#!/bin/bash

set -eu

# List of entries: "executable[:package]"
entries=(
  "podman"
  "podman-compose"
  "dig:bind9-dnsutils"

)

missing_packages=()

echo "Checking required executables..."

for entry in "${entries[@]}"; do
  IFS=":" read -r cmd pkg <<< "$entry"

  # If pkg is empty (no colon found), default package name to executable name
  if [ -z "$pkg" ]; then
    pkg="$cmd"
  fi

  if [ -x "$(command -v "$cmd")" ]; then
    echo "[FOUND] Executable '$cmd' found."
  else
    echo "[MISSING] Executable '$cmd' NOT found."
    missing_packages+=("$pkg")
  fi
done

echo

if [ ${#missing_packages[@]} -eq 0 ]; then
  echo "All executables found."
else
  echo >&2 "Missing ${#missing_packages[@]} executables."
  echo >&2 "Suggested command to install missing packages:"
  echo >&2 "sudo apt install --no-install-recommends ${missing_packages[*]}"
  exit 1
fi