/// <summary>
/// Executes the provided command.
/// </summary>
/// <param name="command"> Command to be executed. </param>
/// <returns> Delegates refering to the respective command, null when invalid. </returns>
public string ExecuteCommand(Command command)
{
try
{
if (this.AppsHashed)
{
switch (command.CommandString)
{
case "\n":
Console.Write("null");
return(null);
break;
case "exit":
this.Terminate();
break;
default:
try
{
aAppFunction appFunction = null;
if ((appFunction = this.GetAppFunction(command)) != null)
{
return(appFunction(new ApplicationArgument()));
}
throw new CommandNotFoundException(command);
}
catch (CommandNotFoundException e)
{
Console.WriteLine($"\nError: \"{command.CommandString}\" is not a valid command.");
return(null);
}
break;
}
}
}
catch (UnhashedApplicationsException e)
{
e.Log();
}
return(null);
}
/// <summary>
/// Returns the sAppFunction delegate hashed to the provied command.
/// </summary>
/// <param name="command"> Command </param>
/// <returns> Hashed sAppFunction delegate. </returns>
public aAppFunction GetAppFunction(Command command) // Returns the application function delegate
{
aAppFunction appFunction = null;
try
{
if ((appFunction = this.GetHashedAppFuction(command.CommandString)) == null)
{
throw new UnhashedApplicationsException();
}
Console.WriteLine($"Function Call {appFunction(new ApplicationArgument())}");
return(appFunction);
}
catch (UnhashedApplicationsException e)
{
e.Log();
}
return(appFunction);
}
/// <summary>
/// Returns the app function hashed to the provided command.
/// </summary>
/// <param name="command"></param>
/// <returns></returns>
private aAppFunction GetHashedAppFuction(string command)
{
aAppFunction appFunction = null;
if (command == null)
{
return(new aAppFunction((ApplicationArgument argument) => null));
}
try
{
if (this.AppsHashed)
{
try
{
appFunction = (aAppFunction)this.ApplicationHash[command];
}
catch (KeyNotFoundException e)
{
Error.Log(e);
return(appFunction);
}
}
else
{
throw new UnhashedApplicationsException();
}
}
catch (UnhashedApplicationsException e)
{
e.Log();
}
return(appFunction);
}
public Application(AppConfiguration configuration, aAppFunction appFunction)
{
this.Configuration = configuration;
this.ApplicationFunction = appFunction;
}
public Application()
{
this.Configuration = new AppConfiguration();
this.ApplicationFunction = new aAppFunction((ApplicationArgument x) => null);
}
