/**
 * Task type enum.
 * 0 = Task, 1 = Project, 2 = Checklist
 */
type TaskType = 0 | 1 | 2;
/**
 * Priority enum.
 */
type Priority = 0 | 1 | 2 | 3;
/**
 * Repeat enum.
 */
type Repeat = 1 | 2 | 3 | 4;
/**
 * Action type for task actions.
 */
type ActionType = `call:${string}` | `message:${string}` | `mail:${string}` | `url:${string}` | `visit:${string}` | `google:${string}`;
/**
 * Add task payload definition.
 */
type Add = {
    /**
     * Title of the task.
     * When the supplied text is '(clipboard)', 2Do will copy the text from the clipboard (iOS 3.13+).
     */
    task?: string;
    /**
     * Type of task to create.
     * 0 = Task, 1 = Project, 2 = Checklist
     * 2Do uses Task (0) as default when not specified.
     */
    type?: TaskType;
    /**
     * Name of an existing list in app, case-insensitive.
     * Default list or the currently visible list on screen is selected if not used.
     */
    forList?: string;
    /**
     * The name of the project or checklist you wish to add this task to.
     * When using this parameter, you must also provide the name of the List this project belongs to.
     */
    forParentName?: string;
    /**
     * The internally used, unique identifier of a parent task.
     * If supplied, this task will be added as a sub-task to the parent task.
     */
    forParentTask?: string;
    /**
     * Notes for the task.
     * When the supplied text is '(clipboard)', 2Do will copy the text from the clipboard (iOS 3.13+).
     */
    note?: string;
    /**
     * Multiple lines separated by a carriage return will create a sub-task for each line.
     * When the supplied text is '(clipboard)', 2Do will copy the text from the clipboard (iOS 3.13+).
     * Presence of this property will turn the parent task into a Checklist.
     */
    subtasks?: string;
    /**
     * Priority level.
     * 0 = none, 1 = low, 2 = medium, 3 = high
     * 2Do uses none (0) as default when not specified.
     */
    priority?: Priority;
    /**
     * Whether the task is starred.
     * 0 = no, 1 = yes
     * 2Do uses no (0) as default when not specified.
     */
    starred?: 0 | 1;
    /**
     * Comma separated list of tags to assign to the task.
     * When the supplied text is '(clipboard)', 2Do will copy the text from the clipboard (iOS 3.13+).
     */
    tags?: string;
    /**
     * Comma separated list of locations to assign to the task.
     * When the supplied text is '(clipboard)', 2Do will copy the text from the clipboard (iOS 3.13+).
     */
    locations?: string;
    /**
     * Due date. Supports formats:
     * - yyyy-MM-dd: Sets the date on default due time
     * - Any number: Number of days from Today (0 = Today, 1 = Tomorrow)
     * - 'In X days/weeks/months': Number of days from Today
     * - 'Next Sunday/Monday etc': Next specific day (iOS 3.13+)
     */
    due?: string;
    /**
     * Due time. Supports formats:
     * - HH:mm (24-hour format)
     * - hh:mm am/pm (12-hour format)
     */
    dueTime?: string;
    /**
     * Start date and time. Supports formats:
     * - yyyy-MM-dd HH:mm: Sets the start date and time
     * - Any number: Number of days from Today (0 = Today, 1 = Tomorrow)
     * - 'In X days/weeks/months': Number of days from Today (iOS 3.13+)
     * - 'Next Sunday/Monday etc': Next specific day (iOS 3.13+)
     */
    start?: string;
    /**
     * Repeat frequency.
     * 1 = daily, 2 = weekly, 3 = bi-weekly, 4 = monthly
     */
    repeat?: Repeat;
    /**
     * Task action. Supports formats:
     * - call:<number>: Add a Call action
     * - message:<number>: Add a Message action
     * - mail:<email>: Add an Email action
     * - url:<url>: Add a Browse action
     * - visit:<address>: Add a Visit action
     * - google:<search term>: Add a Google action
     */
    action?: ActionType;
    /**
     * Picture attachment. Can be:
     * - 'lastphoto': Grab the most recent photo from camera roll (iOS only)
     * - Base64 encoded string: Convert to image and use as attachment
     */
    picture?: string;
    /**
     * Base64 encoded audio attachment.
     */
    audio?: string;
    /**
     * Whether to apply default due date/time settings.
     * 0 = apply defaults, 1 = ignore defaults
     * 2Do applies defaults when not specified.
     */
    ignoreDefaults?: 0 | 1;
    /**
     * Whether to save the newly created task's UID in clipboard.
     * 0 = no, 1 = yes (iOS 3.8.3+, Mac 2.2.2+)
     * 2Do does not save to clipboard when not specified.
     */
    saveInClipboard?: 0 | 1;
    /**
     * Mac only: Whether to show Quick Entry window.
     * 0 = add task without allowing edit, 1 = show Quick Entry window
     * 2Do adds task without edit when not specified.
     */
    useQuickEntry?: 0 | 1;
    /**
     * Whether to show edit screen after creating the task.
     * 0 = add task in background, 1 = show edit screen
     * 2Do adds task in background when not specified.
     */
    edit?: 0 | 1;
};
/**
 * Add a task to 2Do.
 *
 * @param payload Add task payload.
 * @returns 2Do add task URL.
 * @example
 * add({ task: 'Dinner at 8pm', due: '1' })
 * // => 'twodo://x-callback-url/add?task=Dinner%20at%208pm&due=1'
 * @example
 * add({ task: 'Title', priority: 3 })
 * // => 'twodo://x-callback-url/add?task=Title&priority=3'
 * @example
 * add({ task: 'Monthly subscription', tags: 'bill,payment' })
 * // => 'twodo://x-callback-url/add?task=Monthly%20subscription&tags=bill%2Cpayment'
 * @link https://www.2doapp.com/kb/article/url-schemes.html
 */
export declare function add(payload?: Add): string;
export {};