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package org.robolectric.shadows;

import static org.robolectric.util.reflector.Reflector.reflector;

import android.annotation.RequiresApi;
import android.media.AudioDeviceInfo;
import android.media.AudioProfile;
import android.os.Build.VERSION;
import android.os.Build.VERSION_CODES;
import android.util.SparseIntArray;
import com.google.common.collect.ImmutableList;
import com.google.errorprone.annotations.CanIgnoreReturnValue;
import java.util.List;
import org.robolectric.shadow.api.Shadow;
import org.robolectric.util.ReflectionHelpers;
import org.robolectric.util.ReflectionHelpers.ClassParameter;
import org.robolectric.util.reflector.Accessor;
import org.robolectric.util.reflector.ForType;
import org.robolectric.util.reflector.Static;

/** Builder for {@link AudioDeviceInfo}. */
@RequiresApi(VERSION_CODES.M)
public class AudioDeviceInfoBuilder {

  private int type = AudioDeviceInfo.TYPE_BUILTIN_SPEAKER;
  private ImmutableList profiles = ImmutableList.of();

  private AudioDeviceInfoBuilder() {}

  public static AudioDeviceInfoBuilder newBuilder() {
    return new AudioDeviceInfoBuilder();
  }

  /**
   * Sets the device type.
   *
   * The default is {@link AudioDeviceInfo#TYPE_BUILTIN_SPEAKER}.
   *
   * @param type The device type. The possible values are the constants defined as AudioDeviceInfo.AudioDeviceType
   */
  @CanIgnoreReturnValue
  public AudioDeviceInfoBuilder setType(int type) {
    this.type = type;
    return this;
  }

  /**
   * Sets the {@link AudioProfile profiles}.
   *
   * @param profiles The list of {@link AudioProfile profiles}.
   */
  @RequiresApi(VERSION_CODES.S)
  @CanIgnoreReturnValue
  public AudioDeviceInfoBuilder setProfiles(List profiles) {
    this.profiles = ImmutableList.copyOf(profiles);
    return this;
  }

  public AudioDeviceInfo build() {
    Object port = Shadow.newInstanceOf("android.media.AudioDevicePort");
    ReflectionHelpers.setField(port, "mType", externalToInternalType(type));
    ReflectionHelpers.setField(port, "mAddress", "");
    Object handle = Shadow.newInstanceOf("android.media.AudioHandle");
    ReflectionHelpers.setField(handle, "mId", 0);
    ReflectionHelpers.setField(port, "mHandle", handle);
    if (VERSION.SDK_INT >= 31) {
      ReflectionHelpers.setField(port, "mProfiles", profiles);
    }
    return ReflectionHelpers.callConstructor(
        AudioDeviceInfo.class, ClassParameter.from(port.getClass(), port));
  }

  /** Accessor interface for {@link AudioDeviceInfo}'s internals. */
  @ForType(AudioDeviceInfo.class)
  interface AudioDeviceInfoReflector {

    @Static
    @Accessor("EXT_TO_INT_DEVICE_MAPPING")
    SparseIntArray getExtToIntDeviceMapping();
  }

  private static int externalToInternalType(int externalType) {
    return reflector(AudioDeviceInfoReflector.class).getExtToIntDeviceMapping().get(externalType);
  }
}