---
- name: Gather all pages of system inventory from Red Hat Insights API
  hosts: localhost
  gather_facts: false
  vars:
    insights_api_url: "https://console.redhat.com/api/inventory/v1/hosts"  # Red Hat Insights Inventory API endpoint
    insights_api_token: "your_access_token"  # Replace with your Red Hat API access token (offline token from console.redhat.com)
    per_page: 50  # Number of items per page (adjust as needed)
    all_hosts: []  # Accumulator for all host data

  tasks:
    - name: Fetch the first page to get total count
      uri:
        url: "{{ insights_api_url }}?per_page={{ per_page }}&page=1"
        method: GET
        headers:
          Authorization: "Bearer {{ insights_api_token }}"
          Accept: "application/json"
        return_content: true
        validate_certs: true
      register: first_page_response

    - name: Accumulate first page results
      set_fact:
        all_hosts: "{{ all_hosts + first_page_response.json.results }}"

    - name: Calculate total pages
      set_fact:
        total_pages: "{{ ((first_page_response.json.total | float / per_page) | round(0, 'ceil')) | int }}"

    - name: Fetch remaining pages
      uri:
        url: "{{ insights_api_url }}?per_page={{ per_page }}&page={{ item }}"
        method: GET
        headers:
          Authorization: "Bearer {{ insights_api_token }}"
          Accept: "application/json"
        return_content: true
        validate_certs: true
      register: page_response
      loop: "{{ range(2, total_pages + 1) | list }}"
      when: total_pages > 1

    - name: Accumulate all remaining page results
      set_fact:
        all_hosts: "{{ all_hosts + item.json.results }}"
      loop: "{{ page_response.results }}"
      when: total_pages > 1

    - name: Display the full inventory
      debug:
        var: all_hosts

    - name: Save full inventory to file
      copy:
        content: "{{ {'hosts': all_hosts} | to_nice_json }}"  # Wrap in a dict for better structure
        dest: /root/rhel_insights_inventory_all.json

# Notes:
# - Obtain an offline API token from https://console.redhat.com/openshift/token
# - Ensure your systems are registered with Red Hat Insights.
# - For production, secure the token with ansible-vault.
# - This handles pagination by calculating total pages from the first response and fetching accordingly.
# - Assumes the API response includes 'total' and 'results' fields.