- hosts: localhost
  vars:
    dhcp_start_num: 10
  vars_prompt:
    - name: node_network_ipv4
      prompt: 'IPv4 network?'
      default: '172.29.0.1/24'
    - name: node_network_ipv6
      prompt: 'IPv6 network?'
      default: 'fc00:1234:5678::/64'
    - name: batman_interface
      prompt: 'Name of the BATMAN interface?'
      default: batman0
    - name: batman_limit_upload
      prompt: 'Limit BATMAN upload? (none no limit)'
    - name: batman_limit_download
      prompt: 'Limit BATMAN download? (none no limit)'
    - name: fastd_secret_key
      prompt: 'fastd secret key?'
    - name: fastd_log_level
      prompt: 'fastd log level?'
      default: info
    - name: fastd_verify_client_peers
      prompt: 'fastd verify client peers?'
      default: no
    - name: fastd_mtu
      prompt: 'fastd MTU?'
      default: 1300
    - name: fastd_peer_limit
      prompt: 'fastd peer limit?'
      default: 100
    - name: max_number_of_clients
      prompt: 'Max number of clients'
      default: 100

  tasks:
    - stat:
        path: .env
      register: env_file

    - fail:
        msg: "The .env file already exists so it's seem the node was already set up. Delete the file and repeat if you want to set up again."
      when: env_file.stat.exists

    - copy:
        content: |
          BATMAN_IPV4={{ node_network_ipv4 }}
          BATMAN_IPV6={{ node_network_ipv6 }}
          BATMAN_BRIDGE={{ batman_interface }}
          BATMAN_LIMIT_DOWNLOAD={{ batman_limit_download }}
          BATMAN_LIMIT_UPLOAD={{ batman_limit_upload }}

          FASTD_BATMAN_INTERFACE={{ batman_interface }}
          FASTD_SECRET_KEY={{ fastd_secret_key }}
          FASTD_LOG_LEVEL={{ fastd_log_level }}
          FASTD_DONT_VERIFY_PEERS={% if fastd_verify_client_peers %}0{% else %}1{% endif %}
          FASTD_INTERFACE=
          FASTD_PEER_LIMIT={{ fastd_peer_limit }}
          FASTD_MTU={{ fastd_mtu }}

          DHCPD_V4_NET={{ node_network_ipv4 |ipaddr('net') }}
          DHCPD_V4_RANGE={{ node_network_ipv4 |ipaddr(dhcp_start_num |int) }} {{ node_network_ipv4 |ipaddr((dhcp_start_num |int) + (max_number_of_clients |int)) }}
          DHCPD_V6_NET={{ node_network_ipv6 }}
          DHCPD_V6_RANGE={{ node_network_ipv6 |ipaddr(dhcp_start_num |int) }} {{ node_network_ipv6 |ipaddr((dhcp_start_num |int) + (max_number_of_clients |int)) }}
          DHCPD_INTERFACE={{ batman_interface }}

          RADVD_INTERFACE={{ batman_interface }}
          RADVD_PREFIX={{ node_network_ipv6 }}
          RADVD_SOURCE_LL_ADDRESS=on
          RADVD_ADV_MANAGEMENT_FLAG=on
          RADVD_OTHER_CONFIG_FLAG=on
          RADVD_MTU={{ fastd_mtu }}
        dest: .env
        mode: u=rw,g=,o=
      when: False