package loggo

import (
	"strings"

	"github.com/fatih/color"
)

// struct for log levels
type logLevel struct {
	level int
	name  string
	color color.Color
}

// debug log level (level = 0, name = "debug")
var DebugLevel = logLevel{0, "debug", *color.New(color.FgCyan)}

// info log level (level = 1, name = "info")
var InfoLevel = logLevel{1, "info", *color.New(color.FgGreen)}

// warning log level (level = 2, name = "warning")
var WarningLevel = logLevel{2, "warning", *color.New(color.FgYellow)}

// error log level (level = 3, name = "error")
var ErrorLevel = logLevel{3, "error", *color.New(color.FgRed)}

// fatal log level (level = 4, name = "fatal")
var FatalLevel = logLevel{4, "fatal", *color.New(color.FgRed).Add(color.Bold)}

// current log level (defaults to: "infoLevel")
var currentLevel = InfoLevel

// return current set log level
func GetLogLevel() logLevel {
	return currentLevel
}

// set current log level
func SetLogLevel(level logLevel) {
	currentLevel = level
}

// set current log level by name
func SetLogLevelByName(name string) {
	switch strings.ToLower(name) {
	case DebugLevel.name:
		SetLogLevel(DebugLevel)
	case InfoLevel.name:
		SetLogLevel(InfoLevel)
	case WarningLevel.name:
		SetLogLevel(WarningLevel)
	case ErrorLevel.name:
		SetLogLevel(ErrorLevel)
	case FatalLevel.name:
		SetLogLevel(FatalLevel)
	}
}

// set current log level by level
func SetLogLevelByLevel(level int) {
	switch level {
	case DebugLevel.level:
		SetLogLevel(DebugLevel)
	case InfoLevel.level:
		SetLogLevel(InfoLevel)
	case WarningLevel.level:
		SetLogLevel(WarningLevel)
	case ErrorLevel.level:
		SetLogLevel(ErrorLevel)
	case FatalLevel.level:
		SetLogLevel(FatalLevel)
	}
}

// set the color of a log level
func (level *logLevel) SetColor(color color.Color) {
	level.color = color
}