---
- name: Normalize hypervisor configuration
  when: hypervisor_cfg is not defined
  block:
    - name: Ensure hypervisor input is a dictionary
      ansible.builtin.set_fact:
        hypervisor: "{{ hypervisor | default({}) }}"

    - name: Validate hypervisor input
      ansible.builtin.assert:
        that:
          - hypervisor is mapping
          - hypervisor.type is defined
          - hypervisor.type | string | length > 0
        fail_msg: "hypervisor must be a dictionary and hypervisor.type must be set (e.g. libvirt|proxmox|vmware|xen|none)."
        quiet: true

    - name: Merge hypervisor defaults with input
      vars:
        merged: "{{ hypervisor_defaults | combine(hypervisor, recursive=True) }}"
      ansible.builtin.set_fact:
        hypervisor_cfg: "{{ merged }}"
        hypervisor_type: "{{ merged.type | string | lower }}"
      no_log: true