var specialConsole = (function() {
    function writeLine (message) {
        var args = [];

        if (writeLine.arguments.length > 1) {
            for (var i = 1; i < arguments.length; i++) {
                args.push(arguments[i]);
            };
            return console.log(replacePlaceHolder(arguments[0],args));
        } else {
            return console.log(message);
        };
    }

    function writeError (message) {
        var args = [];

        if (writeError.arguments.length > 1) {
            for (var i = 1; i < arguments.length; i++) {
                args.push(arguments[i]);
            };
            return console.error(replacePlaceHolder(arguments[0],args));
        } else {
            return console.error(message);
        };
    }

    function writeWarning (message) {
        var args = [];

        if (writeWarning.arguments.length > 1) {
            for (var i = 1; i < arguments.length; i++) {
                args.push(arguments[i]);
            };
            return console.warn(replacePlaceHolder(arguments[0],args));
        } else {
            return console.warn(message);
        };
    }

    function writeInfo (message) {
        var args = [];

        if (writeInfo.arguments.length > 1) {
            for (var i = 1; i < arguments.length; i++) {
                args.push(arguments[i]);
            };
            return console.warn(replacePlaceHolder(arguments[0],args));
        } else {
            return console.warn(message);
        };
    }

    function replacePlaceHolder(message,args) {
        var hasPlaceHolder = false;
        var nextArg = 0;
        var newMessage = "";
        for (var i = 0; i < message.length - 2; i+= 1) {
            if (message[i] == "{" && message[i + 2] == "}" && isNumber(message[i + 1])) {
                if (parseInt(message[i + 1] + 1) > args.length)  {
                    throw new Error("There are not enough arguments passed to the function");
                };
                if (args[nextArg].hasOwnProperty("toString")) {
                    newMessage = message.replace(nextArg, args[nextArg].toString());
                    nextArg++;
                } else {
                    newMessage = message.replace(nextArg, args[nextArg]);
                    nextArg++;
                };

            };
        };

        function isNumber(n) {
            return !isNaN(parseFloat(n)) && isFinite(n);
        }

        return newMessage;
    }

    return {
        writeLine: writeLine,
        writeError: writeError,
        writeWarning: writeWarning,
        writeInfo: writeInfo
    }

})();

specialConsole.writeLine("Message: hello");
specialConsole.writeLine("Message: {0}", "hello");
specialConsole.writeLine("Object: {0}", { name: "Gosho", toString: function() { return this.name }});
specialConsole.writeError("Error: {0}", "A fatal error has occurred.");
specialConsole.writeWarning("Warning: {0}", "You are not allowed to do that!");
specialConsole.writeInfo("Info: {0}", "Hi there! Here is some info for you.");
specialConsole.writeError(Error" object: {0}", { msg: "An error happened", toString: function() { return this.msg }});