- name: Install Mastodon dependency repository keys
  apt_key: url={{ item }} state=present
  with_items:
    - "https://dl.yarnpkg.com/debian/pubkey.gpg"
    - "https://deb.nodesource.com/gpgkey/nodesource.gpg.key"
  tags:
    - dependencies

- name: Install Mastodon dependency repositories
  apt_repository: repo={{ item }} state=present
  become: yes
  with_items:
    - "deb https://dl.yarnpkg.com/debian/ stable main"
    - "deb https://deb.nodesource.com/node_8.x {{ ansible_distribution_release }} main"
  tags:
    - dependencies

- name: Install Mastodon dependencies from official repositories
  apt:
    name: "{{ packages }}"
    state: present
    update_cache: yes
  vars:
    packages:
    - autoconf
    - bison
    - build-essential
    - curl
    - cron
    - ffmpeg
    - file
    - g++
    - gcc
    - git
    - python
    - imagemagick
    - libffi-dev
    - libgdbm-dev
    - libicu-dev
    - libidn11-dev
    - libncurses5-dev
    - libpq-dev
    - libprotobuf-dev
    - libreadline-dev
    - libssl-dev
    - libxml2-dev
    - libxslt1-dev
    - libyaml-dev
    - nodejs
    - pkg-config
    - protobuf-compiler
    - yarn
    - zlib1g-dev
    - python-psycopg2
    - redis-server
    - redis-tools
  tags:
    - dependencies

- name: nodejs alternative
  alternatives:
    name: node
    link: /usr/bin/node
    path: /usr/bin/nodejs
  tags:
    - dependencies

- name: Create Mastodon user
  user:
    name: mastodon
    createhome: true
    shell: /bin/bash
    home: /home/mastodon

- name: Stop old mastodon services
  service: name={{ item }} state=stopped
  with_items:
    - mastodon-web
    - mastodon-streaming
    - mastodon-sidekiq
  ignore_errors: True

- name: Clone rbenv
  git:
    repo: "https://github.com/rbenv/rbenv.git"
    dest: "~/.rbenv"
    clone: true
    version: "{{ rbenv_version }}"
  become: true
  become_user: mastodon

- name: Clone ruby-build
  git:
    repo: "https://github.com/rbenv/ruby-build.git"
    dest: "~/.rbenv/plugins/ruby-build"
    clone: true
    version: "{{ ruby_build_version }}"
  register: ruby_build
  become: true
  become_user: mastodon

- name: Configure rbenv
  command: ./configure
  args:
    chdir: "~/.rbenv/src"
  register: rbenv_configure
  become: true
  become_user: mastodon

- name: Build rbenv
  command: make
  args:
    chdir: "~/.rbenv/src"
  when: rbenv_configure is succeeded
  become: true
  become_user: mastodon

- name: Update profile settings
  copy:
    dest: "~/.bashrc"
    content: |
      export PATH="~/.rbenv/bin:${PATH}"
      eval "$(rbenv init -)"
  become: true
  become_user: mastodon

- name: Check if the Ruby version is already installed
  shell: "~/.rbenv/bin/rbenv versions | grep -q {{ ruby_version }}"
  register: ruby_installed
  ignore_errors: yes
  check_mode: no
  become: true
  become_user: mastodon

- name: Install Ruby {{ ruby_version }}
  shell: "~/.rbenv/bin/rbenv install {{ ruby_version }}"
  args:
    executable: /bin/bash
  when: ruby_installed is failed
  become: true
  become_user: mastodon

- name: Set the default Ruby version to {{ ruby_version }}
  shell: "~/.rbenv/bin/rbenv global {{ ruby_version }}"
  args:
    executable: /bin/bash
  register: default_ruby_version
  become: true
  become_user: mastodon

- name: Install bundler
  shell: 'export PATH="$HOME/.rbenv/bin:$PATH"; eval "$(rbenv init -)"; gem install bundler'
  args:
    executable: /bin/bash
  when: default_ruby_version is succeeded
  become: true
  become_user: mastodon

- name: Clone mastodon
  git:
    repo: "https://github.com/tootsuite/mastodon.git"
    dest: "/home/mastodon/mastodon"
    clone: true
  become: true
  become_user: mastodon

- name: Update to latest version
  shell: "git fetch; git checkout $(git tag -l | grep -v 'rc[0-9]*$' | sort -V | tail -n 1)"
  args:
    chdir: "/home/mastodon/mastodon"
  become: true
  become_user: mastodon

- name: Bundle install
  shell: "~/.rbenv/shims/bundle install -j$(getconf _NPROCESSORS_ONLN) --deployment --with development --without test"
  args:
    chdir: "/home/mastodon/mastodon"
  become: true
  become_user: mastodon

- name: Yarn install
  command: yarn install --pure-lockfile
  args:
    chdir: "/home/mastodon/mastodon"
  become: true
  become_user: mastodon

