package example.controller;

import java.io.Serializable;
import java.util.List;
import java.util.Map;

import org.icefaces.ace.event.SelectEvent;
import org.icefaces.ace.model.table.LazyDataModel;
import org.icefaces.ace.model.table.RowStateMap;
import org.icefaces.ace.model.table.SortCriteria;

import example.util.Student;

import javax.faces.bean.ManagedBean;
import javax.faces.bean.SessionScoped;

@ManagedBean(name="aceLazyBean")
@SessionScoped
public class AceLazyBean implements Serializable {

	private static final long serialVersionUID = 1L;
	
	private LazyDataModel<Student> studentList;
	private Student selectedStudent;
	private RowStateMap rowStateMap;

	public AceLazyBean() {
		studentList = new LazyDataModel<Student>() {

			List<Student> students = Student.generateList(0, 20); // the underlying data is not generated at every request

			// this method is called at every request
			@Override
			public List<Student> load(int first, int pageSize, SortCriteria[] sortCriteria, Map<String, String> filters) {
				List<Student> ret = new java.util.ArrayList(pageSize); // a partial list is prepared at every request
				for (int i = 0; i < pageSize; i++) {
					ret.add(students.get(first+i)); // the data is taken from the original source
				}
				return ret;
			}
		};

		studentList.setRowCount(20);
	}

	public void select(SelectEvent event) {
		selectedStudent = (Student) event.getObject();
	}
	
	public void selectFirst(){
		rowStateMap.setAllSelected(false);
		Student first = (Student) studentList.iterator().next();
		rowStateMap.get(first).setSelected(true);
		setSelectedStudent(first);
	}

	/* GETTERS AND SETTERS */
	public LazyDataModel<Student> getStudentList() {return studentList;}
	public void setStudentList(LazyDataModel<Student> studentList) {this.studentList = studentList;}
	public Student getSelectedStudent() {return selectedStudent;}
	public void setSelectedStudent(Student selectedStudent) {this.selectedStudent = selectedStudent;}
	public RowStateMap getRowStateMap() {return rowStateMap;}
	public void setRowStateMap(RowStateMap rowStateMap) {this.rowStateMap = rowStateMap;}
}