---
- name: Ensure custom facts directory exists
  file:
    mode: 0755
    path: /etc/ansible/facts.d
    state: directory

- name: "Ensure {{ duf_src_dir }} directory exists"
  file:
    path: "{{ duf_src_dir }}"
    state: directory
    mode: 0755

- name: "Detect the latest {{ app_name }} version"
  uri:
    url: https://api.github.com/repos/muesli/duf/releases/latest
  register: duf_latest_release_tag

- name: "Determine whether or not the latest version of {{ app_name }} is already installed"
  set_fact:
    install_duf: "{{ (ansible_local.duf is not defined) or \
      ((ansible_local.duf is defined) and \
      (ansible_local['duf']['settings']['version'] != duf_latest_release_tag.json.tag_name | replace('v',''))) }}"

- name: "Fetch CHECKSUMS file of {{ app_name }} installer"
  uri:
    url: "https://github.com/muesli/duf/releases/download/{{ duf_latest_release_tag.json.tag_name }}/checksums.txt"
    return_content: true
  register: duf_checksum_file
  when: install_duf

- name: "Find the Checksum of {{ app_name }} installer"
  set_fact:
    duf_checksum: "{{ duf_checksum_file.content | regex_search('.*duf_(\\d*.)*\\d*_linux_x86_64.tar.gz') | \
      regex_replace('  duf_(\\d*.)*\\d*_linux_x86_64.tar.gz','') }}"
  when: install_duf

- name: "Acquire {{ app_name }}'s latest installer"
  get_url:
    url: "https://github.com/muesli/duf/releases/download/{{ duf_latest_release_tag.json.tag_name }}/\
      duf_{{ duf_latest_release_tag.json.tag_name | replace('v','') }}_linux_x86_64.tar.gz"
    dest: "{{ duf_src_dir }}/duf_{{ duf_latest_release_tag.json.tag_name | replace('v','') }}_linux_x86_64.tar.gz"
    checksum: "sha256:{{ duf_checksum }}"
  when: install_duf

- name: "Ensure {{ app_name }} is installed"
  unarchive:
    src: "{{ duf_src_dir }}/duf_{{ duf_latest_release_tag.json.tag_name | replace('v','') }}_linux_x86_64.tar.gz"
    dest: /usr/local/bin
    remote_src: true
    exclude:
      - README.md
      - LICENSE
    extra_opts:
      - --strip-components=1
  when: install_duf

- name: "Save meta information about the version of {{ app_name }} that was installed"
  community.general.ini_file:
    path: /etc/ansible/facts.d/duf.fact
    mode: 0644
    section: settings
    option: version
    value: "{{ duf_latest_release_tag.json.tag_name | replace('v','') }}"
    backup: true
    no_extra_spaces: true
  when: install_duf