package logic

import (
	"encoding/json"
	"errors"
	"fmt"
	"fusenapi/model/gmodel"
	"fusenapi/service/repositories"
	"fusenapi/utils/auth"
	"fusenapi/utils/basic"
	"fusenapi/utils/file"
	"fusenapi/utils/hash"
	"fusenapi/utils/s3url_to_s3id"
	"io"
	"net/http"

	"context"

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

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

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

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

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

func (l *UploadLogoDebugLogic) UploadLogoDebug(req *types.UploadLogoDebugReq, 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 (
		productTemplateTags []gmodel.FsProductTemplateTags
		err                 error
	)

	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)
		basic.CodeServiceErr.Message = fmt.Sprintf("算法请求--LOGO信息--错误：%+v", err)
		return resp.SetStatus(basic.CodeServiceErr)
	}

	userinfo.Debug = &auth.Debug{
		IsAllTemplateTag: 1,
	}
	var resultStr string
	resLogoStandard, err := l.svcCtx.Repositories.ImageHandle.LogoInfoSet(l.ctx, &repositories.LogoInfoSetReq{
		LogoUrl: uploadRes.ResourceUrl,
		Version: l.svcCtx.Config.BLMService.Version,
		Debug:   userinfo.Debug,
	})

	if err != nil {
		logx.Error(err)
		basic.CodeServiceErr.Message = fmt.Sprintf("算法请求--LOGO信息--错误：%+v", err)
		return resp.SetStatus(basic.CodeServiceErr, fmt.Sprintf("算法请求--LOGO信息--错误：%+v", err))
	}
	resultStr = resLogoStandard.Res

	//解析用户素材元数据
	var metaData map[string]interface{}
	if err = json.Unmarshal([]byte(resultStr), &metaData); err != nil {
		logx.Error(err)
		return resp.SetStatusWithMessage(basic.CodeJsonErr, "failed to parse user metadata")
	}
	//解析模板标签颜色
	var mapMaterialTemplateTagColors map[string][][]string
	b, _ := json.Marshal(metaData["template_tag"])
	if err = json.Unmarshal(b, &mapMaterialTemplateTagColors); err != nil {
		logx.Error(err)
		return resp.SetStatusWithMessage(basic.CodeJsonErr, "invalid format of metadata`s template_tag")
	}
	//解析单纯的模板标签用于排序
	var simpleTemplateTags []string
	b, _ = json.Marshal(metaData["template_tag_id"])
	if err = json.Unmarshal(b, &simpleTemplateTags); err != nil {
		logx.Error(err)
		return resp.SetStatusWithMessage(basic.CodeJsonErr, "invalid format of metadata`s template_tag_id")
	}
	var templateTagNameList []string
	for templateTag := range mapMaterialTemplateTagColors {
		templateTagNameList = append(templateTagNameList, templateTag)
	}
	productTemplateTags, err = l.svcCtx.AllModels.FsProductTemplateTags.GetListByTagNames(l.ctx, templateTagNameList, len(templateTagNameList), 1, "id DESC")
	if err != nil {
		logx.Error(err)
		return resp.SetStatusWithMessage(basic.CodeDbSqlErr, "failed to get template tags")
	}
	//获取默认渲染的产品(写死)
	productInfo, err := l.svcCtx.AllModels.FsProduct.FindOne(l.ctx, 30)
	if err != nil {
		if errors.Is(err, gorm.ErrRecordNotFound) {
			return resp.SetStatusWithMessage(basic.CodeDbRecordNotFoundErr, "the product info is not exists")
		}
		logx.Error(err)
		return resp.SetStatusWithMessage(basic.CodeDbSqlErr, "failed to get product info")
	}
	//资源id集合
	resourceIds := make([]string, 0, 5)
	for _, v := range productTemplateTags {
		resourceIds = append(resourceIds, s3url_to_s3id.GetS3ResourceIdFormUrl(*v.Cover))
	}
	resourceIds = append(resourceIds, s3url_to_s3id.GetS3ResourceIdFormUrl(*productInfo.Cover))
	//根据resourceUrls找到对应的元数据
	resourceMetadataList, err := l.svcCtx.AllModels.FsResource.FindAllByResourceIds(l.ctx, resourceIds)
	if err != nil {
		logx.Error(err)
		return resp.SetStatusWithMessage(basic.CodeDbSqlErr, "failed to get resource list")
	}
	mapResourceMetadata := make(map[string]map[string]interface{})
	for _, v := range resourceMetadataList {
		var metadata map[string]interface{}
		if v.Metadata != nil {
			_ = json.Unmarshal(*v.Metadata, &metadata)
		}
		mapResourceMetadata[*v.ResourceUrl] = metadata
	}
	//排序
	for index, templateTagStr := range simpleTemplateTags {
		for k, v := range productTemplateTags {
			if templateTagStr == *v.TemplateTag {
				productTemplateTags[k], productTemplateTags[index] = productTemplateTags[index], productTemplateTags[k]
				break
			}
		}
	}
	list := make([]types.GetProductTemplateTagsRsp, 0, len(productTemplateTags))
	for _, templateTagInfo := range productTemplateTags {
		colors := make([][]string, 0, 10)
		SelectedColorIndex := 0
		isDefaultTemplateTag := false
		//查看用户素材中标签对应的颜色
		if colorsSet, ok := mapMaterialTemplateTagColors[*templateTagInfo.TemplateTag]; ok {
			//标签颜色
			colors = colorsSet
		}
		var templateTagGroups []interface{}
		if templateTagInfo.Groups != nil && *templateTagInfo.Groups != "" {
			if err = json.Unmarshal([]byte(*templateTagInfo.Groups), &templateTagGroups); err != nil {
				logx.Error(err)
				return resp.SetStatusWithMessage(basic.CodeJsonErr, "failed to parse groups")
			}
		}
		list = append(list, types.GetProductTemplateTagsRsp{
			Id:                   templateTagInfo.Id,
			TemplateTag:          *templateTagInfo.TemplateTag,
			IsDefaultTemplateTag: isDefaultTemplateTag,
			TemplateTagGroups:    templateTagGroups,
			Cover:                *templateTagInfo.Cover,
			CoverMetadata:        mapResourceMetadata[*templateTagInfo.Cover],
			Colors:               colors,
			SelectedColorIndex:   SelectedColorIndex,
			ProductId:            productInfo.Id,
			ProductCover:         *productInfo.Cover,
			ProductCoverMetadata: mapResourceMetadata[*productInfo.Cover],
		})
	}

	return resp.SetStatusWithMessage(basic.CodeOK, "success", map[string]interface{}{
		"upload_data": UploadUrl{
			Status:      1,
			ResourceId:  uploadRes.ResourceId,
			ResourceUrl: uploadRes.ResourceUrl,
		},
		"tag_data": list,
	})
}

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