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// Licensed to the Software Freedom Conservancy (SFC) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The SFC licenses this file
// to you 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 org.openqa.selenium.safari;

import static java.util.Collections.unmodifiableList;
import static java.util.Collections.unmodifiableMap;
import static java.util.concurrent.TimeUnit.MILLISECONDS;
import static org.openqa.selenium.remote.Browser.SAFARI_TECH_PREVIEW;

import com.google.auto.service.AutoService;
import java.io.File;
import java.io.IOException;
import java.io.OutputStream;
import java.time.Duration;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.openqa.selenium.Capabilities;
import org.openqa.selenium.WebDriverException;
import org.openqa.selenium.net.PortProber;
import org.openqa.selenium.remote.service.DriverFinder;
import org.openqa.selenium.remote.service.DriverService;

/** Manages the life and death of SafariDriver Technology Preview. */
public class SafariTechPreviewDriverService extends DriverService {

  public static final String TP_SAFARI_DRIVER_NAME = "safaridriver";

  /**
   * System property that defines the location of the safaridriver executable that will be used by
   * the {@link #createDefaultService() default service}.
   */
  public static final String TP_SAFARI_DRIVER_EXE_PROPERTY = "webdriver.tp.safari.driver";

  public static final String TP_SAFARI_DRIVER_LOGGING = "webdriver.tp.safari.logging";

  private static final File TP_SAFARI_DRIVER_EXECUTABLE =
      new File("/Applications/Safari Technology Preview.app/Contents/MacOS/safaridriver");

  /**
   * @param executable The SafariDriver executable.
   * @param port Which port to start the SafariDriver on.
   * @param timeout Timeout waiting for driver server to start.
   * @param args The arguments to the launched server.
   * @param environment The environment for the launched server.
   * @throws IOException If an I/O error occurs.
   */
  public SafariTechPreviewDriverService(
      File executable,
      int port,
      Duration timeout,
      List args,
      Map environment)
      throws IOException {
    super(
        executable,
        port,
        timeout,
        unmodifiableList(new ArrayList<>(args)),
        unmodifiableMap(new HashMap<>(environment)));
  }

  public String getDriverName() {
    return TP_SAFARI_DRIVER_NAME;
  }

  public String getDriverProperty() {
    return TP_SAFARI_DRIVER_EXE_PROPERTY;
  }

  public File getDriverExecutable() {
    return TP_SAFARI_DRIVER_EXECUTABLE;
  }

  @Override
  public Capabilities getDefaultDriverOptions() {
    return new SafariOptions().setUseTechnologyPreview(true);
  }

  /**
   * Configures and returns a new {@link SafariTechPreviewDriverService} using the default
   * configuration. In this configuration, the service will use the SafariDriver executable
   * identified by the {@link DriverFinder#getDriverPath()} (DriverService, Capabilities)}. Each
   * service created by this method will be configured to use a free port on the current system.
   *
   * @return A new SafariTechPreviewDriverService using the default configuration.
   */
  public static SafariTechPreviewDriverService createDefaultService() {
    return new Builder().build();
  }

  @Override
  protected void waitUntilAvailable() {
    try {
      PortProber.waitForPortUp(getUrl().getPort(), (int) getTimeout().toMillis(), MILLISECONDS);
    } catch (RuntimeException e) {
      throw new WebDriverException(e);
    }
  }

  /** Builder used to configure new {@link SafariTechPreviewDriverService} instances. */
  @SuppressWarnings({"rawtypes", "RedundantSuppression"})
  @AutoService(DriverService.Builder.class)
  public static class Builder
      extends DriverService.Builder<
          SafariTechPreviewDriverService, SafariTechPreviewDriverService.Builder> {

    private Boolean diagnose;

    @Override
    public int score(Capabilities capabilities) {
      int score = 0;

      if (SAFARI_TECH_PREVIEW.browserName().equals(capabilities.getBrowserName())) {
        score++;
      }

      return score;
    }

    public SafariTechPreviewDriverService.Builder withLogging(Boolean logging) {
      this.diagnose = logging;
      return this;
    }

    @Override
    public SafariTechPreviewDriverService.Builder withLogFile(File logFile) {
      throw new WebDriverException(
          "Can not set log location for Safari; use withLogging(true) and locate log in"
              + " ~/Library/Logs/com.apple.WebDriver/");
    }

    @Override
    protected void loadSystemProperties() {
      if (diagnose == null) {
        this.diagnose = Boolean.getBoolean(TP_SAFARI_DRIVER_LOGGING);
      }
    }

    @Override
    protected List createArgs() {
      List args = new ArrayList<>(Arrays.asList("--port", String.valueOf(getPort())));
      if (Boolean.TRUE.equals(diagnose)) {
        args.add("--diagnose");
      }
      return args;
    }

    @Override
    protected SafariTechPreviewDriverService createDriverService(
        File exe, int port, Duration timeout, List args, Map environment) {
      try {
        withLogOutput(OutputStream.nullOutputStream());
        return new SafariTechPreviewDriverService(exe, port, timeout, args, environment);
      } catch (IOException e) {
        throw new WebDriverException(e);
      }
    }
  }
}