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

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

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

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

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

- name: "Fetch CHECKSUMS file of {{ app_name }} installer"
  uri:
    url: https://gradle.org/release-checksums/
    return_content: true
  register: gradle_checksum_page
  when: install_gradle

- name: "Find the Checksum of {{ app_name }} installer"
  set_fact:
    gradle_checksum: "{{ gradle_checksum_page.content | regex_search('Binary-only \\(-bin\\) ZIP Checksum: <code>(\\w*)<\\/code>') | \
      regex_replace('Binary-only \\(-bin\\) ZIP Checksum: <code>(\\w*)<\\/code>','\\1') }}"
  when: install_gradle

- name: "Acquire {{ app_name }}'s latest installer"
  get_url:
    url: "https://services.gradle.org/distributions/gradle-{{ gradle_latest_release_tag.json.tag_name | replace('v','') }}-bin.zip"
    dest: "{{ gradle_src_dir }}/gradle.zip"
    checksum: "sha256:{{ gradle_checksum }}"
  when: install_gradle

- name: "Ensure {{ app_name }} is installed"
  unarchive:
    src: "{{ gradle_src_dir }}/gradle.zip"
    dest: "{{ gradle_install_dir }}"
    remote_src: true
  when: install_gradle

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

- name: Ensure /usr/local/etc/bash_completion.d directory exists
  file:
    path: /usr/local/etc/bash_completion.d
    state: directory
    mode: 0755

- name: Ensure BASH completion is setup
  get_url:
    url: "https://raw.githubusercontent.com/eriwen/gradle-completion/master/gradle-completion.bash"
    dest: /usr/local/etc/bash_completion.d/gradle-completion.bash
    mode: 0644

- name: "Ensure PATH is set and completion is sourced"
  lineinfile:
    path: /etc/profile.d/gradle.sh
    create: true
    regexp: "{{ item.regex }}"
    line: "{{ item.line }}"
    mode: 0644
  loop:
    - regex: '^export PATH=$PATH:/opt/gradle/'
      line: "export PATH=$PATH:/opt/gradle/gradle-{{ gradle_latest_release_tag.json.tag_name | replace('v','') }}/bin"
    - regex: '. /usr/local/etc/bash_completion.d/gradle-completion.bash'
      line: '. /usr/local/etc/bash_completion.d/gradle-completion.bash'