/**
 * @zhin.js/ai - OpenAI Provider
 * 支持 OpenAI API 及兼容接口（DeepSeek、Moonshot 等）
 */
import { BaseProvider } from './base.js';
import type { ProviderConfig, ChatCompletionRequest, ChatCompletionResponse, ChatCompletionChunk, ChatMessage, ContentPart } from '../types.js';
import { type ImageGenerationDefaults, type ImageGenerateRequest, type ImageGenerateResult } from '../image-generation.js';
export interface OpenAIConfig extends ProviderConfig {
    organization?: string;
}
export declare class OpenAIProvider extends BaseProvider {
    name: string;
    protected readonly imageGenerationDefaults: ImageGenerationDefaults;
    models: string[];
    contextWindow: number;
    capabilities: {
        vision: boolean;
        streaming: boolean;
        toolCalling: boolean;
        thinking: boolean;
    };
    protected baseUrl: string;
    constructor(config?: OpenAIConfig);
    chat(request: ChatCompletionRequest): Promise<ChatCompletionResponse>;
    chatStream(request: ChatCompletionRequest): AsyncIterable<ChatCompletionChunk>;
    /** OpenAI Images API（gpt-image-2 / gpt-image-1.5 / gpt-image-1 等） */
    generateImage(request: ImageGenerateRequest): Promise<ImageGenerateResult>;
    listModels(): Promise<string[]>;
    /**
     * Normalize message roles to standard OpenAI-compatible values.
     * Converts internal roles (tool_call → assistant, tool_result → tool)
     * so that strict APIs like GLM don't reject the request.
     */
    private static normalizeMessages;
    /** 无 vision 能力的 API（如 DeepSeek）仅接受纯文本 content */
    static flattenMultimodalContent(content: string | ContentPart[]): string;
    static stripVisionFromMessages(messages: ChatMessage[]): ChatMessage[];
    /**
     * Build a clean request body with only standard OpenAI-compatible parameters.
     * Drops non-standard fields (think, etc.) and optional fields that are undefined,
     * so strict APIs won't reject unknown parameters.
     */
    protected buildRequestBody(request: ChatCompletionRequest): Record<string, unknown>;
    /**
     * If a 400 error mentions "Unsupported parameter: '<name>'", remove that
     * parameter from the request body and return the cleaned body for retry.
     * Returns null if the error is not about an unsupported parameter.
     */
    private static stripUnsupportedParam;
}
/**
 * Moonshot Provider（基于 OpenAI 兼容接口）
 */
export declare class MoonshotProvider extends OpenAIProvider {
    name: string;
    models: string[];
    constructor(config?: ProviderConfig);
    listModels(): Promise<string[]>;
}
/**
 * 智谱 AI Provider（基于 OpenAI 兼容接口）
 */
export declare class ZhipuProvider extends OpenAIProvider {
    name: string;
    models: string[];
    constructor(config?: ProviderConfig);
    /** 智谱文生图（OpenAI 兼容 /images/generations） */
    generateImage(request: ImageGenerateRequest): Promise<ImageGenerateResult>;
}
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