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 * Copyright (c) 2010, Ajax.org B.V.
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 *       notice, this list of conditions and the following disclaimer.
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 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
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define(function(require, exports, module) {

var oop = require("../lib/oop");
var TextMode = require("./text").Mode;
var Tokenizer = require("../tokenizer").Tokenizer;
var LiquidHighlightRules = require("./liquid_highlight_rules").LiquidHighlightRules;
var MatchingBraceOutdent = require("./matching_brace_outdent").MatchingBraceOutdent;
var Range = require("../range").Range;

var Mode = function() {
    this.$tokenizer = new Tokenizer(new LiquidHighlightRules().getRules());
    this.$outdent = new MatchingBraceOutdent();
};
oop.inherits(Mode, TextMode);

(function() {

    this.toggleCommentLines = function(state, doc, startRow, endRow) {
        var outdent = true;
        var outentedRows = [];
        var re = /^(\s*)#/;

        for (var i=startRow; i<= endRow; i++) {
            if (!re.test(doc.getLine(i))) {
                outdent = false;
                break;
            }
        }

        if (outdent) {
            var deleteRange = new Range(0, 0, 0, 0);
            for (var i=startRow; i<= endRow; i++)
            {
                var line = doc.getLine(i);
                var m = line.match(re);
                deleteRange.start.row = i;
                deleteRange.end.row = i;
                deleteRange.end.column = m[0].length;
                doc.replace(deleteRange, m[1]);
            }
        }
        else {
            doc.indentRows(startRow, endRow, "#");
        }
    };

    this.getNextLineIndent = function(state, line, tab) {
        var indent = this.$getIndent(line);

        var tokenizedLine = this.$tokenizer.getLineTokens(line, state);
        var tokens = tokenizedLine.tokens;
        var endState = tokenizedLine.state;

        if (tokens.length && tokens[tokens.length-1].type == "comment") {
            return indent;
        }

        if (state == "start") {
            var match = line.match(/^.*[\{\(\[]\s*$/);
            if (match) {
                indent += tab;
            }
        }

        return indent;
    };

    this.checkOutdent = function(state, line, input) {
        return this.$outdent.checkOutdent(line, input);
    };

    this.autoOutdent = function(state, doc, row) {
        this.$outdent.autoOutdent(doc, row);
    };

}).call(Mode.prototype);

exports.Mode = Mode;
});
