import { GitHub } from "./github";
import { Component } from "../component";
import { GroupRunnerOptions } from "../runner-options";
/**
 * Options for `Stale`.
 */
export interface StaleOptions {
    /**
     * How to handle stale pull requests.
     *
     * @default - By default, pull requests with no activity will be marked as
     * stale after 14 days and closed within 2 days with relevant comments.
     */
    readonly pullRequest?: StaleBehavior;
    /**
     * How to handle stale issues.
     *
     * @default - By default, stale issues with no activity will be marked as
     * stale after 60 days and closed within 7 days.
     */
    readonly issues?: StaleBehavior;
    /**
     * Github Runner selection labels
     * @default ["ubuntu-latest"]
     * @description Defines a target Runner by labels
     * @throws {Error} if both `runsOn` and `runsOnGroup` are specified
     */
    readonly runsOn?: string[];
    /**
     * Github Runner Group selection options
     * @description Defines a target Runner Group by name and/or labels
     * @throws {Error} if both `runsOn` and `runsOnGroup` are specified
     */
    readonly runsOnGroup?: GroupRunnerOptions;
}
/**
 * Stale behavior.
 */
export interface StaleBehavior {
    /**
     * Determines if this behavior is enabled.
     *
     * Same as setting `daysBeforeStale` and `daysBeforeClose` to `-1`.
     *
     * @default true
     */
    readonly enabled?: boolean;
    /**
     * How many days until the issue or pull request is marked as "Stale". Set to -1 to disable.
     * @default -
     */
    readonly daysBeforeStale?: number;
    /**
     * Days until the issue/PR is closed after it is marked as "Stale". Set to -1 to disable.
     * @default -
     */
    readonly daysBeforeClose?: number;
    /**
     * The comment to add to the issue/PR when it becomes stale.
     * @default "This pull request is now marked as stale because hasn\'t seen activity for a while. Add a comment or it will be closed soon."
     */
    readonly staleMessage?: string;
    /**
     * The comment to add to the issue/PR when it's closed
     *
     * @default "Closing this pull request as it hasn\'t seen activity for a while. Please add a comment @mentioning a maintainer when you are ready to continue."
     */
    readonly closeMessage?: string;
    /**
     * The label to apply to the issue/PR when it becomes stale.
     * @default "stale"
     */
    readonly staleLabel?: string;
    /**
     * Label which exempt an issue/PR from becoming stale. Set to `[]` to disable.
     *
     * @default - ["backlog"]
     */
    readonly exemptLabels?: string[];
}
/**
 * Warns and then closes issues and PRs that have had no activity for a specified amount of time.
 *
 * The default configuration will:
 *
 *  * Add a "Stale" label to pull requests after 14 days and closed after 2 days
 *  * Add a "Stale" label to issues after 60 days and closed after 7 days
 *  * If a comment is added, the label will be removed and timer is restarted.
 *
 * @see https://github.com/actions/stale
 */
export declare class Stale extends Component {
    constructor(github: GitHub, options?: StaleOptions);
}