utils.ts

import {
  ClassDeclaration,
  createNodeArray,
  Decorator,
  Expression,
  ExpressionWithTypeArguments,
  getLineAndCharacterOfPosition,
  isCallExpression,
  isClassDeclaration,
  isIdentifier,
  isNoSubstitutionTemplateLiteral,
  isObjectLiteralExpression,
  isPropertyAccessExpression,
  isPropertyAssignment,
  isStringLiteral,
  Node,
  NodeArray,
  NoSubstitutionTemplateLiteral,
  ObjectLiteralExpression,
  SourceFile,
  StringLiteral,
  BooleanLiteral,
  SyntaxKind
} from 'typescript';
import { getDeclaredMethods } from './classDeclarationUtils';

export enum Decorators {
  ContentChild = 'ContentChild',
  ContentChildren = 'ContentChildren',
  HostBinding = 'HostBinding',
  HostListener = 'HostListener',
  Input = 'Input',
  Output = 'Output',
  ViewChild = 'ViewChild',
  ViewChildren = 'ViewChildren'
}

export enum LifecycleInterfaces {
  AfterContentChecked = 'AfterContentChecked',
  AfterContentInit = 'AfterContentInit',
  AfterViewChecked = 'AfterViewChecked',
  AfterViewInit = 'AfterViewInit',
  OnChanges = 'OnChanges',
  OnDestroy = 'OnDestroy',
  OnInit = 'OnInit',
  DoCheck = 'DoCheck'
}

export enum LifecycleMethods {
  ngAfterContentChecked = 'ngAfterContentChecked',
  ngAfterContentInit = 'ngAfterContentInit',
  ngAfterViewChecked = 'ngAfterViewChecked',
  ngAfterViewInit = 'ngAfterViewInit',
  ngOnChanges = 'ngOnChanges',
  ngOnDestroy = 'ngOnDestroy',
  ngOnInit = 'ngOnInit',
  ngDoCheck = 'ngDoCheck'
}

export enum MetadataTypes {
  Component = 'Component',
  Directive = 'Directive',
  Injectable = 'Injectable',
  Pipe = 'Pipe',
  NgModule = 'NgModule'
}

export type DecoratorKeys = keyof typeof Decorators;
export type LifecycleInterfaceKeys = keyof typeof LifecycleInterfaces;
export type LifecycleMethodKeys = keyof typeof LifecycleMethods;
export type MetadataTypeKeys = keyof typeof MetadataTypes;
export type MetadataTypeLifecycleMapper = Readonly<Record<MetadataTypes, typeof LIFECYCLE_METHODS>>;
export type MetadataTypeDecoratorMapper = Readonly<Record<MetadataTypes, typeof DECORATORS>>;

export const decoratorKeys = Object.keys(Decorators) as ReadonlyArray<DecoratorKeys>;
export const lifecycleInterfaceKeys = Object.keys(LifecycleInterfaces) as ReadonlyArray<LifecycleInterfaceKeys>;
export const lifecycleMethodKeys = Object.keys(LifecycleMethods) as ReadonlyArray<LifecycleMethodKeys>;
export const metadataTypeKeys = Object.keys(MetadataTypes) as ReadonlyArray<MetadataTypeKeys>;

export const DECORATORS: ReadonlySet<DecoratorKeys> = new Set(decoratorKeys);
export const LIFECYCLE_INTERFACES: ReadonlySet<LifecycleInterfaceKeys> = new Set(lifecycleInterfaceKeys);
export const LIFECYCLE_METHODS: ReadonlySet<LifecycleMethodKeys> = new Set(lifecycleMethodKeys);
export const METADATA_TYPES: ReadonlySet<MetadataTypeKeys> = new Set(metadataTypeKeys);
export const METADATA_TYPE_DECORATOR_MAPPER: MetadataTypeDecoratorMapper = {
  Component: DECORATORS,
  Directive: DECORATORS,
  Injectable: new Set<DecoratorKeys>([]),
  Pipe: new Set<DecoratorKeys>([]),
  NgModule: new Set<DecoratorKeys>([])
};
export const METADATA_TYPE_LIFECYCLE_MAPPER: MetadataTypeLifecycleMapper = {
  Component: LIFECYCLE_METHODS,
  Directive: LIFECYCLE_METHODS,
  Injectable: new Set<LifecycleMethodKeys>([LifecycleMethods.ngOnDestroy]),
  Pipe: new Set<LifecycleMethodKeys>([LifecycleMethods.ngOnDestroy]),
  NgModule: new Set<LifecycleMethodKeys>([])
};

