---

- name: Set package fact
  ansible.builtin.set_fact:
    muninpkgs:
      - muninlite
    munin_need_reconfigure: false
  when: ansible_facts['distribution'] == "LEDE" or ansible_facts['distribution'] == "OpenWRT" or ansible_facts['distribution'] == "OpenWrt"

- name: Set other packages fact
  ansible.builtin.set_fact:
    muninpkgs:
      - munin-node
      - munin-plugins-core
      - munin-plugins-extra
    munin_need_reconfigure: true
  when: ansible_facts['distribution'] == "Debian"

- name: Install munin node packages
  ansible.builtin.package:
    name: "{{ item }}"
    state: present
  loop: "{{ muninpkgs }}"

- name: Munin-node conf file
  ansible.builtin.template:
    src: munin-node.conf.j2
    dest: /etc/munin/munin-node.conf
    mode: 0644
  notify:
    - Restart munin-node
  when: munin_need_reconfigure

## Adding modules for specific functions
# for NginX webservers
- name: Install LWP::UserAgent
  ansible.builtin.package:
    name: libwww-perl
    state: present
  notify:
    - Restart munin-node
  when: "'webservers' in group_names or 'loadbalancers' in group_names"

# for HAProxy servers
- name: Add HAProxy backend module
  ansible.builtin.file:
    src: /usr/share/munin/plugins/haproxy_
    dest: /etc/munin/plugins/haproxy_current
    state: link
  notify:
    - Restart munin-node
  when: "'loadbalancers' in group_names"

# For MariaDB servers
- name: Install Cache::Cache
  ansible.builtin.package:
    name: libcache-cache-perl
    state: present
  notify:
    - Restart munin-node
  when: "'mariadbservers' in group_names"

# For PGSQL servers
- name: Install DBD::Pg
  ansible.builtin.package:
    name: libdbd-pg-perl
    state: present
  notify:
    - Restart munin-node
  when: "'pgsqlservers' in group_names"

# For Munin servers
- name: Execute specific tasks for munin servers
  ansible.builtin.include_tasks: mikrotik.yml
  when: "'muninservers' in group_names"

# for NUT (UPS) servers
- name: Add specific nut value for UPS
  ansible.builtin.file:
    path: "/etc/munin/plugins/nutups_eaton3s_{{ item }}"
    src: /usr/share/munin/plugins/nutups_
    state: link
  notify:
    - Restart munin-node
  when: "'nut_server' in group_names"
  loop:
    - charge
    - voltages

# for physical servers
- name: Execute specific tasks for physical servers
  ansible.builtin.include_tasks: physical_servers.yml
  when: "'hypervisors' in group_names"

- name: Reconfigure munin-node
  ansible.builtin.shell:
    cmd: munin-node-configure --shell | sh  # noqa: risky-shell-pipe
  changed_when: true
  notify:
    - Restart munin-node
  when: munin_need_reconfigure

## Useless junks for everyone
- name: Delete useless junks for everyone
  ansible.builtin.file:
    path: "/etc/munin/plugins/{{ item }}"
    state: absent
  when: munin_need_reconfigure
  loop:
    - users

## Useless junks for LXC
- name: "Delete junks from LXC machines"
  ansible.builtin.file:
    path: "/etc/munin/plugins/{{ item }}"
    state: absent
  notify:
    - Restart munin-node
  when: ansible_facts['virtualization_type'] == "lxc"
  loop:
    - acpi
    - cpuspeed
    - diskstats
    - entropy
    - irqstats

## Useless junks for hypervisors
- name: Execute delete states for hypervisors
  ansible.builtin.include_tasks: hypervisors.yml
  when: "'hypervisors' in group_names"