---
- name: Check if zfs-linux-lts is installed
  command: pacman -Qi zfs-dkms
  register: zfs_dkms_installed
  changed_when: false
  failed_when: false

- name: Install zfs
  when: zfs_dkms_installed.stderr
  block:
    - name: disable SUDOERS password prompt for makepkg
      no_log: true
      lineinfile:
        dest: /etc/sudoers
        state: present
        regexp: "^#?%wheel"
        line: "%wheel ALL=(ALL) NOPASSWD: ALL"
        validate: /usr/sbin/visudo -cf %s

    # Note: I successfully tried zfs-linux-lts and zfs-linux-lts-headers, but
    # the next kernel upgrade failed: cyclic dependency.
    # Using dkms with the lts linux kernel is a better approach IMO.
    - name: Install zfs
      become: false
      command:
        cmd: "paru -S --noconfirm zfs-dkms zfs-utils"

    - name: Restore SUDOERS password prompt after yay
      no_log: true
      lineinfile:
        dest: /etc/sudoers
        state: present
        regexp: "^#?%wheel"
        line: "%wheel ALL=(ALL:ALL) ALL"
        validate: /usr/sbin/visudo -cf %s

- name: check if /etc/hostid is present
  stat:
    path: /etc/hostid
  register: hostid
  changed_when: false

- name: generate /etc/hostid if not present
  when: not hostid.stat.exists
  command: zgenhostid $(hostid)

- name: Check if zrepl is installed
  command: pacman -Qi zrepl
  register: zrepl_installed
  changed_when: false
  failed_when: false

- name: Install zrepl
  when: zrepl_installed.stderr
  block:
    - name: disable SUDOERS password prompt for makepkg
      no_log: true
      lineinfile:
        dest: /etc/sudoers
        state: present
        regexp: "^#?%wheel"
        line: "%wheel ALL=(ALL) NOPASSWD: ALL"
        validate: /usr/sbin/visudo -cf %s

    - name: Install zrepl
      become: false
      command:
        cmd: "paru -S --noconfirm zrepl"

    - name: Restore SUDOERS password prompt after paru
      no_log: true
      lineinfile:
        dest: /etc/sudoers
        state: present
        regexp: "^#?%wheel"
        line: "%wheel ALL=(ALL:ALL) ALL"
        validate: /usr/sbin/visudo -cf %s

- name: Enable zfs services
  service:
    name: "{{ item }}"
    enabled: true
    state: started
  loop:
    - zfs.target
    - zfs-import.target
    - zfs-volumes.target
    - zfs-import-scan.service
    - zfs-volume-wait.service
# Please note /etc/zfs/zpool.cache should not be present, as it is deprecated
# and we are using zfs-import-scan.service, which rely on blkid.