package com.jarch.showcase.view.multimedia;

import java.io.File;
import javax.faces.application.FacesMessage;
import javax.faces.bean.ManagedBean;
import javax.faces.context.ExternalContext;
import javax.faces.context.FacesContext;
import javax.imageio.stream.FileImageOutputStream;
import org.primefaces.model.CroppedImage;

@ManagedBean
public class CropperView {
    
    private CroppedImage croppedImage;
	
	private String newImageName;

	public CroppedImage getCroppedImage() {
		return croppedImage;
	}

	public void setCroppedImage(CroppedImage croppedImage) {
		this.croppedImage = croppedImage;
	}

	public void crop() {
		if(croppedImage == null) {
			return;
        }
		
		setNewImageName(getRandomImageName());
		ExternalContext externalContext = FacesContext.getCurrentInstance().getExternalContext();
		String newFileName = externalContext.getRealPath("") + File.separator + "resources" + File.separator + "demo" +
                    File.separator + "images" + File.separator + "crop" + File.separator + getNewImageName() + ".jpg";
		
		FileImageOutputStream imageOutput;
		try {
			imageOutput = new FileImageOutputStream(new File(newFileName));
			imageOutput.write(croppedImage.getBytes(), 0, croppedImage.getBytes().length);
			imageOutput.close();
		} catch (Exception e) {
			FacesContext.getCurrentInstance().addMessage(null, new FacesMessage(FacesMessage.SEVERITY_ERROR, "Error", "Cropping failed."));
			return;
		}
        
        FacesContext.getCurrentInstance().addMessage(null, new FacesMessage(FacesMessage.SEVERITY_INFO, "Success", "Cropping finished."));
	}
	
	private String getRandomImageName() {
		int i = (int) (Math.random() * 100000);
		
		return String.valueOf(i);
	}
	
	public String getNewImageName() {
		return newImageName;
	}

	public void setNewImageName(String newImageName) {
		this.newImageName = newImageName;
	}
}