---
# NFS Client Role - Main Tasks

- name: Ensure required variables are present
  assert:
    that:
      - nfs_mounts is defined or (nfs_server is defined and nfs_share is defined and nfs_mount_point is defined)
    fail_msg: "You must define either 'nfs_mounts' (a list of mounts) or the trio 'nfs_server', 'nfs_share' and 'nfs_mount_point'."

- name: Install nfs-common package (Debian/Ubuntu)
  apt:
    name: nfs-common
    state: present
  become: true

- name: Build `nfs_mounts` list from single-vars if needed
  set_fact:
    nfs_mounts: "{{ [ {'server': nfs_server, 'share': nfs_share, 'path': nfs_mount_point, 'options': (nfs_options | default(omit)) } ] }}"
  when: nfs_mounts is not defined

- name: Validate each NFS server is reachable (port 2049)
  wait_for:
    host: "{{ item.server }}"
    port: 2049
    timeout: 5
    state: started
  loop: "{{ nfs_mounts }}"
  loop_control:
    label: "{{ item.server }}:{{ item.share }}"

- name: Ensure the NFS share is exported by the server
  shell: |
    showmount -e {{ item.server }} | awk 'NR>1 {print $1}' | grep -x -- "{{ item.share }}"
  register: showmount_check
  failed_when: showmount_check.rc != 0
  changed_when: false
  loop: "{{ nfs_mounts }}"
  loop_control:
    label: "{{ item.server }}:{{ item.share }}"