/**
 * @file OpenAI 兼容 LLM Provider
 * @description 使用原生 fetch 实现，支持任意 OpenAI 兼容端点（OpenAI / DeepSeek / Ollama / vLLM 等）
 *              额外实现 BatchProvider + FileProvider 接口（OpenAI Batch API + Files API）
 */
import type { LLMProvider, ModelConfig, ModelInfo, ChatParams, ChatResponse, ChatChunk, BatchProvider, BatchInfo, BatchResult, FileProvider, UploadedFileInfo } from './types.js';
import type { Message, ContentPart } from '../types.js';
import { type DebugContext } from './debug.js';
export declare class OpenAIProvider implements LLMProvider, BatchProvider, FileProvider {
    protected config: Required<Pick<ModelConfig, 'provider' | 'model'>> & ModelConfig;
    constructor(config: ModelConfig);
    getModel(): ModelInfo;
    ping(): Promise<boolean>;
    chat(params: ChatParams): Promise<ChatResponse>;
    chatStream(params: ChatParams): AsyncGenerator<ChatChunk>;
    /** 更新配置（如 API Key 变更后） */
    updateConfig(updates: Partial<ModelConfig>): void;
    protected buildRequestBody(params: ChatParams, stream: boolean): Record<string, any>;
    /**
     * 将内部 Message[] 转换为 OpenAI API 格式
     * - string content 直接透传
     * - ContentPart[] 转换为 OpenAI 多模态格式
     */
    protected convertMessagesForApi(messages: Message[]): Record<string, any>[];
    /** 将 ContentPart 转换为 OpenAI API 格式 */
    protected convertContentPartForOpenAI(part: ContentPart): Record<string, any>;
    protected doRequest(body: Record<string, any>, signal?: AbortSignal, debugCtx?: DebugContext): Promise<Response>;
    uploadFile(filename: string, content: Buffer | string, purpose: 'assistants' | 'batch' | 'fine-tune' | 'vision'): Promise<UploadedFileInfo>;
    getFile(fileId: string): Promise<UploadedFileInfo>;
    listFiles(limit?: number, purpose?: string): Promise<UploadedFileInfo[]>;
    deleteFile(fileId: string): Promise<boolean>;
    downloadFile(fileId: string): Promise<Buffer>;
    getFileContent(fileId: string): Promise<string>;
    createBatch(inputFileId: string, options?: {
        completionWindow?: '24h';
        endpoint?: '/v1/chat/completions';
        metadata?: Record<string, string>;
    }): Promise<BatchInfo>;
    getBatch(batchId: string): Promise<BatchInfo>;
    listBatches(limit?: number): Promise<BatchInfo[]>;
    cancelBatch(batchId: string): Promise<BatchInfo>;
    getBatchResults(batchId: string): Promise<BatchResult[]>;
    /** 认证 headers */
    protected authHeaders(): Record<string, string>;
    /** 原始 fetch 请求（不带 JSON Content-Type，用于 multipart/GET） */
    protected doRawRequest(url: string, init: RequestInit & {
        proxy?: string;
    }): Promise<Response>;
    /** 解析文件信息 */
    protected parseFileInfo(data: any): UploadedFileInfo;
    /** 解析批处理任务信息 */
    protected parseBatchInfo(data: any): BatchInfo;
    /** 解析单条批处理结果 */
    protected parseBatchResult(data: any): BatchResult;
}
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