package logic

import (
	"fmt"
	"fusenapi/utils/auth"
	"fusenapi/utils/basic"
	"fusenapi/utils/file"
	"fusenapi/utils/hash"
	"io"
	"net/http"

	"context"

	"fusenapi/server/upload/internal/svc"
	"fusenapi/server/upload/internal/types"

	"github.com/zeromicro/go-zero/core/logx"
)

type UploadFileBackendLogic struct {
	logx.Logger
	ctx    context.Context
	svcCtx *svc.ServiceContext
	r      *http.Request
}

func NewUploadFileBackendLogic(r *http.Request, svcCtx *svc.ServiceContext) *UploadFileBackendLogic {
	return &UploadFileBackendLogic{
		Logger: logx.WithContext(r.Context()),
		ctx:    r.Context(),
		svcCtx: svcCtx,
		r:      r,
	}
}

// 处理进入前逻辑w,r
// func (l *UploadFileBackendLogic) BeforeLogic(w http.ResponseWriter, r *http.Request) {
// }

// 处理逻辑后 w,r 如:重定向, resp 必须重新处理
// func (l *UploadFileBackendLogic) AfterLogic(w http.ResponseWriter, r *http.Request, resp *basic.Response) {
// // httpx.OkJsonCtx(r.Context(), w, resp)
// }

func (l *UploadFileBackendLogic) UploadFileBackend(req *types.UploadFileBackendReq, userinfo *auth.UserInfo) (resp *basic.Response) {
	// 返回值必须调用Set重新返回, resp可以空指针调用 resp.SetStatus(basic.CodeOK, data)
	// userinfo 传入值时, 一定不为null
	var userId int64 = 0
	var guestId int64 = 0

	// 检查用户是否是游客
	if userinfo != nil {
		if userinfo.IsGuest() {
			// 如果是，使用游客ID和游客键名格式
			guestId = userinfo.GuestId
		} else {
			// 否则，使用用户ID和用户键名格式
			userId = userinfo.UserId
		}
	}

	//设置内存大小
	l.r.ParseMultipartForm(32 << 20)

	fileObject, _, err := l.r.FormFile("file")
	fmt.Printf("%#v", fileObject)
	if err != nil {
		logx.Error(err)
		return resp.SetStatus(basic.CodeFileUploadErr, "file upload err,no files")
	}

	// 读取数据流
	ioData, err := io.ReadAll(fileObject)
	if err != nil {
		logx.Error(err)
		return resp.SetStatus(basic.CodeFileUploadErr, "file upload err,no files")
	}

	// 上传文件
	var upload = file.Upload{
		Ctx:        l.ctx,
		MysqlConn:  l.svcCtx.MysqlConn,
		AwsSession: l.svcCtx.AwsSession,
	}
	var resourceId string = hash.JsonHashKey(req.FileKey)
	uploadRes, err := upload.UploadFileByByte(&file.UploadBaseReq{
		FileHash:     resourceId,
		FileByte:     ioData,
		UploadBucket: req.UploadBucket,
		ApiType:      req.ApiType,
		UserId:       userId,
		GuestId:      guestId,
		Source:       req.Source,
		Metadata:     req.Metadata,
		Refresh:      req.Refresh,
		ResourceId:   req.ResourceId,
	})

	if err != nil {
		logx.Error(err)
		return resp.SetStatus(basic.CodeFileUploadErr, "upload file failed")
	}

	// 返回成功的响应和上传URL
	return resp.SetStatus(basic.CodeOK, map[string]interface{}{
		"upload_data": UploadUrl{
			Status:      1,
			ResourceId:  uploadRes.ResourceId,
			ResourceUrl: uploadRes.ResourceUrl,
		},
	})
}