sharee.bike-App/TINKLib/ViewModel/Contact/ContactPageViewModel.cs

324 lines
11 KiB
C#
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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Threading.Tasks;
using System.Windows.Input;
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using Plugin.Messaging;
using Serilog;
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using TINK.Model;
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using TINK.Model.Stations;
using TINK.Model.Stations.StationNS;
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using TINK.MultilingualResources;
using TINK.View;
using Xamarin.Essentials;
using Xamarin.Forms;
namespace TINK.ViewModel.Info
{
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/// <summary> View model for contact page.</summary>
public class ContactPageViewModel : INotifyPropertyChanged
{
/// <summary>
/// Mail address for app related support.
/// </summary>
public const string APPSUPPORTMAILADDRESS = "hotline@sharee.bike";
/// <summary> Reference on view service to show modal notifications and to perform navigation. </summary>
private IViewService ViewService { get; }
/// <summary> Station selected by user. </summary>
private IStation SelectedStation { get; set; } = new NullStation();
/// <summary> Holds the name of the app (sharee.bike, Mein konrad, ...)</summary>
string AppFlavorName { get; }
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/// <summary> Reference on the tink app instance. </summary>
private ITinkApp TinkApp { get; }
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/// <summary> Holds a reference to the external trigger service. </summary>
private Action OpenUrlInExternalBrowser { get; }
Func<string> CreateAttachment { get; }
/// <summary> Notifies view about changes. </summary>
public event PropertyChangedEventHandler PropertyChanged;
/// <summary> Constructs a contact page view model. </summary>
/// <param name="appFlavorName">Holds the name of the app.</param>
/// <param name="openUrlInExternalBrowser">Action to open an external browser.</param>
/// <param name="viewService">View service to notify user.</param>
public ContactPageViewModel(
string appFlavorName,
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ITinkApp tinkApp,
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Func<string> createAttachment,
Action openUrlInExternalBrowser,
IViewService viewService)
{
AppFlavorName = !string.IsNullOrEmpty(appFlavorName)
? appFlavorName
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: throw new ArgumentException("Can not instantiate contact page view model- object. No app name centered.");
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TinkApp = tinkApp
?? throw new ArgumentException("Can not instantiate settings page view model- object. No tink app object available.");
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CreateAttachment = createAttachment
?? throw new ArgumentException("Can not instantiate contact page view model- object. No create attachment provider available.");
ViewService = viewService
?? throw new ArgumentException("Can not instantiate contact page view model- object. No user view service available.");
OpenUrlInExternalBrowser = openUrlInExternalBrowser
?? throw new ArgumentException("Can not instantiate contact page view model- object. No user external browse service available.");
}
/// <summary> Is invoked when page is shown. </summary>
public async Task OnAppearing(
IStation selectedStation)
{
if (SelectedStation?.Id == selectedStation?.Id)
{
// Nothing to do because either both are null or of same id.
return;
}
SelectedStation = selectedStation;
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PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(SelectedStationId)));
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(SelectedStationName)));
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PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(MailAddressText)));
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(OfficeHoursText)));
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(PhoneNumberText)));
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(ProviderNameText)));
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(IsOperatorInfoAvaliable)));
await Task.CompletedTask;
}
/// <summary> Command object to bind mail button to view model. </summary>
public ICommand OnMailToOperatorRequest
=> new Command(
async () => await DoSendMailToOperator(),
() => IsSendMailAvailable);
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/// <summary> Command object to bind mail app related button to model. </summary>
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public ICommand OnMailAppRelatedRequest
=> new Command(
async () => await DoSendMailAppRelated(),
() => IsSendMailAvailable);
/// <summary>True if sending mail is possible.</summary>
public bool IsSendMailAvailable =>
CrossMessaging.Current.EmailMessenger.CanSendEmail;
/// <summary>cTrue if doing a phone call is possible.</summary>
public bool IsDoPhoncallAvailable
=> CrossMessaging.Current.PhoneDialer.CanMakePhoneCall;
/// <summary>Holds the mail address to mail to.</summary>
public string MailAddressText
=> SelectedStation?.OperatorData?.MailAddressText ?? string.Empty;
/// <summary>Holds the mail address to send mail to.</summary>
public string PhoneNumberText
=> SelectedStation?.OperatorData?.PhoneNumberText ?? string.Empty;
/// <summary>Holds the mail address to send mail to.</summary>
public string OfficeHoursText
=> SelectedStation?.OperatorData?.Hours ?? string.Empty;
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/// <summary> Gets whether any operator support info is available. </summary>
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public bool IsOperatorInfoAvaliable
=> MailAddressText.Length > 0 || PhoneNumberText.Length > 0;
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/// <returns> Returns true if either mail was sent or if no mailer available.</returns>
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public async Task DoSendMailToOperator()
{
try
{
if (!IsSendMailAvailable)
{
// Nothing to do because email can not be sent.
return;
}
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// Send operator related support mail to operator.
