/*******************************************************************************
 * Copyright (c) 2014 Jeff Martin.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the GNU Public License v3.0
 * which accompanies this distribution, and is available at
 * http://www.gnu.org/licenses/gpl.html
 * 
 * Contributors:
 *     Jeff Martin - initial API and implementation
 ******************************************************************************/
package cuchaz.enigma;

import static cuchaz.enigma.EntryFactory.*;
import static org.hamcrest.MatcherAssert.*;
import static org.hamcrest.Matchers.*;

import java.util.Collection;
import java.util.Set;
import java.util.jar.JarFile;

import org.junit.Test;

import cuchaz.enigma.analysis.Access;
import cuchaz.enigma.analysis.EntryReference;
import cuchaz.enigma.analysis.JarIndex;
import cuchaz.enigma.analysis.TranslationIndex;
import cuchaz.enigma.mapping.BehaviorEntry;
import cuchaz.enigma.mapping.ClassEntry;
import cuchaz.enigma.mapping.ConstructorEntry;
import cuchaz.enigma.mapping.FieldEntry;
import cuchaz.enigma.mapping.MethodEntry;

public class TestJarIndexInheritanceTree {
	
	private JarIndex m_index;
	
	private ClassEntry m_baseClass = new ClassEntry("none/a");
	private ClassEntry m_subClassA = new ClassEntry("none/b");
	private ClassEntry m_subClassAA = new ClassEntry("none/d");
	private ClassEntry m_subClassB = new ClassEntry("none/c");
	private FieldEntry m_nameField = new FieldEntry(m_baseClass, "a");
	private FieldEntry m_numThingsField = new FieldEntry(m_subClassB, "a");
	
	public TestJarIndexInheritanceTree() throws Exception {
		m_index = new JarIndex();
		m_index.indexJar(new JarFile("build/libs/testInheritanceTree.obf.jar"), false);
	}
	
	@Test
	public void obfEntries() {
		assertThat(m_index.getObfClassEntries(), containsInAnyOrder(
			newClass("cuchaz/enigma/inputs/Keep"),
			m_baseClass,
			m_subClassA,
			m_subClassAA,
			m_subClassB
		));
	}
	
	@Test
	public void translationIndex() {
		
		TranslationIndex index = m_index.getTranslationIndex();
		
		// base class
		assertThat(index.getSuperclassName(m_baseClass.getName()), is(nullValue()));
		assertThat(index.getAncestry(m_baseClass.getName()), is(empty()));
		assertThat(index.getSubclassNames(m_baseClass.getName()), containsInAnyOrder(
			m_subClassA.getName(),
			m_subClassB.getName()
		));
		
		// subclass a
		assertThat(index.getSuperclassName(m_subClassA.getName()), is(m_baseClass.getName()));
		assertThat(index.getAncestry(m_subClassA.getName()), contains(m_baseClass.getName()));
		assertThat(index.getSubclassNames(m_subClassA.getName()), contains(m_subClassAA.getName()));
		
		// subclass aa
		assertThat(index.getSuperclassName(m_subClassAA.getName()), is(m_subClassA.getName()));
		assertThat(index.getAncestry(m_subClassAA.getName()), contains(m_subClassA.getName(), m_baseClass.getName()));
		assertThat(index.getSubclassNames(m_subClassAA.getName()), is(empty()));
		
		// subclass b
		assertThat(index.getSuperclassName(m_subClassB.getName()), is(m_baseClass.getName()));
		assertThat(index.getAncestry(m_subClassB.getName()), contains(m_baseClass.getName()));
		assertThat(index.getSubclassNames(m_subClassB.getName()), is(empty()));
	}
	
	@Test
	public void access() {
		assertThat(m_index.getAccess(m_nameField), is(Access.Private));
		assertThat(m_index.getAccess(m_numThingsField), is(Access.Private));
	}
	
	@Test
	public void relatedMethodImplementations() {
		
		Set<MethodEntry> entries;
		
		// getName()
		entries = m_index.getRelatedMethodImplementations(new MethodEntry(m_baseClass, "a", "()Ljava/lang/String;"));
		assertThat(entries, containsInAnyOrder(
			new MethodEntry(m_baseClass, "a", "()Ljava/lang/String;"),
			new MethodEntry(m_subClassAA, "a", "()Ljava/lang/String;")
		));
		entries = m_index.getRelatedMethodImplementations(new MethodEntry(m_subClassAA, "a", "()Ljava/lang/String;"));
		assertThat(entries, containsInAnyOrder(
			new MethodEntry(m_baseClass, "a", "()Ljava/lang/String;"),
			new MethodEntry(m_subClassAA, "a", "()Ljava/lang/String;")
		));
		
		// doBaseThings()
		entries = m_index.getRelatedMethodImplementations(new MethodEntry(m_baseClass, "a", "()V"));
		assertThat(entries, containsInAnyOrder(
			new MethodEntry(m_baseClass, "a", "()V"),
			new MethodEntry(m_subClassAA, "a", "()V"),
			new MethodEntry(m_subClassB, "a", "()V")
		));
		entries = m_index.getRelatedMethodImplementations(new MethodEntry(m_subClassAA, "a", "()V"));
		assertThat(entries, containsInAnyOrder(
			new MethodEntry(m_baseClass, "a", "()V"),
			new MethodEntry(m_subClassAA, "a", "()V"),
			new MethodEntry(m_subClassB, "a", "()V")
		));
		entries = m_index.getRelatedMethodImplementations(new MethodEntry(m_subClassB, "a", "()V"));
		assertThat(entries, containsInAnyOrder(
			new MethodEntry(m_baseClass, "a", "()V"),
			new MethodEntry(m_subClassAA, "a", "()V"),
			new MethodEntry(m_subClassB, "a", "()V")
		));
		
