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108 lines
3.4 KiB
108 lines
3.4 KiB
using GMCabsDriverAssistant.Models;
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using GMCabsDriverAssistant.Services;
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using GMCabsDriverAssistant.Utils;
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using QRCoder;
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using System;
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using System.Collections.Generic;
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using System.Collections.ObjectModel;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace GMCabsDriverAssistantSolution.ViewModels
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{
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public class CouponsViewModel : BaseViewModel
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{
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#region Fields
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private string emptyViewMessage;
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#endregion
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#region Properties
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public string EmptyViewMessage
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{
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get => emptyViewMessage;
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set => SetProperty(ref emptyViewMessage, value);
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}
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public ObservableCollection<CouponDto> Coupons { get; }
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public Command SyncCouponCommand { get; }
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#endregion
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#region Constructor
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[Obsolete]
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public CouponsViewModel()
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{
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Title = "Coupons";
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SyncCouponCommand = new Command(async () => await GetCoupons());
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Coupons = new ObservableCollection<CouponDto>();
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HandleReceivedMessages();
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}
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#endregion
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#region Methods
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public void OnAppearing()
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{
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Task.Run(async () => await GetCoupons());
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}
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private async Task GetCoupons()
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{
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EmptyViewMessage = "Loading Coupons...";
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string appToken = Preferences.Get(SecureStorageData.Token, "");
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GMCabsDriverService gMCabsDriverService = new GMCabsDriverService();
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Coupons.Clear();
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List<CouponDto> coupons = await gMCabsDriverService.GetCoupons(appToken);
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if (coupons != null && coupons.Count > 0)
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{
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foreach (CouponDto coupon in coupons)
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{
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QRCodeGenerator qrGenerator = new QRCodeGenerator();
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QRCodeData qrCodeData = qrGenerator.CreateQrCode(coupon.Id.ToString(), QRCodeGenerator.ECCLevel.Q);
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BitmapByteQRCode qrCode = new BitmapByteQRCode(qrCodeData);
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byte[] qrCodeAsBitmapByteArr = qrCode.GetGraphic(20);
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coupon.Image = ImageSource.FromStream(() => new MemoryStream(qrCodeAsBitmapByteArr));
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Coupons.Add(coupon);
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}
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}
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else
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{
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EmptyViewMessage = "No Coupons available";
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}
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}
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[Obsolete]
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void HandleReceivedMessages()
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{
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MessagingCenter.Unsubscribe<App, CouponDto>(this, nameof(App));
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MessagingCenter.Subscribe<App, CouponDto>(this, nameof(App), (sender, couponDto) => {
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Device.BeginInvokeOnMainThread(() => {
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CouponDto redeemedcoupon = new CouponDto
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{
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Id = couponDto.Id,
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Status = couponDto.Status
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};
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List<CouponDto> copyCoupons = new List<CouponDto>(Coupons);
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Coupons.Clear();
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foreach (var item in copyCoupons)
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{
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if (item.Id == redeemedcoupon.Id)
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{
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item.Image = ImageSource.FromFile("scanned.png");
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}
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Coupons.Add(item);
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}
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});
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});
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}
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#endregion
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}
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}
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