defmodule AprsmeWeb.WeatherLive.CallsignViewTest do
  use AprsmeWeb.ConnCase

  import Phoenix.LiveViewTest

  alias AprsmeWeb.WeatherLive.CallsignView

  describe "mount via HTTP" do
    test "renders the weather view for a callsign", %{conn: conn} do
      {:ok, _lv, html} = live(conn, ~p"/weather/N0CALL", on_error: :warn)
      assert html =~ "N0CALL"
    end

    test "normalizes lowercase callsign to uppercase", %{conn: conn} do
      {:ok, _lv, html} = live(conn, ~p"/weather/k1abc", on_error: :warn)
      assert html =~ "K1ABC"
    end
  end

  describe "has_weather_field?/2" do
    test "returns false for missing fields" do
      refute CallsignView.has_weather_field?(%{}, :temperature)
    end

    test "returns false for nil values" do
      refute CallsignView.has_weather_field?(%{temperature: nil}, :temperature)
    end

    test "returns true for numeric values" do
      assert CallsignView.has_weather_field?(%{temperature: 72.5}, :temperature)
    end

    test "returns true for non-empty string values" do
      assert CallsignView.has_weather_field?(%{temperature: "72.5"}, :temperature)
    end

    test "returns false for empty string" do
      refute CallsignView.has_weather_field?(%{temperature: ""}, :temperature)
    end
  end

  describe "get_weather_field_zero/2" do
    test "replaces N/A with 0" do
      assert CallsignView.get_weather_field_zero(%{}, :temperature) == "0"
    end

    test "passes numeric values through" do
      assert CallsignView.get_weather_field_zero(%{temperature: 72.5}, :temperature) == 72.5
    end
  end

  describe "format_weather_value/3" do
    test "returns nil for missing values" do
      assert CallsignView.format_weather_value(%{}, :temperature, "en") == nil
    end

    test "formats numeric temperature with units" do
      result = CallsignView.format_weather_value(%{temperature: 72.5}, :temperature, "en")
      assert is_binary(result)
      assert result =~ "72"
    end

    test "formats numeric wind_speed with a space separator" do
      result = CallsignView.format_weather_value(%{wind_speed: 10.0}, :wind_speed, "en")
      assert is_binary(result)
      # Unit appears after the numeric value with a separator.
      assert String.contains?(result, " ")
    end

    test "handles string numeric values" do
      result = CallsignView.format_weather_value(%{temperature: "72.5"}, :temperature, "en")
      assert is_binary(result)
    end

    test "handles string non-numeric values for untracked keys" do
      # humidity has no entry in @weather_formatters, so binary values are
      # returned as-is.
      assert CallsignView.format_weather_value(%{humidity: "65"}, :humidity, "en") == "65"
    end

    test "returns nil for unparseable string values on tracked keys" do
      assert CallsignView.format_weather_value(%{temperature: "not-a-number"}, :temperature, "en") ==
               nil
    end

    test "returns stringified value for untracked numeric keys" do
      # humidity is numeric but not in the formatter map — passes through as string.
      assert CallsignView.format_weather_value(%{humidity: 65}, :humidity, "en") == "65"
    end

    test "formats rain fields with units" do
      result = CallsignView.format_weather_value(%{rain_1h: 0.25}, :rain_1h, "en")
      assert is_binary(result)
      assert String.contains?(result, " ")
    end
  end

  describe "live packet broadcast handling" do
    test "ignores non-matching postgres_packet broadcasts", %{conn: conn} do
      {:ok, lv, _html} = live(conn, ~p"/weather/OWNCALL", on_error: :warn)

      # Broadcast an unrelated packet with no weather data
      unrelated = %{
        sender: "DIFFERENT",
        temperature: nil,
        humidity: nil,
        pressure: nil,
        wind_speed: nil,
        wind_direction: nil,
        rain_1h: nil
      }

      send(lv.pid, {:postgres_packet, unrelated})
      Process.sleep(20)
      assert Process.alive?(lv.pid)
    end

    test "ignores postgres_packet with wrong callsign", %{conn: conn} do
      {:ok, lv, _html} = live(conn, ~p"/weather/MYCALL", on_error: :warn)

      wrong_call = %{
        sender: "OTHER",
        temperature: 72.5,
        humidity: 50,
        pressure: nil,
        wind_speed: nil,
        wind_direction: nil,
        rain_1h: nil
      }

      send(lv.pid, {:postgres_packet, wrong_call})
      Process.sleep(20)
      assert Process.alive?(lv.pid)
    end

    test "ignores unknown messages without crashing", %{conn: conn} do
      {:ok, lv, _html} = live(conn, ~p"/weather/UNKCALL", on_error: :warn)

      send(lv.pid, :some_unknown_message)
      Process.sleep(20)
      assert Process.alive?(lv.pid)
    end
  end
end