package foundation.org;

import foundation.dao.Filter;
import foundation.data.entity.Entity;
import foundation.data.entity.EntitySet;
import foundation.data.object.DataObject;
import foundation.json.IJSONProvider;
import foundation.json.IJSONWriter;
import foundation.util.MapList;
import foundation.util.Util;

public class Employees extends MapList<String, Employee> implements IJSONProvider{
	private Employee currentEmployee;
	private MapList<String, Position> positions; 

	public Employees() {
		positions = new MapList<String, Position>();
	}

	public static Employees getInstance(String userId) throws Exception {
		Employees employees = new Employees();
		DataObject dataObject = DataObject.getInstance("sys_user_employee");
		EntitySet employeeSet = dataObject.getTableEntitySet(new Filter("user_id", userId));
		
		for (Entity entity: employeeSet) {
			Employee employee = Employee.getInstance(entity.getString("employee_id"));

			// 加载员工关联的岗位
			if (employee != null) {
				MapList<String, Position> employeePositions = employee.getPositions();
				for (Position position : employeePositions) {
					employees.loadOnePosition(position.getId(), position);
				}
			}
			
			employees.add(employee.getId(), employee);
		}
		
		if(employees.size() > 0 ) {
			employees.setCurrentEmployee(employees.get(0));
		}
		
		return employees;
	}
	
	private void loadOnePosition(String positionId, Position position) {
		positions.add(positionId, position);
	}

	public String getId() {
		return currentEmployee.getId();
	}
	
	public String getName(String employeeId) {
		if (Util.isEmpty(employeeId)) {
			currentEmployee.getName();
		}
		Employee employee = this.get("employeeId");
		return employee.getName();
	}

	public Employee getEmployeeByPositionId(String positionId) {
		for(Employee employee : this) {
			MapList<String, Position> positions = employee.getPositions();
			
			if (positions != null && positions.contains(positionId)) {
				return employee;
			}
		}
		return null;
	}
	
	public void setCurrentEmployee(Employee currentEmployee) {
		this.currentEmployee = currentEmployee;
	}

	public MapList<String, Position> getPositions() {
		return positions;
	}

	public void writeJSON(IJSONWriter writer) {
		writer.beginArray("employees");
		
		for(Employee employee : this) {
			writer.beginObject();
			employee.writeJSONBody(writer);
			writer.endObject();
		}
		
		writer.endArray();
	}


}