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package com.github.arachnidium.model.support.annotations;

import java.lang.annotation.Annotation;
import java.util.ArrayList;
import java.util.List;

import org.openqa.selenium.By;
import org.openqa.selenium.support.ByIdOrName;
import org.openqa.selenium.support.How;
import com.github.arachnidium.util.reflect.annotations.AnnotationUtil;

/**
 * Reads annotations which mark classes.
 * It is the inner utility class.
 */
public final class ClassDeclarationReader {

	private static final String REG_EXP_METHOD = "regExp";
	private static final String INDEX_METHOD = "index";
	private static final String TIME_OUT = "timeOut";
	// @Frame
	private static final String STRING_PATH_METHOD = "stringPath";
	private static final String FRAME_INDEX_METHOD = "frameIndex";
	private static final String HOW_TO_GET_FRAME_ELEMENT = "howToGet";
	private static final String HOW_TO_GET_LOCATOR_VALUE = "locator";
	
	private ClassDeclarationReader(){
		super();
	}

	/**
	 * Returns "regExp()" value
	 * @param a An instance of Annotation which has "regExp()" method 
	 */
	private static String getRegExpression(Annotation a){
		return AnnotationUtil.getValue(a, REG_EXP_METHOD);
	}
	
	/**
	 * Returns "index()" value
	 * @param a An instance of Annotation which has "index()" method 
	 */	
	public static Integer getIndex(Annotation a){
		return AnnotationUtil.getValue(a, INDEX_METHOD);
	}	
	
	/**
	 * Returns "regExp()" value
	 * @param a An instance of Annotation{@A1}. A1 has "regExp()" method 
	 */		
	public static List getRegExpressions(Annotation[] a){
		List result = new ArrayList();
		for (Annotation annotation: a){
			result.add(getRegExpression(annotation));
		}		
		return result;		
 	}
	
	private static By getBy(How how, String value){
		switch (how) {
		case CLASS_NAME:
			return By.className(value);
		case CSS:
			return By.cssSelector(value);
		case ID:
			return By.id(value);
		case LINK_TEXT:
			return By.linkText(value);	
		case NAME:
			return By.name(value);		
		case PARTIAL_LINK_TEXT:
			return By.partialLinkText(value);	
		case TAG_NAME:
			return By.tagName(value);	
		case XPATH:
			return By.xpath(value);				
		default:
			return new ByIdOrName(value);
		}
	}
	
	/**
	 * Reads {@link Frames} annotation
	 */
	public static List