---
- name: Wait for connection
  ansible.builtin.wait_for_connection:
    timeout: 180
    delay: 5

- name: Gather facts
  ansible.builtin.setup:

- name: Check for live environment markers
  ansible.builtin.stat:
    path: "{{ item }}"
  loop:
    - /run/archiso
    - /run/live
    - /run/initramfs
    - /run/initramfs/live
  register: environment_live_marker_stat
  changed_when: false

- name: Determine root filesystem type
  ansible.builtin.set_fact:
    environment_root_fstype: >-
      {{
        ansible_mounts
        | selectattr('mount', 'equalto', '/')
        | map(attribute='fstype')
        | list
        | first
        | default('')
        | lower
      }}
    environment_archiso_present: >-
      {{
        (
          environment_live_marker_stat.results
          | selectattr('item', 'equalto', '/run/archiso')
          | selectattr('stat.exists')
          | list
          | length
        ) > 0
      }}

- name: Identify live environment indicators
  ansible.builtin.set_fact:
    environment_is_live_environment: >-
      {{
        (
          environment_live_marker_stat.results
          | selectattr('stat.exists')
          | list
          | length
        ) > 0
        or environment_root_fstype in ['overlay', 'overlayfs', 'squashfs', 'aufs']
        or (ansible_hostname | default('') | lower is search('live'))
      }}

- name: Abort if target is not a live environment
  ansible.builtin.assert:
    that:
      - environment_is_live_environment | bool
    fail_msg: |
      PRODUCTION SYSTEM DETECTED - ABORTING

      The target system does not appear to be a live installer environment.
      This playbook must run from a live ISO to avoid wiping production data.

      Boot from a live installer (Arch, Debian, Ubuntu, etc.) and retry.
    quiet: true

- name: Abort if the host is not booted from the Arch install media
  when:
    - not (custom_iso | bool)
    - not environment_archiso_present | bool
  ansible.builtin.fail:
    msg: This host is not booted from the Arch install media!