---
- hosts: pi
  gather_facts: no
  tags: pihw
  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
  tags: ntp
  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/chrony.conf' if ansible_facts['distribution'] == 'Ubuntu' else '/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

## BGP STUFF
- hosts: all
  tags: bgp
  tasks:
  - name: gather facts
    setup:
    tags: check
  - name: install FRR
    package:
      name: frr
      state: present
    when: ansible_facts['distribution'] == 'Ubuntu'
    #XXX for arch install it manually with yay

  - name: Enable FRR bgp daemon
    lineinfile:
      dest: /etc/frr/daemons
      regexp: "^bgpd=no"
      line: "bgpd=yes"
      state: present

  - name: Copy frr config
    ansible.builtin.template:
      src: files/frr.conf.j2
      dest: /etc/frr/frr.conf
      owner: frr
      group: frr
      mode: 0640
    notify: restart frr

  - name: Copy systemd netdevs
    ansible.builtin.template:
      src: files/{{item}}.netdev
      dest: /etc/systemd/network/
      owner: root
      group: root
      mode: 0644
    with_items:
      - bgp
      - bgp-backup
    register: netdevs

  - name: Copy systemd bgp network
    ansible.builtin.template:
      src: files/{{item}}.network
      dest: /etc/systemd/network/
      owner: root
      group: root
      mode: 0644
    with_items:
      - bgp
      - bgp-backup
    register: bgpnetworks

  - name: Copy systemd bgp-backup network
    ansible.builtin.template:
      src: files/bgp-backup.network
      dest: /etc/systemd/network/
      owner: root
      group: root
      mode: 0644
    register: networks

  - name: Reload systemd-networkd
    shell: networkctl reload
    when: netdevs.changed or networks.changed or bgpnetworks.changed


  - name: Enable FRR
    service:
      name: frr
      enabled: yes
      state: started


  - name: Check that announces are okay
    delegate_to: ikvps.k3s.fr
    shell: "curl http://[{{bgp_ipv6}}] | grep 'NTP server {{ansible_hostname}}'"
    tags: check

  handlers:
  - name: restart frr
    systemd:
      name: frr
      state: restarted

- hosts: all
  tags: web
  tasks:
  - name: Install nginx
    package:
      name: nginx
      state: present

  - name: Copy nginx config
    ansible.builtin.template:
      src: files/nginx.conf.j2
      dest: /etc/nginx/nginx.conf
    register: nginx_conf

  - name: Enable nginx
    service:
      name: nginx
      enabled: yes
      state: started

  - name: Restart nginx
    systemd:
      name: nginx
      state: restarted
    when: nginx_conf.changed


  - name: ensure /var/www/html exists
    file:
      path: /var/www/html
      state: directory

  - name: Copy index page
    ansible.builtin.template:
      src: files/index.html
      dest: /var/www/html/
      owner: root
      group: root
      mode: 0644