// Copyright 2018 The Bazel Authors. All rights reserved.
//
// 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.google.devtools.build.skydoc.fakebuildapi;

import com.google.devtools.build.lib.skylarkbuildapi.core.ProviderApi;
import com.google.devtools.build.lib.syntax.BaseFunction;
import com.google.devtools.build.lib.syntax.Dict;
import com.google.devtools.build.lib.syntax.FunctionSignature;
import com.google.devtools.build.lib.syntax.Printer;
import com.google.devtools.build.lib.syntax.StarlarkThread;
import com.google.devtools.build.lib.syntax.Tuple;

/** Fake callable implementation of {@link ProviderApi}. */
public class FakeProviderApi extends BaseFunction implements ProviderApi {

  /**
   * Each fake is constructed with a unique name, controlled by this counter being the name suffix.
   */
  private static int idCounter = 0;

  private final String name = "ProviderIdentifier" + idCounter++;

  @Override
  public Object call(StarlarkThread thread, Tuple<Object> args, Dict<String, Object> kwargs) {
    return new FakeStructApi();
  }

  @Override
  public String getName() {
    return name;
  }

  @Override
  public FunctionSignature getSignature() {
    return FunctionSignature.KWARGS;
  }

  @Override
  public void repr(Printer printer) {}
}