/*
 * Copyright The OpenTelemetry Authors
 * SPDX-License-Identifier: Apache-2.0
 */

package com.splunkotelreactnative.exporter.network;

import android.os.Build;
import android.telephony.TelephonyManager;
import androidx.annotation.Nullable;
import androidx.annotation.RequiresApi;
import java.util.Objects;

@RequiresApi(api = Build.VERSION_CODES.P)
final class Carrier {

  private final int id;
  private final @Nullable String name;
  private final @Nullable String mobileCountryCode; // 3 digits
  private final @Nullable String mobileNetworkCode; // 2 or 3 digits
  private final @Nullable String isoCountryCode;

  static Builder builder() {
    return new Builder();
  }

  Carrier(Builder builder) {
    this.id = builder.id;
    this.name = builder.name;
    this.mobileCountryCode = builder.mobileCountryCode;
    this.mobileNetworkCode = builder.mobileNetworkCode;
    this.isoCountryCode = builder.isoCountryCode;
  }

  int getId() {
    return id;
  }

  @Nullable
  String getName() {
    return name;
  }

  @Nullable
  String getMobileCountryCode() {
    return mobileCountryCode;
  }

  @Nullable
  String getMobileNetworkCode() {
    return mobileNetworkCode;
  }

  @Nullable
  String getIsoCountryCode() {
    return isoCountryCode;
  }

  @Override
  public boolean equals(Object o) {
    if (this == o) return true;
    if (o == null || getClass() != o.getClass()) return false;
    Carrier carrier = (Carrier) o;
    return id == carrier.id
      && Objects.equals(name, carrier.name)
      && Objects.equals(mobileCountryCode, carrier.mobileCountryCode)
      && Objects.equals(mobileNetworkCode, carrier.mobileNetworkCode)
      && Objects.equals(isoCountryCode, carrier.isoCountryCode);
  }

  @Override
  public int hashCode() {
    return Objects.hash(id, name, mobileCountryCode, mobileNetworkCode, isoCountryCode);
  }

  @Override
  public String toString() {
    return "Carrier{"
      + "id="
      + id
      + ", name='"
      + name
      + '\''
      + ", mobileCountryCode='"
      + mobileCountryCode
      + '\''
      + ", mobileNetworkCode='"
      + mobileNetworkCode
      + '\''
      + ", isoCountryCode='"
      + isoCountryCode
      + '\''
      + '}';
  }

  static class Builder {
    private int id = TelephonyManager.UNKNOWN_CARRIER_ID;
    private @Nullable String name = null;
    private @Nullable String mobileCountryCode = null;
    private @Nullable String mobileNetworkCode = null;
    private @Nullable String isoCountryCode = null;

    Carrier build() {
      return new Carrier(this);
    }

    Builder id(int id) {
      this.id = id;
      return this;
    }

    Builder name(String name) {
      this.name = name;
      return this;
    }

    Builder mobileCountryCode(String countryCode) {
      this.mobileCountryCode = countryCode;
      return this;
    }

    Builder mobileNetworkCode(String networkCode) {
      this.mobileNetworkCode = networkCode;
      return this;
    }

    Builder isoCountryCode(String isoCountryCode) {
      this.isoCountryCode = isoCountryCode;
      return this;
    }
  }
}