---
- name: Get MAC address of first physical network interface
  hosts: all
  gather_facts: yes
  vars:
    physical_prefixes:
      - "en"
      - "eth"
      - "em"
      - "ens"
      - "eno"
      - "enp"

  tasks:
    - name: Show all discovered interfaces (for debugging)
      ansible.builtin.debug:
        msg: "All interfaces found: {{ ansible_facts.interfaces }}"

    - name: Filter physical interfaces using looser regex
      ansible.builtin.set_fact:
        physical_interfaces: >-
          {{
            ansible_facts.interfaces
            | select('match', '^(en|eth|em|ens|eno|enp)(.*)')
            | map('extract', ansible_facts)
            | selectattr('macaddress', 'defined')
            | list
          }}

    - name: Show filtered physical interfaces
      ansible.builtin.debug:
        msg: "Filtered physical interfaces: {{ physical_interfaces | map(attribute='device') | list }}"

    - name: Check if physical interfaces were found
      ansible.builtin.assert:
        that:
          - "physical_interfaces | length > 0"
        fail_msg: "No physical network interfaces found matching {{ physical_prefixes }}*"
        success_msg: "Found physical interfaces"

    - name: Set first physical interface
      ansible.builtin.set_fact:
        first_physical_interface: "{{ physical_interfaces[0].device }}"

    - name: Show MAC address of first physical interface
      ansible.builtin.debug:
        msg: "MAC Address of {{ first_physical_interface }} is {{ physical_interfaces[0].macaddress }}"