sharee.bike-App/TINKLib/ViewModel/FeesAndBikes/HelpContactViewModel.cs
2021-06-26 20:57:55 +02:00

79 lines
2.9 KiB
C#

using System.ComponentModel;
using Xamarin.Forms;
using TINK.Services.CopriApi.ServerUris;
using System;
namespace TINK.ViewModel.Contact
{
public class HelpContactViewModel : INotifyPropertyChanged
{
public event PropertyChangedEventHandler PropertyChanged;
/// <summary> Gets the platfrom specific prefix. </summary>
private Func<string, string> ResourceProvider { get; set; }
/// <summary> Holds value wether site caching is on or off.</summary>
bool IsSiteCachingOn { get; }
/// <summary> Constructs view model.</summary>
/// <param name="isSiteCachingOn">Set of user permissions</param>
/// <param name="resourceProvider">Delegate to get an an embedded html ressource. Used as fallback if download from web page does not work and cache is empty.</param>
public HelpContactViewModel(
string hostName,
bool isSiteCachingOn,
Func<string, string> resourceProvider)
{
HostName = hostName;
IsSiteCachingOn = isSiteCachingOn;
ResourceProvider = resourceProvider
?? throw new ArgumentException($"Can not instantiate {typeof(HelpContactViewModel)}-object. No ressource provider availalbe.");
}
/// <summary> Holds the name of the host.</summary>
private string HostName { get; }
/// <summary> Called when page is shown. </summary>
public async void OnAppearing()
{
RentBikeText = new HtmlWebViewSource
{
Html = HostName.GetIsCopri()
? ResourceProvider("HtmlResouces.V02.InfoRentBike.html")
: await ViewModelHelper.GetSource($"https://{HostName}/{CopriHelper.SHAREE_SILTEFOLDERNAME}/tariff_info_1.html", IsSiteCachingOn)
};
TypesOfBikesText = new HtmlWebViewSource
{
Html = HostName.GetIsCopri()
? ResourceProvider("HtmlResouces.V02.InfoTypesOfBikes.html")
: await ViewModelHelper.GetSource($"https://{HostName}/{CopriHelper.SHAREE_SILTEFOLDERNAME}/bike_info.html", IsSiteCachingOn)
};
}
private HtmlWebViewSource rentBikeText;
private HtmlWebViewSource typesOfBikesText;
public HtmlWebViewSource RentBikeText
{
get => rentBikeText;
set
{
rentBikeText = value;
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(RentBikeText)));
}
}
public HtmlWebViewSource TypesOfBikesText
{
get => typesOfBikesText;
set
{
typesOfBikesText = value;
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(TypesOfBikesText)));
}
}
}
}