package org.alfresco.web.bean.wizard;

import java.util.List;

import org.alfresco.web.app.AlfrescoNavigationHandler;
import org.alfresco.web.config.WizardsConfigElement.PageConfig;
import org.alfresco.web.config.WizardsConfigElement.StepConfig;
import org.alfresco.web.config.WizardsConfigElement.WizardConfig;

/**
 * Object responsible for holding the current state of an active wizard.
 * 
 * @author gavinc
 */
public final class WizardState
{
   private int currentStep = 1;
   private PageConfig currentPageCfg;
   private WizardConfig config;
   private IWizardBean wizard;
   private List<StepConfig> steps;
   
   /**
    * Default constructor
    * 
    * @param config The configuration for the wizard
    * @param wizard The wizard bean instance
    */
   public WizardState(WizardConfig config, IWizardBean wizard)
   {
      this.config = config;
      this.wizard = wizard;
      
      this.steps = this.config.getStepsAsList();
   }

   /**
    * Sets the configuration for the current page of the wizard
    * 
    * @param currentPageCfg The configuration
    */
   public void setCurrentPageCfg(PageConfig currentPageCfg)
   {
      this.currentPageCfg = currentPageCfg;
   }
   
   /**
    * Sets the current step the wizard is on
    * 
    * @param currentStep The current step number
    */
   public void setCurrentStep(int currentStep)
   {
      this.currentStep = currentStep;
   }
   
   /**
    * Returns the wizard bean instance
    * 
    * @return The wizard bean instance
    */
   public IWizardBean getWizard()
   {
      return this.wizard;
   }

   /**
    * Returns the configuration for the current wizard
    * 
    * @return The wizard configuration
    */
   public WizardConfig getConfig()
   {
      return this.config;
   }
   
   /**
    * Returns the configuration for the current page of the wizard
    * 
    * @return The current page configuration
    */
   public PageConfig getCurrentPageCfg()
   {
      return currentPageCfg;
   }

   /**
    * The current step the wizard is on
    * 
    * @return The current wizard step
    */
   public int getCurrentStep()
   {
      return currentStep;
   }

   /**
    * Returns the list of steps the wizard has
    * 
    * @return List of wizard steps
    */
   public List<StepConfig> getSteps()
   {
      return steps;
   }
   
   @Override
   public String toString()
   {
      return AlfrescoNavigationHandler.WIZARD_PREFIX + this.config.getName() + 
            "[" + this.currentStep + "]";
   }
}