package log

import (
	"fmt"
	"os"
	"time"
)

const (
	ColorReset  = "\033[0m"
	ColorRed    = "\033[31m"
	ColorGreen  = "\033[32m"
	ColorYellow = "\033[33m"
	ColorCyan   = "\033[36m"
	ColorGray   = "\033[2;37m"
)

const (
	LogError = 1 << iota
	LogWarn
	LogEvent
	LogInfo
	LogHighlight
	LogPrint
	LogDebug

	LogAll = LogError | LogWarn | LogEvent | LogInfo | LogHighlight | LogPrint | LogDebug
)

type Log struct {
	fmtTime string
	level   uint32
}

func (l *Log) Printf(s string, v ...interface{}) {
	if l.level&LogPrint == LogPrint {
		l.ColorPrint(ColorGray, fmt.Sprintf(s, v...))
	}
}

func (l *Log) Panicf(s string, v ...interface{}) {
	panic(fmt.Sprintf(s, v...))
}

func (l *Log) Fatalf(s string, v ...interface{}) {
	l.ColorPrint(ColorRed, fmt.Sprintf(s, v...))
	os.Exit(1)
}

func (l *Log) Infof(s string, v ...interface{}) {
	if l.level&LogInfo == LogInfo {
		l.ColorPrint(ColorReset, fmt.Sprintf(s, v...))
	}
}

func (l *Log) Eventf(s string, v ...interface{}) {
	if l.level&LogEvent == LogEvent {
		l.ColorPrint(ColorCyan, fmt.Sprintf(s, v...))
	}
}

func (l *Log) Warnf(s string, v ...interface{}) {
	if l.level&LogWarn == LogWarn {
		l.ColorPrint(ColorYellow, fmt.Sprintf(s, v...))
	}
}

func (l *Log) Debugf(s string, v ...interface{}) {
	if l.level&LogDebug == LogDebug {
		l.ColorPrint(ColorGray, fmt.Sprintf(s, v...))
	}
}

func (l *Log) Highlightf(s string, v ...interface{}) {
	if l.level&LogHighlight == LogHighlight {
		l.ColorPrint(ColorGreen, fmt.Sprintf(s, v...))
	}
}

func (l *Log) Errorf(s string, v ...interface{}) {
	if l.level&LogHighlight == LogHighlight {
		l.ColorPrint(ColorRed, fmt.Sprintf(s, v...))
	}
}

func (l *Log) ColorPrint(color string, s string) {
	now := time.Now() // get this early.
	fmt.Fprintf(os.Stdout, "%s | %s%s%s", now.Format(l.fmtTime), color, s, ColorReset)
}

func (l *Log) SetLevel(level uint32) {
	l.level = level
}

func (l *Log) SetTimeFormat(fmt string) {
	l.fmtTime = fmt
}