package extended.forms;

import java.util.Iterator;

import javax.jcr.Node;
import javax.jcr.RepositoryException;

import org.apache.commons.lang.StringUtils;

import info.magnolia.context.MgnlContext;
import info.magnolia.jcr.util.NodeUtil;
import info.magnolia.module.form.engine.FormField;
import info.magnolia.module.form.engine.FormStepState;
import info.magnolia.module.form.templates.components.DefaultFormDataBinder;
import info.magnolia.util.EscapeUtil;

/**
 * Custom form data binder which supports binding without validation.
 */
public class ExtendedFormDataBinder extends DefaultFormDataBinder {

  private static final String CONTENT_NAME_TEXT_FIELD_GROUP = "edits";

  /**
   * Binds the given component to a form step.
   * @param component the component
   * @return the {@link FormStepState}
   * @throws RepositoryException if anything goes wrong while reading from the given node.
   */
  public FormStepState bind(Node component) throws RepositoryException {
    FormStepState step = new FormStepState();
    step.setParagraphUuid(NodeUtil.getNodeIdentifierIfPossible(component));
    if (component.hasNode("fieldsets")) {
      Iterator<Node> itFieldsets = NodeUtil.getNodes(component.getNode("fieldsets")).iterator();
      bindFieldset(itFieldsets, step);
    }
    return step;
  }

  private void bindFieldset(Iterator<Node> itFieldsets, FormStepState step)
      throws RepositoryException {
    while (itFieldsets.hasNext()) {
      Node fieldset = itFieldsets.next();
      if (fieldset.hasNode("fields")) {
        Iterator<Node> iterator = NodeUtil.getNodes(fieldset.getNode("fields")).iterator();
        bindFields(iterator, step);
      }
    }
  }

  private void bindFields(Iterator<Node> iterator, FormStepState step) throws RepositoryException {
    while (iterator.hasNext()) {
      final Node node = iterator.next();

      if (node.hasProperty("controlName")) {

        final String controlName = node.getProperty("controlName").getString();
        final String value = EscapeUtil.escapeXss(StringUtils.join(
            MgnlContext.getParameterValues(controlName), "__"));

        FormField field = new FormField();
        field.setName(controlName);
        field.setValue(value);
        step.add(field);

        if (node.hasNode(CONTENT_NAME_TEXT_FIELD_GROUP)) {
          Iterator<Node> textFieldGroup = NodeUtil.getNodes(
              node.getNode(CONTENT_NAME_TEXT_FIELD_GROUP)).iterator();
          bindFields(textFieldGroup, step);
        }
      }
    }
  }

}