/* ***** BEGIN LICENSE BLOCK *****
 * Distributed under the BSD license:
 *
 * Copyright (c) 2010, Ajax.org B.V.
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of Ajax.org B.V. nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL AJAX.ORG B.V. BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 * ***** END LICENSE BLOCK ***** */

define(function(require, exports, module) {
"use strict";

var Rules = require("./coffee_highlight_rules").CoffeeHighlightRules;
var Outdent = require("./matching_brace_outdent").MatchingBraceOutdent;
var FoldMode = require("./folding/coffee").FoldMode;
var Range = require("../range").Range;
var TextMode = require("./text").Mode;
var WorkerClient = require("../worker/worker_client").WorkerClient;
var oop = require("../lib/oop");

function Mode() {
    this.HighlightRules = Rules;
    this.$outdent = new Outdent();
    this.foldingRules = new FoldMode();
}

oop.inherits(Mode, TextMode);

(function() {
    
    /*:
      [({[=:]        # Opening parentheses or brackets
     |[-=]>          # OR single or double arrow
     |\b(?:          # OR one of these words:
       else          #    else
      |try           # OR try
      |(?:swi|ca)tch # OR catch, optionally followed by:
        (?:\s*[$A-Za-z_\x7f-\uffff][$\w\x7f-\uffff]*)?  # a variable
      |finally       # OR finally
     ))\s*$          # all as the last thing on a line (allowing trailing space)
    |                # ---- OR ---- :
    ^\s*             # a line starting with optional space
    (else\b\s*)?     # followed by an optional "else"
    (?:              # followed by one of the following:
       if            #    if
      |for           # OR for
      |while         # OR while
      |loop          # OR loop
    )\b              #    (as a word)
    (?!.*\bthen\b)   # ... but NOT followed by "then" on the line
    */
    var indenter = /(?:[({[=:]|[-=]>|\b(?:else|try|(?:swi|ca)tch(?:\s+[$A-Za-z_\x7f-\uffff][$\w\x7f-\uffff]*)?|finally))\s*$|^\s*(else\b\s*)?(?:if|for|while|loop)\b(?!.*\bthen\b)/;
    var commentLine = /^(\s*)#/;
    var hereComment = /^\s*###(?!#)/;
    var indentation = /^\s*/;
    
    this.getNextLineIndent = function(state, line, tab) {
        var indent = this.$getIndent(line);
        var tokens = this.getTokenizer().getLineTokens(line, state).tokens;
    
        if (!(tokens.length && tokens[tokens.length - 1].type === 'comment') &&
            state === 'start' && indenter.test(line))
            indent += tab;
        return indent;
    };
    
    this.toggleCommentLines = function(state, doc, startRow, endRow){
        console.log("toggle");
        var range = new Range(0, 0, 0, 0);
        for (var i = startRow; i <= endRow; ++i) {
            var line = doc.getLine(i);
            if (hereComment.test(line))
                continue;
                
            if (commentLine.test(line))
                line = line.replace(commentLine, '$1');
            else
                line = line.replace(indentation, '$&#');
    
            range.end.row = range.start.row = i;
            range.end.column = line.length + 1;
            doc.replace(range, line);
        }
    };
    
    this.checkOutdent = function(state, line, input) {
        return this.$outdent.checkOutdent(line, input);
    };
    
    this.autoOutdent = function(state, doc, row) {
        this.$outdent.autoOutdent(doc, row);
    };
    
    this.createWorker = function(session) {
        var worker = new WorkerClient(["ace"], "ace/mode/coffee_worker", "Worker");
        worker.attachToDocument(session.getDocument());
        
        worker.on("annotate", function(e) {
            session.setAnnotations(e.data);
        });
        
        worker.on("terminate", function() {
            session.clearAnnotations();
        });
        
        return worker;
    };

    this.$id = "ace/mode/coffee";
}).call(Mode.prototype);

exports.Mode = Mode;

});