aarch64-unknown-linux-musl"
    # fi
else
    >&2 echo "Sorry. Your platform is not supported."
    exit 1
fi

name="${command_name}_$arch-$platform"
url="$base_url/$name.gz"

# echo "Architectur: $arch"
# echo "Platform:    $platform"
# echo "URL:         $url"

location="$(pwd)"
cd $HOME

# detect http client and download archive and checksum

if command -v curl 2>&1 >/dev/null; then
    echo "Downloading compressed binary..."
    curl -o "$name.gz" "$url"
    if [ $? -ne 0 ]; then
        >&2 echo "Downloading compressed binary failed."
        if [ -f "$name.gz" ]; then rm "$name.gz"; fi
        cd "$location"
        exit 3
    fi
    echo "Downloading checksum file..."
    curl -o "$name.gz.sha256" "$url.sha256"
    if [ $? -ne 0 ]; then
        >&2 echo "Downloading checksum file failed."
        if [ -f "$name.gz.sha256" ]; then rm "$name.gz.sha256"; fi
        cd "$location"
        exit 3
    fi
elif command -v wget 2>&1 >/dev/null; then
    echo "Downloading compressed binary..."
    wget -q --show-progress -O "$name.gz" "$url"
    if [ $? -ne 0 ]; then
        >&2 echo "Downloading compressed binary failed."
        if [ -f "$name.gz" ]; then rm "$name.gz"; fi
        cd "$location"
        exit 3
    fi
    echo "Downloading checksum file..."
    wget -q --show-progress -O "$name.gz.sha256" "$url.sha256"
    if [ $? -ne 0 ]; then
        >&2 echo "Downloading checksum file failed."
        if [ -f "$name.gz.sha256" ]; then rm "$name.gz.sha256"; fi
        cd "$location"
        exit 3
    fi
else
    >&2 echo "No HTTP client found. Install wget or cURL and try again."
    cd "$location"
    exit 2
fi

# check checksum

echo "Checking file integrity..."
if ! sha256sum -c "$name.gz.sha256"; then
    >&2 echo "Downloaded files are currupted."
    if [ -f "$name.gz" ]; then rm "$name.gz"; fi
    if [ -f "$name.gz.sha256" ]; then rm "$name.gz.sha256"; fi
    cd "$location"
    exit 4
fi
rm "$name.gz.sha256"

# decompress file

echo "Inflating file..."
if ! gzip -d -f "$name.gz"; then
    >&2 echo "Inflating file failed."
    if [ -f "$name.gz" ]; then rm "$name.gz"; fi
    if [ -f "$name" ]; then rm "$name"; fi
    cd "$location"
    exit 5
fi

# installing file

echo "Installing $command_name command into $prefix/bin..."
if ! ( mv "$name" $command_name && sudo install $command_name "$prefix/bin" ); then
    >&2 echo "Installing the $command_name command into $prefix/bin failed."
    if [ -f "$name" ]; then rm "$name"; fi
    if [ -f "./$command_name" ]; then rm "./$command_name"; fi
    cd "$location"
    exit 6
fi
rm "./$command_name"

# show version number
echo "Showing version number..."
if ! boom --version; then
    >&2 echo "Boomack Client CLI did not work properly. Removing it."
    sudo rm "$prefix/bin/$command_name"
    cd "$location"
    exit 7
fi

# cleanup

if [ -f "$name.gz.sha256" ]; then rm "$name.gz.sha256"; fi
if [ -f "$name.gz" ]; then rm "$name.gz"; fi
if [ -f "$name" ]; then rm "$name"; fi
if [ -f "./$command_name" ]; then rm "./$command_name"; fi
cd "$location"
echo "Finished."