From a61aa38d24bdfc850935eb0582ebb3ba14024d6d Mon Sep 17 00:00:00 2001
From: DaPi <info@danielpichler.com>
Date: Tue, 20 Aug 2024 17:31:50 +0200
Subject: [PATCH] QR-Code Scanner

---
 Jugenddienst Stunden/Models/Stunde.cs         |  2 +-
 .../ViewModels/StundenViewModel.cs            |  1 +
 Jugenddienst Stunden/Views/AboutPage.xaml.cs  | 62 +++++++++++++++----
 Jugenddienst Stunden/Views/StundenPage.xaml   | 10 +--
 4 files changed, 56 insertions(+), 19 deletions(-)

diff --git a/Jugenddienst Stunden/Models/Stunde.cs b/Jugenddienst Stunden/Models/Stunde.cs
index 1effe77..d114c47 100644
--- a/Jugenddienst Stunden/Models/Stunde.cs	
+++ b/Jugenddienst Stunden/Models/Stunde.cs	
@@ -9,7 +9,7 @@ namespace Jugenddienst_Stunden.Models {
 
 		private static readonly string BaseAddress = "http://hours.dauni.mine.nu:81";
 		//private static readonly string apiKey = "MTQzfEFlMVRjQXdZMnI4RmpxZ0FSY3A0VEN2bVZYVXxodHRwOi8vaG91cnMuZGF1bmkubWluZS5udTo4MS9hcHBhcGk="; //Christine
-		private static readonly string apiKey = "MTU0fGpkQUNYTGkvcjMvVk4rNkMyK0dDQkJmMkFwVXxodHRwOi8vaG91cnMuZGF1bmkubWluZS5udTo4MS9hcHBhcGk="; //Damian
+		public static string apiKey = "MTU0fGpkQUNYTGkvcjMvVk4rNkMyK0dDQkJmMkFwVXxodHRwOi8vaG91cnMuZGF1bmkubWluZS5udTo4MS9hcHBhcGk="; //Damian
 		private static readonly string requestUrl = $"{BaseAddress}/appapi?hours";
 
 		public DateTime Date { get; set; }
diff --git a/Jugenddienst Stunden/ViewModels/StundenViewModel.cs b/Jugenddienst Stunden/ViewModels/StundenViewModel.cs
index 4a8b9d9..ecdf4c2 100644
--- a/Jugenddienst Stunden/ViewModels/StundenViewModel.cs	
+++ b/Jugenddienst Stunden/ViewModels/StundenViewModel.cs	
@@ -57,5 +57,6 @@ namespace Jugenddienst_Stunden.ViewModels {
 			OnPropertyChanged(nameof(Hours));
 		}
 
+
 	}
 }
diff --git a/Jugenddienst Stunden/Views/AboutPage.xaml.cs b/Jugenddienst Stunden/Views/AboutPage.xaml.cs
index 8d158b5..73070ca 100644
--- a/Jugenddienst Stunden/Views/AboutPage.xaml.cs	
+++ b/Jugenddienst Stunden/Views/AboutPage.xaml.cs	
@@ -1,28 +1,64 @@
-using ZXing;
-using ZXing.Net.Maui.Controls;
+using Microsoft.Maui.Controls;
+using System.Collections.Generic;
+using ZXing.Net.Maui;
+
 namespace Jugenddienst_Stunden.Views;
 
-public partial class AboutPage : ContentPage
-{
-	public AboutPage()
-	{
+public partial class AboutPage : ContentPage {
+
+	private DateTime _lastDetectionTime;
+	private readonly TimeSpan _detectionInterval = TimeSpan.FromSeconds(3);
+
+	public AboutPage() {
 		InitializeComponent();
+
 		barcodeScannerView.Options = new ZXing.Net.Maui.BarcodeReaderOptions {
 			Formats = ZXing.Net.Maui.BarcodeFormat.QrCode,
 			AutoRotate = true,
 			Multiple = false
 		};
-
 	}
 
