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package org.nakedobjects.example.expenses.claims;

import java.util.List;

import org.nakedobjects.applib.AbstractService;
import org.nakedobjects.applib.ApplicationException;
import org.nakedobjects.applib.annotation.MemberOrder;
import org.nakedobjects.applib.annotation.Named;
import org.nakedobjects.applib.annotation.Optional;
import org.nakedobjects.example.expenses.employee.Employee;
import org.nakedobjects.example.expenses.services.UserFinder;


/**
 * Claims acts as a facade onto the ClaimRepository and ClaimFactory.  It wraps the methods that are intended to be
 * invoked directly by a user, adding:
 * -  mark-up (e.g. naming the parameters)
 * -  helper logic e.g. default.. or choices.. methods
 * - user-friendly wrapping for error conditions.
 */
public class Claims extends AbstractService {
	
    
	   // {{ Title & ID
    public String getId() {
    	return getClass().getSimpleName();
    }


    public String iconName() {
        return Claim.class.getSimpleName();
    }

	// }}
	
    // {{ Injected Services
    /*
     * This region contains references to the services (Repositories, 
     * Factories or other Services) used by this domain object.  The 
     * references are injected by the application container.
     */

	// {{ Injected: UserFinder
    private UserFinder userFinder;
    /**
     * This field is not persisted, nor displayed to the user.
     */
    protected UserFinder getUserFinder() {
        return this.userFinder;
    }
    /**
     * Injected by the application container.
     */
    public void setUserFinder(UserFinder userFinder) {
        this.userFinder = userFinder;
    }
	// }}
	
	// {{ Injected: ClaimRepository
    private ClaimRepository claimRepository;
    /**
     * This field is not persisted, nor displayed to the user.
     */
    protected ClaimRepository getClaimRepository() {
        return this.claimRepository;
    }
    /**
     * Injected by the application container.
     */
    public void setClaimRepository(ClaimRepository claimRepository) {
        this.claimRepository = claimRepository;
    }
	// }}
	
	// {{ Injected: ClaimFactory
    private ClaimFactory claimFactory;
    /**
     * This field is not persisted, nor displayed to the user.
     */
    protected ClaimFactory getClaimFactory() {
        return this.claimFactory;
    }
    /**
     * Injected by the application container.
     */
    public void setClaimFactory(ClaimFactory claimFactory) {
        this.claimFactory = claimFactory;
    }
	// }}
	
    // }}
	
	@MemberOrder(sequence = "2")
	public List findMyClaims(@Named("Status")
	 @Optional final ClaimStatus status,
			@Optional
			@Named("Description") final String description) {
        return claimRepository.findClaims(meAsEmployee(), status, description);
    }
	
    @MemberOrder(sequence = "1")
	public List myRecentClaims() {
        return claimRepository.findRecentClaims(meAsEmployee());
    }
    
    private Employee meAsEmployee() {
    	Object user = userFinder.currentUserAsObject();
    	if (user instanceof Employee) {
    		return (Employee) user;
    	}
    	throw new ApplicationException("Current user is not an Employee");
    }
    
    @MemberOrder(sequence="3")
	public Claim createNewClaim(@Named("Description") String description) {
    	return claimFactory.createNewClaim(meAsEmployee(), description);
    }
    
    public Object[] defaultCreateNewClaim() {
    	return new Object[] {claimFactory.defaultUniqueClaimDescription(meAsEmployee())};
    }
   
    @MemberOrder(sequence="6")
	public List claimsAwaitingMyApproval() {
    	return claimRepository.findClaimsAwaitingApprovalBy(meAsEmployee());
    }

}