package org.whispersystems.signalservice.api.storage;

import com.google.protobuf.ByteString;

import org.whispersystems.libsignal.util.guava.Optional;
import org.whispersystems.signalservice.api.util.OptionalUtil;
import org.whispersystems.signalservice.api.util.ProtoUtil;
import org.whispersystems.signalservice.internal.storage.protos.AccountRecord;

import java.util.Objects;

public final class SignalAccountRecord implements SignalRecord {

  private final StorageId     id;
  private final AccountRecord proto;
  private final boolean       hasUnknownFields;

  private final Optional<String> givenName;
  private final Optional<String> familyName;
  private final Optional<String> avatarUrlPath;
  private final Optional<byte[]> profileKey;

  public SignalAccountRecord(StorageId id, AccountRecord proto) {
    this.id               = id;
    this.proto            = proto;
    this.hasUnknownFields = ProtoUtil.hasUnknownFields(proto);

    this.givenName     = OptionalUtil.absentIfEmpty(proto.getGivenName());
    this.familyName    = OptionalUtil.absentIfEmpty(proto.getFamilyName());
    this.profileKey    = OptionalUtil.absentIfEmpty(proto.getProfileKey());
    this.avatarUrlPath = OptionalUtil.absentIfEmpty(proto.getAvatarUrlPath());
  }

  @Override
  public StorageId getId() {
    return id;
  }

  public boolean hasUnknownFields() {
    return hasUnknownFields;
  }

  public byte[] serializeUnknownFields() {
    return hasUnknownFields ? proto.toByteArray() : null;
  }

  public Optional<String> getGivenName() {
    return givenName;
  }

  public Optional<String> getFamilyName() {
    return familyName;
  }

  public Optional<byte[]> getProfileKey() {
    return profileKey;
  }

  public Optional<String> getAvatarUrlPath() {
    return avatarUrlPath;
  }

  public boolean isNoteToSelfArchived() {
    return proto.getNoteToSelfArchived();
  }

  public boolean isNoteToSelfForcedUnread() {
    return proto.getNoteToSelfMarkedUnread();
  }

  public boolean isReadReceiptsEnabled() {
    return proto.getReadReceipts();
  }

  public boolean isTypingIndicatorsEnabled() {
    return proto.getTypingIndicators();
  }

  public boolean isSealedSenderIndicatorsEnabled() {
    return proto.getSealedSenderIndicators();
  }

  public boolean isLinkPreviewsEnabled() {
    return proto.getLinkPreviews();
  }

  public AccountRecord.PhoneNumberSharingMode getPhoneNumberSharingMode() {
    return proto.getPhoneNumberSharingMode();
  }

  public boolean isPhoneNumberUnlisted() {
    return proto.getUnlistedPhoneNumber();
  }

  AccountRecord toProto() {
    return proto;
  }

  @Override
  public boolean equals(Object o) {
    if (this == o) return true;
    if (o == null || getClass() != o.getClass()) return false;
    SignalAccountRecord that = (SignalAccountRecord) o;
    return id.equals(that.id) &&
        proto.equals(that.proto);
  }

  @Override
  public int hashCode() {
    return Objects.hash(id, proto);
  }

  public static final class Builder {
    private final StorageId             id;
    private final AccountRecord.Builder builder;

    private byte[] unknownFields;

    public Builder(byte[] rawId) {
      this.id      = StorageId.forAccount(rawId);
      this.builder = AccountRecord.newBuilder();
    }

    public Builder setUnknownFields(byte[] serializedUnknowns) {
      this.unknownFields = serializedUnknowns;
      return this;
    }

    public Builder setGivenName(String givenName) {
      builder.setGivenName(givenName == null ? "" : givenName);
      return this;
    }

    public Builder setFamilyName(String familyName) {
      builder.setFamilyName(familyName == null ? "" : familyName);
      return this;
    }

    public Builder setProfileKey(byte[] profileKey) {
      builder.setProfileKey(profileKey == null ? ByteString.EMPTY : ByteString.copyFrom(profileKey));
      return this;
    }

    public Builder setAvatarUrlPath(String urlPath) {
      builder.setAvatarUrlPath(urlPath == null ? "" : urlPath);
      return this;
    }

    public Builder setNoteToSelfArchived(boolean archived) {
      builder.setNoteToSelfArchived(archived);
      return this;
    }

    public Builder setNoteToSelfForcedUnread(boolean forcedUnread) {
      builder.setNoteToSelfMarkedUnread(forcedUnread);
      return this;
    }

    public Builder setReadReceiptsEnabled(boolean enabled) {
      builder.setReadReceipts(enabled);
      return this;
    }

    public Builder setTypingIndicatorsEnabled(boolean enabled) {
      builder.setTypingIndicators(enabled);
      return this;
    }

    public Builder setSealedSenderIndicatorsEnabled(boolean enabled) {
      builder.setSealedSenderIndicators(enabled);
      return this;
    }

    public Builder setLinkPreviewsEnabled(boolean enabled) {
      builder.setLinkPreviews(enabled);
      return this;
    }

    public Builder setPhoneNumberSharingMode(AccountRecord.PhoneNumberSharingMode mode) {
      builder.setPhoneNumberSharingMode(mode);
      return this;
    }

    public Builder setUnlistedPhoneNumber(boolean unlisted) {
      builder.setUnlistedPhoneNumber(unlisted);
      return this;
    }

    public SignalAccountRecord build() {
      AccountRecord proto = builder.build();

      if (unknownFields != null) {
        proto = ProtoUtil.combineWithUnknownFields(proto, unknownFields);
      }

      return new SignalAccountRecord(id, proto);
    }
  }
}