---
- hosts: pi
  gather_facts: no
  tasks:
  ## LCD STUFF
  - name: Enable i2c on boot/config.txt
    lineinfile:
      dest: /boot/config.txt
      regexp: "^#?dtparam=i2c_arm="
      line: "dtparam=i2c_arm=on"
      insertafter: EOF
      state: present

  - name: Enable i2c module
    lineinfile:
      dest: /etc/modules-load.d/raspberrypi.conf
      regexp: "^#?i2c"
      line: "i2c-dev"
      insertafter: EOF
      state: present

  - name: Copy systemd unit files
    ansible.builtin.copy:
      src: files/display.service
      dest: /etc/systemd/system/
      owner: root
      group: root
      mode: 0644
    register: display_service
    tags: display

  - name: Reload systemd
    ansible.builtin.systemd:
      daemon_reload: yes
    when: display_service.changed
    tags: display

  - name: Enable display service
    ansible.builtin.systemd:
      name: display
      enabled: yes
      state: started
    tags: display

  ## Now the most important part: PPS
  - name: Add PPS tools
    package:
      name: pps-tools
      state: present

  - name: PPS on GPIO
    lineinfile:
      dest: /boot/config.txt
      regexp: "^dtoverlay=pps-gpio"
      line: "dtoverlay=pps-gpio,gpiopin=18"
      state: present


  ## Lower ethernet latency of smsc95xx
  - name: Configure options in /boot/cmdline.txt
    replace:
      path: /boot/cmdline.txt
      regexp: '^([\w](?!.*\b{{ item }}\b).*)$'
      replace: '\1 {{ item }}'
    with_items:
    - smsc95xx.turbo_mode=N
    tags: smsc95xx

  ## Enable UART for the GPS module
  - name: Enable UART
    lineinfile:
      dest: /boot/config.txt
      regexp: "^#?enable_uart="
      line: "enable_uart=1"
      insertafter: EOF
      state: present

# - name: Disable bluetooth XXX makes it really laggy
#   lineinfile:
#     dest: /boot/config.txt
#     regexp: "^dtoverlay=pi3-disable-bt"
#     line: "dtoverlay=pi3-disable-bt"
#     state: present

  - name: Disable serial-getty@ttyS0
    systemd:
      name: serial-getty@ttyS0
      enabled: no
      state: stopped

  - name: copy gpsd config files
    ansible.builtin.copy:
      src: files/gpsd
      dest: /etc/default/gpsd
      owner: root
      group: root
      mode: 0644
    tags: gpsd

  - name: start and enable gpsd
    systemd:
      name: gpsd
      enabled: yes
      state: started
    tags: gpsd




- hosts: all
  tasks:

  - name: Disable systemd LLMNR
    lineinfile:
      dest: /etc/systemd/resolved.conf
      regexp: "^#?LLMNR="
      line: "LLMNR=no"
      insertafter: EOF
      state: present
    register: resolved_conf

  - name: Restart systemd-resolved
    systemd:
      name: systemd-resolved
      state: restarted
    when: resolved_conf.changed

  - name: Install chrony
    package:
      name: chrony
      state: present
    notify: restart chrony

  - name: Configure chrony
    template:
      src: files/chrony.conf.j2
      dest: /etc/chrony.conf
      owner: root
      group: root
      mode: 0644
    notify: restart chrony
    tags: chrony

  - name: Enable chrony
    service:
      name: chronyd
      enabled: yes
      state: started

  handlers:
  - name: restart chrony
    service:
      name: chronyd
      state: restarted