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await Email.ComposeAsync(new EmailMessage
{
To = new List<string> { MailAddressText },
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Cc = APPSUPPORTMAILADDRESS.ToUpper() != MailAddressText.ToUpper() // do not sent copy if same mail address
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&& MailAddressText != "konrad@sharee.bike" // do not sent copy if Mein konrad
? new List<string> { APPSUPPORTMAILADDRESS } : new List<string>(),
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Subject = string.Format(AppResources.SupportmailSubjectOperatormail, AppFlavorName, SelectedStation?.Id),
Body = TinkApp.ActiveUser.Mail != null ? $"{AppResources.SupportmailBodyText}\r\n\r\n\r\n\r\n{string.Format(AppResources.MarkingLoggedInStateInfoLoggedIn, TinkApp.ActiveUser.Mail)}" : $"{AppResources.SupportmailBodyText}\r\n\r\n\r\n\r\n{string.Format(AppResources.SupportmailBodyNotLoggedIn)}"
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});
return;
}
catch (Exception exception)
{
Log.Error("An unexpected error occurred sending mail to operator. {@Exception}", exception);
await ViewService.DisplayAdvancedAlert(
AppResources.MessageWaring,
AppResources.ErrorSupportmailMailingFailed,
exception.Message,
AppResources.MessageAnswerOk);
return;
}
}
/// <summary> Request to send a app related mail. </summary>
public async Task DoSendMailAppRelated()
{
try
{
// Ask for permission to append diagnostics.
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await ViewService.DisplayAlert(
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AppResources.QuestionSupportmailAttachmentTitle,
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AppResources.QuestionSupportmailAttachment,
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AppResources.MessageAnswerOk);
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var message = new EmailMessage
{
To = new List<string> { APPSUPPORTMAILADDRESS },
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Subject = SelectedStation?.Id != null ? string.Format(AppResources.SupportmailSubjectAppmailWithStation, AppFlavorName, SelectedStation?.Id) : string.Format(AppResources.SupportmailSubjectAppmail, AppFlavorName),
Body = TinkApp.ActiveUser.Mail != null ? $"{AppResources.SupportmailBodyText}\r\n\r\n\r\n\r\n{string.Format(AppResources.MarkingLoggedInStateInfoLoggedIn, TinkApp.ActiveUser.Mail)}" : $"{AppResources.SupportmailBodyText}\r\n\r\n\r\n\r\n{string.Format(AppResources.SupportmailBodyNotLoggedIn)}"
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};
// Send with attachment.
var logFileName = string.Empty;
try
{
logFileName = CreateAttachment();
}
catch (Exception exception)
{
await ViewService.DisplayAdvancedAlert(
AppResources.MessageWaring,
AppResources.ErrorSupportmailCreateAttachment,
exception.Message,
AppResources.MessageAnswerOk);
Log.ForContext<ContactPageViewModel>().Error("An error occurred creating attachment for app mail. {@Exception)", exception);
}
if (!string.IsNullOrEmpty(logFileName))
{
message.Attachments.Add(new Xamarin.Essentials.EmailAttachment(logFileName));
}
// Send a tink app related mail
await Email.ComposeAsync(message);
}
catch (Exception exception)
{
Log.ForContext<ContactPageViewModel>().Error("An unexpected error occurred sending mail. {@Exception}", exception);
await ViewService.DisplayAdvancedAlert(
AppResources.MessageWaring,
AppResources.ErrorSupportmailMailingFailed,
exception.Message,
AppResources.MessageAnswerOk);
return;
}
}
/// <summary> Command object to bind login button to view model. </summary>
public ICommand OnSelectStationRequest
#if USEFLYOUT
=> new Xamarin.Forms.Command(() => OpenSelectStationPage());
#else
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=> new Xamarin.Forms.Command(async () => await OpenSelectStationPageAsync());
#endif
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/// <summary> Opens login page. </summary>
#if USEFLYOUT
public void OpenSelectStationPage()
#else
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public async Task OpenSelectStationPageAsync()
#endif
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{
try
{
// Switch to map page
#if USEFLYOUT
ViewService.PushAsync(ViewTypes.SelectStationPage);
#else
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await ViewService.PushAsync(ViewTypes.SelectStationPage);
#endif
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}
catch (Exception p_oException)
{
Log.Error("Ein unerwarteter Fehler ist in der Klasse ContactPageViewModel aufgetreten. Kontext: Klick auf Hinweistext auf Station N- seite ohne Anmeldung. {@Exception}", p_oException);
return;
}
}
/// <summary> Command object to bind phone call button. </summary>
public ICommand OnPhoneRequest
=> new Command(
async () => await DoPhoneCall(),
() => IsDoPhoncallAvailable);
/// <summary> Request to do a phone call. </summary>
public async Task DoPhoneCall()
{
try
{
// Make Phone Call
if (IsDoPhoncallAvailable)
{
CrossMessaging.Current.PhoneDialer.MakePhoneCall(PhoneNumberText);
}
}
catch (Exception exception)
{
Log.Error("An unexpected error occurred doing a phone call. {@Exception}", exception);
await ViewService.DisplayAdvancedAlert(
AppResources.MessageWaring,
AppResources.ErrorSupportmailPhoningFailed,
exception.Message,
AppResources.MessageAnswerOk);
return;
}
}
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/// <summary> Text providing the id of the selected station.</summary>
public string SelectedStationId
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=> SelectedStation?.Id != null ? SelectedStation?.Id : string.Empty;
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public string SelectedStationName
=> SelectedStation?.StationName;
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/// <summary> Text providing the name of the operator of the selected station </summary>
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public string ProviderNameText
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=> SelectedStation?.OperatorData?.Name;
/// <summary> Text providing mail address and possible reasons to contact. </summary>
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public FormattedString MailAddressAndMotivationsText
{
get
{
var hint = new FormattedString();
hint.Spans.Add(new Span { Text = AppResources.MessageContactMail });
return hint;
}
}
/// <summary> Invitation to rate app.</summary>
public FormattedString PhoneContactText
{
get
{
var l_oHint = new FormattedString();
l_oHint.Spans.Add(new Span
{
Text = string.Format(AppResources.MessagePhoneMail, AppFlavorName) + $"{(OfficeHoursText.Length > 0 ? $" {OfficeHoursText}" : string.Empty)}"
});
return l_oHint;
}
}
}
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}