		// doBThings
		entries = m_index.getRelatedMethodImplementations(new MethodEntry(m_subClassB, "b", "()V"));
		assertThat(entries, containsInAnyOrder(new MethodEntry(m_subClassB, "b", "()V")));
	}
	
	@Test
	@SuppressWarnings("unchecked")
	public void fieldReferences() {
		Collection<EntryReference<FieldEntry,BehaviorEntry>> references;
		
		// name
		references = m_index.getFieldReferences(m_nameField);
		assertThat(references, containsInAnyOrder(
			newFieldReferenceByConstructor(m_nameField, m_baseClass.getName(), "(Ljava/lang/String;)V"),
			newFieldReferenceByMethod(m_nameField, m_baseClass.getName(), "a", "()Ljava/lang/String;")
		));
		
		// numThings
		references = m_index.getFieldReferences(m_numThingsField);
		assertThat(references, containsInAnyOrder(
			newFieldReferenceByConstructor(m_numThingsField, m_subClassB.getName(), "()V"),
			newFieldReferenceByMethod(m_numThingsField, m_subClassB.getName(), "b", "()V")
		));
	}
	
	@Test
	@SuppressWarnings("unchecked")
	public void behaviorReferences() {
		
		BehaviorEntry source;
		Collection<EntryReference<BehaviorEntry,BehaviorEntry>> references;
		
		// baseClass constructor
		source = new ConstructorEntry(m_baseClass, "(Ljava/lang/String;)V");
		references = m_index.getBehaviorReferences(source);
		assertThat(references, containsInAnyOrder(
			newBehaviorReferenceByConstructor(source, m_subClassA.getName(), "(Ljava/lang/String;)V"),
			newBehaviorReferenceByConstructor(source, m_subClassB.getName(), "()V")
		));
		
		// subClassA constructor
		source = new ConstructorEntry(m_subClassA, "(Ljava/lang/String;)V");
		references = m_index.getBehaviorReferences(source);
		assertThat(references, containsInAnyOrder(
			newBehaviorReferenceByConstructor(source, m_subClassAA.getName(), "()V")
		));
		
		// baseClass.getName()
		source = new MethodEntry(m_baseClass, "a", "()Ljava/lang/String;");
		references = m_index.getBehaviorReferences(source);
		assertThat(references, containsInAnyOrder(
			newBehaviorReferenceByMethod(source, m_subClassAA.getName(), "a", "()Ljava/lang/String;"),
			newBehaviorReferenceByMethod(source, m_subClassB.getName(), "a", "()V")
		));
		
		// subclassAA.getName()
		source = new MethodEntry(m_subClassAA, "a", "()Ljava/lang/String;");
		references = m_index.getBehaviorReferences(source);
		assertThat(references, containsInAnyOrder(
			newBehaviorReferenceByMethod(source, m_subClassAA.getName(), "a", "()V")
		));
	}
	
	@Test
	public void containsEntries() {
		
		// classes
		assertThat(m_index.containsObfClass(m_baseClass), is(true));
		assertThat(m_index.containsObfClass(m_subClassA), is(true));
		assertThat(m_index.containsObfClass(m_subClassAA), is(true));
		assertThat(m_index.containsObfClass(m_subClassB), is(true));
		
		// fields
		assertThat(m_index.containsObfField(m_nameField), is(true));
		assertThat(m_index.containsObfField(m_numThingsField), is(true));
		
		// methods
		// getName()
		assertThat(m_index.containsObfBehavior(new MethodEntry(m_baseClass, "a", "()Ljava/lang/String;")), is(true));
		assertThat(m_index.containsObfBehavior(new MethodEntry(m_subClassA, "a", "()Ljava/lang/String;")), is(false));
		assertThat(m_index.containsObfBehavior(new MethodEntry(m_subClassAA, "a", "()Ljava/lang/String;")), is(true));
		assertThat(m_index.containsObfBehavior(new MethodEntry(m_subClassB, "a", "()Ljava/lang/String;")), is(false));
		
		// doBaseThings()
		assertThat(m_index.containsObfBehavior(new MethodEntry(m_baseClass, "a", "()V")), is(true));
		assertThat(m_index.containsObfBehavior(new MethodEntry(m_subClassA, "a", "()V")), is(false));
		assertThat(m_index.containsObfBehavior(new MethodEntry(m_subClassAA, "a", "()V")), is(true));
		assertThat(m_index.containsObfBehavior(new MethodEntry(m_subClassB, "a", "()V")), is(true));
		
		// doBThings()
		assertThat(m_index.containsObfBehavior(new MethodEntry(m_baseClass, "b", "()V")), is(false));
		assertThat(m_index.containsObfBehavior(new MethodEntry(m_subClassA, "b", "()V")), is(false));
		assertThat(m_index.containsObfBehavior(new MethodEntry(m_subClassAA, "b", "()V")), is(false));
		assertThat(m_index.containsObfBehavior(new MethodEntry(m_subClassB, "b", "()V")), is(true));
		
	}
}