/*
 * {"id":"chatcmpl-123","object":"chat.completion.chunk","created":1694268190,"model":"gpt-4o-mini", "system_fingerprint": "fp_44709d6fcb", "choices":[{"index":0,"delta":{"role":"assistant","content":""},"logprobs":null,"finish_reason":null}]}
 */

import 'package:json_annotation/json_annotation.dart';

part 'stream_chat_origin_data.g.dart';

@JsonSerializable()
class StreamChatOriginData {
  @JsonKey(name: "choices")
  final List<Choices>? choices;

  StreamChatOriginData({
    required this.choices,
  });

  factory StreamChatOriginData.fromJson(Map<String, dynamic> json) =>
      _$StreamChatOriginDataFromJson(json);
}

@JsonSerializable()
class Choices {
  @JsonKey(name: "index")
  final int? index;
  @JsonKey(name: "delta")
  final Delta? delta;
  @JsonKey(name: "finishReason")
  final String? finishReason;

  Choices({
    required this.index,
    required this.delta,
    required this.finishReason,
  });

  factory Choices.fromJson(Map<String, dynamic> json) =>
      _$ChoicesFromJson(json);
}

@JsonSerializable()
class Delta {
  @JsonKey(name: "role")
  final String? role;
  @JsonKey(name: "content")
  final String? content;

  Delta({
    required this.role,
    required this.content,
  });

  factory Delta.fromJson(Map<String, dynamic> json) => _$DeltaFromJson(json);
}