package utils

import (
	"os"
	"time"

	"go.uber.org/zap"
	"go.uber.org/zap/zapcore"
)

var CronLogger *zap.SugaredLogger

func InitCronLog() {
	// 设置一些基本日志格式 具体含义还比较好理解，直接看zap源码也不难懂
	encoder := zapcore.NewConsoleEncoder(zapcore.EncoderConfig{
		MessageKey:  "msg",
		LevelKey:    "level",
		EncodeLevel: zapcore.LowercaseColorLevelEncoder, //设置颜色
		TimeKey:     "ts",
		EncodeTime: func(t time.Time, enc zapcore.PrimitiveArrayEncoder) {
			enc.AppendString(t.Format("2006-01-02 15:04:05"))
		},
		CallerKey:    "file",
		EncodeCaller: zapcore.ShortCallerEncoder,
		EncodeDuration: func(d time.Duration, enc zapcore.PrimitiveArrayEncoder) {
			enc.AppendInt64(int64(d) / 1000000)
		},
	}) // 实现两个判断日志等级的interface

	fileEncoderConfig := zapcore.EncoderConfig{
		TimeKey:    "time",
		LevelKey:   "level",
		CallerKey:  "caller",
		MessageKey: "msg",
		EncodeTime: func(t time.Time, enc zapcore.PrimitiveArrayEncoder) {
			enc.AppendString(t.Format("2006-01-02 15:04:05"))
		},
		EncodeLevel:      zapcore.LowercaseLevelEncoder, // 无颜色
		EncodeCaller:     zapcore.ShortCallerEncoder,
		ConsoleSeparator: "	", // tab分隔
	}
	fileEncoder := zapcore.NewConsoleEncoder(fileEncoderConfig)

	infoLevel := zap.LevelEnablerFunc(func(lvl zapcore.Level) bool {
		return lvl >= zapcore.InfoLevel
	})
	errorLevel := zap.LevelEnablerFunc(func(lvl zapcore.Level) bool {
		return lvl >= zapcore.ErrorLevel
	})
	fatalLevel := zap.LevelEnablerFunc(func(lvl zapcore.Level) bool {
		return lvl >= zapcore.FatalLevel
	})

	// 获取 error日志文件的io.Writer 抽象 getWriter() 在下方实现
	path := GetConfigString("log.path")
	errorFile := GetConfigString("log.errorFile")
	errorWriter := getWriter(path + "/cron-" + errorFile) // 最后创建具体的Logger
	fatalWriter := getWriter(path + "/cron-" + errorFile)
	infoFile := GetConfigString("log.infoFile")
	infoWriter := getWriter(path + "/cron-" + infoFile)

	core := zapcore.NewTee(
		zapcore.NewCore(encoder, zapcore.AddSync(os.Stdout), infoLevel), //打印到控制台
		zapcore.NewCore(fileEncoder, fatalWriter, fatalLevel),
		zapcore.NewCore(fileEncoder, errorWriter, errorLevel),
		zapcore.NewCore(fileEncoder, infoWriter, infoLevel),
	)
	log := zap.New(core, zap.AddCaller()) // 需要传入 zap.AddCaller() 才会显示打日志点的文件名和行数, 有点小坑

	CronLogger = log.Sugar()
}