package logger

import (
	"context"
	"errors"
	log "github.com/sirupsen/logrus"
	"gorm.io/gorm"
	gormLogger "gorm.io/gorm/logger"
	"gorm.io/gorm/utils"
	"time"
)

/*
  /internal/pkg/logger
  该package用于定义和实现日志相关接口
*/

//ORM接口的实现

//在所有级别的日志消息中加入默认字段model="gorm"
//type GORMFieldHook struct {
//}
//
//func NewGORMFieldHook() (*GORMFieldHook) {
//
//	return &GORMFieldHook{}
//}
//
//func (hook *GORMFieldHook) Fire(entry *log.Entry) error {
//	entry.Data["model"] = "gorm"
//	return nil
//}

type gromLogger struct {
	logger                *log.Logger
	SlowThreshold         time.Duration  // 慢 SQL 阈值
	SourceField           string
	SkipErrRecordNotFound bool
}

func NewGormLogger(logger *log.Logger) *gromLogger {
	return &gromLogger{
		logger:                logger,
		SkipErrRecordNotFound: true,
	}
}

//实现logger interface中相关接口
func (l *gromLogger) LogMode(gormLogger.LogLevel) gormLogger.Interface {
	return l
}

func (l *gromLogger) Info(ctx context.Context, s string, args ...interface{}) {
	l.logger.WithContext(ctx).Infof(s, args)
}

func (l *gromLogger) Warn(ctx context.Context, s string, args ...interface{}) {
	l.logger.WithContext(ctx).Warnf(s, args)
}

func (l *gromLogger) Error(ctx context.Context, s string, args ...interface{}) {
	l.logger.WithContext(ctx).Errorf(s, args)
}

func (l *gromLogger) Trace(ctx context.Context, begin time.Time, fc func() (string, int64), err error) {
	elapsed := time.Since(begin)
	sql, _ := fc()
	fields := log.Fields{}
	if l.SourceField != "" {
		fields[l.SourceField] = utils.FileWithLineNum()
	}
	if err != nil && !(errors.Is(err, gorm.ErrRecordNotFound) && l.SkipErrRecordNotFound) {
		fields[log.ErrorKey] = err
		l.logger.WithContext(ctx).WithFields(fields).Errorf("%s [%s]", sql, elapsed)
		return
	}

	if l.SlowThreshold != 0 && elapsed > l.SlowThreshold {
		l.logger.WithContext(ctx).WithFields(fields).Warnf("%s [%s]", sql, elapsed)
		return
	}

	l.logger.WithContext(ctx).WithFields(fields).Debugf("%s [%s]", sql, elapsed)
}