package service

import (
	"blog/internal/model/vo"
	"blog/third_party/database"
	"context"
	"time"
)

type fileService struct {
}

var FileService fileService

func (*fileService) GetFile(relId string) []byte {
	ctx := context.Background()
	key := "blog:file:" + relId
	bytes, err := database.RedisTemplate.Get(ctx, key).Bytes()
	if err != nil {
		var file vo.CommonFiles
		database.GormTemplate.Table("common_files").Where("id = ?", relId).First(&file)
		bytes = file.Data
		database.RedisTemplate.Set(ctx, key, bytes, time.Duration(0))
	}
	return bytes
}