# "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


# 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 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 }}"