#!/bin/bash

# Set SUDO prefix
if [ "$EUID" -ne 0 ]; then
    SUDO="sudo"
else
    SUDO=""
fi

echo -e "\n>>> Updating system...\n"
$SUDO apt update

echo -e "\n>>> Upgrading system...\n"
$SUDO apt upgrade -y

echo -e "\n>>> Installing Docker...\n"

$SUDO apt install -y ca-certificates curl
$SUDO install -m 0755 -d /etc/apt/keyrings
$SUDO curl -fsSL https://download.docker.com/linux/debian/gpg -o /etc/apt/keyrings/docker.asc
$SUDO chmod a+r /etc/apt/keyrings/docker.asc

echo -e "\n>>> Adding Docker repository...\n"

$SUDO tee /etc/apt/sources.list.d/docker.sources > /dev/null <<EOF
Types: deb
URIs: https://download.docker.com/linux/debian
Suites: $(. /etc/os-release && echo "$VERSION_CODENAME")
Components: stable
Architectures: $(dpkg --print-architecture)
Signed-By: /etc/apt/keyrings/docker.asc
EOF

$SUDO apt update

echo -e "\n>>> Installing Docker packages...\n"

$SUDO apt install -y docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin

echo -e "\n>>> Docker installation complete!\n"