- name: Read netbird config
  slurp:
    src: /var/lib/netbird/default.json
  register: netbird_config_file
  when: netbird_client.iface_blacklist_extra | default([]) | length > 0
  tags: netbird_client_config

- name: Add the extra interface prefixes to IFaceBlackList
  when: netbird_config_file.content is defined
  vars:
    netbird_config: "{{ netbird_config_file.content | b64decode | from_json }}"
    netbird_blacklist_missing: "{{ netbird_client.iface_blacklist_extra | difference(netbird_config.IFaceBlackList | default([])) }}"
  tags: netbird_client_config
  block:
    # netbird writes its in-memory config back on exit, so edit only while it is stopped
    - name: Stop netbird to edit its config
      systemd:
        name: netbird
        state: stopped
      when: netbird_blacklist_missing | length > 0
      notify: restart_netbird
      register: netbird_stopped

    - name: Re-read netbird config after stop
      slurp:
        src: /var/lib/netbird/default.json
      register: netbird_config_stopped
      when: netbird_stopped is changed

    - name: Write IFaceBlackList
      copy:
        dest: /var/lib/netbird/default.json
        content: "{{ cfg | combine({'IFaceBlackList': cfg.IFaceBlackList | default([]) + netbird_client.iface_blacklist_extra | difference(cfg.IFaceBlackList | default([]))}) | to_nice_json(indent=4, sort_keys=False) }}\n"
        mode: "0600"
      vars:
        cfg: "{{ netbird_config_stopped.content | b64decode | from_json }}"
      when: netbird_stopped is changed

- name: Set netbird log level
  copy:
    dest: /etc/systemd/system/netbird.service.d/20-log-level.conf
    content: |
      [Service]
      ExecStart=
      ExecStart=/usr/bin/netbird service run --log-level {{ netbird_client.log_level }} --daemon-addr unix:///var/run/netbird.sock --log-file /var/log/netbird/client.log
    mode: "0644"
  when: netbird_client.log_level | default('') != ''
  notify: restart_netbird
  tags: netbird_client_config