Optimize wallpaper update on startup when Windows location is enabled

Author: t1m0thyj

src/AppContext.cs

@@ -32,8 +32,7 @@ public AppContext(string[] args) : base(new HiddenForm())
 
             Task.Run(() =>
             {
-                LocationManager.Initialize();
-                scheduler.RunAndUpdateLocation();
+                scheduler.RunAndUpdateLocation(false, LocationManager.Initialize);
                 MainForm.Invoke(() => LaunchSequence.NextStep());
                 UpdateChecker.Initialize();
             });

src/EventScheduler.cs

@@ -133,9 +133,10 @@ public bool Run(bool forceImageUpdate = false, DisplayEvent overrideEvent = null
             return true;
         }
 
-        public async void RunAndUpdateLocation(bool forceImageUpdate = false)
+        public async void RunAndUpdateLocation(bool forceImageUpdate = false, Action locationReady = null)
         {
             bool result = Run(forceImageUpdate);
+            locationReady?.Invoke();
 
             if (result && JsonConfig.settings.locationMode == 1 && await UwpLocation.UpdateGeoposition())
             {

src/LocationIQ.cs

@@ -2,7 +2,11 @@
 // License, v. 2.0. If a copy of the MPL was not distributed with this
 // file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
+using RestSharp;
 using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Threading.Tasks;
 using System.Windows.Forms;
 
 namespace WinDynamicDesktop
@@ -42,5 +46,45 @@ private static void OnLocationDialogClosed(object sender, FormClosedEventArgs e)
                 LaunchSequence.NextStep();
             }
         }
+
+        public static async Task FetchLocationData(string locationStr, ScheduleDialog dialog)
+        {
+            var client = new RestClient("https://us1.locationiq.com");
+
+            var request = new RestRequest("v1/search.php");
+            request.AddParameter("key", Environment.GetEnvironmentVariable("LOCATIONIQ_API_KEY"));
+            request.AddParameter("q", locationStr);
+            request.AddParameter("format", "json");
+            request.AddParameter("limit", "1");
+
+            var response = await client.ExecuteAsync<List<LocationIQData>>(request);
+
+            if (response.IsSuccessful)
+            {
+                JsonConfig.settings.location = locationStr;
+                HandleLocationSuccess(response.Data[0], dialog);
+            }
+            else
+            {
+                MessageDialog.ShowWarning(_("The location you entered was invalid, or you are not connected to " +
+                    "the Internet. Check your Internet connection and try a different location. You can use a " +
+                    "complete address or just the name of your city/region."), _("Error"));
+            }
+        }
+
+        private static void HandleLocationSuccess(LocationIQData data, ScheduleDialog dialog)
+        {
+            JsonConfig.settings.latitude = double.Parse(data.lat, CultureInfo.InvariantCulture);
+            JsonConfig.settings.longitude = double.Parse(data.lon, CultureInfo.InvariantCulture);
+            SolarData solarData = SunriseSunsetService.GetSolarData(DateTime.Today);
+
+            DialogResult result = MessageDialog.ShowQuestion(string.Format(_("Is this location correct?\n\n{0}\n{1}"),
+                data.display_name, SunriseSunsetService.GetSunriseSunsetString(solarData)), _("Question"));
+
+            if (result == DialogResult.Yes)
+            {
+                dialog.Invoke(new Action(() => dialog.HandleScheduleChange()));
+            }
+        }
     }
 }

src/LocationManager.cs

@@ -166,7 +166,7 @@ private async void okButton_Click(object sender, EventArgs e)
             {
                 if (radioButton1.Checked)
                 {
-                    await LocationIQService.GetLocationData(locationBox.Text, this);
+                    await LocationManager.FetchLocationData(locationBox.Text, this);
                 }
                 else if (radioButton2.Checked)
                 {