sharee.bike-App/TINKLib/ViewModel/FindBike/FindBikePageViewModel.cs

276 lines
11 KiB
C#
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using Serilog;
using System;
using System.Collections.Specialized;
using System.ComponentModel;
using System.Threading;
using System.Threading.Tasks;
using TINK.Model.Bike;
using TINK.Model.Connector;
using TINK.Model.User;
using TINK.View;
using TINK.Settings;
using TINK.Model.Bike.BluetoothLock;
using System.Collections.Generic;
using TINK.Services.BluetoothLock;
using TINK.Model.Services.Geolocation;
using System.Linq;
using TINK.Model;
using Xamarin.Forms;
using TINK.ViewModel.Bikes;
using TINK.Services.BluetoothLock.Tdo;
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using TINK.Services.Permissions;
using Plugin.BLE.Abstractions.Contracts;
using TINK.MultilingualResources;
using TINK.Model.Device;
namespace TINK.ViewModel.FindBike
{
public class FindBikePageViewModel : BikesViewModel, INotifyCollectionChanged, INotifyPropertyChanged
{
private string bikeIdUserInput = string.Empty;
/// <summary> Text entered by user to specify a bike.</summary>
public string BikeIdUserInput
{
get => bikeIdUserInput;
set
{
if (value == bikeIdUserInput)
{
return;
}
bikeIdUserInput = value;
base.OnPropertyChanged(new PropertyChangedEventArgs(nameof(IsSelectBikeEnabled)));
}
}
/// <summary> Holds all bikes available.</summary>
public BikeCollection Bikes { get; set; }
/// <summary> Do not allow to select bike if id is not set.</summary>
public bool IsSelectBikeEnabled => BikeIdUserInput != null && BikeIdUserInput.Length > 0;
/// <summary> Hide id input fields as soon as bike is found.</summary>
public bool IsSelectBikeVisible => BikeCollection != null && BikeCollection.Count == 0;
/// <summary>
/// Constructs bike collection view model in case information about occupied bikes is available.
/// </summary>
/// <param name="p_oUser">Mail address of active user.</param>
/// <param name="isReportLevelVerbose">True if report level is verbose, false if not.</param>
/// <param name="permissions">Holds object to query location permisions.</param>
/// <param name="bluetoothLE">Holds object to query bluetooth state.</param>
/// <param name="runtimPlatform">Specifies on which platform code is run.</param>
/// <param name="isConnectedDelegate">Returns if mobile is connected to web or not.</param>
/// <param name="connectorFactory">Connects system to copri.</param>
/// <param name="lockService">Service to control lock retrieve info.</param>
/// <param name="polling"> Holds whether to poll or not and the periode leght is polling is on. </param>
/// <param name="postAction">Executes actions on GUI thread.</param>
/// <param name="smartDevice">Provides info about the smart device (phone, tablet, ...).</param>
/// <param name="viewService">Interface to actuate methodes on GUI.</param>
public FindBikePageViewModel(
User p_oUser,
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ILocationPermission permissions,
IBluetoothLE bluetoothLE,
string runtimPlatform,
Func<bool> isConnectedDelegate,
Func<bool, IConnector> connectorFactory,
IGeolocation geolocation,
ILocksService lockService,
PollingParameters polling,
Action<SendOrPostCallback, object> postAction,
ISmartDevice smartDevice,
IViewService viewService) : base(p_oUser, permissions, bluetoothLE, runtimPlatform, isConnectedDelegate, connectorFactory, geolocation, lockService, polling, postAction, smartDevice, viewService, () => new MyBikeInUseStateInfoProvider())
{
CollectionChanged += (sender, eventargs) =>
{
OnPropertyChanged(new PropertyChangedEventArgs(nameof(IsSelectBikeVisible)));
};
}
/// <summary>
/// Invoked when page is shown.
/// Starts update process.
/// </summary>
public async Task OnAppearing()
{
Log.ForContext<FindBikePageViewModel>().Information("User request to show page FindBike- page re-appearing");
ActionText = AppResources.ActivityTextFindBikeLoadingBikes;
var bikes = await ConnectorFactory(IsConnected).Query.GetBikesAsync();
Exception = bikes.Exception; // Update communication error from query for bikes occupied.
