package logic

import (
	"encoding/json"
	"errors"
	"fusenapi/model/gmodel"
	"fusenapi/utils/auth"
	"fusenapi/utils/basic"
	"fusenapi/utils/curl"
	"fusenapi/utils/file"
	"fusenapi/utils/hash"
	"io"
	"net/http"
	"strings"
	"time"

	"context"

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

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

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

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

// 处理进入前逻辑w,r
// func (l *UploadLogoLogic) 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 *UploadLogoLogic) AfterLogic(w http.ResponseWriter, r *http.Request, resp *basic.Response) {
// // httpx.OkJsonCtx(r.Context(), w, resp)
// }

func (l *UploadLogoLogic) UploadLogo(req *types.UploadLogoReq, 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
	if userinfo.IsOnlooker() {
		// 如果是，返回未授权的错误码
		return resp.SetStatus(basic.CodeUnAuth)
	}

	var userId int64
	var guestId int64

	// 检查用户是否是游客
	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, fileHeader, err := l.r.FormFile("file")
	if err != nil {
		logx.Error(err)
		return resp.SetStatus(basic.CodeFileUploadErr, "file upload err,no files")
	}
	defer fileObject.Close()

	// 获取文件的MIME类型
	fileType := fileHeader.Header.Get("Content-Type")
	var imageTypes = make(map[string]struct{}, 7)
	imageTypes["image/jpg"] = struct{}{}
	imageTypes["image/jpeg"] = struct{}{}
	imageTypes["image/png"] = struct{}{}
	imageTypes["image/gif"] = struct{}{}
	imageTypes["image/bmp"] = struct{}{}
	imageTypes["image/tiff"] = struct{}{}
	imageTypes["image/webp"] = struct{}{}
	imageTypes["image/svg+xml"] = struct{}{}

	// 判断文件类型是否为图片
	_, ok := imageTypes[fileType]
	if !ok {
		return resp.SetStatus(basic.CodeFileUploadErr, "file upload err,file is not image")
	}

	// 限制上传文件大小 50k
	// maxSize := 100 * 1024
	// if fileHeader.Size > int64(maxSize) {
	// 	return resp.SetStatus(basic.CodeFileUploadErr, "file upload err,The file size exceeds the maximum limit of 100k")
	// }

	// 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: 1,
		ApiType:      2,
		UserId:       userId,
		GuestId:      guestId,
		Source:       "upload-logo",
	})

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

	logx.Infof("上传logo请求算法--开始时间：%v", time.Now())

	var logoWidth int64
	var logoHeight int64
	// 查看sku是否存在
	if req.SkuId > 0 {
		// 查询出产品模板信息
		productTemplateV2Model := gmodel.NewFsProductTemplateV2Model(l.svcCtx.MysqlConn)
		productTemplateV2Info, err := productTemplateV2Model.FindOne(l.ctx, req.SkuId)
		if err != nil {
			logx.Error(err)
			return resp.SetStatus(basic.CodeFileUploadLogoErr, "logo upload err,no product template")
		}

		logoWidth = *productTemplateV2Info.LogoWidth
		logoHeight = *productTemplateV2Info.LogoHeight
	}
	// 设置默认宽高
	if logoWidth == 0 || logoHeight == 0 {
		logoWidth = 300
		logoHeight = 200
	}
	var resultStr string

	var postMap = make(map[string]interface{}, 1)
	postMap["logo_url"] = uploadRes.ResourceUrl
	postMapB, _ := json.Marshal(postMap)

	var headerData = make(map[string]string, 1)
	headerData["Content-Type"] = "application/json"
	result, err := curl.ApiCall(l.svcCtx.Config.BLMService.ImageProcess.Url, "POST", headerData, strings.NewReader(string(postMapB)), time.Minute*5)

	if err != nil {
		logx.Error(err)
		return resp.SetStatus(basic.CodeFileUploadLogoErr, "service fail 01")
	}
	defer result.Body.Close()
	b, err := io.ReadAll(result.Body)
	if err != nil {
		logx.Error(err)
		return resp.SetStatus(basic.CodeFileUploadLogoErr, "service fail 02")
	}

	logx.Infof("上传logo请求算法--结束时间：%v", time.Now())
	logx.Infof("上传logo请求算法--返回结果：%v", string(b))

	if string(b) == "Internal Server Error" {
		err = errors.New("BLMService fail Internal Server Error")
		logx.Error(err)
		return resp.SetStatus(basic.CodeFileUploadLogoErr, "service fail 03")
	} else {
		var resData map[string]interface{}
		err = json.Unmarshal(b, &resData)
		if err != nil || resData == nil {
			logx.Error(err)
			return resp.SetStatus(basic.CodeFileUploadLogoErr, "service fail 04")
		}

		if resData != nil {
			if resData["code"].(string) == "200" {
				resultStr = resData["data"].(string)
			} else {
				logx.Error(err)
				return resp.SetStatus(basic.CodeFileUploadLogoErrType, "service fail 05")
			}
		} else {
			logx.Error(err)
			return resp.SetStatus(basic.CodeFileUploadLogoErr, "service fail 06")
		}
	}

	var module = "logo"
	var nowTime = time.Now().Unix()
	// 新增记录
	userMaterialModel := gmodel.NewFsUserMaterialModel(l.svcCtx.MysqlConn)
	_, err = userMaterialModel.CreateOrUpdate(l.ctx, &gmodel.FsUserMaterial{
		Module:      &module,
		UserId:      &userId,
		GuestId:     &guestId,
		ResourceId:  &uploadRes.ResourceId,
		ResourceUrl: &uploadRes.ResourceUrl,
		Metadata:    &resultStr,
		CreateAt:    &nowTime,
	})

	if err != nil {
		logx.Error(err)
		return resp.SetStatus(basic.CodeFileUploadLogoErr, "service fail")
	}

	// 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,
		},
	})
}