import { LicenseUse } from "../trail/license-use";
import { TitleTag } from "../trail/title-tag";
import { Bullet } from "./bullet";
import { Config } from "../config";
import { Terms } from "./screens/terms/terms";
/**
 * An Offer represents the Terms and Conditions for a particular offer. Acceptance of an offer by a user
 * always results in creation a new {@link Trail.License.LicenseRecord}.
 */
export declare class Offer {
    private readonly _id;
    private readonly _config;
    /**
     * @hidden
     */
    _ptr?: string;
    /**
     * @hidden
     */
    _description?: string;
    /**
     * @hidden
     */
    _terms?: Terms;
    /**
     * @hidden
     */
    _reward?: string;
    /**
     * @hidden
     */
    _bullets?: Array<Bullet>;
    /**
     * @hidden
     */
    _uses?: Array<LicenseUse>;
    /**
     * @hidden
     */
    _tags?: Array<TitleTag>;
    /**
     * @hidden
     */
    _expiry?: Date;
    /**
     * Create a new Offer object
     *
     * @param config - The optional {@link Config} object to attach this Offer to. Required for {@link add}.
     */
    constructor(config?: Config);
    /**
     * An identifier for this Offer.
     *
     * Auto-created on construction using the current time in milliseconds since the epoch.
     */
    get id(): string;
    /**
     * The pointer record for the {@link Trail.Title.TitleRecord} to which this Offer applies.
     *
     * This property is used to create or find the TitleRecord for which the Offer applies.
     */
    ptr(val: string): Offer;
    /**
     * A brief description of the Offer.
     *
     * This property is used to inform the user about the Offer, and is also used as the description for
     * the {@link Trail.License.LicenseRecord} associated with this Offer.
     *
     * @param val - the Offer description
     */
    description(val: string): Offer;
    /**
     * The legal Terms & Conditions of the Offer
     *
     * @param src - A **link** (e.g. `'./terms.md'` ) to a markdown file containing the Terms or the HTML source text.
     * @param isHtml - Whether the 'src` parameter is a URL (false) or an HTML source text (true). Defaults to false.
     *
     * The specified Terms & Conditions are permanently recorded in the {@link Trail.License.LicenseRecord}. Supports **basic
     * markdown** syntax for speed and package size minimization.
     *
     * ```
     * Heading:
     * # foo
     * ## foo
     * ### foo
     *
     * Images:
     * ![image alt text](/images/picture.jpg)
     * ![image alt text](/images/picture.jpg "image title text")
     *
     * Links:
     * [link text](http://github.com)
     * [open link in new window](+http://github.com)
     * [link with title](http://github.com "title text")
     *
     * Bold/Italic/Strikeout:
     * __bold__, **bold**
     * _italic_, *italic*
     * ~~strikeout text~~
     *
     * Horizontal Rules:
     * ---
     *  - - - -
     *    -- -- -- -- --
     * ------------------------
     *
     * Lists:
     *  * unordered list
     *  1. ordered list
     *
     * Code:
     *    // Four spaces indented text
     *     var count = 1000;
     *     while (--count) {
     *         console.log('Wow %d!', count);
     *     }
     * ```
     */
    terms(src: string, isHtml?: boolean): Offer;
    /**
     * The Image that represents the Offer.
     *
     * This property is used to display a graphical representation of the Offer. For best results, it is recommended to
     * provide an image with at least 300 x 86 resolution (150:43).
     *
     * @param src -  A **link** (e.g. `'./reward.png'` ) to the image.
     */
    reward(src: string): Offer;
    /**
     * Add a {@link UI.Bullet} to the array of bullets objects describing how the data will or will not be
     * used.
     *
     * Each bullet provides a {@link UI.Bullet.text} description and a {@link UI.Bullet.isUsed} flag declaring if
     * this is how the data will or will NOT be used.
     *
     * **UI ONLY*: not persisted within a Title or License Record
     *
     * @param val - The Bullet to add
     */
    bullet(val: Bullet): Offer;
    /**
     * Add a {@link Trail.License.LicenseUse} to the list of uses for the Offer.
     *
     * Each use includes a list of {@link Trail.License.LicenseUse.usecases} explicitly declaring how the data will be used. This differs
     * from {@link bullet}, in that uses are stored permanently within {@link Trail.License.LicenseRecord}s and searchable via TIKI's
     * API.
     *
     * Uses may optionally include a list of {@link Trail.License.LicenseUse.destinations} explicitly declaring where the data may
     * be used/reside. Supports ECMAScript Regex (**make sure you escape your tokens!**) (e.g. `'\\.mytiki\\.com'`)
     *
     * @param val - The LicenseUse to add
     */
    use(val: LicenseUse): Offer;
    /**
     * Adds a {@link Trail.Title.TitleTag} to the list of tags for this Offer.
     *
     * Tags describe the type of data for the Offer and are persisted in the {@link Trail.Title.TitleRecord}. Tags improve
     * performance and simplify API searchability and license enforcement.
     *
     * @param val - The TitleTag to add
     */
    tag(val: TitleTag): Offer;
    /**
     * Determines when the resulting license ({@link Trail.License.LicenseRecord}) expires (assuming the user accepts the Offer).
     *
     * This method calculates the {@link Trail.License.LicenseRecord.expiry} date by adding the specified number of seconds
     * to the current date.
     *
     * @param seconds - The number of seconds to add to the current date.
     */
    duration(seconds: number): Offer;
    /**
     *  Adds this offer to the parent {@link Config} object.
     */
    add(): Config;
}