#!/bin/sh
set -e

if ! command -v curl >/dev/null 2>&1; then
  echo "curl is required. Installing curl..."
  sudo apt update
  sudo apt install -y curl
fi

echo "Updating package index..."
sudo apt update

echo "Installing required packages..."
sudo apt install -y ca-certificates curl gnupg lsb-release

echo "Adding Docker's official GPG key..."
sudo mkdir -p /etc/apt/keyrings
curl -fsSL "https://download.docker.com/linux/$(
  . /etc/os-release
  echo "$ID"
)/gpg" | sudo gpg --dearmor >/tmp/docker.gpg
sudo mv /tmp/docker.gpg /etc/apt/keyrings/docker.gpg
sudo chmod 644 /etc/apt/keyrings/docker.gpg

echo "Setting up the Docker repository..."
ARCH=$(dpkg --print-architecture)
OS_ID=$(awk -F= '/^ID=/{gsub(/\"/, "", $2); print $2}' /etc/os-release)
RELEASE=$(lsb_release -cs)
echo "deb [arch=$ARCH signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/$OS_ID $RELEASE stable" |
  sudo tee /etc/apt/sources.list.d/docker.list >/dev/null

echo "Updating package index (with Docker repo)..."
sudo apt update

echo "Installing Docker Engine..."
sudo apt install -y docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin

echo "Docker installation complete!"
docker --version