iOSSwift:03.Logger

import Foundation

class Logger {

private var className:String
private let prefix = "★★★★★"
private let prefixInfo = "====="
private let currentLever = 6

private static let LEVEL_FATAL = 1
private static let LEVEL_ERROR = 2
private static let LEVEL_WARN = 3
private static let LEVEL_INFO = 4
private static let LEVEL_DEBUG = 5
private static let LEVEL_TRACE = 6

private static let NUM_1 = 1
private static let NUM_2 = 2

private static let SPACE = " "
private static let spot = "."

init(className:String) {
    self.className = className
}

func logTrace(strList:String...) {
    
    if currentLever >= Logger.LEVEL_TRACE {
        let tempMessage = getMessage(level: " Trace:" ,strList: strList)
        print(tempMessage)
    }
    
}

func logDebug(strList:String...) {
    
    if currentLever >= Logger.LEVEL_DEBUG {
        let tempMessage = getMessage(level: " Debug:" ,strList: strList)
        print(tempMessage)
    }
    
}

func logInfo(strList:String...) {
    
    if currentLever >= Logger.LEVEL_INFO {
        let tempMessage = getMessage(level: " Info:" ,strList: strList)
        print(tempMessage)
    }
    
}

func logWarn(strList:String...) {
    
    if currentLever >= Logger.LEVEL_WARN {
        let tempMessage = getMessage(level: " Warn:" ,strList: strList)
        print(tempMessage)
    }
    
}

func logError(strList:String...) {
    
    if currentLever >= Logger.LEVEL_ERROR {
        let tempMessage = getMessage(level: " Error:" ,strList: strList)
        print(tempMessage)
    }
    
}

func logFatal(strList:String...) {
    
    if currentLever >= Logger.LEVEL_FATAL {
        let tempMessage = getMessage(level: " Fatal:" ,strList: strList)
        print(tempMessage)
    }
    
}

func getMessage(level:String, strList:[String]) -> String{
    
    var tempPrefix:String
    
    if level.contains("Info") {
        tempPrefix = self.prefixInfo
    } else {
        tempPrefix = self.prefix
    }
    
    var tempMessage = tempPrefix + level + className + Logger.spot
    
    if strList.count > Logger.NUM_1 {
        
        tempMessage = tempMessage + strList[0]
        var paraArray = [String]()
        
        for i in 0 ..< strList.count{
            if i > 0 {
                paraArray.append(strList[i])
            }
        }
        
        tempMessage = String(format: tempMessage, arguments: paraArray)
        
    } else {
        for item in strList {
            tempMessage.append(item)
            tempMessage.append(Logger.SPACE)
        }
    }
    
    tempMessage.append(tempPrefix)
    return tempMessage
}

}