---
- name: Ensure ~/.local/nvm directory exists
  file:
    mode: 0700
    path: ~/.local/nvm
    state: directory

- name: "Ensure {{ app_name }} is installed"
  block:
    - name: Ensure Megabyte Labs configuration directory exists
      file:
        mode: 0700
        path: "{{ item }}"
        state: directory
      loop:
        - ~/.config
        - ~/.config/megabytelabs

    - name: "Check if {{ app_name }} has configuration stored in ~/.config/megabytelabs/nvm"
      stat:
        path: "~/.config/megabytelabs/nvm"
      register: nvm_config

    - name: "Detect previously installed {{ app_name }} version"
      command: cat nvm
      args:
        chdir: ~/.config/megabytelabs
      changed_when: false
      register: current_nvm_version
      when: nvm_config.stat.exists

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

    - name: "Determine whether or not the latest version of {{ app_name }} is already installed"
      set_fact:
        install_nvm: "{{ (current_nvm_version.skipped | default(false)) or \
          ((not current_nvm_version.skipped | default(false)) and (current_nvm_version.stdout != nvm_latest_release_tag.json.tag_name | replace('v',''))) }}"

    - name: "Ensure older version of {{ app_name }} is uninstalled"
      file:
        path: "~/.nvm/nvm.sh"
        state: absent
      when: install_nvm

    - name: "Ensure {{ app_name }} is installed"
      shell: >
        set -o pipefail && \
        curl -o- {{ 'https://raw.githubusercontent.com/nvm-sh/nvm/' + nvm_latest_release_tag.json.tag_name + '/install.sh' }} | NVM_DIR="$HOME/.local/nvm" bash
      args:
        creates: "~/.nvm/nvm.sh"
        executable: /bin/bash
      when: install_nvm

    - name: "Save meta information about the version of {{ app_name }} that was installed"
      copy:
        dest: ~/.config/megabytelabs/nvm
        mode: 0600
        content: |
          {{ nvm_latest_release_tag.json.tag_name  | replace('v','') }}
      when: install_nvm
  when: ansible_system == 'Linux'

# @action Configures NVM
# Creates a configurable `default-packages`
- name: Configure the default global packages
  template:
    src: default-packages.j2
    dest: ~/.local/nvm/default-packages
    mode: 0400
  when: nodejs_npm_global_packages | default([]) | length

- name: Ensure NodeJS is installed
  shell: |
    . "$NVM_DIR/nvm.sh"
    nvm install {{ nodejs_version | replace('.x', '') | default('node') }}
  environment:
    NVM_DIR: "{{ ('/home/' if ansible_system == 'Linux' else '/Users/') + user.username + '/.local/nvm' }}"
  args:
    executable: /bin/bash
  register: nvm_node_install
  changed_when: not (nvm_node_install.rc == 0 and 'is already installed' in nvm_node_install.stderr)

- name: Install avn NPM global dependencies
  become_user: root
  environment:
    PATH: "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/snap/bin"
  community.general.npm:
    name: "{{ item }}"
    version: latest
    global: true
    state: present
  loop:
    - avn
    - avn-nvm
  when: add_avn_integration

# @action Installs and Sets Up AVN on macOS/Linux
# Installs AVN which adds the capability of automatically switching to a project's correct Node.js version
- name: Setup avn
  environment:
    PATH: "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/snap/bin"
  command: avn setup
  args:
    creates: ~/.avn
  register: avn_setup
  failed_when: (avn_setup.rc == 1 and ('profile setup complete' not in avn_setup.stdout))
  when: add_avn_integration