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

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


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

# http://box:8080 & http://box:8080/mobile WORK BUT OTHER URL'S LIKE http://box/calibre ARE A MESS (BOOKS RARELY DISPLAY)
#
# 2018-08-27 POSSIBLE FIX...CONSIDER THIS ProxyPass / ProxyPassReverse TECHNIQUE:
# https://github.com/iiab/iiab/tree/master/roles/calibre-web/templates/calibre-web.conf.j2
#    (anyway this works great for calibre-web, allowing http://box/books
#    to work even better than http://box:8083 when box == 192.168.0.x !)
#
#- name: Attempt to enable http://box/calibre via Apache (UNTESTED)
#  command: a2ensite calibre.conf
#  when: apache_installed and calibre_enabled
#
#- name: Attempt to disable http://box/calibre via Apache (UNTESTED)
#  command: a2dissite calibre.conf
#  when: apache_installed and not calibre_enabled

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

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

#- name: Enable/Disable/Restart Apache if primary
#  include_tasks: apache.yml
#  when: not nginx_enabled
#
#- name: Enable/Disable/Restart NGINX if primary
#  include_tasks: nginx.yml
#  when: nginx_enabled


- name: Add 'calibre' variable values to {{ iiab_ini_file }}
  ini_file:
    path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini
    section: calibre
    option: "{{ item.option }}"
    value: "{{ item.value | string }}"
  with_items:
    - option: name
      value: Calibre
    - option: description
      value: '"Calibre is an extremely popular personal library system for e-books."'
    - option: calibre_src_url
      value: "{{ calibre_src_url }}"
    - option: calibre_dbpath
      value: "{{ calibre_dbpath }}"
    - option: calibre_port
      value: "{{ calibre_port }}"
    - option: calibre_enabled
      value: "{{ calibre_enabled }}"