export const getClassName = (node: Node): string | undefined => {
  const klass = getNextToLastParentNode(node);

  return isClassDeclaration(klass) && klass.name ? klass.name.text : undefined;
};

export const getDecorator = (node: ClassDeclaration, decoratorName: string): Decorator | undefined =>
  createNodeArray(node.decorators).find(
    decorator =>
      isCallExpression(decorator.expression) &&
      decorator.expression.arguments &&
      decorator.expression.arguments.length > 0 &&
      getDecoratorName(decorator) === decoratorName
  );

export const getDecoratorArgument = (decorator: Decorator): ObjectLiteralExpression | undefined => {
  const { expression } = decorator;

  if (!isCallExpression(expression) || !expression.arguments || expression.arguments.length === 0) {
    return undefined;
  }

  const args = expression.arguments[0];

  return isObjectLiteralExpression(args) && args.properties ? args : undefined;
};

export const getDecoratorPropertyInitializer = (decorator: Decorator, name: string): Expression | undefined => {
  const args = getDecoratorArgument(decorator);

  if (!args || !isObjectLiteralExpression(args)) return undefined;

  const properties = createNodeArray(args.properties);
  const property = properties.find(prop => !!(prop.name && isIdentifier(prop.name) && prop.name.text === name));

  if (!property || !isPropertyAssignment(property)) return undefined;

  return property.initializer;
};

export const getDecoratorName = (decorator: Decorator): string | undefined =>
  isCallExpression(decorator.expression) && isIdentifier(decorator.expression.expression)
    ? decorator.expression.expression.text
    : undefined;

export const getNextToLastParentNode = (node: Node): Node => {
  let currentNode = node;

  while (currentNode.parent && currentNode.parent.parent) {
    currentNode = currentNode.parent;
  }

  return currentNode;
};

export const getComponentDecorator = (node: ClassDeclaration): Decorator | undefined => getDecorator(node, 'Component');

export const getDirectiveDecorator = (node: ClassDeclaration): Decorator | undefined => getDecorator(node, 'Directive');

export const getInjectableDecorator = (node: ClassDeclaration): Decorator | undefined => getDecorator(node, 'Injectable');

export const getNgModuleDecorator = (node: ClassDeclaration): Decorator | undefined => getDecorator(node, 'NgModule');

export const getPipeDecorator = (node: ClassDeclaration): Decorator | undefined => getDecorator(node, 'Pipe');

export const getSymbolName = (expression: ExpressionWithTypeArguments): string => {
  const { expression: childExpression } = expression;

  return isPropertyAccessExpression(childExpression) ? childExpression.name.getText() : childExpression.getText();
};

export const isNgDecorator = (value: string): value is DecoratorKeys => DECORATORS.has(value as DecoratorKeys);

export const isLifecycleInterface = (value: string): value is LifecycleInterfaceKeys =>
  LIFECYCLE_INTERFACES.has(value as LifecycleInterfaceKeys);

export const isLifecycleMethod = (value: string): value is LifecycleMethodKeys => LIFECYCLE_METHODS.has(value as LifecycleMethodKeys);

export const isMetadataType = (value: string): value is MetadataTypes => METADATA_TYPES.has(value as MetadataTypes);

export const getDeclaredInterfaces = (node: ClassDeclaration): NodeArray<ExpressionWithTypeArguments> => {
  const heritageClause = createNodeArray(node.heritageClauses).find(h => h.token === SyntaxKind.ImplementsKeyword);

  return heritageClause ? heritageClause.types : createNodeArray([]);
};

export const getDeclaredInterfaceNames = (node: ClassDeclaration): string[] => getDeclaredInterfaces(node).map(getSymbolName);

export const getDeclaredInterfaceName = (node: ClassDeclaration, value: string): string | undefined =>
  getDeclaredInterfaceNames(node).find(interfaceName => interfaceName === value);

export const getDeclaredLifecycleInterfaces = (node: ClassDeclaration): ReadonlyArray<LifecycleInterfaceKeys> =>
  getDeclaredInterfaceNames(node).filter(isLifecycleInterface) as ReadonlyArray<LifecycleInterfaceKeys>;

