import { cLikeLexer } from './BrowserLexer.js';
import { CodeMirrorLexerMode } from './CodeMirrorLexerMode.js';

const TYPE_TO_CLASS: Record<string, string | null> =
{
  SINGLE_LINE_COMMENT:  'comment',
  MULTI_LINE_COMMENT:   'comment',
  DOUBLE_QUOTED_STRING: 'string',
  SINGLE_QUOTED_STRING: 'string',
  NUMBER:               'number',
  BOOL:                 'atom',
  NULL:                 'atom',
  LOGIC:                'keyword',
  CLASS:                'keyword',
  ACCESS_MODIFIER:      'keyword',
  C_INSTRUCTION:        'meta',
  CFUNCTION:            'variable-2',
  CWORD:                'variable',
  OPERATOR:             'operator',
  BRACKET:              'bracket',
  WHITESPACE:           null,
  BREAK:                null,
  ANY_SYMBOL:           null,
};

const CS_KEYWORDS =
[
  'abstract', 'as',       'async',      'await',     'base',      'byte',
  'catch',    'char',     'checked',    'const',     'decimal',   'default',
  'delegate', 'double',   'dynamic',    'enum',      'event',     'explicit',
  'extern',   'finally',  'fixed',      'float',     'foreach',   'get',
  'goto',     'implicit', 'in',         'int',       'interface', 'internal',
  'is',       'lock',     'long',       'nameof',    'namespace', 'new',
  'object',   'operator', 'out',        'override',  'params',    'partial',
  'readonly', 'ref',      'remove',     'sbyte',     'sealed',    'set',
  'short',    'sizeof',   'stackalloc', 'static',    'string',    'struct',
  'this',     'throw',    'try',        'typeof',    'uint',      'ulong',
  'unchecked','unsafe',   'ushort',     'using',     'value',     'var',
  'virtual',  'void',     'volatile',   'when',      'where',     'with',
  'yield',
];

export const csharpMode = new CodeMirrorLexerMode(
  cLikeLexer(),
  TYPE_TO_CLASS,
  [ { type: 'MULTI_LINE_COMMENT', start: /\/\*/, end: /\*\//, cmClass: 'comment' } ]
);

csharpMode.setKeywordSet( 'keywords', CS_KEYWORDS, 'keyword', [ 'CWORD' ] );