---
# ============================================================
# Install required packages
# ============================================================
- name: Install required packages
  ansible.builtin.apt:
    name: ethtool
    state: present
    update_cache: true

# ============================================================
# Detect physical NICs with WOL support using Ansible facts
# ============================================================
- name: Gather network interface facts
  ansible.builtin.setup:
    gather_subset:
      - network
  when: ansible_facts.interfaces is not defined

- name: Display interfaces
  ansible.builtin.debug:
    msg: >
      {{ ansible_facts.interfaces }}

# - name: Get interfaces starting with "en" or "eth"
#   ansible.builtin.set_fact:
#     en_interfaces: "{{ ansible_facts.interfaces | select('match', '^eth|^ens|^enp') | unique | list }}"

- name: Get interfaces starting with "en" or "eth"
  ansible.builtin.set_fact:
    en_interfaces: >-
      {{
        ansible_facts.interfaces
        | select('match', '^(eth|en)')
        | list
      }}

# ============================================================
# Detect physical interfaces backing configured bridges
# ============================================================
- name: Get physical interfaces for configured bridges
  ansible.builtin.command: bridge link show {{ item }}
  register: bridge_links
  loop: "{{ wol_bridges | list }}"
  changed_when: false
  failed_when: false

- name: Extract physical interfaces from bridge info
  ansible.builtin.set_fact:
    bridge_physical: >-
      {{
        bridge_links.results
        | selectattr('rc', 'equalto', 0)
        | map(attribute='stdout_lines')
        | flatten
        | map('regex_replace', '^\\d+: ([^ ]+).*', '\\1')
        | select
        | unique
        | list
      }}

# ============================================================
# Check for bond0 and get slaves
# ============================================================
- name: Check if bond0 exists
  ansible.builtin.stat:
    path: /proc/net/bonding/bond0
  register: bond0_stat

- name: Get bond0 slaves
  ansible.builtin.command: cat /proc/net/bonding/bond0 | grep "Slave Interface" | awk '{print $3}'
  register: bond0_slaves
  changed_when: false
  when: bond0_stat.stat.exists

# ============================================================
# Set final list of interfaces to configure
# ============================================================
- name: Set final interfaces
  ansible.builtin.set_fact:
    wol_final_interfaces: >-
      {{
        (bridge_physical if bridge_physical else en_interfaces)
        + (bond0_slaves.stdout_lines if bond0_stat.stat.exists else [])
        | unique
        | list
      }}

- name: Display selected interfaces
  ansible.builtin.debug:
    msg: "Interfaces to configure for WOL: {{ wol_final_interfaces }}"

- name: Check supported Wake-on-LAN modes
  ansible.builtin.shell: "ethtool {{ item }} | grep 'Supports Wake-on' | tail -1 | awk '{print $3}'"
  loop: "{{ wol_final_interfaces }}"
  register: wol_supported
  changed_when: false
  when: wol_final_interfaces | length > 0

- name: Check if WOL is enabled
  ansible.builtin.shell: "ethtool {{ item }} | grep 'Wake-on' | tail -1 | awk '{print substr($0,length,1)}'"
  register: wol_enabled
  changed_when: false
  failed_when: false
  loop: "{{ wol_final_interfaces }}"
  when: wol_final_interfaces | length > 0

# ============================================================
# Enable or disable WOL as needed
# ============================================================
- name: Set Wake-on-LAN mode
  ansible.builtin.command: "ethtool -s {{ item.0 }} wol {{ wol_mode }}"
  loop: "{{ wol_final_interfaces | zip(wol_enabled.results, wol_supported.results) | list }}"
  loop_control:
    label: "{{ item.0 }}"
  when:
    - item.1.stdout is defined
    - item.2.stdout is defined
    - wol_mode not in item.1.stdout
    - wol_mode in item.2.stdout

# ============================================================
# Create udev rules for persistence
# ============================================================
- name: Create udev rule for WOL persistence
  ansible.builtin.template:
    src: 90-wol.rules.j2
    dest: /etc/udev/rules.d/90-wol.rules
    owner: root
    group: root
    mode: '0644'
  notify:
    - Reload_udev_rules
    - Trigger_udev_net



# ============================================================
# Verification & Reporting
# ============================================================
- name: Verify Wake-on-LAN status
  ansible.builtin.command: "ethtool {{ item }}"
  register: wol_status
  changed_when: false
  loop: "{{ wol_final_interfaces }}"
  loop_control:
    label: "{{ item }}"
  when: wol_verify and wol_final_interfaces | length > 0

- name: Display WOL status per interface
  ansible.builtin.debug:
    msg: >
      Interface {{ item.item }} WOL Status:
      {{ item.stdout_lines | select('search', 'Wake-on:') | first | default('Status Unknown') }}
  loop: "{{ wol_status.results | default([]) }}"
  loop_control:
    label: "{{ item.item }}"
  when: wol_verify

- name: Get MAC addresses for all interfaces
  ansible.builtin.set_fact:
    wol_mac_addresses: >-
      {{
        wol_final_interfaces
        | map('extract', ansible_facts, attribute='macaddress')
        | list
      }}

- name: Report WOL configuration
  ansible.builtin.debug:
    msg: |
      Wake-on-LAN Configuration Summary:
      ===================================
      Bridges Configured: {{ wol_bridges | join(', ') }}
      Physical Interfaces: {{ wol_final_interfaces | join(', ') }}
      WOL Mode: {{ wol_mode }}
      {% if bond0_stat.stat.exists %}
      Bond0 Detected: Yes
      Bond0 Slaves: {{ bond0_slaves.stdout_lines | join(', ') }}
      {% endif %}
      {% if wol_report_mac and wol_mac_addresses | length > 0 %}
      MAC Addresses:
      {% for iface, mac in (wol_final_interfaces | zip(wol_mac_addresses) | list) %}
        - {{ iface }}: {{ mac | default('Unable to detect') }}
      {% endfor %}
      {% endif %}