---

- name: load board pin preset
  include_vars: "boards/{{repeater_board}}.yaml"

- name: load RF region preset
  include_vars: "rf/{{repeater_rf_preset}}.yaml"

- name: enable SPI for the LoRa HAT
  become: yes
  lineinfile:
    path: "/boot/firmware/config.txt"
    line: "dtparam=spi=on"
    regexp: "^#?dtparam=spi="
  register: spi_result

- name: remind to reboot for SPI to take effect
  debug:
    msg: "config.txt updated — reboot {{inventory_hostname}} for dtparam=spi=on to take effect"
  when: spi_result.changed

- name: apt install openhop repeater dependencies
  become: yes
  apt:
    name:
      - "git"
      - "python3-venv"
      - "python3-dev"
      - "build-essential"

# Raspberry Pi OS ships the spi/gpio groups and udev rules via
# raspberrypi-sys-mods; Ubuntu images have neither, so create them here.
- name: create spi and gpio device access groups
  become: yes
  group:
    name: "{{item}}"
    system: "yes"
  loop:
    - "spi"
    - "gpio"

- name: grant spi and gpio groups access to their devices
  become: yes
  copy:
    dest: "/etc/udev/rules.d/90-spi-gpio-groups.rules"
    content: |
      SUBSYSTEM=="spidev", GROUP="spi", MODE="0660"
      SUBSYSTEM=="gpio", GROUP="gpio", MODE="0660"
    mode: "0644"
  register: udev_result

- name: apply udev rules to existing devices
  become: yes
  shell: "udevadm control --reload-rules && udevadm trigger --subsystem-match=spidev --subsystem-match=gpio"
  when: udev_result.changed

- name: add openhop repeater user
  become: yes
  user:
    name: "{{repeater_user}}"
    system: "yes"
    shell: "/bin/false"
    home: "{{repeater_data_dir}}"
    create_home: "no"
    groups: "spi,gpio"
    append: "yes"

- name: create openhop repeater directories
  become: yes
  file:
    path: "{{item.path}}"
    state: "directory"
    owner: "{{item.owner}}"
    group: "{{item.owner}}"
    mode: "{{item.mode}}"
  loop:
    - { path: "/opt/openhop_repeater", owner: "root", mode: "0755" }
    - { path: "{{repeater_config_dir}}", owner: "root", mode: "0755" }
    - { path: "{{repeater_data_dir}}", owner: "{{repeater_user}}", mode: "0750" }

- name: check installed openhop_repeater version
  become: yes
  stat:
    path: "{{repeater_venv_dir}}/.installed-{{repeater_version}}"
  register: repeater_installed

- name: install openhop_repeater into venv
  become: yes
  pip:
    name: "git+{{repeater_repo}}@{{repeater_version}}"
    virtualenv: "{{repeater_venv_dir}}"
    virtualenv_command: "python3 -m venv"
  when: not repeater_installed.stat.exists
  notify: restart openhop-repeater

# The pip package does not ship these repo-root files, but the web UI's setup
# wizard reads them from the storage dir; without them the hardware step lists
# no options and cannot proceed.
- name: install web UI radio settings and presets
  become: yes
  get_url:
    url: "{{repeater_repo}}/raw/{{repeater_version}}/{{item}}"
    dest: "{{repeater_data_dir}}/{{item}}"
    owner: "{{repeater_user}}"
    group: "{{repeater_user}}"
    mode: "0644"
    force: "{{not repeater_installed.stat.exists}}"
  loop:
    - "radio-settings.json"
    - "radio-presets.json"

- name: stamp installed openhop_repeater version
  become: yes
  copy:
    dest: "{{repeater_venv_dir}}/.installed-{{repeater_version}}"
    content: "{{repeater_version}}\n"
    mode: "0644"
  when: not repeater_installed.stat.exists

# Group-writable so the daemon can persist its generated jwt_secret and the
# setup-wizard credentials back into the config. Note the trade-off: every
# re-template wipes those daemon-written keys and restarts the service.
- name: configure openhop repeater
  become: yes
  template:
    src: "config.yaml.j2"
    dest: "{{repeater_config_dir}}/config.yaml"
    owner: "root"
    group: "{{repeater_user}}"
    mode: "0660"
  notify: restart openhop-repeater

# The web UI restarts the daemon after config changes via
# "sudo --non-interactive systemctl restart openhop-repeater"; the daemon's
# code expects exactly this sudoers file to exist.
- name: allow repeater user to restart its own service
  become: yes
  copy:
    dest: "/etc/sudoers.d/openhop-repeater"
    content: |
      {{repeater_user}} ALL=(root) NOPASSWD: /usr/bin/systemctl restart openhop-repeater
      {{repeater_user}} ALL=(root) NOPASSWD: /usr/bin/systemctl restart openhop-repeater.service
    mode: "0440"
    validate: "visudo -cf %s"

- name: install openhop-repeater systemd service
  become: yes
  template:
    src: "openhop-repeater.service.j2"
    dest: "/lib/systemd/system/openhop-repeater.service"
    mode: "0644"
  notify: restart openhop-repeater

- name: ensure openhop-repeater service is started
  become: yes
  systemd:
    name: "openhop-repeater.service"
    enabled: "yes"
    state: "started"
    daemon_reload: "yes"