export const getLifecycleInterfaceByMethodName = (methodName: LifecycleMethodKeys): LifecycleInterfaceKeys =>
  methodName.slice(2) as LifecycleInterfaceKeys;

export const getDeclaredLifecycleMethods = (node: ClassDeclaration): ReadonlyArray<LifecycleMethodKeys> =>
  getDeclaredMethods(node)
    .map(m => m.name.getText())
    .filter(isLifecycleMethod) as ReadonlyArray<LifecycleMethodKeys>;

export const kebabToCamelCase = (value: string) => value.replace(/-[a-zA-Z]/g, x => x[1].toUpperCase());

export const isSameLine = (sourceFile: SourceFile, pos1: number, pos2: number): boolean =>
  getLineAndCharacterOfPosition(sourceFile, pos1).line === getLineAndCharacterOfPosition(sourceFile, pos2).line;

export const isStringLiteralLike = (node: Node): node is StringLiteral | NoSubstitutionTemplateLiteral =>
  isStringLiteral(node) || isNoSubstitutionTemplateLiteral(node);

export const isBooleanLiteralLike = (node: Node): node is BooleanLiteral =>
  node.kind === SyntaxKind.FalseKeyword || node.kind === SyntaxKind.TrueKeyword;

export const maybeNodeArray = <T extends Node>(nodes: NodeArray<T>): ReadonlyArray<T> => nodes || [];

