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package org.ufcspa.simdecs.diagram.mb;

import java.util.Locale;
import javax.el.ExpressionFactory;
import javax.faces.application.FacesMessage;
import javax.faces.application.FacesMessage.Severity;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import org.ufcspa.simdecs.diagram.util.MessageResourceUtils;

/**
 *
 * @author Maroni
 */
public abstract class DefaultManagedBean {
    
    public Locale getLocale() {
        return getFacesContext().getViewRoot().getLocale();
    }
    
    public void addMessage(String componentID, Severity severity, String i18nTitle, String i18nMessage) {        
        FacesContext.getCurrentInstance().addMessage(componentID, new FacesMessage(severity, getResourceMessage(i18nTitle), getResourceMessage(i18nMessage)));
    }

    public void addInfoMessage(String componentID, String i18nTitle, String i18nMessage) {
        addMessage(componentID, FacesMessage.SEVERITY_INFO, i18nTitle, i18nMessage);
    }

    public void addInfoMessage(String i18nTitle, String i18nMessage) {
        addInfoMessage(null, i18nTitle, i18nMessage);
    }

    public void addWarnMessage(String componentID, String i18nTitle, String i18nMessage) {
        addMessage(componentID, FacesMessage.SEVERITY_WARN, i18nTitle, i18nMessage);
    }

    public void addWarnMessage(String i18nTitle, String i18nMessage) {
        addWarnMessage(null, i18nTitle, i18nMessage);
    }

    public void addErrorMessage(String componentID, String i18nTitle, String i18nMessage) {
        addMessage(componentID, FacesMessage.SEVERITY_ERROR, i18nTitle, i18nMessage);
    }

    public void addErrorMessage(String i18nTitle, String i18nMessage) {
        addErrorMessage(null, i18nTitle, i18nMessage);
    }
    
    protected String getTextParameter(String paramName) {
        return (String) getFacesContext().getExternalContext().getRequestParameterMap().get(paramName);
    }

    protected Object getParameter(String paramName) {
        return getFacesContext().getExternalContext().getRequestParameterMap().get(paramName);
    }
    
    protected FacesContext getFacesContext() {
        return FacesContext.getCurrentInstance();
    }
    
    
    protected UIComponent getComponentById(String componentId) {
        return getFacesContext().getViewRoot().findComponent(componentId);
    }
    
    protected String getMessageBundle() {
        return getFacesContext().getApplication().getMessageBundle();
    }
    
    protected String getResourceMessage(String key, Object params[]) {
        return MessageResourceUtils.getMessageResourceString(getMessageBundle(), key, params, getFacesContext().getViewRoot()
				.getLocale());
    }

    protected String getResourceMessage(String key) {
        return getResourceMessage(key, null);
    }
    
    protected ExpressionFactory getExpressionFactory() {
        return getFacesContext().getApplication().getExpressionFactory();
    }
}