/**
 * @file Defines types and helper functions for tracking the lifecycle and status of AIBTC DAO proposals.
 * @packageDocumentation
 */
/**
 * Defines the input parameters required to determine the status of a DAO proposal.
 * These parameters represent key block heights and timing details in a proposal's lifecycle.
 */
export interface ProposalInputParams {
    /** The current Bitcoin block height. */
    current_btc_block: number;
    /** The Bitcoin block height at which voting is scheduled to start. */
    vote_start: number;
    /** The Bitcoin block height at which voting is scheduled to end. */
    vote_end: number;
    /** The duration (in blocks) of the delay before voting can begin after proposal creation. */
    voting_delay: number;
    /** The duration (in blocks) of the voting period. */
    voting_period: number;
    /** The Bitcoin block height at which the proposal becomes executable. */
    exec_start: number;
    /** The Bitcoin block height at which the proposal execution window closes. */
    exec_end: number;
    /** Optional flag indicating if the proposal has been successfully concluded. Defaults to false. */
    concluded?: boolean;
}
/**
 * Verifies if the provided object conforms to the {@link ProposalInputParams} interface.
 * This is a utility function that checks for the presence and correct types of required properties.
 *
 * @param proposalInputParams - The object to be verified.
 * @returns `true` if the object is a valid `ProposalInputParams`, `false` otherwise.
 */
export declare function verifyProposalInputParams(proposalInputParams: ProposalInputParams): boolean;
/**
 * A constant array of all possible proposal statuses.
 * This defines the complete set of states a proposal can be in throughout its lifecycle.
 */
export declare const PROPOSAL_STATUSES: readonly ["created", "voting_delay", "voting_active", "veto_period", "executable", "expired", "concluded"];
/**
 * Represents the status of a DAO proposal.
 * The status is derived from the {@link PROPOSAL_STATUSES} constant array.
 *
 * @example
 * ```
 * let currentStatus: ProposalStatus = "voting_active";
 * ```
 */
export type ProposalStatus = (typeof PROPOSAL_STATUSES)[number];
/**
 * Calculates the current status of a proposal based on its timing parameters and the current block height.
 *
 * @param proposalInputParams - An object containing the proposal's timing data and the current block height.
 * @returns The calculated `ProposalStatus` for the given proposal.
 * @throws {Error} If the `proposalInputParams` object is invalid or missing required properties.
 */
export declare function getProposalStatus(proposalInputParams: ProposalInputParams): ProposalStatus;
/**
 * A type guard function to check if a given string is a valid `ProposalStatus`.
 *
 * @param status - The string to check.
 * @returns `true` if the string is a valid `ProposalStatus`, otherwise `false`.
 *
 * @example
 * ```
 * if (isProposalStatus(userInput)) {
 *   // userInput is now typed as ProposalStatus
 * }
 * ```
 */
export declare function isProposalStatus(status: string): status is ProposalStatus;