---
# Prometheus NUT exporter (optional, gated by nut_prometheus_exporter_enabled).
# Installs prometheus-nut-exporter (AUR) and points it at the local upsd via
# the unit's EnvironmentFile (/etc/conf.d/prometheus-nut-exporter).

- name: Install prometheus-nut-exporter (AUR via paru)
  ansible.builtin.command: "paru -S --noconfirm --needed {{ nut_prometheus_exporter_package }}"
  register: _nut_prometheus_exporter_install
  changed_when: "'there is nothing to do' not in _nut_prometheus_exporter_install.stdout | lower"
  when: ansible_facts['os_family'] == 'Archlinux'

- name: Remove legacy exporter systemd override
  ansible.builtin.file:
    path: "/etc/systemd/system/{{ nut_prometheus_exporter_service }}.service.d"
    state: absent
  notify: Reload systemd

- name: Deploy exporter environment file
  ansible.builtin.template:
    src: nut-exporter-env.conf.j2
    dest: "{{ nut_prometheus_exporter_env_file }}"
    owner: root
    group: root
    mode: "0600"
  notify: Restart NUT exporter

- name: Enable and start exporter
  ansible.builtin.systemd:
    name: "{{ nut_prometheus_exporter_service }}"
    enabled: true
    state: started
    daemon_reload: true