package mylog

import (
	"go.uber.org/zap"
	"go.uber.org/zap/zapcore"
	"io"
	"os"
	"strings"
)

const (
	DebugLevel = "DEBUG"
	InfoLevel  = "INFO"
	WarnLevel  = "WARN"
	ErrorLevel = "ERROR"
	FatalLevel = "FATAL"
)

var (
	levelMap = map[string]zapcore.Level{
		"DEBUG": zapcore.DebugLevel,
		"INFO":  zapcore.InfoLevel,
		"WARN":  zapcore.WarnLevel,
		"ERROR": zapcore.ErrorLevel,
		"FATAL": zapcore.FatalLevel,
	}
	// DefaultConfig 默认配置
	DefaultConfig = &Config{
		Level:         DebugLevel,
		NeedLogFile:   false,
		ConsoleWriter: os.Stdout,
	}
	globalLog = NewLogger("debug", DefaultConfig)
)

type (
	ZapLog struct {
		sugarLog *zap.SugaredLogger
	}

	Config struct {
		Level         string
		NeedLogFile   bool
		ConsoleWriter io.Writer
		ZapOpt        []zap.Option
	}
)

// Init 覆盖默认日志
func Init(serverName string, config *Config) {
	globalLog = NewLogger(serverName, config)
}

func NewLogger(serverName string, config *Config) *ZapLog {
	if config == nil {
		config = DefaultConfig
	}
	var level zapcore.Level
	if v, ok := levelMap[strings.ToUpper(config.Level)]; ok {
		level = v
	} else {
		level = zapcore.DebugLevel
	}

	cfg := zap.NewProductionEncoderConfig()
	cfg.EncodeLevel = zapcore.CapitalColorLevelEncoder
	cfg.ConsoleSeparator = " | "

	// 指定日志时间格式
	cfg.EncodeTime = zapcore.TimeEncoderOfLayout("2006-01-02 15:04:05.000")
	cfg.EncodeCaller = zapcore.ShortCallerEncoder

	cores := make([]zapcore.Core, 0)
	// 使用控制台输出
	if config.ConsoleWriter != nil {
		encoder := zapcore.NewConsoleEncoder(cfg)
		core := zapcore.NewCore(encoder, zapcore.AddSync(config.ConsoleWriter), level)
		cores = append(cores, core)
	}

	opts := make([]zap.Option, 0)
	if config.ZapOpt != nil {
		opts = config.ZapOpt
	} else {
		opts = append(opts, zap.AddCaller(), zap.AddCallerSkip(2))
	}

	zl := zap.New(zapcore.NewTee(cores...), opts...)

	return &ZapLog{
		sugarLog: zl.Sugar(),
	}
}

func (z *ZapLog) Debug(args ...interface{}) {
	z.sugarLog.Debug(args...)
}

func (z *ZapLog) Info(args ...interface{}) {
	z.sugarLog.Info(args...)
}

func (z *ZapLog) Warn(args ...interface{}) {
	z.sugarLog.Warn(args...)
}

func (z *ZapLog) Error(args ...interface{}) {
	z.sugarLog.Error(args...)
}

func (z *ZapLog) Fatal(args ...interface{}) {
	z.sugarLog.Fatal(args...)
}

func (z *ZapLog) Debugf(format string, args ...interface{}) {
	z.sugarLog.Debugf(format, args...)
}

func (z *ZapLog) Infof(format string, args ...interface{}) {
	z.sugarLog.Infof(format, args...)
}

func (z *ZapLog) Warnf(format string, args ...interface{}) {
	z.sugarLog.Warnf(format, args...)
}

func (z *ZapLog) Errorf(format string, args ...interface{}) {
	z.sugarLog.Errorf(format, args...)
}

func (z *ZapLog) Fatalf(format string, args ...interface{}) {
	z.sugarLog.Fatalf(format, args...)
}

func (z *ZapLog) Println(args ...interface{}) {
	z.sugarLog.Info(args...)
}

func (z *ZapLog) Printf(format string, args ...interface{}) {
	z.sugarLog.Infof(format, args...)
}

func (z *ZapLog) Sync() {
	z.sugarLog.Sync()
}

func Debug(args ...interface{}) {
	globalLog.Debug(args...)
}

func Info(args ...interface{}) {
	globalLog.Info(args...)
}

func Warn(args ...interface{}) {
	globalLog.Warn(args...)
}

func Error(args ...interface{}) {
	globalLog.Error(args...)
}

func Fatal(args ...interface{}) {
	globalLog.Fatal(args...)
}

func Debugf(format string, args ...interface{}) {
	globalLog.Debugf(format, args...)
}

func Infof(format string, args ...interface{}) {
	globalLog.Infof(format, args...)
}

func Warnf(format string, args ...interface{}) {
	globalLog.Warnf(format, args...)
}

func Errorf(format string, args ...interface{}) {
	globalLog.Errorf(format, args...)
}

func Fatalf(format string, args ...interface{}) {
	globalLog.Fatalf(format, args...)
}

func Println(args ...interface{}) {
	globalLog.Info(args...)
}

func Printf(format string, args ...interface{}) {
	globalLog.Infof(format, args...)
}

func GetLogger() *ZapLog {
	return globalLog
}

func Flush() {
	globalLog.Sync()
}