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

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


- name: Install KA Lite if 'kalite_installed' not defined, e.g. in {{ iiab_state_file }}    # /etc/iiab/iiab_state.yml
  include_tasks: install.yml
  when: kalite_installed is undefined


- name: Enable & (Re)Start 'kalite-serve' service, if kalite_enabled
  systemd:
    daemon_reload: yes
    name: kalite-serve
    enabled: yes
    state: restarted
  when: kalite_enabled

- name: Disable & Stop 'kalite-serve' service, if not kalite_enabled
  systemd:
    name: kalite-serve
    enabled: no
    state: stopped
  when: not kalite_enabled


- name: Add 'kalite' variable values to {{ iiab_ini_file }}
  ini_file:
    path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini
    section: kalite
    option: "{{ item.option }}"
    value: "{{ item.value | string }}"
  with_items:
  - option: name
    value: "KA Lite"
  - option: description
    value: '"KA Lite downloads Khan Academy videos for offline use, with exercises and accounts if students want to track their own progress."'
  - option: path
    value: "{{ kalite_root }}"
  - option: port
    value: "{{ kalite_server_port }}"
  - option: kalite_enabled
    value: "{{ kalite_enabled }}"
