#!/bin/env bash

dyfi_dir=$(dirname "$(realpath "$0")")
install_dir='/opt/dyfi/'

copy_service_script=':';
print_cmd=false;

for arg in $*; do
    case $arg in
        '--openrc')
            copy_service_script='cp ./dyfi-openrc.sh /etc/init.d/dyfi'
            ;;
        '--print-cmd')
            print_cmd=true
            ;;
    esac
done

cmd=''
read -r -d '' cmd <<-CMD
    set -e;

    alias 'cp'='cp --verbose';
    alias 'mkdir'='mkdir --verbose';

    cd "$dyfi_dir";

    mkdir -p /opt/dyfi;
    cp ./auth "$install_dir";
    cp ./dyfi.py "$install_dir";
    cp ./run.sh "$install_dir";
    cp ./requirements.txt "$install_dir";

    "$copy_service_script";

    cd "$install_dir";

    python -m venv ./venv;
    . ./venv/bin/activate;
    python -m ensurepip;
    pip install --upgrade pip;
    pip install -r ./requirements.txt;

    ln -sf "$install_dir"/run.sh /usr/bin/dyfi
CMD

if [ $print_cmd == true ]; then
    echo "$cmd"
else
    sudo -- env bash -e -c "$cmd"
    if [ $? != 0 ]; then
        ./uninstall.sh
        echo ''
        echo "Installation failed"
    fi

    echo ''
    echo "Dyfi installed to "$install_dir""
fi