# "How do i fail a task in Ansible if the variable contains a boolean value?
# I want to perform input validation for Ansible playbooks"
# https://stackoverflow.com/questions/46664127/how-do-i-fail-a-task-in-ansible-if-the-variable-contains-a-boolean-value-i-want/46667499#46667499

# We assume 0-init/tasks/validate_vars.yml has DEFINITELY been run, so no need
# to re-check whether vars are defined here.  As Ansible vars cannot be unset:
# https://serverfault.com/questions/856729/how-to-destroy-delete-unset-a-variable-value-in-ansible

- name: Assert that "monit_install is sameas true" (boolean not string etc)
  assert:
    that: monit_install is sameas true
    fail_msg: "PLEASE SET 'monit_install: True' e.g. IN: /etc/iiab/local_vars.yml"
    quiet: yes

- name: Assert that "monit_enabled | type_debug == 'bool'" (boolean not string etc)
  assert:
    that: monit_enabled | type_debug == 'bool'
    fail_msg: "PLEASE GIVE VARIABLE 'monit_enabled' A PROPER (UNQUOTED) ANSIBLE BOOLEAN VALUE e.g. IN: /etc/iiab/local_vars.yml"
    quiet: yes


- block:

  # 2019-07-06: The 'monit' package was suddenly removed from Debian 10.0.0
  # "Buster" during the very final days prior to release, as confirmed by the
  # sudden disappearance of these 2 pages:
  #
  #   https://packages.debian.org/buster/monit
  #   https://packages.debian.org/source/buster/monit
  #
  # And yet Raspbian Buster (is_raspbian_10, which confusingly IIAB declares to
  # be is_debian_10 in vars/raspbian-10.yml for now!) still provides 'monit' via
  # apt -- so eliminating "Debian 10+" requires this funky conditional:

  # 2020-09-21: The 'monit' package appears to be returning to Debian 11, per:
  #
  #   https://packages.debian.org/bullseye/monit
  #   https://packages.debian.org/source/bullseye/monit
  #
  # SEE iiab/iiab#1849 re: "Debian 10 Buster no longer includes Monit" etc.

  - name: Install Monit if 'monit_installed' not defined, e.g. in {{ iiab_state_file }} AND not Debian 10    # /etc/iiab/iiab_state.yml
    include_tasks: install.yml
    when: monit_installed is undefined
    #when: monit_installed is undefined and not (is_debian_10 and not is_raspbian)
    #when: monit_installed is undefined and not ((is_debian and not is_raspbian) and (not is_debian_8) and (not is_debian_9))


  - include_tasks: enable-or-disable.yml


  - name: Add 'monit' variable values to {{ iiab_ini_file }}
    ini_file:
      path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini
      section: monit
      option: "{{ item.option }}"
      value: "{{ item.value | string }}"
    with_items:
      - option: name
        value: Monit
      - option: description
        value: '"Monit is a background service monitor which can correct problems, send email, restart services."'
      - option: enabled
        value: "{{ monit_enabled }}"

  rescue:

  - name: 'SEE ERROR ABOVE (skip_role_on_error: {{ skip_role_on_error }})'
    fail:
      msg: ""
    when: not skip_role_on_error
