/*
 * RequireDocumentIssueValidator.java
 *
 * Created on May 14, 2007, 1:04 PM
 *
 * To change this template, choose Tools | Template Manager
 * and open the template in the editor.
 */

package org.nwoca.ssdt.jira;

import com.atlassian.jira.ComponentManager;
import com.atlassian.jira.ManagerFactory;
import com.atlassian.jira.issue.Issue;
import com.atlassian.jira.issue.MutableIssue;
import com.atlassian.jira.issue.fields.CustomField;
import com.atlassian.jira.issue.link.IssueLink;
import com.atlassian.jira.issue.link.IssueLinkManager;
import com.atlassian.jira.workflow.WorkflowActionsBean;
import com.opensymphony.module.propertyset.PropertySet;
import com.opensymphony.workflow.InvalidInputException;
import com.opensymphony.workflow.Validator;
import com.opensymphony.workflow.WorkflowException;
import java.util.Collection;
import java.util.List;
import java.util.Map;

/**
 * Validator requires to an issue type of "Document" or a sub-task of type "Document".
 *
 * These are custom issue types used by the SSDT.
 *
 * @author SMITH
 */
public class RequireDocumentIssueValidator implements Validator {
    
    
    /**
     * Creates a new instance of RequireDocumentIssueValidator
     */
    public RequireDocumentIssueValidator() {
    }
    
    public void validate(Map transientVars, Map args, PropertySet ps)
    throws InvalidInputException, WorkflowException {
        
        Issue issue = (Issue) transientVars.get("issue");
        CustomField docRequiredField =  ManagerFactory.getCustomFieldManager()
        .getCustomFieldObjectByName("Documentation Required");
        
        if (docRequiredField == null) {
            return;
        }
        
        String docRequired = (String)issue.getCustomFieldValue(docRequiredField);
        
        if (docRequired == null || docRequired.startsWith("No")) {
            return;
        }
        
        if (docRequired.startsWith("Yes")) {
            
            Collection subtasks = issue.getSubTaskObjects();
            for (Object o : subtasks) {
                MutableIssue subt = (MutableIssue)o;
                if (subt.getIssueTypeObject().getName().equals("Document Subtask")) {
                    return;
                }
            }
            
            IssueLinkManager lm = ComponentManager.getInstance().getIssueLinkManager();
            List links = lm.getOutwardLinks(issue.getId());
            for (Object o : links) {
                IssueLink link = (IssueLink)o;
                if (link.getIssueLinkType().getName().equals("Documention") ) {
                    return;
                }
            }
            
            throw new InvalidInputException("Issue requiring documentation must have "
                    + "at least one 'Document' Subtask or a 'Documention' link." );
            
        }
        
        return;
    }
    
}