// Regex below matches any Unicode word and compatible with ES5. In ES2018 the same result
// can be achieved by using /\p{L}\S*/gu and also known as Unicode Property Escapes
// (http://2ality.com/2017/07/regexp-unicode-property-escapes.html). Since there is no
// transpilation of this functionality down to ES5 without external tool, the only solution is
// to use already transpiled form. Example can be found here -
// https://mothereff.in/regexpu#input=var+regex+%3D+/%5Cp%7BL%7D/u%3B&unicodePropertyEscape=1
const unicodeWordMatch = /(?:[A-Za-z\xAA\xB5\xBA\xC0-\xD6\xD8-\xF6\xF8-\u02C1\u02C6-\u02D1\u02E0-\u02E4\u02EC\u02EE\u0370-\u0374\u0376\u0377\u037A-\u037D\u037F\u0386\u0388-\u038A\u038C\u038E-\u03A1\u03A3-\u03F5\u03F7-\u0481\u048A-\u052F\u0531-\u0556\u0559\u0561-\u0587\u05D0-\u05EA\u05F0-\u05F2\u0620-\u064A\u066E\u066F\u0671-\u06D3\u06D5\u06E5\u06E6\u06EE\u06EF\u06FA-\u06FC\u06FF\u0710\u0712-\u072F\u074D-\u07A5\u07B1\u07CA-\u07EA\u07F4\u07F5\u07FA\u0800-\u0815\u081A\u0824\u0828\u0840-\u0858\u0860-\u086A\u08A0-\u08B4\u08B6-\u08BD\u0904-\u0939\u093D\u0950\u0958-\u0961\u0971-\u0980\u0985-\u098C\u098F\u0990\u0993-\u09A8\u09AA-\u09B0\u09B2\u09B6-\u09B9\u09BD\u09CE\u09DC\u09DD\u09DF-\u09E1\u09F0\u09F1\u09FC\u0A05-\u0A0A\u0A0F\u0A10\u0A13-\u0A28\u0A2A-\u0A30\u0A32\u0A33\u0A35\u0A36\u0A38\u0A39\u0A59-\u0A5C\u0A5E\u0A72-\u0A74\u0A85-\u0A8D\u0A8F-\u0A91\u0A93-\u0AA8\u0AAA-\u0AB0\u0AB2\u0AB3\u0AB5-\u0AB9\u0ABD\u0AD0\u0AE0\u0AE1\u0AF9\u0B05-\u0B0C\u0B0F\u0B10\u0B13-\u0B28\u0B2A-\u0B30\u0B32\u0B33\u0B35-\u0B39\u0B3D\u0B5C\u0B5D\u0B5F-\u0B61\u0B71\u0B83\u0B85-\u0B8A\u0B8E-\u0B90\u0B92-\u0B95\u0B99\u0B9A\u0B9C\u0B9E\u0B9F\u0BA3\u0BA4\u0BA8-\u0BAA\u0BAE-\u0BB9\u0BD0\u0C05-\u0C0C\u0C0E-\u0C10\u0C12-\u0C28\u0C2A-\u0C39\u0C3D\u0C58-\u0C5A\u0C60\u0C61\u0C80\u0C85-\u0C8C\u0C8E-\u0C90\u0C92-\u0CA8\u0CAA-\u0CB3\u0CB5-\u0CB9\u0CBD\u0CDE\u0CE0\u0CE1\u0CF1\u0CF2\u0D05-\u0D0C\u0D0E-\u0D10\u0D12-\u0D3A\u0D3D\u0D4E\u0D54-\u0D56\u0D5F-\u0D61\u0D7A-\u0D7F\u0D85-\u0D96\u0D9A-\u0DB1\u0DB3-\u0DBB\u0DBD\u0DC0-\u0DC6\u0E01-\u0E30\u0E32\u0E33\u0E40-\u0E46\u0E81\u0E82\u0E84\u0E87\u0E88\u0E8A\u0E8D\u0E94-\u0E97\u0E99-\u0E9F\u0EA1-\u0EA3\u0EA5\u0EA7\u0EAA\u0EAB\u0EAD-\u0EB0\u0EB2\u0EB3\u0EBD\u0EC0-\u0EC4\u0EC6\u0EDC-\u0EDF\u0F00\u0F40-\u0F47\u0F49-\u0F6C\u0F88-\u0F8C\u1000-\u102A\u103F\u1050-\u1055\u105A-\u105D\u1061\u1065\u1066\u106E-\u1070\u1075-\u1081\u108E\u10A0-\u10C5\u10C7\u10CD\u10D0-\u10FA\u10FC-\u1248\u124A-\u124D\u1250-\u1256\u1258\u125A-\u125D\u1260-\u1288\u128A-\u128D\u1290-\u12B0\u12B2-\u12B5\u12B8-\u12BE\u12C0\u12C2-\u12C5\u12C8-\u12D6\u12D8-\u1310\u1312-\u1315