// @ts-nocheck
//This copy-and-pasted from lexical here here: https://github.com/facebook/lexical/blob/c2ceee223f46543d12c574e62155e619f9a18a5d/packages/lexical/src/LexicalConstants.ts

import type { ElementFormatType, TextFormatType } from "@payloadcms/richtext-lexical/lexical";
import type { TextDetailType, TextModeType } from "lexical/nodes/LexicalTextNode";

/**
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 */

// DOM
export const DOM_ELEMENT_TYPE = 1;
export const DOM_TEXT_TYPE = 3;

// Reconciling
export const NO_DIRTY_NODES = 0;
export const HAS_DIRTY_NODES = 1;
export const FULL_RECONCILE = 2;

// Text node modes
export const IS_NORMAL = 0;
export const IS_TOKEN = 1;
export const IS_SEGMENTED = 2;
// IS_INERT = 3

// Text node formatting
export const IS_BOLD = 1;
export const IS_ITALIC = 1 << 1;
export const IS_STRIKETHROUGH = 1 << 2;
export const IS_UNDERLINE = 1 << 3;
export const IS_CODE = 1 << 4;
export const IS_SUBSCRIPT = 1 << 5;
export const IS_SUPERSCRIPT = 1 << 6;
export const IS_HIGHLIGHT = 1 << 7;

export const IS_ALL_FORMATTING =
  IS_BOLD | IS_ITALIC | IS_STRIKETHROUGH | IS_UNDERLINE | IS_CODE | IS_SUBSCRIPT | IS_SUPERSCRIPT | IS_HIGHLIGHT;

// Text node details
export const IS_DIRECTIONLESS = 1;
export const IS_UNMERGEABLE = 1 << 1;

// Element node formatting
export const IS_ALIGN_LEFT = 1;
export const IS_ALIGN_CENTER = 2;
export const IS_ALIGN_RIGHT = 3;
export const IS_ALIGN_JUSTIFY = 4;
export const IS_ALIGN_START = 5;
export const IS_ALIGN_END = 6;

// Reconciliation
export const NON_BREAKING_SPACE = "\u00A0";
// const ZERO_WIDTH_SPACE = '\u200b'

export const DOUBLE_LINE_BREAK = "\n\n";

// For FF, we need to use a non-breaking space, or it gets composition
// in a stuck state.

const RTL = "\u0591-\u07FF\uFB1D-\uFDFD\uFE70-\uFEFC";
const LTR =
  "A-Za-z\u00C0-\u00D6\u00D8-\u00F6" +
  "\u00F8-\u02B8\u0300-\u0590\u0800-\u1FFF\u200E\u2C00-\uFB1C" +
  "\uFE00-\uFE6F\uFEFD-\uFFFF";

export const RTL_REGEX = new RegExp("^[^" + LTR + "]*[" + RTL + "]");

export const LTR_REGEX = new RegExp("^[^" + RTL + "]*[" + LTR + "]");

export const TEXT_TYPE_TO_FORMAT: Record<string | TextFormatType, number> = {
  bold: IS_BOLD,
  code: IS_CODE,
  highlight: IS_HIGHLIGHT,
  italic: IS_ITALIC,
  strikethrough: IS_STRIKETHROUGH,
  subscript: IS_SUBSCRIPT,
  superscript: IS_SUPERSCRIPT,
  underline: IS_UNDERLINE,
};

export const DETAIL_TYPE_TO_DETAIL: Record<string | TextDetailType, number> = {
  directionless: IS_DIRECTIONLESS,
  unmergeable: IS_UNMERGEABLE,
};

export const ELEMENT_TYPE_TO_FORMAT: Record<Exclude<ElementFormatType, "">, number> = {
  center: IS_ALIGN_CENTER,
  end: IS_ALIGN_END,
  justify: IS_ALIGN_JUSTIFY,
  left: IS_ALIGN_LEFT,
  right: IS_ALIGN_RIGHT,
  start: IS_ALIGN_START,
};

export const ELEMENT_FORMAT_TO_TYPE: Record<number, ElementFormatType> = {
  [IS_ALIGN_CENTER]: "center",
  [IS_ALIGN_END]: "end",
  [IS_ALIGN_JUSTIFY]: "justify",
  [IS_ALIGN_LEFT]: "left",
  [IS_ALIGN_RIGHT]: "right",
  [IS_ALIGN_START]: "start",
};

export const TEXT_MODE_TO_TYPE: Record<TextModeType, 0 | 1 | 2> = {
  normal: IS_NORMAL,
  segmented: IS_SEGMENTED,
  token: IS_TOKEN,
};

export const TEXT_TYPE_TO_MODE: Record<number, TextModeType> = {
  [IS_NORMAL]: "normal",
  [IS_SEGMENTED]: "segmented",
  [IS_TOKEN]: "token",
};