/**
 * OpenAI-Compatible API Utilities
 *
 * Shared utility functions for OpenAI API compatibility layer.
 */
import type { ExecRequest } from "../api/agent-service";
import type { OpenAIMessage, OpenAIStreamChunk } from "./types";
/**
 * Generate a unique completion ID
 */
export declare function generateCompletionId(): string;
/**
 * Convert OpenAI messages array to a prompt string for Cursor.
 * Handles the full message history including:
 * - system messages (prepended)
 * - user messages
 * - assistant messages (including those with tool_calls)
 * - tool result messages (role: "tool")
 *
 * For multi-turn conversations with tool calls, this formats the conversation
 * so the model can see what tools were called and their results.
 */
export declare function messagesToPrompt(messages: OpenAIMessage[]): string;
/**
 * Map exec request to OpenAI tool call format
 */
export declare function mapExecRequestToTool(execReq: ExecRequest): {
    toolName: string | null;
    toolArgs: Record<string, unknown> | null;
};
/**
 * Create an error response in OpenAI format
 */
export declare function createErrorResponse(message: string, type?: string, status?: number): Response;
/**
 * Create an SSE chunk string from data
 */
export declare function createSSEChunk(data: object): string;
/**
 * Create an SSE done signal
 */
export declare function createSSEDone(): string;
/**
 * Create a streaming SSE response
 */
export declare function makeStreamResponse(readable: ReadableStream<Uint8Array>): Response;
/**
 * Create CORS preflight response
 */
export declare function handleCORS(): Response;
/**
 * Determine model owner based on model name
 */
export declare function getModelOwner(displayName: string): string;
/**
 * Create an OpenAI stream chunk
 */
export declare function createStreamChunk(completionId: string, model: string, created: number, delta: {
    role?: "assistant";
    content?: string | null;
    tool_calls?: OpenAIStreamChunk["choices"][0]["delta"]["tool_calls"];
}, finishReason?: "stop" | "length" | "content_filter" | "tool_calls" | null): OpenAIStreamChunk;
/**
 * Generate a tool call ID from completion ID and index
 */
export declare function generateToolCallId(completionId: string, index: number): string;