/*
 * Copyright 2000-2014 JetBrains s.r.o.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.intellij.codeInsight;

import com.intellij.psi.xml.XmlFile;
import com.intellij.psi.xml.XmlTag;
import com.intellij.testFramework.LightPlatformTestCase;
import com.intellij.xml.XmlAttributeDescriptor;
import com.intellij.xml.XmlElementDescriptor;
import com.intellij.xml.XmlNSDescriptor;

/**
 * @author Mike
 */
public class XmlInsightTest extends LightPlatformTestCase {
  public void testDocumentDescriptor1() throws Exception {
    XmlFile file = createFile("<root><a></a><b></b><a></a></root>");
    XmlNSDescriptor descriptor = createDescriptor(file);

    XmlElementDescriptor element = descriptor.getElementDescriptor(file.getDocument().getRootTag());
    assertNotNull(element);
    assertEquals("root", element.getName());

    element = descriptor.getElementDescriptor(file.getDocument().getRootTag().getSubTags()[0]);
    assertNotNull(element);
    assertEquals("a", element.getName());

    element = descriptor.getElementDescriptor(file.getDocument().getRootTag().getSubTags()[1]);
    assertNotNull(element);
    assertEquals("b", element.getName());

    element = descriptor.getElementDescriptor(file.getDocument().getRootTag().getSubTags()[2]);
    assertNotNull(element);
    assertEquals("a", element.getName());
  }

  public void testElementDescriptor1() throws Exception {
    XmlFile file = createFile("<root><a></a><b></b><a></a></root>");
    XmlNSDescriptor descriptor = createDescriptor(file);

    XmlTag rootTag = file.getDocument().getRootTag();
    XmlElementDescriptor element = descriptor.getElementDescriptor(rootTag);

    XmlElementDescriptor[] elements = element.getElementsDescriptors(rootTag);

    assertEquals(2, elements.length);
    assertEquals("a", elements[0].getName());
    assertEquals("b", elements[1].getName());
  }

  public void testElementDescriptor2() throws Exception {
    XmlFile file = createFile("<root><a><b/></a><a><c/></a></root>");
    XmlNSDescriptor descriptor = createDescriptor(file);

    XmlTag rootTag = file.getDocument().getRootTag();
    XmlElementDescriptor element = descriptor.getElementDescriptor(rootTag);
    element = element.getElementsDescriptors(rootTag)[0];

    XmlElementDescriptor[] elements = element.getElementsDescriptors(rootTag.getSubTags()[0]);

    assertEquals(2, elements.length);
    assertEquals("b", elements[0].getName());
    assertEquals("c", elements[1].getName());
  }

  public void testElementDescriptor3() throws Exception {
    XmlFile file = createFile("<root><a><b/><c></c></a><a><c/></a></root>");
    XmlNSDescriptor descriptor = createDescriptor(file);

    XmlTag rootTag = file.getDocument().getRootTag();
    XmlElementDescriptor element = descriptor.getElementDescriptor(rootTag);
    element = element.getElementsDescriptors(rootTag)[0];

    XmlElementDescriptor[] elements = element.getElementsDescriptors(rootTag.getSubTags()[0]);

    assertEquals(2, elements.length);
    assertEquals("b", elements[0].getName());
    //assertTrue(elements[0].getContentType() == XmlElementDescriptor.CONTENT_TYPE_EMPTY);

    assertEquals("c", elements[1].getName());
    //assertTrue(elements[1].getContentType() == XmlElementDescriptor.CONTENT_TYPE_CHILDREN);
  }

  public void testElementDescriptor4() throws Exception {
    XmlFile file = createFile("<root><a attr2=''></a><a attr1=''></a></root>");
    XmlNSDescriptor descriptor = createDescriptor(file);

    XmlTag rootTag = file.getDocument().getRootTag();
    XmlElementDescriptor element = descriptor.getElementDescriptor(rootTag);
    element = element.getElementsDescriptors(rootTag)[0];

    XmlAttributeDescriptor[] attributes = element.getAttributesDescriptors(rootTag);

    assertEquals(2, attributes.length);
    assertEquals("attr1", attributes[0].getName());
    assertEquals("attr2", attributes[1].getName());
  }

  public void testAttributeDescriptor1() throws Exception {
    XmlFile file = createFile("<root><a attr1=''></a><a attr2='' attr1=''></a></root>");
    XmlNSDescriptor descriptor = createDescriptor(file);

    XmlTag rootTag = file.getDocument().getRootTag();
    XmlElementDescriptor element = descriptor.getElementDescriptor(rootTag);
    element = element.getElementsDescriptors(rootTag)[0];

    XmlAttributeDescriptor[] attributes = element.getAttributesDescriptors(rootTag);

    assertEquals("attr1", attributes[0].getName());
    assertTrue(attributes[0].isRequired());

    assertEquals("attr2", attributes[1].getName());
    assertTrue(!attributes[1].isRequired());
  }

  public void testAttributeDescriptor2() throws Exception {
    XmlFile file = createFile("<root><a c='' a=''></a></root>");
    XmlNSDescriptor descriptor = createDescriptor(file);

    XmlTag rootTag = file.getDocument().getRootTag();
    XmlElementDescriptor element = descriptor.getElementDescriptor(rootTag);
    element = element.getElementsDescriptors(rootTag)[0];

    XmlAttributeDescriptor[] attributes = element.getAttributesDescriptors(rootTag);

    assertEquals("c", attributes[0].getName());
    assertTrue(attributes[0].isRequired());

    assertEquals("a", attributes[1].getName());
    assertTrue(attributes[1].isRequired());
  }

  private static XmlFile createFile(String text) {
    return (XmlFile)createFile("test.xml", text);
  }

  private static XmlNSDescriptor createDescriptor(XmlFile file) {
    return file.getDocument().getRootTagNSDescriptor();
  }

}