# Copyright (c) 2023 VEXXHOST, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.

- name: Detect if the "lpfc" module is loaded
  ansible.builtin.stat:
    path: /sys/module/lpfc
  register: _lpfc_module

- name: Install the configuration file and reboot if necessary
  when: _lpfc_module.stat.exists
  block:
    - name: Install the configuration file
      ansible.builtin.template:
        src: lpfc.conf.j2
        dest: /etc/modprobe.d/lpfc.conf
        owner: root
        group: root
        mode: "0644"
      register: _lpfc_module_conf

    - name: Get the values for the module parameters
      ansible.builtin.slurp:
        src: /sys/module/lpfc/parameters/{{ item }}
      register: _lpfc_module_parameters
      loop:
        - lpfc_lun_queue_depth
        - lpfc_sg_seg_cnt
        - lpfc_max_luns
        - lpfc_enable_fc4_type

    - name: Detect if the run-time module parameters are set correctly
      ansible.builtin.assert:
        quiet: true
        that:
          - item.content | b64decode | trim | int == lookup('vars', item.item)
        fail_msg: >-
          The module parameter {{ item.item }} is not set correctly, expected:
          {{ lookup('vars', item.item) }}, got: {{ item.content | b64decode | trim }}
      loop: "{{ _lpfc_module_parameters.results }}"
      loop_control:
        label: "{{ item.item }}"
      register: _lpfc_module_parameters_assert
      failed_when: false
      changed_when: _lpfc_module_parameters_assert.failed

    - name: Update "initramfs" if the configuration file has changed
      ansible.builtin.command:
        cmd: update-initramfs -k all -u
      changed_when: _lpfc_module_conf.changed or _lpfc_module_parameters_assert.changed
      when: _lpfc_module_conf.changed or _lpfc_module_parameters_assert.changed

    - name: Reboot the system if the configuration file has changed
      ansible.builtin.include_role:
        name: reboot
      when: _lpfc_module_conf.changed or _lpfc_module_parameters_assert.changed