---
- hosts: all

  # Install python if required
  # https://www.josharcher.uk/code/ansible-python-connection-failure-ubuntu-server-1604/
  gather_facts: False
  pre_tasks:
    - name: check lemmy_base_dir
      fail:
        msg: "`lemmy_base_dir` is unset. if you are upgrading from an older version, add `lemmy_base_dir=/lemmy` to your inventory file."
      when: lemmy_base_dir is not defined

    - name: install python for Ansible
      # python2-minimal instead of python-minimal for ubuntu 20.04 and up
      raw: test -e /usr/bin/python || (apt -y update && apt install -y python3-minimal python3-setuptools)
      args:
        executable: /bin/bash
      register: output
      changed_when: output.stdout != ''

    - setup: # gather facts

  tasks:
  - name: install dependencies
    apt:
      update_cache: yes
      pkg:
        - 'nginx'
        - 'docker-compose'
        - 'docker.io'
        - 'certbot'
        - 'python3-certbot-nginx'

  - name: request initial letsencrypt certificate
    command: certbot certonly --nginx --agree-tos --cert-name '{{ domain }}' -d '{{ domain }}' -m '{{ letsencrypt_contact_email }}'
    args:
      creates: '/etc/letsencrypt/live/{{domain}}/privkey.pem'

  - name: create lemmy folder
    file:
      path: '{{item.path}}'
      owner: '{{item.owner}}'
      state: directory
    with_items:
      - path: '{{lemmy_base_dir}}/{{domain}}/'
        owner: 'root'
      - path: '{{lemmy_base_dir}}/{{domain}}/volumes/'
        owner: 'root'
      - path: '{{lemmy_base_dir}}/{{domain}}/volumes/pictrs/'
        owner: '991'

  - block:
    - set_fact:
        lemmy_port: "{{ 32767 |random(start=1024) }}"
        lemmy_ui_port: "{{ 32767 |random(start=1024) }}"
        pictrs_port: "{{ 32767 |random(start=1024) }}"

    - name: add template files
      template:
        src: '{{item.src}}'
        dest: '{{item.dest}}'
        mode: '{{item.mode}}'
      with_items:
        - src: 'templates/docker-compose.yml'
          dest: '{{lemmy_base_dir}}/{{domain}}/docker-compose.yml'
          mode: '0600'
        - src: 'templates/nginx.conf'
          dest: '/etc/nginx/sites-available/{{domain}}.conf'
          mode: '0644'
      vars:
        lemmy_docker_image: "dessalines/lemmy:{{ lemmy_version | default( lookup('file', 'VERSION') )}}"
        lemmy_docker_ui_image: "dessalines/lemmy-ui:{{ lemmy_ui_version | default(lemmy_version | default(lookup('file', 'VERSION')))}}"

    - block:
      - name: gather stats on site enabled config
        stat:
          path: "/etc/nginx/sites-enabled/{{domain}}.conf"
        register: reg_enabled

      - name: remove if regular file (legacy) instead of symlink
        file:
          path: "/etc/nginx/sites-enabled/{{domain}}.conf"
          state: absent
        when: reg_enabled.stat.exists and reg_enabled.stat.isreg

      - name: enable nginx site
        file:
          src: '../sites-available/{{domain}}.conf'
          dest: "/etc/nginx/sites-enabled/{{domain}}.conf"
          state: link
          
    - name: add the config.hjson
      template:
        src: 'inventory/host_vars/{{domain}}/config.hjson'
        dest: '{{lemmy_base_dir}}/{{domain}}/lemmy.hjson'
        mode: '0600'
        owner: '1000'
        group: '1000'
    vars:
      postgres_password: "{{ lookup('password', 'inventory/host_vars/{{domain}}/passwords/postgres chars=ascii_letters,digits') }}"

  - name: enable and start docker service
    systemd:
      name: docker
      enabled: yes
      state: started

  # - name: Change the working directory to /opt
  #   ansible.builtin.shell:
  #     cmd: find .                    # To list files under /opt directory
  #     chdir: /opt                    # changes to /opt directory
  #     register: shell_output
  # - debug: var=shell_output     

  - name: start docker-compose
    docker_compose:
      project_src: '{{lemmy_base_dir}}/{{domain}}'
      state: present
      pull: yes
      remove_orphans: yes

  - name: reload nginx with new config
    shell: nginx -s reload

  - name: certbot renewal cronjob
    cron:
      special_time: daily
      name: certbot-renew-lemmy
      user: root
      job: "certbot certonly --nginx --cert-name '{{ domain }}' -d '{{ domain }}' --deploy-hook 'nginx -s reload'"