 	private void BarcodesDetected(object sender, ZXing.Net.Maui.BarcodeDetectionEventArgs e) {
-		var first = e.Results?.FirstOrDefault();
-		if (first is null) {
-			return;
+		//var first = e.Results?.FirstOrDefault();
+
+		var currentTime = DateTime.Now;
+		if ((currentTime - _lastDetectionTime) > _detectionInterval) {
+			_lastDetectionTime = currentTime;
+			foreach (var barcode in e.Results) {
+				MainThread.InvokeOnMainThreadAsync(() => {
+					DisplayAlert("Barcode erkannt", $"Barcode: {barcode.Format} - {barcode.Value}", "OK");
+					Models.Stunde.apiKey = barcode.Value;
+				});
+			}
 		}
-		Dispatcher.DispatchAsync(async () => {
-			await DisplayAlert("Scan-Ergebnis", $"Barcode: {first.Value}", "OK");
-		});
+
+		//if (first is null) {
+		//	return;
+		//}
+		//Dispatcher.DispatchAsync(async () => {
+		//	await DisplayAlert("Scan-Ergebnis", $"Barcode: {first.Value}", "OK");
+		//});
+		//MainThread.InvokeOnMainThreadAsync(() => {
+		//	DisplayAlert("Barcode erkannt", $"Barcode: {first.Format} - {first.Value}", "OK");
+		//	Models.Stunde.apiKey = first.Value;
+		//});
+
 	}
 
+	protected override void OnDisappearing() {
+		base.OnDisappearing();
+		barcodeScannerView.CameraLocation = CameraLocation.Front;
+		barcodeScannerView.IsDetecting = false;
+		
+	}
+
+	protected override void OnAppearing() {
+		base.OnAppearing();
+		
+		barcodeScannerView.IsDetecting = true;
+		barcodeScannerView.CameraLocation = CameraLocation.Rear;
+	}
+
+
 }
\ No newline at end of file
diff --git a/Jugenddienst Stunden/Views/StundenPage.xaml b/Jugenddienst Stunden/Views/StundenPage.xaml
index 2f2ddf8..c17001d 100644
--- a/Jugenddienst Stunden/Views/StundenPage.xaml	
+++ b/Jugenddienst Stunden/Views/StundenPage.xaml	
@@ -20,11 +20,11 @@
             <Label Text="Überstunden Jahr:" Grid.Row="4" />
             
             
-            <Label BackgroundColor="AliceBlue" Grid.Row="0" Grid.Column="1" Text="{Binding Nominal}" />
-            <Label BackgroundColor="AliceBlue" Grid.Row="1" Grid.Column="1" Text="{Binding ZeitDone}" />
-            <Label BackgroundColor="AliceBlue" Grid.Row="2" Grid.Column="1" Text="{Binding ZeitCalculated}" />
-            <Label BackgroundColor="AliceBlue" Grid.Row="3" Grid.Column="1" Text="{Binding OvertimeMonth}" />
-            <Label BackgroundColor="AliceBlue" Grid.Row="4" Grid.Column="1" Text="{Binding Overtime}" />
+            <Label BackgroundColor="AliceBlue" Grid.Row="0" Grid.Column="1" HorizontalTextAlignment="End" Padding="0,0,5,0" Text="{Binding Nominal}" />
+            <Label BackgroundColor="AliceBlue" Grid.Row="1" Grid.Column="1" HorizontalTextAlignment="End" Padding="0,0,5,0" Text="{Binding ZeitDone}" />
+            <Label BackgroundColor="AliceBlue" Grid.Row="2" Grid.Column="1" HorizontalTextAlignment="End" Padding="0,0,5,0" Text="{Binding ZeitCalculated}" />
+            <Label BackgroundColor="AliceBlue" Grid.Row="3" Grid.Column="1" HorizontalTextAlignment="End" Padding="0,0,5,0" Text="{Binding OvertimeMonth}" />
+            <Label BackgroundColor="AliceBlue" Grid.Row="4" Grid.Column="1" HorizontalTextAlignment="End" Padding="0,0,5,0" Text="{Binding Overtime}" />
         </Grid>
     </VerticalStackLayout>
 </ContentPage>
\ No newline at end of file