---
- name: Install prerequisites
  ansible.builtin.package:
    name:
      - curl
      - sqlite3
    state: present
  become: true

- name: Set architecture fact
  ansible.builtin.set_fact:
    _radarr_arch: "{{ {'x86_64': 'x64', 'aarch64': 'arm64', 'armv7l': 'arm'}.get(ansible_architecture, 'x64') }}"

- name: Get Radarr release info from GitHub
  ansible.builtin.uri:
    url: >-
      {{ 'https://api.github.com/repos/Radarr/Radarr/releases/latest'
         if radarr_version == ''
         else 'https://api.github.com/repos/Radarr/Radarr/releases/tags/v' + radarr_version }}
    headers:
      Accept: "application/vnd.github.v3+json"
    return_content: true
  register: _radarr_release

- name: Set version and download URL facts
  ansible.builtin.set_fact:
    _radarr_version_tag: "{{ _radarr_release.json.tag_name }}"
    _radarr_download_url: >-
      {{ _radarr_release.json.assets
         | selectattr('name', 'search', 'linux-core-' + _radarr_arch)
         | map(attribute='browser_download_url')
         | first }}

- name: Read installed version
  ansible.builtin.slurp:
    src: "{{ radarr_install_dir }}/.version"
  register: _radarr_installed_raw
  ignore_errors: true
  become: true

- name: Set installed version fact
  ansible.builtin.set_fact:
    _radarr_installed_version: >-
      {{ (_radarr_installed_raw.content | b64decode | trim)
         if _radarr_installed_raw is not failed else '' }}

- name: Install or upgrade Radarr
  when: _radarr_installed_version != _radarr_version_tag
  block:
    - name: Download Radarr archive
      ansible.builtin.get_url:
        url: "{{ _radarr_download_url }}"
        dest: /tmp/radarr.tar.gz
        mode: '0644'

    - name: Create Radarr installation directory
      ansible.builtin.file:
        path: "{{ radarr_install_dir }}"
        state: directory
        owner: "{{ radarr_user }}"
        group: "{{ radarr_group }}"
        mode: '0755'
      become: true

    - name: Extract Radarr archive
      ansible.builtin.unarchive:
        src: /tmp/radarr.tar.gz
        dest: "{{ radarr_install_dir }}"
        remote_src: true
        extra_opts: [--strip-components=1]
        owner: "{{ radarr_user }}"
        group: "{{ radarr_group }}"
      become: true

    - name: Write installed version file
      ansible.builtin.copy:
        content: "{{ _radarr_version_tag }}"
        dest: "{{ radarr_install_dir }}/.version"
        owner: "{{ radarr_user }}"
        group: "{{ radarr_group }}"
        mode: '0644'
      become: true

    - name: Remove downloaded archive
      ansible.builtin.file:
        path: /tmp/radarr.tar.gz
        state: absent

- name: Create Radarr data directory
  ansible.builtin.file:
    path: "{{ radarr_data_dir }}"
    state: directory
    owner: "{{ radarr_user }}"
    group: "{{ radarr_group }}"
    mode: '0750'
  become: true

- name: Create Radarr systemd service
  ansible.builtin.copy:
    content: |
      [Unit]
      Description=Radarr
      After=syslog.target network.target

      [Service]
      SyslogIdentifier=radarr
      ExecStart={{ radarr_install_dir }}/Radarr -nobrowser -data={{ radarr_data_dir }}
      TimeoutStopSec=20
      KillMode=process
      Restart=on-failure
      User={{ radarr_user }}
      Group={{ radarr_group }}
      UMask=0002

      [Install]
      WantedBy=multi-user.target
    dest: /etc/systemd/system/radarr.service
    mode: '0644'
  become: true

- name: Enable and start Radarr service
  ansible.builtin.systemd:
    name: radarr
    enabled: "{{ radarr_service_enabled }}"
    state: "{{ radarr_service_state }}"
    daemon_reload: true
  become: true