import { OpenAI } from 'openai';

type OpenAIChatCompletionResponseType = OpenAI.Chat.Completions.ChatCompletion & {
    _request_id?: string | null;
};
type ValidateHumanReadableCronExpressionPromptReturnType = {
    isValid: boolean;
    reason: string;
    _completion: OpenAIChatCompletionResponseType;
};
/**
 * Validates if a human-readable prompt is related to generating cron expressions or scheduling tasks
 * @param openai - The OpenAI client
 * @param prompt - The human-readable prompt
 * @returns The validation result
 */
declare function validateHumanReadableCronExpressionPrompt(openai: OpenAI, prompt: string): Promise<HumanReadableToCronExpressionReturnType>;
type HumanReadableToCronExpressionReturnType = {
    cronExpression: string;
    _completion: OpenAIChatCompletionResponseType;
};
/**
 * Generates a cron expression from a human-readable prompt
 * @param openai - The OpenAI client
 * @param prompt - The human-readable prompt
 * @returns The cron expression
 */
declare function humanReadableToCronExpression(openai: OpenAI, prompt: string): Promise<HumanReadableToCronExpressionReturnType>;

type HumanReadableToLookbackMinutesReturnType = {
    minutes: number;
    _raw?: string;
};
/**
 * Lightweight local parser for common patterns: "X minutes/hours/days"
 */
declare function parseLookbackToMinutesLocal(text: string): number | null;
/**
 * Uses OpenAI to convert a human prompt like "last 6 hours" into minutes
 */
declare function humanReadableToLookbackMinutes(openai: OpenAI, prompt: string): Promise<HumanReadableToLookbackMinutesReturnType>;

export { HumanReadableToCronExpressionReturnType, HumanReadableToLookbackMinutesReturnType, ValidateHumanReadableCronExpressionPromptReturnType, humanReadableToCronExpression, humanReadableToLookbackMinutes, parseLookbackToMinutesLocal, validateHumanReadableCronExpressionPrompt };