- name: validate input
  fail:
    msg: package must be a list or a string
  when: (package is not defined) or (package is mapping) or
        (package is not iterable) and (package is not string)


- block:
  - name: determine distribution
    setup:
      gather_subset:
        - min

  - name: fail if distribution is not yet defined
    fail:
      msg: distribution is not yet defined, using fallback
    when: ansible_distribution is not defined

  rescue:
    - name: set fallback distribution
      set_fact:
        ansible_distribution: 'Alpine'
        ansible_system: "{{ 'Win32NT' if (is_windows | d(false) == true) else 'Linux' }}"

  when: ansible_distribution is not defined


- name: loop over packages
  include_tasks: tasks/includes/package.yml
  loop: "{%- if package is string -%}{{ [ package ] }}\
         {%- else -%}{{ package }}\
         {%- endif -%}"
  loop_control:
    loop_var: package_inner


- name: undefine temporary facts
  set_fact:
    this_package: "{{ None }}"
  when: this_package | d(None) != None