import 'models.dart';
import 'providers/aggregators.dart';
import 'providers/aichatos.dart';
import 'providers/base_provider.dart';
import 'providers/blackbox.dart';
import 'providers/chatgpt_oss.dart';
import 'providers/cloudflare.dart';
import 'providers/cohere_space.dart';
import 'providers/copilot_app.dart';
import 'providers/deep_ai.dart';
import 'providers/duckduckgo.dart';
import 'providers/free2gpt.dart';
import 'providers/glm.dart';
import 'providers/hugging_chat.dart';
import 'providers/liaobots.dart';
import 'providers/opera_aria.dart';
import 'providers/phind_ai.dart';
import 'providers/pollinations.dart';
import 'providers/qwen.dart';
import 'providers/quillbot.dart';
import 'providers/teach_anything.dart';
import 'providers/webview/deepinfra_webview.dart';
import 'providers/you_chat.dart';
import 'providers/yqcloud.dart';
import 'retry.dart';

class G4FChatCompletions {
  /// REST-live first, then Python-hosted OpenAI-compat, then WAF/WebView.
  final List<BaseProvider> _providers = [
    Yqcloud(),
    DeepAi(),
    Quillbot(),
    KiloCode(),
    OpenCode(),
    G4FSpace(),
    Pollinations(),
    PhindAi(),
    TeachAnything(),
    CopilotApp(),
    ChatGptOss(),
    AiChatOs(),
    OperaAria(),
    Liaobots(),
    YouChat(),
    Free2Gpt(),
    CohereSpace(),
    GlmZai(),
    DuckDuckGo(),
    Blackbox(),
    HuggingChat(),
    QwenChat(),
    CloudflareAi(),
    DeepInfraWebView(),
  ];

  List<BaseProvider> get providers => List.unmodifiable(_providers);

  late final IterListProvider _retry = IterListProvider(_providers);

  /// Full completion via g4f IterListProvider (try next on failure).
  Future<String> create({
    required List<Message> messages,
    String? model,
  }) {
    return _retry.create(messages: messages, model: model ?? G4FModels.gpt4o);
  }

  Stream<String> createStream({
    required List<Message> messages,
    String? model,
  }) async* {
    yield await create(messages: messages, model: model);
  }
}

class G4FChat {
  final completions = G4FChatCompletions();
}

/// Mirrors `g4f.client.Client`.
class G4FClient {
  final chat = G4FChat();
}