// NOTE: This has been modified from the original version to add additional commands


(function(mod) {
	if (typeof exports == "object" && typeof module == "object") // CommonJS
		mod(require("../../lib/codemirror"));
	else if (typeof define == "function" && define.amd) // AMD
		define(["../../lib/codemirror"], mod);
	else // Plain browser env
		mod(CodeMirror);
})(function(CodeMirror) {
	"use strict";

	var listRE = /^(\s*)(>[> ]*|[*+-]\s|(\d+)([.)]))(\s*)/,
		emptyListRE = /^(\s*)(>[> ]*|[*+-]|(\d+)[.)])(\s*)$/,
		unorderedListRE = /[*+-]\s/;

	CodeMirror.commands.newlineAndIndentContinueMarkdownList = function(cm) {
		if (cm.getOption("disableInput")) return CodeMirror.Pass;
		var ranges = cm.listSelections(),
			replacements = [];
		for (var i = 0; i < ranges.length; i++) {
			var pos = ranges[i].head;
			var eolState = cm.getStateAfter(pos.line);
			var inList = eolState.list !== false;
			var inQuote = eolState.quote !== 0;

			var line = cm.getLine(pos.line),
				match = listRE.exec(line);
			if (!ranges[i].empty() || (!inList && !inQuote) || !match) {
				cm.execCommand("newlineAndIndent");
				return;
			}
			if (emptyListRE.test(line)) {
				cm.replaceRange("", {
					line: pos.line,
					ch: 0
				}, {
					line: pos.line,
					ch: pos.ch + 1
				});
				replacements[i] = "\n";
			} else {
				var indent = match[1],
					after = match[5];
				var bullet = unorderedListRE.test(match[2]) || match[2].indexOf(">") >= 0 ? match[2] : (parseInt(match[3], 10) + 1) + match[4];

				replacements[i] = "\n" + indent + bullet + after;
			}
		}

		cm.replaceSelections(replacements);
	};

	CodeMirror.commands.shiftTabAndIndentContinueMarkdownList = function(cm) {
		var ranges = cm.listSelections();
		var pos = ranges[0].head;
		var eolState = cm.getStateAfter(pos.line);
		var inList = eolState.list !== false;

		if (inList) {
			cm.execCommand('indentLess');
			return;
		}
		
		if(cm.options.indentWithTabs){
			cm.execCommand('insertTab');
		}
		else{
			var spaces = Array(cm.options.tabSize + 1).join(" ");
			cm.replaceSelection(spaces);
		}
	};

	CodeMirror.commands.tabAndIndentContinueMarkdownList = function(cm) {
		var ranges = cm.listSelections();
		var pos = ranges[0].head;
		var eolState = cm.getStateAfter(pos.line);
		var inList = eolState.list !== false;

		if (inList) {
			cm.execCommand('indentMore');
			return;
		}

		if(cm.options.indentWithTabs){
			cm.execCommand('insertTab');
		}
		else{
			var spaces = Array(cm.options.tabSize + 1).join(" ");
			cm.replaceSelection(spaces);
		}
	};
});