import { asUrl, getStringNoLocale, getUrlAll, ThingPersisted } from '@inrupt/solid-client';

export function getTs(
  entity: ThingPersisted,
  namespace: string,
  entityTypes: {[alias: string]: string},
): string {
  const matchingEntityTypes = Object.entries(entityTypes)
    .filter(([_alias, type]) => getUrlAll(entity, 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type').some(entity => entity === type));
  const typeAliases = matchingEntityTypes.length > 0 ? matchingEntityTypes.map(([typeAlias]) => typeAlias) : ['string'];
  const comment = getStringNoLocale(entity, 'http://www.w3.org/2000/01/rdf-schema#comment');
  let formattedComment = (typeof comment === 'string') ? comment.replace(/\n/g, '\n * ') : comment;

  let identifier = asUrl(entity).substring(namespace.length);
  if (reservedKeywords.includes(identifier)) {
    formattedComment = formattedComment + `\n * Note that \`${identifier}\` is a reserved Javascript keyword, and is therefore suffixed by \`__workaround\`.`;
    formattedComment = formattedComment + '\n * For a list of reserved keywords, see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Lexical_grammar#Keywords.';
    identifier =  identifier + '__workaround';
  }

  const label = getStringNoLocale(entity, 'http://www.w3.org/2000/01/rdf-schema#label');
  const descriptionComment = label === null
    ? ''
    : `\n * ${label}\n *`;
  const commentComment = formattedComment === null
    ? ''
    : `\n * ${formattedComment}\n *`;

  return `
/**${descriptionComment}${commentComment}
 * ${asUrl(entity)}
 */
export const ${identifier} = '${asUrl(entity)}' satisfies ${typeAliases.join(' | ')};
`;
}

const reservedKeywords = [
  // Source: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Lexical_grammar#Keywords
  'break',
  'case',
  'catch',
  'class',
  'const',
  'continue',
  'debugger',
  'default',
  'delete',
  'do',
  'else',
  'export',
  'extends',
  'finally',
  'for',
  'function',
  'if',
  'import',
  'in',
  'instanceof',
  'new',
  'return',
  'super',
  'switch',
  'this',
  'throw',
  'try',
  'typeof',
  'var',
  'void',
  'while',
  'with',
  'yield',
  // Source: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects
  'Infinity',
  'NaN',
  'undefined',
  'globalThis',
  'eval',
  'uneval',
  'isFinite',
  'isNaN',
  'parseFloat',
  'parseInt',
  'encodeURI',
  'encodeURIComponent',
  'decodeURI',
  'decodeURIComponent',
  'escape',
  'unescape',
  'Object',
  'Function',
  'Boolean',
  'Symbol',
  'Error',
  'AggregateError',
  'EvalError',
  'InternalError',
  'RangeError',
  'ReferenceError',
  'SyntaxError',
  'TypeError',
  'URIError',
  'Number',
  'BigInt',
  'Math',
  'Date',
  'String',
  'RegExp',
  'Array',
  'Int8Array',
  'Uint8Array',
  'Uint8ClampedArray',
  'Int16Array',
  'Uint16Array',
  'Int32Array',
  'Uint32Array',
  'Float32Array',
  'Float64Array',
  'BigInt64Array',
  'BigUint64Array',
  'Map',
  'Set',
  'WeakMap',
  'WeakSet',
  'ArrayBuffer',
  'SharedArrayBuffer',
  'Atomics',
  'DataView',
  'JSON',
  'Promise',
  'Generator',
  'GeneratorFunction',
  'AsyncFunction',
  'Reflect',
  'Proxy',
  'Intl',
  'Intl.Collator',
  'Intl.DateTimeFormat',
  'Intl.ListFormat',
  'Intl.NumberFormat',
  'Intl.PluralRules',
  'Intl.RelativeTimeFormat',
  'Intl.Locale',
  'WebAssembly',
  'WebAssembly.Module',
  'WebAssembly.Instance',
  'WebAssembly.Memory',
  'WebAssembly.Table',
  'WebAssembly.CompileError',
  'WebAssembly.LinkError',
  'WebAssembly.RuntimeError',
  'arguments',
];