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237 lines
7.7 KiB
237 lines
7.7 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 CouponsV2ViewModel : BaseViewModel
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{
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#region Fields
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Page page;
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private string emptyViewMessage;
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public ImageSource image;
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public float amount;
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public DateTime expiryDate;
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private CouponDto _selectedCoupon;
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private bool _hasCoupons = false;
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private bool _hasEmptyMessage = false;
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private bool _isNextButton = false;
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private bool _isBackButton = false;
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int couponPosition = 0;
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int couponCount = 0;
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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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public ImageSource Image
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{
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get => image;
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set => SetProperty(ref image, value);
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}
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public float Amount
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{
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get => amount;
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set => SetProperty(ref amount, value);
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}
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public DateTime ExpiryDate
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{
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get => expiryDate;
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set => SetProperty(ref expiryDate, value);
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}
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public CouponDto SelectedCoupon
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{
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get => _selectedCoupon;
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set => SetProperty(ref _selectedCoupon, value);
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}
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public bool HasCoupons
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{
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get => _hasCoupons;
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set => SetProperty(ref _hasCoupons, value);
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}
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public bool HasEmptyMessage
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{
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get => _hasEmptyMessage;
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set => SetProperty(ref _hasEmptyMessage, value);
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}
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public bool IsNextButton
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{
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get => _isNextButton;
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set => SetProperty(ref _isNextButton, value);
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}
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public bool IsBackButton
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{
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get => _isBackButton;
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set => SetProperty(ref _isBackButton, value);
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}
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public Command NextCouponCommand { get; }
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public Command BackCouponCommand { get; }
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public Command RedemptionDetails { get; }
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#endregion
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#region Constructor
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public CouponsV2ViewModel(Page page)
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{
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this.page = page;
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Title = "Available Coupons";
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SyncCouponCommand = new Command(async () => await GetCoupons());
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BackCouponCommand = new Command(() => SelectCouponOption(true));
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NextCouponCommand = new Command(() => SelectCouponOption(false));
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RedemptionDetails = new Command(() => RedemptionDetailsDialog());
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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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HasCoupons = false;
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IsBackButton = false;
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IsNextButton = false;
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HasEmptyMessage = true;
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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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couponPosition = 0;
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couponCount = coupons.Count;
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HasCoupons = true;
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HasEmptyMessage = false;
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if (couponCount == 1)
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{
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IsBackButton = false;
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IsNextButton = false;
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}
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else
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{
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IsNextButton = true;
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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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Console.WriteLine("Before Position :" + couponPosition);
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Image = Coupons[couponPosition].Image;
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}
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else
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{
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HasCoupons = false;
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HasEmptyMessage = true;
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EmptyViewMessage = "No Coupons available";
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}
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}
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private void SelectCouponOption(bool isback)
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{
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if (isback)
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{
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couponPosition = couponPosition - 1;
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if (couponPosition + 1 == 1 && couponCount > 1)
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{
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IsBackButton = false;
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IsNextButton = true;
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}
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else
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{
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IsNextButton = true;
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}
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}
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else
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{
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couponPosition = couponPosition + 1;
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IsBackButton = true;
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if (couponCount == couponPosition + 1 && couponCount > 1)
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{
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IsNextButton = false;
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}
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}
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SelectedCoupon = Coupons[couponPosition];
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Image = Coupons[couponPosition].Image;
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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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Console.WriteLine("After Position :" + couponPosition);
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SelectedCoupon = Coupons[couponPosition];
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Image = Coupons[couponPosition].Image;
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});
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});
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}
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private async void RedemptionDetailsDialog()
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{
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int issuedFromLocationID = Coupons[couponPosition].IssuedLocationID;
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string appToken = Preferences.Get(SecureStorageData.Token, "");
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GMCabsDriverService gMCabsDriverService = new GMCabsDriverService();
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LocationVoucherDto locationVoucher = await gMCabsDriverService.GetLocationVoucherByLocationID(appToken, issuedFromLocationID);
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if (locationVoucher != null)
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{
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string voucherOfferText = locationVoucher.VoucherOfferText.Replace("<h1>", "").Replace("</h1>", "");
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await page.DisplayAlert("Redemption Details", voucherOfferText, "Ok");
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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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