package logx

import (
	"fmt"
	"io"
	"time"

	"github.com/tal-tech/go-zero/core/timex"
)

const durationCallerDepth = 3

type durationLogger logEntry

// WithDuration returns a Logger which logs the given duration.
func WithDuration(d time.Duration) Logger {
	return &durationLogger{
		Duration: timex.ReprOfDuration(d),
	}
}

func (l *durationLogger) Error(v ...interface{}) {
	if shouldLog(ErrorLevel) {
		l.write(errorLog, levelError, formatWithCaller(fmt.Sprint(v...), durationCallerDepth))
	}
}

func (l *durationLogger) Errorf(format string, v ...interface{}) {
	if shouldLog(ErrorLevel) {
		l.write(errorLog, levelError, formatWithCaller(fmt.Sprintf(format, v...), durationCallerDepth))
	}
}

func (l *durationLogger) Info(v ...interface{}) {
	if shouldLog(InfoLevel) {
		l.write(infoLog, levelInfo, fmt.Sprint(v...))
	}
}

func (l *durationLogger) Infof(format string, v ...interface{}) {
	if shouldLog(InfoLevel) {
		l.write(infoLog, levelInfo, fmt.Sprintf(format, v...))
	}
}

func (l *durationLogger) Slow(v ...interface{}) {
	if shouldLog(ErrorLevel) {
		l.write(slowLog, levelSlow, fmt.Sprint(v...))
	}
}

func (l *durationLogger) Slowf(format string, v ...interface{}) {
	if shouldLog(ErrorLevel) {
		l.write(slowLog, levelSlow, fmt.Sprintf(format, v...))
	}
}

func (l *durationLogger) WithDuration(duration time.Duration) Logger {
	l.Duration = timex.ReprOfDuration(duration)
	return l
}

func (l *durationLogger) write(writer io.Writer, level, content string) {
	l.Timestamp = getTimestamp()
	l.Level = level
	l.Content = content
	outputJson(writer, logEntry(*l))
}