---
- name: Register existence of Borgmatic cron file.
  cron:
    name: "{{ borgmatic_timer_cron_name }}"
    cron_file: "{{ borgmatic_timer_cron_name }}"
    state: absent
  check_mode: true
  register: cron_file_exists
  ignore_errors: true

- name: Ensure no Borgmatic Cron file exists.
  ansible.builtin.assert:
    that:
      - not cron_file_exists.changed
      - not cron_file_exists.failed or "Failed to find" in cron_file_exists.msg
    fail_msg: Found an existing Borgmatic Cron job. Please remove before using Systemd timer.

- name: Create borgbackup timer
  block:
    - name: Copy systemd files
      ansible.builtin.template:
        src: "{{ item.src }}"
        dest: "{{ item.dest }}"
        owner: root
        group: root
        backup: true
        mode: "{{ item.mode }}"
      with_items:
        - { src: "borgmatic.timer.j2", dest: "/usr/lib/systemd/system/borgmatic.timer", mode: "0644" }
        - { src: "borgmatic.service.j2", dest: "/usr/lib/systemd/system/borgmatic.service", mode: "0644" }

    - name: Reload systemd daemon
      ansible.builtin.systemd:
        daemon_reload: true

    - name: Enable and start borgmatic timer
      when: borgmatic_timer_enabled | default(true) | bool
      ansible.builtin.systemd:
        name: borgmatic.timer
        state: started
        enabled: true

    - name: Disable borgmatic timer
      when: not (borgmatic_timer_enabled | default(true) | bool)
      block:
        - name: Stop and disable borgmatic.timer
          ansible.builtin.systemd:
            name: borgmatic.timer
            state: stopped
            enabled: false

        - name: Show hints
          ansible.builtin.debug:
            msg: >-
              Attention: borgmatic_timer_enabled is set to false.
              The systemd timer (borgmatic.timer) is not activated.
              Enable it manually with: systemctl enable --now borgmatic.timer
...