# TBD
# Add fan control config for rasp 4
---

- name: Check if Raspi5
  lineinfile:
    path: /proc/cpuinfo
    regexp: "Raspberry Pi 5"
    state: absent
  register: is_raspi5
  check_mode: yes
  changed_when: false

- name: Check if Raspi4
  lineinfile:
    path: /proc/cpuinfo
    regexp: "Raspberry Pi 4"
    state: absent
  register: is_raspi4
  check_mode: yes
  changed_when: false

- name: Check if PAGESIZE has been set
  lineinfile:
    path: /boot/firmware/config.txt
    regexp: "kernel=kernel8.img"
    state: absent
  register: has_pagesize
  check_mode: yes
  changed_when: false

- name: Set PAGESIZE to 4k
  blockinfile:
    dest: /boot/firmware/config.txt
    marker: "# {mark} ANSIBLE MANAGED BLOCK - PAGESIZE"
    content: |
      # Change PAGESIZE to 4k
      kernel=kernel8.img
  when: is_raspi5.found and not has_pagesize.found
  register: pagesize

- name: Check if manual fan control is enabled
  lineinfile:
    path: /boot/firmware/config.txt
    regexp: "dtparam=pwm_fan_temp0=255"
    state: absent
  register: has_manual_fan_control5
  check_mode: yes
  changed_when: false

- name: Enable manual fan control
  blockinfile:
    dest: /boot/firmware/config.txt
    marker: "# {mark} ANSIBLE MANAGED BLOCK - PWM FAN CONTROL"
    content: |
      # Enable manual fan control
      dtparam=pwm_fan_temp0=255
  when: is_raspi5.found and not has_manual_fan_control5.found
  register: fan_control

- name: Check if fan control is enabled
  lineinfile:
    path: /boot/firmware/config.txt
    regexp: "dtoverlay=pwm,pin=18,func=2"
    state: absent
  register: has_manual_fan_control4
  check_mode: yes
  changed_when: false

- name: Enable fan control
  blockinfile:
    dest: /boot/firmware/config.txt
    content: |
      # Enable fan control
      dtoverlay=pwm,pin=18,func=2
  when: is_raspi4.found and not has_manual_fan_control4.found
  register: fan_control

- name: Reboot to apply changes
  ansible.builtin.reboot:
  when: fan_control.changed or (pagesize and pagesize.changed)