package log

import (
	"fmt"
	"github.com/natefinch/lumberjack"
	"go.uber.org/zap"
	"go.uber.org/zap/zapcore"
	"time"
)

var Logger *zap.Logger

func InitLogger(logpath string, loglevel string) {
	// 日志分割
	hook := lumberjack.Logger{
		Filename:   logpath, // 日志文件路径，默认 os.TempDir()
		MaxSize:    200,     // 每个日志文件保存10M，默认 100M
		MaxBackups: 20,      // 保留30个备份，默认不限
		MaxAge:     15,      // 保留7天，默认不限
		Compress:   false,   // 是否压缩，默认不压缩
	}
	write := zapcore.AddSync(&hook)
	// 设置日志级别
	// debug 可以打印出 info debug warn
	// info  级别可以打印 warn info
	// warn  只能打印 warn
	// debug->info->warn->error
	var level zapcore.Level
	switch loglevel {
	case "debug":
		level = zap.DebugLevel
	case "info":
		level = zap.InfoLevel
	case "error":
		level = zap.ErrorLevel
	default:
		level = zap.InfoLevel
	}
	encoderConfig := zapcore.EncoderConfig{
		TimeKey:        "time",
		LevelKey:       "level",
		NameKey:        "logger",
		CallerKey:      "caller",
		MessageKey:     "msg",
		StacktraceKey:  "stacktrace",
		LineEnding:     zapcore.DefaultLineEnding,
		EncodeLevel:    zapcore.LowercaseLevelEncoder, // 小写编码器
		EncodeTime:     formatEncodeTime,
		EncodeDuration: zapcore.SecondsDurationEncoder, //
		EncodeCaller:   zapcore.ShortCallerEncoder,     // 全路径编码器
		//EncodeName:     zapcore.FullNameEncoder,
	}
	// 设置日志级别
	atomicLevel := zap.NewAtomicLevel()
	atomicLevel.SetLevel(level)
	core := zapcore.NewCore(
		// zapcore.NewConsoleEncoder(encoderConfig),
		zapcore.NewJSONEncoder(encoderConfig),
		//zapcore.NewMultiWriteSyncer(zapcore.AddSync(os.Stdout)),
		//zapcore.NewMultiWriteSyncer(zapcore.AddSync(os.Stdout), zapcore.AddSync(write)), // 打印到控制台和文件
		write, //文件
		level,
	)
	// 开启开发模式，堆栈跟踪
	caller := zap.AddCaller()
	// 开启文件及行号
	development := zap.Development()
	// 设置初始化字段,如：添加一个服务器名称
	//filed := zap.Fields(zap.String("serviceName", "serviceName"))
	// 构造日志
	Logger = zap.New(core, caller, development)
	Logger.Info("DefaultLogger init success")
}

func formatEncodeTime(t time.Time, enc zapcore.PrimitiveArrayEncoder) {
	enc.AppendString(fmt.Sprintf("%d-%02d-%02d %02d:%02d:%02d", t.Year(), t.Month(), t.Day(), t.Hour(), t.Minute(), t.Second()))
}

func Field(key string, val interface{}) zap.Field {
	return zap.Any(key, val)
}