Bikes = bikes.Response;
ActionText = "";
IsIdle = true;
}
/// <summary> Command object to bind select bike button to view model. </summary>
public System.Windows.Input.ICommand OnSelectBikeRequest => new Xamarin.Forms.Command(async () => await SelectBike(), () => IsSelectBikeEnabled);
/// <summary> Select a bike by ID</summary>
public async Task SelectBike()
{
var selectedBike = Bikes.FirstOrDefault(x => x.Id.Equals(BikeIdUserInput.Trim(), StringComparison.OrdinalIgnoreCase));
if (selectedBike == null)
{
await ViewService.DisplayAlert("Fehler bei Radauswahl!", $"Kein Rad mit Id {BikeIdUserInput} gefunden.", "OK");
return;
}
var bikeCollection = new BikeCollection(new Dictionary<string, Model.Bike.BC.BikeInfo> { { selectedBike.Id, selectedBike } });
var lockIdList = bikeCollection
.GetLockIt()
.Cast<BikeInfo>()
.Select(x => x.LockInfo)
.ToList();
if (LockService is ILocksServiceFake serviceFake)
{
serviceFake.UpdateSimulation(bikeCollection);
}
// Check bluetooth and location permission and states
ActionText = AppResources.ActivityTextCheckBluetoothState;
if (bikeCollection.FirstOrDefault(x => x is BikeInfo btBike) != null
&& RuntimePlatform == Device.Android)
{
// Check location permission
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var status = await PermissionsService.CheckStatusAsync();
if (status != Status.Granted)
{
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var permissionResult = await PermissionsService.RequestAsync();
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if (permissionResult != Status.Granted)
{
var dialogResult = await ViewService.DisplayAlert(
AppResources.MessageTitleHint,
AppResources.MessageBikesManagementLocationPermissionOpenDialog,
AppResources.MessageAnswerYes,
AppResources.MessageAnswerNo);
if (!dialogResult)
{
// User decided not to give access to locations permissions.
BikeCollection.Update(bikeCollection);
//await OnAppearing(() => UpdateTask());
ActionText = "";
IsIdle = true;
return;
}
// Open permissions dialog.
PermissionsService.OpenAppSettings();
}
}
// Location state
if (Geolocation.IsGeolcationEnabled == false)
{
await ViewService.DisplayAlert(
AppResources.MessageTitleHint,
AppResources.MessageBikesManagementLocationActivation,
AppResources.MessageAnswerOk);
BikeCollection.Update(bikeCollection);
await OnAppearing(() => UpdateTask());
ActionText = "";
IsIdle = true;
return;
}
// Bluetooth state
if (await BluetoothService.GetBluetoothState() != BluetoothState.On)
{
await ViewService.DisplayAlert(
AppResources.MessageTitleHint,
AppResources.MessageBikesManagementBluetoothActivation,
AppResources.MessageAnswerOk);
BikeCollection.Update(bikeCollection);
await OnAppearing(() => UpdateTask());
ActionText = "";
IsIdle = true;
return;
}
}
// Connect to bluetooth devices.
ActionText = AppResources.ActivityTextSearchBikes;
IEnumerable<LockInfoTdo> locksInfoTdo;
try
{
locksInfoTdo = await LockService.GetLocksStateAsync(
lockIdList.Select(x => x.ToLockInfoTdo()).ToList(),
LockService.TimeOut.MultiConnect);
}
catch (Exception exception)
{
Log.ForContext<FindBikePageViewModel>().Error("Getting bluetooth state failed. {Exception}", exception);
locksInfoTdo = new List<LockInfoTdo>();
}
var locksInfo = lockIdList.UpdateById(locksInfoTdo);
BikeCollection.Update(bikeCollection.UpdateLockInfo(locksInfo));
await OnAppearing(() => UpdateTask());
ActionText = "";
IsIdle = true;
}
/// <summary> Create task which updates my bike view model.</summary>
private void UpdateTask()
{
// Start task which periodically updates pins.
PostAction(
unused =>
{
ActionText = AppResources.ActivityTextUpdating;
IsConnected = IsConnectedDelegate();
},
null);
var result = ConnectorFactory(IsConnected).Query.GetBikesAsync().Result;
var bikes = result.Response;
var exception = result.Exception;
if (exception != null)
{
Log.ForContext<FindBikePageViewModel>().Error("Getting bikes occupied in polling context failed with exception {Exception}.", exception);
}
var selectedBike = bikes.FirstOrDefault(x => x.Id.Equals(BikeIdUserInput.Trim(), StringComparison.OrdinalIgnoreCase));
bikes = selectedBike != null
? new BikeCollection(new Dictionary<string, Model.Bike.BC.BikeInfo> { { selectedBike.Id, selectedBike } })
: new BikeCollection();
PostAction(
unused =>
{
BikeCollection.Update(bikes); // Updating collection leads to update of GUI.
Exception = result.Exception;
ActionText = string.Empty;
},
null);
}
}
}