#!/bin/bash

set -eEuo pipefail
trap 'echo "Error detected: aborting installation."' ERR

echo "Attempting to autodetect distro ..."
distro=$(lsb_release -is)
release=$(lsb_release -rs)
if [[ $distro == "Debian" ]]; then
    echo "Detected distro: Debian"
    if [[ $release =~ '^[0-9]+$' ]]; then
	echo "Detected release: $release"
    elif [[ $release == "testing" ]]; then
	echo "Detected release: testing"
	release=Testing
    else
	echo "Error: failed to detect release"
	exit 1
    fi
    echo "Installing podman ..."
    sudo apt install -y gnupg curl
    echo "deb https://download.opensuse.org/repositories/devel:/kubic:/libcontainers:/stable/Debian_${release:?}/ /" | sudo tee /etc/apt/sources.list.d/podman.list
    curl -L https://download.opensuse.org/repositories/devel:/kubic:/libcontainers:/stable/Debian_${release:?}/Release.key | sudo apt-key add -

    sudo apt update -y
    sudo apt install -y fuse-overlayfs slirp4netns podman
else
    echo "Error: failed to detect distro."
    exit 1
fi

echo "Copying scripts to /usr/local/bin ..."
# copy bin files to /usr/local/bin
sudo cp .install/bin/* /usr/local/bin/

echo "Installing containers startup service ..."
# install systemd startup service
sudo cp .install/containers-startup.service /etc/systemd/system/
sudo systemctl enable containers-startup.service
# create startup.sh if it doesn't exist
if [[ ! -f /etc/containers/startup.sh ]]; then
    printf "#!/bin/bash\n\n" | sudo tee /etc/containers/startup.sh > /dev/null
    echo "Installed containers startup script in /etc/containers/startup.sh"
    echo "Put any podman-related commands that should run on startup in that file."
else
    echo "Not overwriting /etc/containers/startup.sh as it already exists."
fi
sudo chmod +x /etc/containers/startup.sh

if id -u containers; then
    echo "Configuring user 'containers' ..."
    
echo 'Creating "containers" user ...'


echo "Install finished successfully."