Add basic weather plugin

src/DesktopMagic/BuiltInPlugins/WeatherPlugin.cs

@@ -0,0 +1,207 @@
+using DesktopMagic.Api;
+using DesktopMagic.Api.Settings;
+
+using System;
+using System.Diagnostics;
+using System.Drawing;
+using System.Globalization;
+using System.Net.Http;
+using System.Text.Json;
+using System.Threading.Tasks;
+
+namespace DesktopMagic.BuiltInPlugins;
+
+public class WeatherPlugin : Plugin
+{
+    [Setting("city-name", "City Name:")]
+    private readonly TextBox cityInput = new TextBox("Berlin");
+
+    [Setting("search-btn")]
+    private readonly Button searchButton = new Button("Update Location");
+
+    [Setting("show-city", "Show City Name")]
+    private readonly CheckBox showCity = new CheckBox(true);
+
+    [Setting("show-temp", "Show Temperature")]
+    private readonly CheckBox showTemp = new CheckBox(true);
+
+    [Setting("show-status", "Show Weather Status")]
+    private readonly CheckBox showStatus = new CheckBox(true);
+
+    [Setting("show-time", "Show Last Updated")]
+    private readonly CheckBox showTime = new CheckBox(false);
+
+    [Setting("font-size", "Base Font Size")]
+    private readonly Slider fontSizeSlider = new Slider(10, 100, 30);
+
+    public override int UpdateInterval { get; set; } = 900000; // 15 Minutes
+
+    private readonly HttpClient httpClient = new HttpClient();
+
+    private string? cachedLat;
+    private string? cachedLon;
+    private string currentTemp = "--";
+    private string weatherStatus = "Enter city and search";
+    private string foundCityName = "No City Selected";
+    private string lastUpdated = "";
+    private bool isLoading = false;
+
+    public override async void Start()
+    {
+        httpClient.DefaultRequestHeaders.UserAgent.ParseAdd("Mozilla/5.0 (DesktopMagic)");
+
+        // Setup Event Handlers for instant UI updates when settings change
+        showCity.OnValueChanged += Application.UpdateWindow;
+        showTemp.OnValueChanged += Application.UpdateWindow;
+        showStatus.OnValueChanged += Application.UpdateWindow;
+        showTime.OnValueChanged += Application.UpdateWindow;
+        fontSizeSlider.OnValueChanged += Application.UpdateWindow;
+
+        await UpdateLocationAndWeather();
+        Application.UpdateWindow();
+
+        searchButton.OnClick += () =>
+        {
+            isLoading = true;
+            Application.UpdateWindow();
+
+            _ = Task.Run(async () =>
+            {
+                await UpdateLocationAndWeather();
+                isLoading = false;
+                Application.UpdateWindow();
+            });
+        };
+    }
+
+    public override Bitmap Main()
+    {
+        // Periodic background update
+        if (!isLoading && cachedLat != null && cachedLon != null)
+        {
+            _ = UpdateWeatherOnly(cachedLat, cachedLon);
+        }
+
+        Bitmap bmp = new Bitmap(1200, 800);
+        bmp.SetResolution(300, 300);
+
+        using (Graphics g = Graphics.FromImage(bmp))
+        {
+            g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
+            g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAliasGridFit;
+            g.Clear(Color.Transparent);
+
+            int lineCount = 0;
+            int baseSize = (int)fontSizeSlider.Value;
+
+            if (isLoading)
+            {
+                DrawLine(bmp, g, "Fetching...", ref lineCount, baseSize, FontStyle.Italic);
+            }
+            else
+            {
+                if (showCity.Value)
+                {
+                    DrawLine(bmp, g, foundCityName.ToUpper(), ref lineCount, baseSize, FontStyle.Bold);
+                }
+
+                if (showTemp.Value)
+                {
+                    DrawLine(bmp, g, currentTemp, ref lineCount, baseSize, FontStyle.Bold);
+                }
+
+                if (showStatus.Value)
+                {
+                    DrawLine(bmp, g, weatherStatus, ref lineCount, baseSize, FontStyle.Regular);
+                }
+
+                if (showTime.Value && !string.IsNullOrEmpty(lastUpdated))
+                {
+                    DrawLine(bmp, g, $"Updated: {lastUpdated}", ref lineCount, baseSize, FontStyle.Italic);
+                }
+            }
+        }
+
+        return bmp;
+    }
+