- name: Install systemd sidekiq Service Files
  copy:
    src: etc_systemd_system_mastodon-sidekiq.service
    dest: /etc/systemd/system/mastodon-sidekiq.service
    owner: root
    group: root

- name: Install systemd web Service Files
  copy:
    src: etc_systemd_system_mastodon-web.service
    dest: /etc/systemd/system/mastodon-web.service
    owner: root
    group: root

- name: Install systemd streaming Service Files
  copy:
    src: etc_systemd_system_mastodon-streaming.service
    dest: /etc/systemd/system/mastodon-streaming.service
    owner: root
    group: root

- name: Media cleanup cronjob
  cron:
    name: "media cleanup"
    minute: "15"
    hour: "1"
    job: '/bin/bash -c ''export PATH="$HOME/.rbenv/bin:$PATH"; eval "$(rbenv init -)"; cd /home/mastodon/mastodon && RAILS_ENV=production ./bin/tootctl media remove'''
  become: true
  become_user: mastodon

- name: Add mastodon postgres user
  postgresql_user:
    login_host=localhost
    login_user={{ db_admin_username }}
    login_password="{{ db_admin_password }}"
    name={{ mastodon_db_username }}
    password="{{ mastodon_db_password }}"
    role_attr_flags=CREATEDB
    encrypted=yes
    state=present

- name: Create mastodon database
  postgresql_db:
    login_host=localhost
    login_user={{ db_admin_username }}
    login_password="{{ db_admin_password }}"
    name={{ mastodon_db_database }}
    state=present
    owner={{ mastodon_db_username }}

- name: Create mastodon data directory
  file: state=directory path=/data/{{ item }} owner=mastodon group=www-data
  with_items:
    - mastodon
    - mastodon/public-system

- name: Generate VAPID keys
  shell: "RAILS_ENV=production ~/.rbenv/shims/bundle exec rake mastodon:webpush:generate_vapid_key > /home/mastodon/vapid_keys_generated"
  args:
    chdir: /home/mastodon/mastodon
    creates: /home/mastodon/vapid_keys_generated
  become: true
  become_user: mastodon

- name: Remove previous mastodon config
  file: state=absent path=/home/mastodon/mastodon/.env.production

- name: Install mastodon config
  template:
    src: home_mastodon_mastodon_env.j2
    dest: /home/mastodon/mastodon/.env.production
    owner: mastodon
    group: mastodon
  notify: restart mastodon

- name: Append VAPID keys to new config
  shell: "cat /home/mastodon/vapid_keys_generated >> /home/mastodon/mastodon/.env.production"
  become: true
  become_user: mastodon

- name: Set mastodon ownership
  action: file owner=mastodon group=www-data path=/home/mastodon/mastodon recurse=yes state=directory

# This is a no-op in case nothing has to be upgraded
- name: Migrate database
  shell: "RAILS_ENV=production ~/.rbenv/shims/bundle exec rails db:migrate"
  args:
    chdir: "/home/mastodon/mastodon"
  become: true
  become_user: mastodon

# MAY be needed on upgrades, but takes a long time, so commented out for now. See:
# https://github.com/tootsuite/documentation/blob/master/Running-Mastodon/Updating-Mastodon-Guide.md#pre-compiling-updated-assets
#- name: Precompile assets
#  shell: "RAILS_ENV=production ~/.rbenv/shims/bundle exec rails assets:precompile"
#  args:
#    chdir: "/home/mastodon/mastodon"
#  become: true
#  become_user: mastodon

- name: Register new Mastodon services
  systemd: name={{ item }} daemon_reload=yes enabled=yes
  with_items:
    - mastodon-web
    - mastodon-streaming
    - mastodon-sidekiq

- name: Start new Mastodon services
  service: name={{ item }} state=restarted
  with_items:
    - mastodon-web
    - mastodon-streaming
    - mastodon-sidekiq

- name: Add redirect to well-known
  template:
    src=var_www_well-known_host-meta.j2
    dest=/var/www/well-known/host-meta
    owner=www-data
    group=www-data

- name: Enable Apache websockets proxy module
  command: a2enmod proxy_wstunnel creates=/etc/apache2/mods-enabled/proxy_wstunnel.load
  notify: restart apache

- name: Enable Apache alias module
  command: a2enmod alias creates=/etc/apache2/mods-enabled/alias.load
  notify: restart apache

- name: Create the Apache Matrix sites config files
  template:
    src=etc_apache2_sites-available_mastodon.j2
    dest=/etc/apache2/sites-available/mastodon_{{ item.name }}.conf
    owner=root
    group=root
  with_items: "{{ virtual_domains }}"
  notify: restart apache

- name: Enable Apache sites (creates new sites-enabled symlinks)
  command: a2ensite mastodon_{{ item }}.conf creates=/etc/apache2/sites-enabled/mastodon_{{ item }}.conf
  notify: restart apache
  with_items: "{{ virtual_domains | json_query('[*].name') }}"