package us.deans.pigs.client;

import us.deans.pigs.api.Wolf;
import us.deans.pigs.api.Pig;
import us.deans.pigs.api.AnimalFactory;

import org.apache.log4j.Logger;

public class Chapters {

	AnimalFactory aFactory1 = null;
	private Logger logger = Logger.getLogger(Chapters.class); 
	
	// AminalFactory - constructor injection (one instance of this class will always be needed). 
	public Chapters(AnimalFactory aFactory) {
		
		
		this.aFactory1 = aFactory;
		
	}

	// meet the wolf -- factory
	public void chapter_01(){

		logger.info("\n\nChapter 1 : Once upon a time, there was this wolf...\n");
		
		try {
			Wolf wolf = (Wolf) aFactory1.getMe("a wolf");
		}
		catch(Exception ex){
			logger.info("Here..." + ex.getMessage());
			logger.info("And this too..." + ex.getStackTrace());
		}

		logger.info("A hungry wolf... a baaad wolf...");

	}
	
	// the house of straw -- factory  
	public void chapter_02() {
		
		// welcome
		logger.info("\n\nChapter 2 : Meanwhile, the first pig builds a house...\n");

		// see the pig -- using factory that was itself injected through the client.
		try{
			Pig pig = (Pig) aFactory1.getMe("a pig");
			pig.gather("straw");
			pig.buildHouse();
		}
		catch (Exception ex) {
			logger.info("Here..." + ex.getMessage());
			logger.info("And this too..." + ex.getStackTrace());
		}
		
		logger.info("Oh, oh... here comes the wolf!");
		logger.info("The pig runs like hell toward the woods, where his brother lives");
		
	}

	// the house of sticks -- constructor injection
	public void chapter_03() {
		
		logger.info("\n\nChapter 3 : ...Just so happens the second pig was also building a house...\n");
		
		// see the pig
		try{
			Pig pig = (Pig) aFactory1.getMe("a pig");
			pig.gather("sticks");
			pig.buildHouse();
		}
		catch (Exception ex) {
			logger.info("Here..." + ex.getMessage());
			logger.info("And this too..." + ex.getStackTrace());
		}
		
		logger.info("The first pig shows up and is glad to see his brother's house.");
		
		logger.info("Hide inside... here comes the wolf!");

		
	}

	// the house of bricks -- using reflection
	public void chapter_04() {
		
		logger.info("\n\nChapter 4 : The third pig builds a house too...\n");

		// see the pig
		try{
			Object aFactory = Class.forName("us.deans.pigs.api.AnimalFactory").newInstance();
			Pig pig = (Pig) ((AnimalFactory) aFactory).getMe("a pig");
			pig.gather("bricks");
			pig.buildHouse();
		}
		catch (Exception ex) {
			logger.info("Here..." + ex.getMessage());
			logger.info("And this too..." + ex.getStackTrace());
		}
		
		logger.info("Oh, oh... here comes the wolf!");
		
		
	}
	

	
}