---
# Migration optionnelle vers proxmox_node si différent du nœud du template.
# Déclenchée uniquement si proxmox_node est défini et != resolved_node (nœud du clone).
# La VM doit être arrêtée — ce qui est le cas entre le clone et le démarrage.

- name: deploy-vm | migrate VM to target node
  when:
    - proxmox_node | default('') | length > 0
    - proxmox_node != resolved_node
  block:
    # Proxmox impose un ticket de session pour les appels POST directs (CSRF)
    - name: deploy-vm | authenticate to Proxmox API (migration)
      ansible.builtin.uri:
        url:              "https://{{ proxmox_host }}:8006/api2/json/access/ticket"
        method:           POST
        body_format:      form-urlencoded
        body:
          username: "{{ proxmox_api_user }}"
          password: "{{ proxmox_api_password }}"
        validate_certs:   "{{ proxmox_validate_certs }}"
        status_code:      200
      register: _proxmox_auth
      no_log: true

    - name: "deploy-vm | migrate '{{ vm_name }}' : {{ resolved_node }} → {{ proxmox_node }}"
      ansible.builtin.uri:
        url: >-
          https://{{ proxmox_host }}:8006/api2/json/nodes/{{ resolved_node }}/qemu/{{ resolved_vm_id }}/migrate
        method:           POST
        headers:
          Cookie:               "PVEAuthCookie={{ _proxmox_auth.json.data.ticket }}"
          CSRFPreventionToken:  "{{ _proxmox_auth.json.data.CSRFPreventionToken }}"
        body_format:      form-urlencoded
        body:
          target:             "{{ proxmox_node }}"
          online:             0
          "with-local-disks": "{{ 1 if vm_migrate_with_local_disks | bool else 0 }}"
        validate_certs:   "{{ proxmox_validate_certs }}"
        status_code:      200
      register: _migrate_result

    # Proxmox retourne un UPID (ex: UPID:node:pid:…) — on poll jusqu'à status = stopped
    - name: deploy-vm | wait for migration task to complete
      ansible.builtin.uri:
        url: >-
          https://{{ proxmox_host }}:8006/api2/json/nodes/{{ resolved_node }}/tasks/{{ _migrate_result.json.data | urlencode }}/status
        method:         GET
        headers:
          Cookie: "PVEAuthCookie={{ _proxmox_auth.json.data.ticket }}"
        validate_certs: "{{ proxmox_validate_certs }}"
      register: _migration_status
      until:   _migration_status.json.data.status == 'stopped'
      retries: "{{ (vm_wait_timeout | int / 10) | int }}"
      delay:   10

    - name: deploy-vm | assert migration succeeded
      ansible.builtin.assert:
        that: _migration_status.json.data.exitstatus == 'OK'
        fail_msg: >-
          Migration de '{{ vm_name }}' vers '{{ proxmox_node }}' échouée :
          {{ _migration_status.json.data.exitstatus }}

    - name: deploy-vm | update resolved_node after migration
      ansible.builtin.set_fact:
        resolved_node: "{{ proxmox_node }}"