---

- name: install base apps
  apt:
    force_apt_get: yes
    name:
      - docker-compose-v2
      - git

- name: base path
  file:
    path: "/srv/mastodon"
    state: directory
    recurse: true

- name: source
  git:
    repo: "https://tea.entar.net/teh/mastodon.git"
    dest: /srv/mastodon/src
    version: deploy

- name: docker-compose file
  template:
    src: templates/docker-compose.mastodon.yaml
    dest: /srv/mastodon/docker-compose.yaml
  register: compose

## generate secrets if they're needed
- name: check secret_key_base
  delegate_to: localhost
  become: false
  stat:
    path: credentials/mastodon/secret_key_base
  register: secret_key_base_file

- name: check otp_secret
  delegate_to: localhost
  become: false
  stat:
    path: credentials/mastodon/otp_secret
  register: otp_secret_file

- name: check vapid_secrets
  delegate_to: localhost
  become: false
  stat:
    path: credentials/mastodon/vapid_secrets
  register: vapid_secrets_file

- name: env file stub
  template:
    src: templates/env.production
    dest: /srv/mastodon/.env.production
  vars:
    db_password: "{{ lookup('ansible.builtin.password', 'credentials/mastodon/postgres', length=15) }}"
    alternate_domains: "mastodon_web"
  when: secret_key_base_file.stat.exists != true or otp_secret_file.stat.exists != true or vapid_secrets_file.stat.exists != true

- name: get SECRET_KEY_BASE
  shell: docker compose run --rm mastodon_web rake secret 2>/dev/null | tail -1
  args:
    chdir: /srv/mastodon
  register: skb
  when: secret_key_base_file.stat.exists != true

- name: store SECRET_KEY_BASE
  delegate_to: localhost
  become: false
  copy:
    dest: credentials/mastodon/secret_key_base
    content: "{{skb.stdout}}"
  when: secret_key_base_file.stat.exists != true

- name: get OTP_SECRET
  shell: docker compose run --rm mastodon_web rake secret 2>/dev/null | tail -1
  args:
    chdir: /srv/mastodon
  register: otp
  when: otp_secret_file.stat.exists != true

- name: store OTP_SECRET
  delegate_to: localhost
  become: false
  copy:
    dest: credentials/mastodon/otp_secret
    content: "{{otp.stdout}}"
  when: secret_key_base_file.stat.exists != true

- name: get vapid secrets
  command: docker compose run --rm mastodon_web rake mastodon:webpush:generate_vapid_key
  args:
    chdir: /srv/mastodon
  register: vapid
  when: vapid_secrets_file.stat.exists != true

- name: store vapid secrets
  delegate_to: localhost
  become: false
  copy:
    dest: credentials/mastodon/vapid_secrets
    content: "{{vapid.stdout}}"
  when: vapid_secrets_file.stat.exists != true

- name: env file
  template:
    src: templates/env.production
    dest: /srv/mastodon/.env.production
  vars:
    db_password: "{{ lookup('ansible.builtin.password', 'credentials/mastodon/postgres', length=15) }}"
    secret_key_base: "{{ lookup('ansible.builtin.file', 'credentials/mastodon/secret_key_base') }}"
    otp_secret:      "{{ lookup('ansible.builtin.file', 'credentials/mastodon/otp_secret') }}"
    vapid_secrets:   "{{ lookup('ansible.builtin.file', 'credentials/mastodon/vapid_secrets') }}"
    alternate_domains: "mastodon_web"
  register: envfile

## finally, let's launch mastodon

# XXX FIXME: this should handle DB upgrades when appropriate
# -- check the upgrade instructions for any major release really

- name: launch mastodon
  command: docker compose up -d
  args:
    chdir: /srv/mastodon

# create an admin user!
# -- it's in lib/tasks/mastodon.rake under User.new
# or https://docs.joinmastodon.org/admin/tootctl/#accounts-create

- name: check for any tables at all
  command: docker exec -t mastodon_db psql -U postgres mastodon_production -P pager=off -c '\dt'
  register: hazschema

- name: initialize mastodon database
  command: docker compose run -t --rm mastodon_web bundle exec rails db:setup
  args:
    chdir: /srv/mastodon
  when: hazschema.stdout is match("Did not find any relations")

- name: restart mastodon
  command: docker compose restart
  args:
    chdir: /srv/mastodon
  when: envfile.changed or compose.changed


## add nginx config

- name: copy nginx config
  template:
    src: templates/nginx.conf
    dest: /srv/nginx/conf.d/mastodon.conf
  register: nginxconf

- name: reload nginx
  command: docker exec -t nginx nginx -s reload
  when: nginxconf.changed


## ---

- name: clean up docker
  command: docker system prune -f