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

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

- name: "Detect the latest {{ app_name }} version"
  uri:
    url: https://api.github.com/repos/dandavison/delta/releases/latest
  register: delta_latest_release_tag

- name: "Determine whether or not the latest version of {{ app_name }} is already installed"
  set_fact:
    install_delta: "{{ (ansible_local.delta is not defined) or \
      ((ansible_local.delta is defined) and (ansible_local['delta']['settings']['version'] != delta_latest_release_tag.json.tag_name)) }}"

- name: "Ensure {{ app_name }} is downloaded"
  unarchive:
    src: "https://github.com/dandavison/delta/releases/download/{{ delta_latest_release_tag.json.tag_name }}/\
      delta-{{ delta_latest_release_tag.json.tag_name }}-x86_64-unknown-linux-musl.tar.gz"
    dest: "{{ delta_src_directory }}"
    extra_opts:
      - --strip-components=1
    exclude:
      - LICENSE
      - README.md
    remote_src: true
  when: install_delta

- name: "Save meta information about the version of {{ app_name }} that was installed"
  community.general.ini_file:
    path: /etc/ansible/facts.d/delta.fact
    mode: 0644
    section: settings
    option: version
    value: "{{ delta_latest_release_tag.json.tag_name }}"
    backup: true
    no_extra_spaces: true
  when: install_delta

- name: "Ensure {{ app_name }} config is added to ~/.gitconfig"
  become_user: "{{ user.username }}"
  blockinfile:
    path: ~/.gitconfig
    marker: "# {mark} Ansible managed block for delta"
    backup: true
    create: true
    mode: 0700
    block: "{{ lookup('file', 'gitconfig') }}"
  loop: "{{ user_configs }}"
  loop_control:
    label: "{{ user.username }}"
    loop_var: user
  when: (user.system is not defined) or ((user.system is defined) and (not user.system))