# We need a recent version of node

- name: FAIL (STOP INSTALLING) IF nodejs_version is not set to 10.x
  fail:
    msg: "Archorg install cannot proceeed, as it currently requires Node.js 10.x, and your nodejs_version is set to {{ nodejs_version }}.  Please check the value of nodejs_version in /opt/iiab/iiab/vars/default_vars.yml and possibly also /etc/iiab/local_vars.yml"
  when: distweb_install and (nodejs_version != "10.x")

- name: Clone distributed web mirror supported by Internet Archive
  git:
    repo: https://github.com/internetarchive/dweb-mirror
    dest: "{{ distweb_dir }}"
    force: yes
    depth: 1
  when: internet_available

- name: Install packages needed by Distributed Web
  package:
      name:
         - libsecret-1-dev
         - cmake
      state: present

- name: Run 'npm install --allow-root --unsafe-perm=true' to create /opt/iiab/distweb/node_modules (CAN TAKE ~5 MINUTES)
  command: npm install --allow-root --unsafe-perm=true
  args:
    chdir: "{{ distweb_dir }}"



# CONFIG FILES

- name: "Install from templates: distweb.service (systemd), distweb.conf (Apache)"
  template:
    src: "{{ item.src }}"
    dest: "{{ item.dest }}"
    mode: 0644
    owner: root
    group: root
  with_items:
    - { src: 'distweb.service.j2', dest: '/etc/systemd/system/distweb.service' }
    - { src: 'distweb.conf', dest: '/etc/apache2/sites-available/distweb.conf' }


- name: Create symlink distweb.conf from sites-enabled to sites-available, for short URLs http://box/sugar & http://box/distweb (if distweb_enabled)
  file:
    src: /etc/apache2/sites-available/distweb.conf
    path: /etc/apache2/sites-enabled/distweb.conf
    state: link
  when: distweb_enabled and is_debuntu

- name: Remove symlink /etc/apache2/sites-enabled/distweb.conf (if not distweb_enabled)
  file:
    path: /etc/apache2/sites-enabled/distweb.conf
    state: absent
  when: not distweb_enabled and is_debuntu


# RESTART/STOP SYSTEMD SERVICE

# with "systemctl daemon-reload" in case mongodb.service changed, etc
- name: Enable & Restart 'distweb' systemd service (if distweb_enabled)
  systemd:
    name: distweb
    daemon_reload: yes
    enabled: yes
    state: restarted
  when: distweb_enabled
  
- name: Disable & Stop 'distweb' systemd service (if not distweb_enabled)
  systemd:
    name: distweb
    daemon_reload: yes
    enabled: no
    state: stopped
  when: not distweb_enabled

- name: Restart Apache service ({{ apache_service }}) to enable/disable http://box/distweb (not just http://box:{{ distweb_port }})
  systemd:
    name: "{{ apache_service }}"    # httpd or apache2
    state: restarted
  when: distweb_enabled

- name: Add 'distweb' variable values to {{ iiab_ini_file }}
  ini_file:
    path: "{{ iiab_ini_file }}"
    section: distweb
    option: "{{ item.option }}"
    value: "{{ item.value }}"
  with_items:
    - option: name
      value: Archive Org Distributed Web
    - option: description
      value: '"Dweb-mirror is intended to make the Internet Archive experience and UI available offline."'
    - option: distweb_enabled
      value: "{{ distweb_enabled }}"