/**
 * AI SDK Provider 工厂与格式转换器
 *
 * 根据 model.api_format 使用官方 SDK 直接调用 API：
 *   1 → OpenAI Chat Completions (openai SDK)
 *   2 → Anthropic Messages (@anthropic-ai/sdk)
 *   3 → OpenAI Responses (openai SDK)
 */
import Anthropic from '@anthropic-ai/sdk';
import type { Message, MessageParam, MessageStreamEvent, Tool } from '@anthropic-ai/sdk/resources/messages/messages';
import OpenAI from 'openai';
export interface ModelRow {
    id: number;
    name: string;
    model_name: string;
    url: string;
    max_content_length: number;
    max_token: number;
    api_key: string;
    sort_index: number;
    api_format: number;
    model_label_id: number | null;
    capabilities: string | null;
    isLock: number;
    isDisable: number;
    user_id?: number;
    created_at: string;
}
export declare const LOCK_DURATION_MS: number;
export interface AIProvider {
    type: 'anthropic' | 'openai-chat' | 'openai-responses';
    client: Anthropic | OpenAI;
    modelName: string;
}
/**
 * 根据 api_format 创建官方 SDK 客户端
 */
export declare function createModelProvider(model: ModelRow): AIProvider;
export interface OpenAIMessage {
    role: string;
    content: string | Array<Record<string, unknown>> | null;
    tool_calls?: Array<{
        id: string;
        type: string;
        function: {
            name: string;
            arguments: string;
        };
    }>;
    tool_call_id?: string;
    name?: string;
}
export interface OpenAITool {
    type: string;
    function: {
        name: string;
        description?: string;
        parameters: Record<string, unknown>;
    };
}
export declare function convertToAnthropicMessages(messages: OpenAIMessage[], system?: string): {
    system?: string;
    messages: MessageParam[];
};
export interface GenericMessage {
    role: 'system' | 'user' | 'assistant' | 'tool';
    content: string | null;
    tool_call_id?: string;
    tool_calls?: Array<{
        id: string;
        type: 'function';
        function: {
            name: string;
            arguments: string;
        };
    }>;
}
export declare function convertToOpenAIChatMessages(messages: OpenAIMessage[]): GenericMessage[];
export declare function convertToAnthropicTools(tools: OpenAITool[]): Tool[];
export declare function convertToOpenAITools(tools: OpenAITool[]): Record<string, unknown>[];
export declare function convertAnthropicToChatCompletion(response: Message, modelName: string): Record<string, unknown>;
export declare function convertAnthropicStreamEvent(event: MessageStreamEvent): Record<string, unknown> | null;
export declare function isModelLocked(isLock: number): {
    locked: boolean;
    expired: boolean;
};
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