/*---------------------------------------------------------------------------------------------
 *  Copyright (c) Microsoft Corporation. All rights reserved.
 *  Licensed under the MIT License. See License.txt in the project root for license information.
 *--------------------------------------------------------------------------------------------*/

'use strict';

import IRichLanguageConfiguration = monaco.languages.LanguageConfiguration;
import ILanguage = monaco.languages.IMonarchLanguage;

export var conf:IRichLanguageConfiguration = {
	comments: {
		lineComment: 'REM'
	},
	brackets: [['{','}'], ['[',']'], ['(',')']],
	autoClosingPairs: [
		{ open: '"', close: '"', notIn: ['string', 'comment'] },
		{ open: '{', close: '}', notIn: ['string', 'comment'] },
		{ open: '[', close: ']', notIn: ['string', 'comment'] },
		{ open: '(', close: ')', notIn: ['string', 'comment'] },
	]
	// enhancedBrackets: [
	// 		{
	// 			openTrigger: 'l',
	// 			open: /setlocal$/i,
	// 			closeComplete: 'endlocal',
	// 			matchCase: true,
	// 			closeTrigger: 'l',
	// 			close: /endlocal$/i,
	// 			tokenType: 'keyword.tag-setlocal'
	// 		}
	// 	],
};

export var language = <ILanguage> {
	defaultToken: '',
	ignoreCase: true,
	tokenPostfix: '.bat',

	brackets: [
		{ token: 'delimiter.bracket', open: '{', close: '}' },
		{ token: 'delimiter.parenthesis', open: '(', close: ')' },
		{ token: 'delimiter.square', open: '[', close: ']' }
	],

	keywords: /call|defined|echo|errorlevel|exist|for|goto|if|pause|set|shift|start|title|not|pushd|popd/,

	// we include these common regular expressions
	symbols:  /[=><!~?&|+\-*\/\^;\.,]+/,
	escapes:  /\\(?:[abfnrtv\\"']|x[0-9A-Fa-f]{1,4}|u[0-9A-Fa-f]{4}|U[0-9A-Fa-f]{8})/,

	// The main tokenizer for our languages
	tokenizer: {
		root: [

			[/^(\s*)(rem(?:\s.*|))$/, ['','comment']],

			[/(\@?)(@keywords)(?!\w)/, [{token:'keyword'}, {token:'keyword.$2'}]],

			// whitespace
			[/[ \t\r\n]+/, ''],

			// blocks
			[/setlocal(?!\w)/, 'keyword.tag-setlocal' ],
			[/endlocal(?!\w)/, 'keyword.tag-setlocal' ],

			// words
			[/[a-zA-Z_]\w*/, ''],

			// labels
			[/:\w*/, 'metatag'],

			// variables
			[/%[^%]+%/, 'variable'],
			[/%%[\w]+(?!\w)/, 'variable'],

			// punctuations
			[/[{}()\[\]]/, '@brackets'],
			[/@symbols/, 'delimiter'],

			// numbers
			[/\d*\.\d+([eE][\-+]?\d+)?/, 'number.float'],
			[/0[xX][0-9a-fA-F_]*[0-9a-fA-F]/, 'number.hex'],
			[/\d+/, 'number'],

			// punctuation: after number because of .\d floats
			[/[;,.]/, 'delimiter'],

			// strings:
			[/"/,  'string', '@string."' ],
			[/'/, 'string', '@string.\''],
		],

		string: [
			[/[^\\"'%]+/, { cases: { '@eos': {token:'string', next:'@popall'}, '@default': 'string' }}],
			[/@escapes/, 'string.escape'],
			[/\\./, 'string.escape.invalid'],
			[/%[\w ]+%/, 'variable'],
			[/%%[\w]+(?!\w)/, 'variable'],
			[/["']/,     { cases: { '$#==$S2' : { token: 'string', next: '@pop' },
							'@default': 'string' }} ],
			[/$/, 'string', '@popall']
		],

	}
};