/**
 * Logger com níveis de debug
 * Substitui console.log dispersos pelo código
 */
var Logger = (function() {
    var LEVELS = {
        debug: 0,
        info: 1,
        warn: 2,
        error: 3
    };
    
    var currentLevel = LEVELS.info;
    
    function setLevel(level) {
        if (LEVELS[level] !== undefined) {
            currentLevel = LEVELS[level];
        }
    }
    
    function shouldLog(level) {
        return LEVELS[level] >= currentLevel;
    }
    
    function formatMessage(level) {
        var timestamp = new Date().toISOString().slice(11, 19);
        return '[' + timestamp + '] [' + level.toUpperCase() + ']';
    }
    
    return {
        debug: function() {
            if (shouldLog('debug')) console.debug(formatMessage('debug'), arguments);
        },
        
        info: function() {
            if (shouldLog('info')) console.info(formatMessage('info'), arguments);
        },
        
        warn: function() {
            if (shouldLog('warn')) console.warn(formatMessage('warn'), arguments);
        },
        
        error: function() {
            if (shouldLog('error')) console.error(formatMessage('error'), arguments);
        },
        
        setLevel: setLevel,
        
        enableDebug: function() {
            setLevel('debug');
        },
        
        disableDebug: function() {
            setLevel('info');
        }
    };
})();

window.Logger = Logger;