\u1318-\u135A\u1380-\u138F\u13A0-\u13F5\u13F8-\u13FD\u1401-\u166C\u166F-\u167F\u1681-\u169A\u16A0-\u16EA\u16F1-\u16F8\u1700-\u170C\u170E-\u1711\u1720-\u1731\u1740-\u1751\u1760-\u176C\u176E-\u1770\u1780-\u17B3\u17D7\u17DC\u1820-\u1877\u1880-\u1884\u1887-\u18A8\u18AA\u18B0-\u18F5\u1900-\u191E\u1950-\u196D\u1970-\u1974\u1980-\u19AB\u19B0-\u19C9\u1A00-\u1A16\u1A20-\u1A54\u1AA7\u1B05-\u1B33\u1B45-\u1B4B\u1B83-\u1BA0\u1BAE\u1BAF\u1BBA-\u1BE5\u1C00-\u1C23\u1C4D-\u1C4F\u1C5A-\u1C7D\u1C80-\u1C88\u1CE9-\u1CEC\u1CEE-\u1CF1\u1CF5\u1CF6\u1D00-\u1DBF\u1E00-\u1F15\u1F18-\u1F1D\u1F20-\u1F45\u1F48-\u1F4D\u1F50-\u1F57\u1F59\u1F5B\u1F5D\u1F5F-\u1F7D\u1F80-\u1FB4\u1FB6-\u1FBC\u1FBE\u1FC2-\u1FC4\u1FC6-\u1FCC\u1FD0-\u1FD3\u1FD6-\u1FDB\u1FE0-\u1FEC\u1FF2-\u1FF4\u1FF6-\u1FFC\u2071\u207F\u2090-\u209C\u2102\u2107\u210A-\u2113\u2115\u2119-\u211D\u2124\u2126\u2128\u212A-\u212D\u212F-\u2139\u213C-\u213F\u2145-\u2149\u214E\u2183\u2184\u2C00-\u2C2E\u2C30-\u2C5E\u2C60-\u2CE4\u2CEB-\u2CEE\u2CF2\u2CF3\u2D00-\u2D25\u2D27\u2D2D\u2D30-\u2D67\u2D6F\u2D80-\u2D96\u2DA0-\u2DA6\u2DA8-\u2DAE\u2DB0-\u2DB6\u2DB8-\u2DBE\u2DC0-\u2DC6\u2DC8-\u2DCE\u2DD0-\u2DD6\u2DD8-\u2DDE\u2E2F\u3005\u3006\u3031-\u3035\u303B\u303C\u3041-\u3096\u309D-\u309F\u30A1-\u30FA\u30FC-\u30FF\u3105-\u312E\u3131-\u318E\u31A0-\u31BA\u31F0-\u31FF\u3400-\u4DB5\u4E00-\u9FEA\uA000-\uA48C\uA4D0-\uA4FD\uA500-\uA60C\uA610-\uA61F\uA62A\uA62B\uA640-\uA66E\uA67F-\uA69D\uA6A0-\uA6E5\uA717-\uA71F\uA722-\uA788\uA78B-\uA7AE\uA7B0-\uA7B7\uA7F7-\uA801\uA803-\uA805\uA807-\uA80A\uA80C-\uA822\uA840-\uA873\uA882-\uA8B3\uA8F2-\uA8F7\uA8FB\uA8FD\uA90A-\uA925\uA930-\uA946\uA960-\uA97C\uA984-\uA9B2\uA9CF\uA9E0-\uA9E4\uA9E6-\uA9EF\uA9FA-\uA9FE\uAA00-\uAA28\uAA40-\uAA42\uAA44-\uAA4B\uAA60-\uAA76\uAA7A\uAA7E-\uAAAF\uAAB1\uAAB5\uAAB6\uAAB9-\uAABD\uAAC0\uAAC2\uAADB-\uAADD\uAAE0-\uAAEA\uAAF2-\uAAF4\uAB01-\uAB06\uAB09-\uAB0E\uAB11-\uAB16\uAB20-\uAB26\uAB28-\uAB2E\uAB30-\uAB5A\uAB5C-\uAB65\uAB70-\uABE2\uAC00-\uD7A3\uD7B0-\uD7C6\uD7CB-\uD7FB\uF900-\uFA6D\uFA70-\uFAD9\uFB00-\uFB06\uFB13-\uFB17\uFB1D\uFB1F-\uFB28\uFB2A-\uFB36\uFB38-\uFB3C\uFB3E\uFB40\uFB41\uFB43\uFB44\uFB46-\uFBB1\uFBD3-\uFD3D\uFD50-\uFD8F\uFD92-\uFDC7\uFDF0-\uFDFB\uFE70-\uFE74\uFE76-\uFEFC\uFF21-\uFF3A\uFF41-\uFF5A\uFF66-\uFFBE\uFFC2-\uFFC7\uFFCA-\uFFCF\uFFD2-\uFFD7\uFFDA-\uFFDC]|\uD800[\uDC00-\uDC0B\uDC0D-\uDC26\uDC28-\uDC3A\uDC3C\uDC3D\uDC3F-\uDC4D\uDC50-\uDC5D\uDC80-\uDCFA\uDE80-\uDE9C\uDEA0-\uDED0\uDF00-\uDF1F\uDF2D-\uDF40\uDF42-\uDF49\uDF50-\uDF75\uDF80-\uDF9D\uDFA0-\uDFC3\uDFC8-\uDFCF]|\uD801[\uDC00-\uDC9D\uDCB0-\uDCD3\uDCD8-\uDCFB\uDD00-\uDD27\uDD30-\uDD63\uDE00-\uDF36\uDF40