defmodule Towerops.Snmp.Profiles.Vendors.ProximTest do
  use Towerops.DataCase, async: true

  import Mox

  alias Towerops.Snmp.Profiles.Vendors.Proxim
  alias Towerops.Snmp.SnmpMock

  setup :verify_on_exit!

  @client_opts [
    ip: "192.168.1.1",
    community: "public",
    version: "2c",
    port: 161,
    timeout: 5000
  ]

  describe "profile_names/0" do
    test "returns proxim profile name" do
      assert Proxim.profile_names() == ["proxim"]
    end
  end

  describe "detect_hardware/1" do
    test "detects hardware from model OID" do
      expect(SnmpMock, :get, fn _, "1.3.6.1.4.1.11898.2.1.1.1.0", _ ->
        {:ok, "Tsunami MP-8150"}
      end)

      assert Proxim.detect_hardware(@client_opts) == "Tsunami MP-8150"
    end

    test "returns nil when OID unavailable" do
      expect(SnmpMock, :get, fn _, _, _ ->
        {:error, :no_such_object}
      end)

      assert Proxim.detect_hardware(@client_opts) == nil
    end
  end

  describe "wireless_oid_defs/0" do
    test "returns list of wireless sensor definitions" do
      defs = Proxim.wireless_oid_defs()

      assert is_list(defs)
      assert [_ | _] = defs
    end

    test "includes RSSI sensor" do
      defs = Proxim.wireless_oid_defs()
      rssi = Enum.find(defs, &(&1.sensor_descr == "RSSI"))

      assert rssi
      assert rssi.sensor_type == "rssi"
      assert rssi.sensor_unit == "dBm"
    end

    test "includes SNR sensor" do
      defs = Proxim.wireless_oid_defs()
      snr = Enum.find(defs, &(&1.sensor_descr == "SNR"))

      assert snr
      assert snr.sensor_type == "snr"
      assert snr.sensor_unit == "dB"
    end

    test "includes link quality sensor" do
      defs = Proxim.wireless_oid_defs()
      quality = Enum.find(defs, &(&1.sensor_descr == "Link Quality"))

      assert quality
      assert quality.sensor_type == "quality"
      assert quality.sensor_unit == "%"
    end
  end

  describe "discover_wireless_sensors/1" do
    test "discovers sensors when SNMP responds" do
      expect(SnmpMock, :get, 4, fn _, oid, _ ->
        cond do
          String.contains?(oid, "11898.2.1.18.1.2.0") -> {:ok, -58}
          String.contains?(oid, "11898.2.1.18.1.3.0") -> {:ok, 28}
          String.contains?(oid, "11898.2.1.18.1.4.0") -> {:ok, 92}
          String.contains?(oid, "11898.2.1.18.2.1.0") -> {:ok, 5}
          true -> {:error, :no_such_object}
        end
      end)

      sensors = Proxim.discover_wireless_sensors(@client_opts)

      assert is_list(sensors)
      assert length(sensors) == 4
    end

    test "returns empty list when no sensors respond" do
      expect(SnmpMock, :get, 4, fn _, _, _ ->
        {:error, :no_such_object}
      end)

      sensors = Proxim.discover_wireless_sensors(@client_opts)

      assert sensors == []
    end
  end
end
