Created
August 3, 2014 00:33
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I may have gone a little overboard with the logger...
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/* Lynx Logger | |
* A powerful logging library | |
* Deps: underscorejs | |
* | |
* Created by Cosrnos | |
*/ | |
(function() { | |
var _defaultLog = console.log.bind(console); | |
var logTypeArray = []; | |
var LogType = function() { | |
var name = 'internal'; | |
var prefixText = ''; | |
this.background = -1; | |
this.color = -1; | |
this.level = 0; | |
this.prefix = { | |
color: -1, | |
background: -1 | |
}; | |
Object.defineProperty(this, 'name', { | |
get: function() { | |
return name; | |
}, | |
set: function(value) { | |
name = value; | |
prefixText = (prefixText === '' ? value : prefixText); | |
} | |
}); | |
Object.defineProperty(this.prefix, 'text', { | |
get: function() { | |
return (prefixText === '' ? name : prefixText); | |
}, | |
set: function(value) { | |
prefixText = value; | |
} | |
}); | |
this.handler = function() {}; | |
}; | |
Lynx.Logger = { | |
_log: function() { | |
var args = Array.prototype.slice.call(arguments); | |
if (args && args[0]) { | |
if (args[0] instanceof LogType) { | |
return this._processLogType.apply(this, args); | |
} | |
_defaultLog.apply(this, args); | |
} else { | |
this.warn('Cannot call log with empty parameters'); | |
} | |
return Lynx.Logger; | |
}, | |
_processLogType: function() { | |
var args = Array.prototype.slice.call(arguments); | |
if (args && args[0]) { | |
if (args[0].name) { | |
var type = args.shift(); | |
var buffer = []; | |
_.each(args, function bootstrapArguments(argument, index) { | |
if (typeof argument === 'string') { | |
var cssString = ""; | |
cssString += (type.background !== -1 ? 'background: ' + type.background + '; ' : ''); | |
cssString += (type.color !== -1 ? 'color: ' + type.color + '; ' : ''); | |
if (cssString !== '') { | |
buffer.push('%c' + argument, cssString); | |
} else { | |
buffer.push(argument); | |
} | |
} else { | |
buffer.push(argument); | |
} | |
}); | |
var prefixCss = ''; | |
prefixCss += (type.prefix.background !== -1 ? 'background: ' + type.prefix.background + '; ' : ''); | |
prefixCss += (type.prefix.color !== -1 ? 'color: ' + type.prefix.color + '; ' : ''); | |
if (prefixCss !== '') { | |
buffer.unshift('%c[' + type.prefix.text + ']', prefixCss); | |
} else { | |
buffer.unshift('[' + type.prefix.text + ']'); | |
} | |
_defaultLog.apply(this, buffer); | |
} else { | |
this.warn('Cannot call _processLogType with non Lynx.LogType first parameter.'); | |
} | |
} else { | |
this.warn('Cannot call _processLogType with empty parameters'); | |
} | |
return Lynx.Logger; | |
}, | |
createLogType: function(options) { | |
var lt = new LogType(); | |
// There has to be a better way of doing this... | |
lt = _.extend(lt, options); | |
lt = _.defaults(lt, options); | |
if (!logTypeArray[lt.name]) { | |
logTypeArray[lt.name] = lt; | |
} else { | |
this.warn('A log type that has already been defined cannot be overwritten. Tried overwriting ' + lt.name); | |
} | |
if (lt.hasOwnProperty('_cmd')) { | |
if (typeof lt._cmd === 'string') { | |
lt._cmd = [lt._cmd]; | |
} | |
// Add the command(s) to the Logger object | |
_.each(lt._cmd, function bindCommands(command) { | |
Lynx.Logger[command] = function customLogCommand() { | |
var args = Array.prototype.slice.call(arguments); | |
args.unshift(Object.create(lt)); | |
this._log.apply(this, args); | |
}; | |
}); | |
delete lt._cmd; | |
} | |
logTypeArray.push(lt); | |
return Lynx.Logger; | |
} | |
}; | |
Object.defineProperty(Lynx.Logger, 'LogType', { | |
get: function() { | |
return logTypeArray; | |
}, | |
set: function(value) { | |
Lynx.Logger.warn("You cannot overwrite the value of the LogType global."); | |
} | |
}); | |
// Initialize the logger with basic types | |
Lynx.Logger.createLogType({ | |
name: 'info', | |
_cmd: ['info', 'log'], | |
prefix: { | |
text: 'INFO' | |
} | |
}); | |
Lynx.Logger.createLogType({ | |
name: 'warning', | |
_cmd: ['warn'], | |
prefix: { | |
text: 'WARNING', | |
color: "#FF8800" | |
} | |
}); | |
})(); |
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