UV Index Widget for Scriptable

const locationFile = FileManager.local().joinPath(FileManager.local().temporaryDirectory(), 'location.txt');
let location = null;

// Attempt to retrieve current location
try {
  location = await Location.current();
} catch (error) {
  console.error('Error retrieving location:', error);
}

// Fallback to stored location data if current location retrieval fails
if (!location) {
  try {
    const storedLocationData = FileManager.local().readString(locationFile);
    if (storedLocationData) {
      location = JSON.parse(storedLocationData);
      console.log('Using stored location data as a fallback:', location);
    } else {
      console.error('No location data available.');
    }
  } catch (error) {
    console.error('Error reading stored location data:', error);
  }
}

// Update stored location data with the current location (if retrieved)
if (location) {
  FileManager.local().writeString(locationFile, JSON.stringify(location));
}

if (location) {
  const lat = location.latitude;
  const lon = location.longitude;

  const uvIndexRequest = new Request(`https://api.openweathermap.org/data/3.0/onecall?lat=${lat}&lon=${lon}&exclude=hourly,minutely,alerts&appid=REPLACEWITHAPIKEY`);
  const uvIndexResponse = await uvIndexRequest.loadJSON();

  const currentUVIndex = uvIndexResponse.current.uvi.toFixed(1);
  const todayMaxUVIndex = uvIndexResponse.daily[0].uvi.toFixed(1);
  const tomorrowMaxUVIndex = uvIndexResponse.daily[1].uvi.toFixed(1);
  const todayMaxUVIndexTime = new Date(uvIndexResponse.daily[0].dt * 1000).toLocaleTimeString([], { hour: 'numeric', minute: '2-digit' });
  const tomorrowMaxUVIndexTime = new Date(uvIndexResponse.daily[1].dt * 1000).toLocaleTimeString([], { hour: 'numeric', minute: '2-digit' });

  // Create widget
  let widget = new ListWidget();
  widget.setPadding(8, 16, 16, 0);

  // Add title
  let titleText = widget.addText('UV Index ☀️');
  titleText.font = Font.boldSystemFont(16);
  titleText.textColor = Color.white();

  widget.addSpacer(0);

  // Add current UV index
  let currentUVIndexText = widget.addText(currentUVIndex);
  currentUVIndexText.font = Font.systemFont(36);
  currentUVIndexText.textColor = Color.white();

  widget.addSpacer(30);

  // Determine the current date and tomorrow's date
  const now = new Date();
  const today = now.toLocaleDateString('en-US', { day: 'numeric', month: 'long' });
  const tomorrow = new Date(now);
  tomorrow.setDate(tomorrow.getDate() + 1);
  const tomorrowFormatted = tomorrow.toLocaleDateString('en-US', { day: 'numeric', month: 'long' });

  // Add maximum UV index for today or tomorrow
  let maxUVIndexText;
  let maxUVIndexTimeText;
  if (now.getHours() >= 20) {
    maxUVIndexText = widget.addText(`Tomorrow's Max: ${tomorrowMaxUVIndex}`);
    maxUVIndexTimeText = widget.addText(`(around ${tomorrowMaxUVIndexTime})`);
  } else {
    maxUVIndexText = widget.addText(`Today's Max: ${todayMaxUVIndex}`);
    maxUVIndexTimeText = widget.addText(`(around ${todayMaxUVIndexTime})`);
  }
  maxUVIndexText.font = Font.systemFont(14);
  maxUVIndexText.textColor = Color.white();
  maxUVIndexTimeText.font = Font.systemFont(12);
  maxUVIndexTimeText.textColor = Color.white();

  // Set widget background color
  widget.backgroundColor = new Color("#B2675E");

  // Present widget
  if (config.runsInWidget) {
    // Display widget in the widget area
    Script.setWidget(widget);
  } else {
    // Display widget in the app
    widget.presentMedium();
  }

  Script.complete();
} else {
  console.error('Location data not available.');
}