package org.simantics.district.network.ui.techtype.table;


import java.util.List;

import javax.annotation.PostConstruct;
import javax.annotation.PreDestroy;
import javax.inject.Inject;

import org.eclipse.e4.ui.model.application.MApplication;
import org.eclipse.e4.ui.model.application.commands.MCommand;
import org.eclipse.e4.ui.model.application.ui.basic.MPart;
import org.eclipse.e4.ui.model.application.ui.menu.MHandledToolItem;
import org.eclipse.e4.ui.model.application.ui.menu.MMenuFactory;
import org.eclipse.e4.ui.model.application.ui.menu.MToolBar;
import org.eclipse.e4.ui.model.application.ui.menu.MToolBarElement;
import org.eclipse.e4.ui.workbench.modeling.ESelectionService;
import org.eclipse.swt.widgets.Composite;
import org.simantics.Simantics;
import org.simantics.db.Resource;
import org.simantics.db.common.NamedResource;
import org.simantics.db.common.procedure.adapter.TransientCacheListener;
import org.simantics.db.exception.DatabaseException;
import org.simantics.db.layer0.request.PossibleActiveModel;
import org.simantics.district.network.DistrictNetworkUtil;
import org.simantics.district.network.techtype.requests.PossibleTechTypeTable;
import org.simantics.district.network.techtype.requests.PossibleTechTypeTableData;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class TechTypeTableView {

	private final static Logger LOGGER = LoggerFactory.getLogger(TechTypeTableView.class);

	public static final String ID = "org.simantics.district.network.ui.techtype.table.techtypeTableView";

	@Inject ESelectionService selectionService;

	public static TechTypeTable table;

	@Inject
	public void init(MPart part, MApplication app) {
		MToolBar toolBar = MMenuFactory.INSTANCE.createToolBar();
		toolBar.setToBeRendered(true);
		toolBar.getChildren().add(createImportCSVDataToolItem(app));
		toolBar.getChildren().add(createValidateTableToolItem(app));
		toolBar.getChildren().add(createResetComponentsItem(app));
		part.setToolbar(toolBar);
	}

	private MHandledToolItem createValidateTableToolItem(MApplication app) {
		MHandledToolItem createHandledToolItem = MMenuFactory.INSTANCE.createHandledToolItem();
		// Command is contributed via fragment
		MCommand command = app.getCommand("org.simantics.district.network.ui.command.validatetechtypetable");
		createHandledToolItem.setCommand(command); //$NON-NLS-1$
		createHandledToolItem.setLabel("Validate Tech Type Table");
		createHandledToolItem.setIconURI("platform:/plugin/com.famfamfam.silk/icons/accept.png"); //$NON-NLS-1$
		return createHandledToolItem;
	}

	private MHandledToolItem createImportCSVDataToolItem(MApplication app) {
		MHandledToolItem createHandledToolItem = MMenuFactory.INSTANCE.createHandledToolItem();
		// Command is contributed via fragment
		MCommand command = app.getCommand("org.simantics.district.network.ui.command.importtechtypecsv");
		createHandledToolItem.setCommand(command); //$NON-NLS-1$
		createHandledToolItem.setLabel("Import Tech Type");
		createHandledToolItem.setIconURI("platform:/plugin/com.famfamfam.silk/icons/table_edit.png"); //$NON-NLS-1$
		return createHandledToolItem;
	}

	private MToolBarElement createResetComponentsItem(MApplication app) {
		MHandledToolItem createHandledToolItem = MMenuFactory.INSTANCE.createHandledToolItem();
		// Command is contributed via fragment
		MCommand command = app.getCommand("org.simantics.district.network.ui.command.resetcomponentproperties");
		createHandledToolItem.setCommand(command); //$NON-NLS-1$
		createHandledToolItem.setLabel("Reset Component Properties");
		createHandledToolItem.setIconURI("platform:/plugin/com.famfamfam.silk/icons/database_go.png"); //$NON-NLS-1$
		return createHandledToolItem;
	}

	@PostConstruct
	public void postConstruct(Composite parent) {
		Resource pipe = null;
		try {
			List<NamedResource> componentTypes = DistrictNetworkUtil.getDistrictComponents();

			pipe = componentTypes.stream()
					.filter(r -> r.getName().toLowerCase().contains("pipe"))
					.map(r -> r.getResource())
					.findFirst().orElse(null);
		} catch (DatabaseException e) {
			LOGGER.error("Failed to read district component types for active model", e);
		}

		LOGGER.debug("Pipe component type is {}", pipe);

		String data = null;
		Resource tableResource = null;
		if (pipe != null) {
			try {
				Resource model = Simantics.getSession().syncRequest(new PossibleActiveModel(Simantics.getProjectResource()));
				if (model != null) {
					tableResource = Simantics.getSession().syncRequest(new PossibleTechTypeTable(model, pipe), TransientCacheListener.instance());
					data = Simantics.getSession().syncRequest(new PossibleTechTypeTableData(model, pipe), TransientCacheListener.instance());
				}
			} catch (DatabaseException e) {
				LOGGER.error("Failed to read tech type table data for {}", pipe, e);
			}
		}

		table = new TechTypeTable(parent, 0, pipe, tableResource, data);
	}

	@PreDestroy
	public void dispose() {
		table.dispose();
		table = null;
	}

}