/*!
 * Jodit Editor (https://xdsoft.net/jodit/)
 * License GNU General Public License version 2 or later;
 * Copyright 2013-2019 Valeriy Chupurnov https://xdsoft.net
 */

import { IDictionary } from './types';

export const INVISIBLE_SPACE = '\uFEFF';
export const INVISIBLE_SPACE_REG_EXP = /[\uFEFF]/g;
export const INVISIBLE_SPACE_REG_EXP_END = /[\uFEFF]+$/g;
export const INVISIBLE_SPACE_REG_EXP_START = /^[\uFEFF]+/g;

export const SPACE_REG_EXP = /[\s\n\t\r\uFEFF\u200b]+/g;
export const SPACE_REG_EXP_START = /^[\s\n\t\r\uFEFF\u200b]+/g;
export const SPACE_REG_EXP_END = /[\s\n\t\r\uFEFF\u200b]+$/g;

export const IS_BLOCK = /^(PRE|DIV|P|LI|H[1-6]|BLOCKQUOTE|TD|TH|TABLE|BODY|HTML|FIGCAPTION|FIGURE)$/i;
export const IS_INLINE = /^(STRONG|SPAN|I|EM|B|SUP|SUB)$/;
export const MAY_BE_REMOVED_WITH_KEY = /^(IMG|BR|IFRAME|SCRIPT|INPUT|TEXTAREA|HR|JODIT|JODIT-MEDIA)$/;

export const KEY_BACKSPACE = 8;
export const KEY_TAB = 9;
export const KEY_ENTER = 13;
export const KEY_ESC = 27;

export const KEY_LEFT = 37;
export const KEY_UP = 38;
export const KEY_RIGHT = 39;
export const KEY_DOWN = 40;

export const KEY_DELETE = 46;

export const KEY_F = 70;
export const KEY_R = 82;
export const KEY_H = 72;
export const KEY_Y = 89;
export const KEY_V = 86;
export const KEY_Z = 90;

export const KEY_F3 = 114;
// export const KEY_CTRL       = 17;

export const NEARBY = 5;
export const ACCURACY = 10;

export const COMMAND_KEYS = [
    KEY_BACKSPACE,
    KEY_DELETE,
    KEY_UP,
    KEY_DOWN,
    KEY_RIGHT,
    KEY_LEFT,
    KEY_ENTER,
    KEY_ESC,
    KEY_F3,
    KEY_TAB,
];

export const BR = 'br';
export const PARAGRAPH = 'p';

/**
 * @property {int} MODE_WYSIWYG=1 WYSIWYG editor mode
 */
export const MODE_WYSIWYG = 1;

/**
 * @property {int} MODE_SOURCE=2 html editor mode
 */
export const MODE_SOURCE = 2;

/**
 * @property {int} MODE_SPLIT=3  Source code editor and HTML editor both like
 * {@link http://getuikit.com/docs/htmleditor.html|this}
 */
export const MODE_SPLIT = 3;

/**
 * @property {boolean} Is Internet Explorer
 */
export const IS_IE =
    typeof navigator !== 'undefined' &&
    (navigator.userAgent.indexOf('MSIE') !== -1 ||
        /rv:11.0/i.test(navigator.userAgent));
/**
 * @property {string} TEXT_PLAIN='text/plain'  For IE11 it will be 'text'. Need for dataTransfer.setData
 */
export const URL_LIST = IS_IE ? 'url' : 'text/uri-list';
export const TEXT_PLAIN = IS_IE ? 'text' : 'text/plain';
export const TEXT_HTML = IS_IE ? 'text' : 'text/html';

export const MARKER_CLASS = 'jodit_selection_marker';

export const EMULATE_DBLCLICK_TIMEOUT = 300;

export const JODIT_SELECTED_CELL_MARKER = 'data-jodit-selected-cell';

export const INSERT_AS_HTML = 'insert_as_html';
export const INSERT_CLEAR_HTML = 'insert_clear_html';
export const INSERT_AS_TEXT = 'insert_as_text';
export const INSERT_ONLY_TEXT = 'insert_only_text';

export const IS_MAC =
    typeof window !== 'undefined' &&
    /Mac|iPod|iPhone|iPad/.test(window.navigator.platform);

export const KEY_ALIASES: IDictionary<string> = {
    add: '+',
    break: 'pause',
    cmd: 'meta',
    command: 'meta',
    ctl: 'control',
    ctrl: 'control',
    del: 'delete',
    down: 'arrowdown',
    esc: 'escape',
    ins: 'insert',
    left: 'arrowleft',
    mod: IS_MAC ? 'meta' : 'control',
    opt: 'alt',
    option: 'alt',
    return: 'enter',
    right: 'arrowright',
    space: ' ',
    spacebar: ' ',
    up: 'arrowup',
    win: 'meta',
    windows: 'meta',
};