/*
 * 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.jetbrains.python.psi;

import com.intellij.openapi.components.ServiceManager;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.psi.PsiElement;
import com.intellij.psi.util.QualifiedName;
import com.jetbrains.python.psi.resolve.PyQualifiedNameResolveContext;
import com.jetbrains.python.psi.types.PyClassType;
import com.jetbrains.python.psi.types.PyType;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;

import java.util.Collection;
import java.util.List;

/**
 * @author yole
 */
public abstract class PyPsiFacade {
  public static PyPsiFacade getInstance(Project project) {
    return ServiceManager.getService(project, PyPsiFacade.class);
  }

  @NotNull
  public abstract List<PsiElement> resolveQualifiedName(@NotNull QualifiedName name, @NotNull PyQualifiedNameResolveContext context);

  @NotNull
  public abstract PyQualifiedNameResolveContext createResolveContextFromFoothold(@NotNull PsiElement foothold);
  /**
   * @deprecated use {@link #createClassByQName(String, PsiElement)} or skeleton may be found
   */
  @Deprecated
  @Nullable
  public abstract PyClass findClass(String qName);

  @NotNull
  public abstract PyClassType createClassType(@NotNull PyClass pyClass, boolean isDefinition);

  @Nullable
  public abstract PyType createUnionType(@NotNull Collection<PyType> members);

  @Nullable
  public abstract PyType createTupleType(@NotNull List<PyType> members, @NotNull PsiElement anchor);

  @Nullable
  public abstract PyType parseTypeAnnotation(@NotNull String annotation, @NotNull PsiElement anchor);

  @Nullable
  public abstract PyClass createClassByQName(@NotNull String qName, @NotNull PsiElement anchor);

  @Nullable
  public abstract String findShortestImportableName(@NotNull VirtualFile targetFile, @NotNull PsiElement anchor);
}
