---
# On Linux `multica daemon autostart enable` writes a systemd *user* unit.
# A user unit does not start at boot unless the user lingers — without this the
# daemon only comes back when someone logs in, which on a headless agent host
# is never.
- name: Daemon | Enable systemd lingering for the daemon user
  ansible.builtin.command:
    argv: ["loginctl", "enable-linger", "{{ multica_user }}"]
    creates: "/var/lib/systemd/linger/{{ multica_user }}"
  become: true
  when:
    - multica_enable_linger | bool
    - multica_autostart | bool

- name: Daemon | Wait for the user's runtime directory
  ansible.builtin.wait_for:
    path: "/run/user/{{ _multica_uid }}"
    state: present
    timeout: 30
  become: true
  when:
    - multica_enable_linger | bool
    - multica_autostart | bool

- name: Daemon | Read the current autostart registration
  ansible.builtin.command:
    argv: "{{ _multica_cmd + ['daemon', 'autostart', 'status'] }}"
  become: true
  become_user: "{{ multica_user }}"
  environment: "{{ _multica_user_env }}"
  register: _multica_autostart_status
  changed_when: false
  failed_when: false
  check_mode: false

- name: Daemon | Register boot autostart
  ansible.builtin.command:
    argv: "{{ _multica_cmd + ['daemon', 'autostart', 'enable'] }}"
  become: true
  become_user: "{{ multica_user }}"
  environment: "{{ _multica_user_env }}"
  when:
    - multica_autostart | bool
    - _multica_autostart_status.rc != 0
      or 'enabled' not in (_multica_autostart_status.stdout | default('') | lower)
  changed_when: true

- name: Daemon | Read daemon status
  ansible.builtin.command:
    argv: "{{ _multica_cmd + ['daemon', 'status', '--output', 'json'] }}"
  become: true
  become_user: "{{ multica_user }}"
  environment: "{{ _multica_user_env }}"
  register: _multica_daemon_status
  changed_when: false
  failed_when: false
  check_mode: false

- name: Daemon | Start it if it is not already running
  ansible.builtin.command:
    argv: "{{ _multica_cmd + ['daemon', 'start'] }}"
  become: true
  become_user: "{{ multica_user }}"
  environment: "{{ _multica_user_env }}"
  when: >-
    _multica_daemon_status.rc != 0
    or ((_multica_daemon_status.stdout | from_json).status | default('')) != 'running'
  changed_when: true

# Anything that changed the binary, the config or the credentials restarts the
# daemon here, before verification reads its state back.
- name: Daemon | Flush handlers
  ansible.builtin.meta: flush_handlers