---
# Copyright (C) 2022 Robert Wimmer
# SPDX-License-Identifier: GPL-3.0-or-later

- name: Verify setup
  hosts: all
  vars:
    hosts_count: "{{ groups['vpn'] | length }}"
  tasks:
    - name: Count WireGuard interfaces
      ansible.builtin.shell: |
        set -o errexit
        set -o pipefail
        set -o nounset
        wg | grep "peer: " | wc -l
        exit 0
      args:
        executable: "/bin/bash"
      register: wireguard__interfaces_count
      changed_when: false

    - name: Print WireGuard interface count
      ansible.builtin.debug:
        var: wireguard__interfaces_count.stdout

    - name: Print hosts count in vpn group
      ansible.builtin.debug:
        var: hosts_count

    - name: There should be as much WireGuard interfaces as hosts in vpn group minus one
      ansible.builtin.assert:
        that:
          - "hosts_count|int -1 == wireguard__interfaces_count.stdout|int"