@@ -129,19 +130,19 @@
{gettext("Rain (1h)")}
- {get_weather_field_zero(@weather_packet, :rain_1h)} in
+ {format_weather_value(@weather_packet, :rain_1h, @locale)}
{gettext("Rain (24h)")}
- {get_weather_field_zero(@weather_packet, :rain_24h)} in
+ {format_weather_value(@weather_packet, :rain_24h, @locale)}
{gettext("Rain (since midnight)")}
- {get_weather_field_zero(@weather_packet, :rain_since_midnight)} in
+ {format_weather_value(@weather_packet, :rain_since_midnight, @locale)}
diff --git a/lib/aprsme_web/weather_units.ex b/lib/aprsme_web/weather_units.ex
new file mode 100644
index 0000000..86173cd
--- /dev/null
+++ b/lib/aprsme_web/weather_units.ex
@@ -0,0 +1,98 @@
+defmodule AprsmeWeb.WeatherUnits do
+ @moduledoc """
+ Handles weather unit conversions and formatting based on locale.
+ Supports imperial (US) and metric (international) units.
+ """
+
+ alias Aprsme.Convert
+
+ @doc """
+ Determines the unit system based on locale.
+ Returns :imperial for US, :metric for most other countries.
+ """
+ def unit_system(locale) when is_binary(locale) do
+ case locale do
+ # Default to imperial for English
+ "en" -> :imperial
+ # Spanish-speaking countries mostly use metric
+ "es" -> :metric
+ # Germany uses metric
+ "de" -> :metric
+ # France uses metric
+ "fr" -> :metric
+ # Default to metric for unknown locales
+ _ -> :metric
+ end
+ end
+
+ @doc """
+ Converts temperature from Fahrenheit to Celsius if needed.
+ Returns the temperature in the appropriate unit for the locale.
+ """
+ def format_temperature(temp, locale) when is_number(temp) do
+ case unit_system(locale) do
+ :imperial -> {temp, "°F"}
+ :metric -> {Convert.f_to_c(temp), "°C"}
+ end
+ end
+
+ def format_temperature(temp, _locale), do: {temp, "°F"}
+
+ @doc """
+ Converts wind speed from mph to km/h if needed.
+ Returns the wind speed in the appropriate unit for the locale.
+ """
+ def format_wind_speed(speed, locale) when is_number(speed) do
+ case unit_system(locale) do
+ :imperial -> {speed, "mph"}
+ :metric -> {Convert.mph_to_kph(speed), "km/h"}
+ end
+ end
+
+ def format_wind_speed(speed, _locale), do: {speed, "mph"}
+
+ @doc """
+ Converts rain from inches to mm if needed.
+ Returns the rain amount in the appropriate unit for the locale.
+ """
+ def format_rain(rain, locale) when is_number(rain) do
+ case unit_system(locale) do
+ :imperial -> {rain, "in"}
+ :metric -> {Convert.inches_to_mm(rain), "mm"}
+ end
+ end
+
+ def format_rain(rain, _locale), do: {rain, "in"}
+
+ @doc """
+ Formats pressure (keeps hPa for all locales as it's standard).
+ """
+ def format_pressure(pressure, _locale) when is_number(pressure) do
+ {pressure, "hPa"}
+ end
+
+ def format_pressure(pressure, _locale), do: {pressure, "hPa"}
+
+ @doc """
+ Gets the appropriate unit labels for the locale.
+ """
+ def unit_labels(locale) do
+ case unit_system(locale) do
+ :imperial ->
+ %{
+ temperature: "°F",
+ wind_speed: "mph",
+ rain: "in",
+ pressure: "hPa"
+ }
+
+ :metric ->
+ %{
+ temperature: "°C",
+ wind_speed: "km/h",
+ rain: "mm",
+ pressure: "hPa"
+ }
+ end
+ end
+end