{{- if ne .host.distro.family "windows" -}}
#!/usr/bin/env bash

{{ includeTemplate "universal/profile-before" }}
{{ includeTemplate "universal/logg-before" }}

### Install Docker
if [ -d /Applications ] && [ -d /System ]; then
    # macOS
    if [ ! -d /Applications/Docker.app ]; then
        logg info 'Installing Docker on macOS via Homebrew cask'
        brew install --cask docker
    else
        logg info 'Docker appears to be installed already'
    fi
    logg info 'Opening the Docker for Desktop app so that the Docker engine starts running'
    open --background -a Docker
elif command -v apt-get > /dev/null; then
    . /etc/os-release
    if [ "$ID" == 'ubuntu' ]; then
        logg info 'Installing Docker on Ubuntu'
    else
        logg info 'Installing Docker on Debian'
    fi
    sudo apt-get update
    sudo apt-get install -y ca-certificates curl gnupg lsb-release
    sudo mkdir -p /etc/apt/keyrings
    curl -fsSL "https://download.docker.com/linux/$ID/gpg" | sudo gpg --dearmor --yes -o /etc/apt/keyrings/docker.gpg
    sudo chmod a+r /etc/apt/keyrings/docker.gpg
    echo "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/$ID $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
    sudo apt-get update
    sudo apt-get install -y docker-ce docker-ce-cli containerd.io docker-compose-plugin
elif command -v dnf > /dev/null; then
    . /etc/os-release
    if [ "$ID" == 'centos' ]; then
        logg info 'Installing Docker on CentOS'
    elif [ "$ID" == 'fedora' ]; then
        logg info 'Installing Docker on Fedora'
    else
        logg error 'Unknown OS - cannot install Docker' && exit 1
    fi
    sudo dnf -y install dnf-plugins-core
    sudo dnf config-manager --add-repo "https://download.docker.com/linux/$ID/docker-ce.repo"
    sudo dnf install -y docker-ce docker-ce-cli containerd.io docker-compose-plugin
elif command -v yum > /dev/null; then
    # CentOS
    logg info 'Installing Docker on CentOS'
    sudo yum install -y yum-utils
    sudo yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
    sudo yum install -y docker-ce docker-ce-cli containerd.io docker-compose-plugin
elif command -v apk > /dev/null; then
    # Alpine
    logg info 'Installing Docker on Alpine'
    sudo apk add --update docker
elif command -v pacman > /dev/null; then
    # Archlinux
    logg info 'Installing Docker on Archlinux'
    sudo pacman -Syu
    sudo pacman -S docker
elif command -v zypper > /dev/null; then
    # OpenSUSE
    logg info 'Installing Docker on OpenSUSE'
    sudo zypper addrepo https://download.docker.com/linux/sles/docker-ce.repo
    sudo zypper install docker-ce docker-ce-cli containerd.io docker-compose-plugin
fi

### Add Docker group on Linux
if command -v groupadd > /dev/null; then
    # Linux
    if ! cat /etc/group | grep docker > /dev/null; then
        logg info 'Creating Docker group'
        sudo groupadd docker
    fi
    logg info 'Adding user to Docker group'
    sudo usermod -aG docker "$USER"
fi

### Boot Docker on start with systemd on Linux machines
if command -v systemctl > /dev/null; then
    # Systemd Linux
    sudo systemctl start docker.service
    sudo systemctl enable docker.service
    sudo systemctl enable containerd.service
fi

### Add gVisor
if [ ! -d /Applications ] || [ ! -d /System ]; then
    # Linux
    if ! command -v runsc > /dev/null; then
        # Install gVisor
        logg info 'Building gVisor from source'
        if [ -d /usr/local/src/gvisor ]; then
            logg info 'Removing stale directory /usr/local/src/gvisor'
            sudo rm -rf /usr/local/src/gvisor
        fi
        sudo git clone https://github.com/google/gvisor.git /usr/local/src/gvisor
        cd /usr/local/src/gvisor
        sudo mkdir -p bin
        sudo make copy TARGETS=runsc DESTINATION=bin/
        sudo cp ./bin/runsc /usr/local/bin
    fi

    if [ ! -f /etc/docker/daemon.json ]; then
        # Configure Docker to use gVisor
        # Create /etc/docker/daemon.json
        logg info 'Creating /etc/docker'
        sudo mkdir -p /etc/docker
        if [ -f /usr/local/src/install.doctor/home/dot_config/docker/daemon.json ]; then
            logg info 'Creating /etc/docker/daemon.json'
            sudo cp "/usr/local/src/install.doctor/home/dot_config/docker/daemon.json" /etc/docker/daemon.json
        else
            logg warn '/usr/local/src/install.doctor/home/dot_config/docker/daemon.json is not available so the /etc/docker/daemon.json file cannot be populated'
        fi
    fi
fi

{{ end -}}