+    private void DrawLine(Bitmap bitmap, Graphics graphics, string text, ref int lineCount, int fontSize, FontStyle style)
+    {
+        using Font font = new Font(Application.Theme.Font, fontSize, style);
+        SizeF textSize = graphics.MeasureString(text, font);
+
+        float x = (bitmap.Width - textSize.Width) / 2;
+        // Adjust vertical spacing based on font size
+        float y = (lineCount == 0) ? 60 : (lineCount * (textSize.Height + 10)) + 60;
+
+        using Brush brush = new SolidBrush(Application.Theme.PrimaryColor);
+        graphics.DrawString(text, font, brush, x, y);
+
+        lineCount++;
+    }
+
+    private async Task UpdateLocationAndWeather()
+    {
+        try
+        {
+            string geoUrl = $"https://geocoding-api.open-meteo.com/v1/search?name={Uri.EscapeDataString(cityInput.Value.Trim())}&count=1&language=en&format=json";
+            string geoJson = await httpClient.GetStringAsync(geoUrl);
+
+            using JsonDocument geoDoc = JsonDocument.Parse(geoJson);
+            if (!geoDoc.RootElement.TryGetProperty("results", out JsonElement results) || results.GetArrayLength() == 0)
+            {
+                foundCityName = cityInput.Value;
+                currentTemp = "--";
+                weatherStatus = "City not found";
+                return;
+            }
+
+            JsonElement location = results[0];
+            cachedLat = location.GetProperty("latitude").GetDouble().ToString(CultureInfo.InvariantCulture);
+            cachedLon = location.GetProperty("longitude").GetDouble().ToString(CultureInfo.InvariantCulture);
+            foundCityName = location.GetProperty("name").GetString() ?? cityInput.Value;
+
+            // We update the textbox to the "official" name found by the API
+            cityInput.Value = foundCityName;
+
+            await UpdateWeatherOnly(cachedLat, cachedLon);
+        }
+        catch (Exception ex)
+        {
+            Debug.WriteLine($"Error: {ex.Message}");
+            weatherStatus = "Connection Error";
+        }
+    }
+
+    private async Task UpdateWeatherOnly(string lat, string lon)
+    {
+        try
+        {
+            string weatherUrl = $"https://api.open-meteo.com/v1/forecast?latitude={lat}&longitude={lon}&current_weather=true";
+            string weatherJson = await httpClient.GetStringAsync(weatherUrl);
+
+            using JsonDocument weatherDoc = JsonDocument.Parse(weatherJson);
+            JsonElement current = weatherDoc.RootElement.GetProperty("current_weather");
+
+            currentTemp = $"{current.GetProperty("temperature").GetDouble()}°C";
+            weatherStatus = MapWeatherCode(current.GetProperty("weathercode").GetInt32());
+            lastUpdated = DateTime.Now.ToString("HH:mm");
+        }
+        catch { /* Ignore background update errors */ }
+    }
+
+    private string MapWeatherCode(int code)
+    {
+        return code switch
+        {
+            0 => "Clear Sky",
+            1 or 2 or 3 => "Partly Cloudy",
+            45 or 48 => "Foggy",
+            51 or 53 or 55 => "Drizzle",
+            61 or 63 or 65 => "Rainy",
+            71 or 73 or 75 => "Snowy",
+            95 or 96 or 99 => "Thunderstorm",
+            _ => "Cloudy"
+        };
+    }
+}

src/DesktopMagic/MainWindow.xaml.cs

@@ -27,7 +27,8 @@ namespace DesktopMagic
             {new((string)App.LanguageDictionary["musicVisualizer"], 1), typeof(MusicVisualizerPlugin)},
             {new((string)App.LanguageDictionary["time"],2), typeof(TimePlugin)},
             {new((string)App.LanguageDictionary["date"],3), typeof(DatePlugin)},
-            {new((string)App.LanguageDictionary["cpuUsage"], 4), typeof(CpuMonitorPlugin)}
+            {new((string)App.LanguageDictionary["cpuUsage"], 4), typeof(CpuMonitorPlugin)},
+            {new("Weather", 5), typeof(WeatherPlugin)},
         };
 
         private bool loaded = false;
@@ -376,7 +377,7 @@ namespace DesktopMagic
 
                 TextBlock textBlock = new()
                 {
-                    Text = $"{settingElement.Name}:",
+                    Text = string.IsNullOrWhiteSpace(settingElement.Name) ? string.Empty : $"{settingElement.Name}:",
                     Padding = new Thickness(0, 0, 3, 0),
                     VerticalAlignment = VerticalAlignment.Center
                 };