# 1. CREATE/VERIFY CRITICAL DIRECTORIES & FILES ARE IN PLACE
- name: Download Kiwix software to /opt/iiab/downloads
  get_url:
    url: "{{ iiab_download_url }}/{{ kiwix_src_file }}"
    dest: "{{ downloads_dir }}/{{ kiwix_src_file }}"
    timeout: "{{ download_timeout }}"
  when: internet_available | bool

- name: Check for /opt/iiab/downloads/{{ kiwix_src_file }}
  stat:
    path: "{{ downloads_dir }}/{{ kiwix_src_file }}"
  register: kiwix_src

- name: Create directory {{ iiab_zim_path }} and subdirs {content, index} for Kiwix ZIM files
  file:
    path: "{{ item }}"
    owner: root
    group: root
    mode: 0755
    state: directory
  with_items:
    - "{{ iiab_zim_path }}"
    - "{{ iiab_zim_path }}/content"
    - "{{ iiab_zim_path }}/index"

- name: Check for {{ kiwix_library_xml }}    # /library/zims/library.xml
  stat:
    path: "{{ kiwix_library_xml }}"
  register: kiwix_xml

- name: Install a stub /library/zims/library.xml if one doesn't exist
  template:
    src: library.xml
    dest: "{{ kiwix_library_xml }}"
    mode: 0644
    owner: root
    group: root
    force: no
  when: not kiwix_xml.stat.exists

- name: Install {{ iiab_zim_path }}/content/test.zim if kiwix_force_install
  copy:
    src: test.zim
    dest: "{{ iiab_zim_path }}/content/test.zim"
    mode: 0644
    owner: root
    group: root
    force: no
  when: kiwix_force_install | bool

- name: Create {{ kiwix_path }}/bin directory    # /opt/iiab/kiwix/bin
  file:
    path: "{{ kiwix_path }}/bin"
    owner: root
    group: root
    mode: 0755
    state: directory

# 2. INSTALL KIWIX-TOOLS EXECUTABLES IF kiwix_force_install

- name: Unarchive {{ kiwix_src_file }} to /tmp    # e.g. kiwix-tools_linux-armhf-0.6.1-1.tar.gz
  unarchive:
    src: "{{ downloads_dir }}/{{ kiwix_src_file }}"
    dest: /tmp
    owner: root
    group: root
  when: kiwix_force_install | bool

- name: Move /tmp/{{ kiwix_src_dir }}/* to permanent location /opt/iiab/kiwix/bin (armhf & linux64 & i686)
  shell: "mv /tmp/{{ kiwix_src_dir }}/* {{ kiwix_path }}/bin/"
  when: kiwix_force_install | bool

# 3. ENABLE MODS FOR APACHE PROXY IF DEBUNTU

# 2019-10-07: Moved to roles/httpd/tasks/main.yml
# 2019-09-29: Compare roles/kolibri/defaults/main.yml using just 1 (proxy_http)
#- name: Enable the 4 mods which permit Apache to proxy (debuntu)
#  apache2_module:
#    name: "{{ item }}"
#  with_items:
#    - proxy
#    - proxy_html
#    - proxy_http
#    - rewrite
#  when: is_debuntu | bool

# 4. CREATE/ENABLE/RESTART (OR DISABLE) KIWIX SERVICE & ITS CRON JOB

- name: 'Install from templates: kiwix-serve.service, iiab-make-kiwix-lib, iiab-make-kiwix-lib.py, kiwix.conf'
  template:
    backup: no
    src: "{{ item.src }}"
    dest: "{{ item.dest }}"
    owner: root
    group: root
    mode: "{{ item.mode }}"
  with_items:
    - { src: 'kiwix-serve.service.j2', dest: '/etc/systemd/system/kiwix-serve.service', mode: '0644'}
    - { src: 'iiab-make-kiwix-lib', dest: '/usr/bin/iiab-make-kiwix-lib', mode: '0755'}
    - { src: 'iiab-make-kiwix-lib.py', dest: '/usr/bin/iiab-make-kiwix-lib.py', mode: '0755'}
    - { src: 'kiwix.conf.j2', dest: '/etc/{{ apache_config_dir }}/kiwix.conf', mode: '0644'}

- name: Add 'kiwix_installed' variable values to {{ iiab_state_file }}
  lineinfile:
    dest: "{{ iiab_state_file }}"
    regexp: '^kiwix_installed'
    line: 'kiwix_installed: True'
    state: present