- name: Install useful software
  ansible.builtin.apt:
    name: "{{ packages }}"
    state: present
    update_cache: true

- name: Install GPG
  ansible.builtin.apt:
    name: gpg
    state: present

- name: Check for existing GPG keys
  command: "gpg --list-keys {{ item.id }} 2>/dev/null"
  register: gpg_check
  loop: "{{ root_gpgkeys }}"
  failed_when: false
  changed_when: false
  when: root_gpgkeys is defined

- name: Import GPG keys
  command: "gpg --keyserver {{ item.item.server | default('keys.openpgp.org') }} --recv-key {{ item.item.id }}"
  register: gpg_check_import
  loop: "{{ gpg_check.results }}"
  loop_control:
    label: "{{ item.item }}"
  when: root_gpgkeys is defined and item.rc != 0

- name: Check GPG key imports
  fail:
    msg: "{{ item.stderr }}"
  loop: "{{ gpg_check_import.results }}"
  loop_control:
    label: "{{ item.item.item }}"
  when: root_gpgkeys is defined and (item.skipped | default(false) == false) and ('imported' not in item.stderr)

- name: Install NTPsec
  ansible.builtin.apt:
    name: ntpsec
    state: present

- name: Install locales
  ansible.builtin.apt:
    name: locales
    state: present

- name: Generate locale
  community.general.locale_gen:
    name: "{{ locale_default }}"
    state: present
  register: locale_gen_output

- name: Set the default locale
  ansible.builtin.lineinfile:
    path: /etc/default/locale
    regexp: "^LANG="
    line: "LANG={{ locale_default }}"

- name: Reconfigure locales
  ansible.builtin.command: dpkg-reconfigure -f noninteractive locales
  when: locale_gen_output.changed

- name: Manage root authorized_keys
  ansible.builtin.template:
    src: authorized_keys.j2
    dest: /root/.ssh/authorized_keys
    mode: 0400
  when: authorized_keys is defined

- name: Create system users
  ansible.builtin.user:
    name: "{{ item.name }}"
    state: present
    shell: "{{ item.shell | default('/bin/bash') }}"
    create_home: "{{ item.home | default(false) }}"
  loop: "{{ users }}"
  when: users is defined

- name: Set authorized_keys for system users
  ansible.posix.authorized_key:
    user: "{{ item.key }}"
    key: "{{ item.value.key }}"
    state: present
  loop: "{{ users }}"
  when: users is defined and item.value.key is defined

- name: Manage filesystem mounts
  ansible.posix.mount:
    path: "{{ item.path }}"
    src: "UUID={{ item.uuid }}"
    fstype: "{{ item.fstype }}"
    state: mounted
  loop: "{{ mounts }}"
  when: mounts is defined