-\uDF55\uDF60-\uDF67]|\uD802[\uDC00-\uDC05\uDC08\uDC0A-\uDC35\uDC37\uDC38\uDC3C\uDC3F-\uDC55\uDC60-\uDC76\uDC80-\uDC9E\uDCE0-\uDCF2\uDCF4\uDCF5\uDD00-\uDD15\uDD20-\uDD39\uDD80-\uDDB7\uDDBE\uDDBF\uDE00\uDE10-\uDE13\uDE15-\uDE17\uDE19-\uDE33\uDE60-\uDE7C\uDE80-\uDE9C\uDEC0-\uDEC7\uDEC9-\uDEE4\uDF00-\uDF35\uDF40-\uDF55\uDF60-\uDF72\uDF80-\uDF91]|\uD803[\uDC00-\uDC48\uDC80-\uDCB2\uDCC0-\uDCF2]|\uD804[\uDC03-\uDC37\uDC83-\uDCAF\uDCD0-\uDCE8\uDD03-\uDD26\uDD50-\uDD72\uDD76\uDD83-\uDDB2\uDDC1-\uDDC4\uDDDA\uDDDC\uDE00-\uDE11\uDE13-\uDE2B\uDE80-\uDE86\uDE88\uDE8A-\uDE8D\uDE8F-\uDE9D\uDE9F-\uDEA8\uDEB0-\uDEDE\uDF05-\uDF0C\uDF0F\uDF10\uDF13-\uDF28\uDF2A-\uDF30\uDF32\uDF33\uDF35-\uDF39\uDF3D\uDF50\uDF5D-\uDF61]|\uD805[\uDC00-\uDC34\uDC47-\uDC4A\uDC80-\uDCAF\uDCC4\uDCC5\uDCC7\uDD80-\uDDAE\uDDD8-\uDDDB\uDE00-\uDE2F\uDE44\uDE80-\uDEAA\uDF00-\uDF19]|\uD806[\uDCA0-\uDCDF\uDCFF\uDE00\uDE0B-\uDE32\uDE3A\uDE50\uDE5C-\uDE83\uDE86-\uDE89\uDEC0-\uDEF8]|\uD807[\uDC00-\uDC08\uDC0A-\uDC2E\uDC40\uDC72-\uDC8F\uDD00-\uDD06\uDD08\uDD09\uDD0B-\uDD30\uDD46]|\uD808[\uDC00-\uDF99]|\uD809[\uDC80-\uDD43]|[\uD80C\uD81C-\uD820\uD840-\uD868\uD86A-\uD86C\uD86F-\uD872\uD874-\uD879][\uDC00-\uDFFF]|\uD80D[\uDC00-\uDC2E]|\uD811[\uDC00-\uDE46]|\uD81A[\uDC00-\uDE38\uDE40-\uDE5E\uDED0-\uDEED\uDF00-\uDF2F\uDF40-\uDF43\uDF63-\uDF77\uDF7D-\uDF8F]|\uD81B[\uDF00-\uDF44\uDF50\uDF93-\uDF9F\uDFE0\uDFE1]|\uD821[\uDC00-\uDFEC]|\uD822[\uDC00-\uDEF2]|\uD82C[\uDC00-\uDD1E\uDD70-\uDEFB]|\uD82F[\uDC00-\uDC6A\uDC70-\uDC7C\uDC80-\uDC88\uDC90-\uDC99]|\uD835[\uDC00-\uDC54\uDC56-\uDC9C\uDC9E\uDC9F\uDCA2\uDCA5\uDCA6\uDCA9-\uDCAC\uDCAE-\uDCB9\uDCBB\uDCBD-\uDCC3\uDCC5-\uDD05\uDD07-\uDD0A\uDD0D-\uDD14\uDD16-\uDD1C\uDD1E-\uDD39\uDD3B-\uDD3E\uDD40-\uDD44\uDD46\uDD4A-\uDD50\uDD52-\uDEA5\uDEA8-\uDEC0\uDEC2-\uDEDA\uDEDC-\uDEFA\uDEFC-\uDF14\uDF16-\uDF34\uDF36-\uDF4E\uDF50-\uDF6E\uDF70-\uDF88\uDF8A-\uDFA8\uDFAA-\uDFC2\uDFC4-\uDFCB]|\uD83A[\uDC00-\uDCC4\uDD00-\uDD43]|\uD83B[\uDE00-\uDE03\uDE05-\uDE1F\uDE21\uDE22\uDE24\uDE27\uDE29-\uDE32\uDE34-\uDE37\uDE39\uDE3B\uDE42\uDE47\uDE49\uDE4B\uDE4D-\uDE4F\uDE51\uDE52\uDE54\uDE57\uDE59\uDE5B\uDE5D\uDE5F\uDE61\uDE62\uDE64\uDE67-\uDE6A\uDE6C-\uDE72\uDE74-\uDE77\uDE79-\uDE7C\uDE7E\uDE80-\uDE89\uDE8B-\uDE9B\uDEA1-\uDEA3\uDEA5-\uDEA9\uDEAB-\uDEBB]|\uD869[\uDC00-\uDED6\uDF00-\uDFFF]|\uD86D[\uDC00-\uDF34\uDF40-\uDFFF]|\uD86E[\uDC00-\uDC1D\uDC20-\uDFFF]|\uD873[\uDC00-\uDEA1\uDEB0-\uDFFF]|\uD87A[\uDC00-\uDFE0]|\uD87E[\uDC00-\uDE1D])\S*/g;

export const toTitleCase = (value: string): string =>
  value.replace(unicodeWordMatch, val => val[0].toUpperCase() + val.slice(1).toLowerCase());