using System;
using System.Threading.Tasks;
using Serilog;
using ShareeBike.Repository.Exception;
using ShareeBike.Model.Connector;
using ShareeBike.Model.Bikes.BikeInfoNS.BluetoothLock;
namespace ShareeBike.Model.Bikes.BikeInfoNS.BikeNS.Command
{
public static class StartRentalCommand
{
///
/// Possible steps of requesting a bike.
///
public enum Step
{
RentBike,
}
///
/// Possible steps of requesting a bike.
///
public enum State
{
WebConnectFailed,
GeneralStartRentalError,
}
///
/// Interface to notify view model about steps/ state changes of closing process.
///
public interface IStartRentalCommandListener
{
///
/// Reports current step.
///
/// Current step to report.
void ReportStep(Step currentStep);
///
/// Reports current state.
///
/// Current state to report.
/// Message describing the current state.
///
Task ReportStateAsync(State currentState, string message);
}
///
/// Get current location.
///
///
///
///
public static async Task InvokeAsync(
IBikeInfoMutable bike,
Func isConnectedDelegate,
Func connectorFactory,
IStartRentalCommandListener listener)
{
// Invokes member to notify about step being started.
void InvokeCurrentStep(Step step)
{
if (listener == null)
return;
try
{
listener.ReportStep(step);
}
catch (Exception exception)
{
Log.ForContext().Error("An exception {@exception} was thrown invoking step-action for step {step} ", exception, step);
}
}
// Invokes member to notify about state change.
async Task InvokeCurrentStateAsync(State state, string message)
{
if (listener == null)
return;
try
{
await listener.ReportStateAsync(state, message);
}
catch (Exception exception)
{
Log.ForContext().Error("An exception {@exception} was thrown invoking state-action for state {state} ", exception, state);
}
}
//// Start Action
//// Step: Book bike
InvokeCurrentStep(Step.RentBike);
try
{
if (bike.LockInfo.State != LockingState.Open)
{
await connectorFactory(true).Command.DoBookAsync(bike, LockingAction.Open);
}
else
{
await connectorFactory(true).Command.DoBookAsync(bike);
}
Log.ForContext().Information("User booked bike {bikeId} successfully.", bike.Id);
}
catch (Exception exception)
{
Log.ForContext().Information("Booking of bike {bikeId} failed.", bike.Id);
if (exception is WebConnectFailureException)
{
// Copri server is not reachable.
Log.ForContext().Error("Copri server not reachable.");
await InvokeCurrentStateAsync(State.WebConnectFailed, exception.Message);
}
else
{
Log.ForContext().Error("{@exception}", exception);
await InvokeCurrentStateAsync(State.GeneralStartRentalError, exception.Message);
}
throw;
}
}
}
}