---
- name: Assert proxmox_cluster inventory group is populated
  ansible.builtin.assert:
    that:
      - groups['proxmox_cluster'] is defined
      - groups['proxmox_cluster'] | length >= 2
    fail_msg: "Inventory group proxmox_cluster must contain at least two nodes."

- name: Assert join node and anchor node are valid and distinct
  ansible.builtin.assert:
    that:
      - join_node in groups['proxmox_cluster']
      - join_target_host in groups['proxmox_cluster']
      - join_node != join_target_host
    fail_msg: "join_node and join_target_host must both be valid proxmox_cluster hosts and cannot be identical."

- name: Resolve join anchor IP
  ansible.builtin.set_fact:
    proxmox_cluster_reconcile_v2_anchor_ip: >-
      {{
        join_target_ip | trim
        if join_target_ip | trim | length > 0
        else (hostvars[join_target_host].ansible_host | default(join_target_host))
      }}
    proxmox_cluster_reconcile_v2_join_node_ip: "{{ hostvars[join_node].ansible_host | default(join_node) }}"

- name: Ensure join anchor SSH is reachable from controller
  ansible.builtin.wait_for:
    host: "{{ proxmox_cluster_reconcile_v2_anchor_ip }}"
    port: 22
    timeout: 10
    connect_timeout: 3
    state: started
  delegate_to: localhost

- name: Capture cluster status from anchor
  ansible.builtin.command: pvecm status
  register: proxmox_cluster_reconcile_v2_anchor_status
  changed_when: false
  become: true
  delegate_to: "{{ join_target_host }}"

- name: Assert anchor cluster is quorate before join
  ansible.builtin.assert:
    that:
      - proxmox_cluster_reconcile_v2_anchor_status.rc == 0
      - proxmox_cluster_reconcile_v2_anchor_status.stdout is search('Quorate:\\s+Yes')
    fail_msg: >-
      Anchor node {{ join_target_host }} is not quorate. Resolve quorum before joining {{ join_node }}.

- name: Capture current cluster nodes from anchor
  ansible.builtin.command: pvecm nodes
  register: proxmox_cluster_reconcile_v2_anchor_nodes
  changed_when: false
  become: true
  delegate_to: "{{ join_target_host }}"

- name: Extract current cluster node names from anchor
  ansible.builtin.shell: "pvecm nodes | awk 'NR>2 && NF>=3 {print $3}'"
  register: proxmox_cluster_reconcile_v2_anchor_node_names_cmd
  changed_when: false
  become: true
  delegate_to: "{{ join_target_host }}"

- name: Build normalized anchor node name list
  ansible.builtin.set_fact:
    proxmox_cluster_reconcile_v2_anchor_node_names: >-
      {{
        proxmox_cluster_reconcile_v2_anchor_node_names_cmd.stdout_lines
        | map('trim')
        | reject('equalto', '')
        | list
      }}

- name: Capture join node cluster membership file state
  ansible.builtin.stat:
    path: /etc/pve/corosync.conf
  register: proxmox_cluster_reconcile_v2_join_corosync_file
  become: true
  delegate_to: "{{ join_node }}"