---

- name: get rid of useless grub warning
  file:
    path: /etc/grub.d/30_os-prober
    state: absent

# todo - use /etc/os-release instead?
- name: preliminary requirement
  apt:
    name:
      - lsb-release      # define distro on debian family systems
    update_cache: false  # we didn't update sources.list yet
    autoremove: true
    purge: true

#
# distro flavor & release
#

# debian vs ubuntu - required by sources.list
- name: define distro flavor on debian systems
  shell:
    executable: /bin/bash
    cmd: "lsb_release -is 2>/dev/null | tr A-Z a-z || echo unknown"
  register: flavor
  changed_when: false
  check_mode: false

- debug: var=flavor.stdout

# non debian nor ubuntu (e.g. mint) release names (e.g. vera based on jammy) are problematic
# we prefer to get an error in that case
- assert:
    that: flavor.stdout == 'debian' or flavor.stdout == 'ubuntu'

# e.g. bookworm vs focal - required by sources.list
- name: define distro release on debian systems
  shell:
    executable: /bin/bash
    cmd: "lsb_release -cs 2>/dev/null || echo unknown"
  register: release
  changed_when: false
  check_mode: false

- debug: var=release.stdout

- name: disable modern ubuntu repo style
  file:
    path: /etc/apt/sources.list.d/ubuntu.sources
    state: absent
  when: flavor.stdout == 'ubuntu'

- name: quell source format warnings
  copy:
    content: |
      # CONFIGURED BY ANSIBLE
      APT::Get::Update::SourceListWarnings "false";
    dest: /etc/apt/apt.conf.d/10quellsourceformatwarnings
  when: release.stdout == 'resolute'

- name: package mgmt setup on debian systems
  template:
    src: sources.list
    dest: /etc/apt/sources.list

#- debug: var=group_names

# variable deference against acng_HOST_GROUP
- set_fact:
    #acng: "{{ vars['acng_' + group_names[0]] }}"
    acng: "{{ vars['acng_' + item] }}"
  loop: "{{ group_names }}"
  when: ('acng_' + item) in vars and acng is not defined

#- debug: var=acng

- name: setup debian repository proxy
  copy:
    content: |
      # CONFIGURED BY ANSIBLE
      Acquire::http { Proxy "http://{{acng}}:3142"; };
    dest: /etc/apt/apt.conf.d/01proxy
  when: skip_acng is undefined