---
- name: The Great Forest Recon (Discovery)
  hosts: localhost
  connection: local
  gather_facts: no
  vars:
    subnets:
      - "192.168.0.0/24" # Home
      - "10.0.1.0/24"    # BMS Management
      - "192.168.2.0/24" # Office
    scan_output_dir: "~/.gemini/tmp/journal/recon"
  tasks:
    - name: Ensure scan output directory exists
      ansible.builtin.file:
        path: "{{ scan_output_dir }}"
        state: directory

    - name: Perform ping sweep across subnets
      ansible.builtin.shell: "nmap -sn {{ item }} -oG {{ scan_output_dir }}/scan_{{ item | replace('/', '_') }}.gnmap"
      loop: "{{ subnets }}"
      register: nmap_scans

    - name: Parse nmap results into a unified list
      ansible.builtin.shell: |
        grep "Up" {{ scan_output_dir }}/*.gnmap | awk '{print $2}' | sort -u
      register: discovered_ips

    - name: Report discovered hosts
      ansible.builtin.debug:
        msg: "Discovered {{ discovered_ips.stdout_lines | length }} live hosts in the forest."

    - name: Save discovered list for next phase
      ansible.builtin.copy:
        content: "{{ discovered_ips.stdout }}"
        dest: "{{ scan_output_dir }}/live_hosts.txt"