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using Gorilla.Commons.Infrastructure.FileSystem;
using Gorilla.Commons.Infrastructure.Logging;
using Gorilla.Commons.Utility.Core;
using Gorilla.Commons.Utility.Extensions;
using MoMoney.Presentation.Model.messages;
using MoMoney.Service.Contracts.Infrastructure;
using MoMoney.Service.Infrastructure.Eventing;
using MoMoney.Service.Infrastructure.Transactions;
namespace MoMoney.Presentation.Model.Projects
{
public class ProjectController : IProjectController, ICallback<IUnitOfWork>
{
readonly IEventAggregator broker;
readonly IProjectTasks configuration;
IProject project;
bool unsaved_changes = false;
public ProjectController(IEventAggregator broker, IProjectTasks configuration)
{
this.broker = broker;
this.configuration = configuration;
broker.subscribe(this);
project = new EmptyProject();
}
public string name()
{
return project.name();
}
public void start_new_project()
{
close_project();
project = new Project(null);
broker.publish(new NewProjectOpened(name()));
}
public void open_project_from(IFile file)
{
if (!file.does_the_file_exist()) return;
close_project();
configuration.open(file);
project = new Project(file);
broker.publish(new NewProjectOpened(name()));
}
public void save_changes()
{
ensure_that_a_path_to_save_to_has_been_specified();
configuration.copy_to(project.name());
unsaved_changes = false;
broker.publish<SavedChangesEvent>();
}
public void save_project_to(IFile new_file)
{
if (new_file.path.is_blank()) return;
project = new Project(new_file);
save_changes();
}
public void close_project()
{
if (!project.is_open()) return;
configuration.close(project.name());
project = new EmptyProject();
broker.publish<ClosingProjectEvent>();
}
public bool has_been_saved_at_least_once()
{
return project.is_file_specified();
}
public bool has_unsaved_changes()
{
return unsaved_changes;
}
public bool is_open()
{
return project.is_open();
}
void ensure_that_a_path_to_save_to_has_been_specified()
{
if (!has_been_saved_at_least_once()) throw new FileNotSpecifiedException();
}
public void run(IUnitOfWork item)
{
unsaved_changes = item.is_dirty();
if (unsaved_changes)
{
this.log().debug("unsaved changes: {0}", unsaved_changes);
broker.publish<UnsavedChangesEvent>();
}
}
}
}
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