/**
 * OpenAI Responses API (/v1/responses, not Chat Completions) — wire types and provider implementation.
 */
import type { ChatMessageDto, ChatStreamPieceDto, ChatResponseDto, ProviderResponseDto, ProviderStreamEventDto } from '../protocol.js';
import { AIProvider, type ChatRequestOpts } from '../aiProvider.js';
export type OpenAIReasoningEffort = 'none' | 'low' | 'medium' | 'high';
export type OpenAIReasoningSummary = 'auto' | 'concise' | 'detailed';
export interface OpenAIWebSearchTool {
    type: 'web_search';
}
export type OpenAITool = OpenAIWebSearchTool;
export interface OpenAIResponsesApiRequestDto {
    model: string;
    input: string;
    reasoning?: {
        effort: OpenAIReasoningEffort;
        summary?: OpenAIReasoningSummary;
    };
    tools?: OpenAITool[];
    stream?: boolean;
}
export interface OpenAIResponseOutputText {
    text: string;
    type: 'output_text';
}
export interface OpenAIResponseReasoningSummary {
    text: string;
    type: 'summary_text';
}
export interface OpenAIResponseOutputMessage {
    type: 'message';
    content: Array<OpenAIResponseOutputText>;
}
export interface OpenAIResponseReasoningItem {
    type: 'reasoning';
    summary: Array<OpenAIResponseReasoningSummary>;
}
export type OpenAIResponseOutputItem = OpenAIResponseOutputMessage | OpenAIResponseReasoningItem;
export interface OpenAIResponsesApiResponseDto extends ProviderResponseDto {
    object: 'response';
    output_text: string;
    output: Array<OpenAIResponseOutputItem>;
}
interface OpenAIResponseEventBase {
    sequence_number: number;
}
interface OpenAIResponseItemLocation {
    item_id: string;
    output_index: number;
}
interface OpenAIResponseContentLocation extends OpenAIResponseItemLocation {
    content_index: number;
}
export type OpenAIResponseOutputTextDeltaEvent = OpenAIResponseEventBase & OpenAIResponseContentLocation & {
    type: 'response.output_text.delta';
    delta: string;
};
export type OpenAIResponseReasoningSummaryTextDeltaEvent = OpenAIResponseEventBase & OpenAIResponseItemLocation & {
    type: 'response.reasoning_summary_text.delta';
    delta: string;
    summary_index: number;
};
export type OpenAIResponseCompletedEvent = OpenAIResponseEventBase & {
    type: 'response.completed';
    response: OpenAIResponsesApiResponseDto;
};
export type OpenAIResponseErrorEvent = OpenAIResponseEventBase & {
    type: 'error';
    error: {
        type: string;
        code: string | null;
        message: string;
        param: string | null;
    };
};
export type OpenAIResponseFailedEvent = OpenAIResponseEventBase & {
    type: 'response.failed';
};
export type OpenAIResponseSseEventDto = OpenAIResponseOutputTextDeltaEvent | OpenAIResponseReasoningSummaryTextDeltaEvent | OpenAIResponseCompletedEvent | OpenAIResponseErrorEvent | OpenAIResponseFailedEvent | {
    type: string;
};
export declare class OpenAIProvider extends AIProvider {
    protected readonly providerName = "OpenAI";
    readonly defaultBaseUrl = "https://api.openai.com";
    readonly path = "/v1/responses";
    private readonly effortMap;
    buildHeaders(apiKey: string): Record<string, string>;
    buildPayload(messages: ChatMessageDto[], model: string, opts: ChatRequestOpts, stream: boolean): OpenAIResponsesApiRequestDto;
    parseNonStreamingResponse(json: ProviderResponseDto): ChatResponseDto;
    protected parseProviderStreamChunk(json: ProviderStreamEventDto): ChatStreamPieceDto | null;
    private convertMessagesToInput;
    private isResponsesApiEvent;
    private isResponsesApiResponse;
}
export {};
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