package logic

import (
	"encoding/json"
	"errors"
	"fmt"
	"fusenapi/constants"
	"fusenapi/utils/auth"
	"fusenapi/utils/basic"
	"fusenapi/utils/image"
	"gorm.io/gorm"
	"strconv"
	"strings"

	"context"

	"fusenapi/server/product/internal/svc"
	"fusenapi/server/product/internal/types"

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

type GetTemplateByPidLogic struct {
	logx.Logger
	ctx    context.Context
	svcCtx *svc.ServiceContext
}

func NewGetTemplateByPidLogic(ctx context.Context, svcCtx *svc.ServiceContext) *GetTemplateByPidLogic {
	return &GetTemplateByPidLogic{
		Logger: logx.WithContext(ctx),
		ctx:    ctx,
		svcCtx: svcCtx,
	}
}

func (l *GetTemplateByPidLogic) GetTemplateByPid(req *types.GetTemplateByPidReq, userinfo *auth.UserInfo) (resp *basic.Response) {
	req.Pid = strings.Trim(req.Pid, " ")
	if req.Pid == "" {
		return resp.SetStatusWithMessage(basic.CodeRequestParamsErr, "err param:pid is empty")
	}
	if req.Size > 0 {
		req.Size = image.GetCurrentSize(req.Size)
	}
	if req.ProductTemplateTagId <= 0 {
		return resp.SetStatusWithMessage(basic.CodeRequestParamsErr, "err param:product_template_tag_id")
	}
	//获取产品信息(只是获取id)
	productInfo, err := l.svcCtx.AllModels.FsProduct.FindOneBySn(l.ctx, req.Pid, "id")
	if err != nil {
		if errors.Is(err, gorm.ErrRecordNotFound) {
			return resp.SetStatusWithMessage(basic.CodeDbRecordNotFoundErr, "the product is not exists")
		}
		logx.Error(err)
		return resp.SetStatusWithMessage(basic.CodeDbSqlErr, "failed to get product info")
	}
	//获取尺寸ids(只获取id)
	sizeList, err := l.svcCtx.AllModels.FsProductSize.GetAllByProductIds(l.ctx, []int64{productInfo.Id}, "id")
	if err != nil {
		logx.Error(err)
		return resp.SetStatusWithMessage(basic.CodeDbSqlErr, "failed to get size list")
	}
	if len(sizeList) == 0 {
		return resp.SetStatusWithMessage(basic.CodeOK, "success:size list is empty")
	}
	sizeIds := make([]int64, 0, len(sizeList))
	for _, v := range sizeList {
		sizeIds = append(sizeIds, v.Id)
	}
	//获取模型数据
	modelList, err := l.svcCtx.AllModels.FsProductModel3d.GetAllBySizeIdsTag(l.ctx, sizeIds, constants.TAG_MODEL, "id,size_id")
	if err != nil {
		logx.Error(err)
		return resp.SetStatusWithMessage(basic.CodeDbSqlErr, "failed to get model list")
	}
	if len(modelList) == 0 {
		return resp.SetStatusWithMessage(basic.CodeOK, "success:model list is empty")
	}
	modelIds := make([]int64, 0, len(modelList))
	mapModel := make(map[int64]int)
	for k, v := range modelList {
		modelIds = append(modelIds, v.Id)
		mapModel[v.Id] = k
	}
	//获取模板数据
	productTemplateList, err := l.svcCtx.AllModels.FsProductTemplateV2.FindAllByModelIdsTemplateTag(l.ctx, modelIds, fmt.Sprintf("%d", req.ProductTemplateTagId), "sort DESC")
	if err != nil {
		logx.Error(err)
		return resp.SetStatusWithMessage(basic.CodeDbSqlErr, "failed to get product templates")
	}
	if len(productTemplateList) == 0 {
		return resp.SetStatusWithMessage(basic.CodeOK, "success:product template list is empty")
	}
	tagIds := make([]int64, 0, len(productTemplateList))
	for _, v := range productTemplateList {
		if *v.Tag == "" {
			continue
		}
		tag, err := strconv.ParseInt(*v.Tag, 10, 64)
		if err != nil {
			logx.Error(err)
			return resp.SetStatusWithMessage(basic.CodeServiceErr, "template tag is not a number:"+*v.Tag)
		}
		tagIds = append(tagIds, tag)
	}
	//获取模板标签列表
	templateTagList, err := l.svcCtx.AllModels.FsProductTemplateTags.GetListByIds(l.ctx, tagIds)
	if err != nil {
		logx.Error(err)
		return resp.SetStatusWithMessage(basic.CodeDbSqlErr, "failed to get template tag list")
	}
	mapTemplateTag := make(map[string]int)
	for k, v := range templateTagList {
		mapTemplateTag[fmt.Sprintf("%d", v.Id)] = k
	}
	mapRsp := make(map[string][]interface{})
	for _, v := range productTemplateList {
		//过滤没有设置详细数据的模板
		if v.TemplateInfo == nil || *v.TemplateInfo == "" {
			continue
		}
		var templateInfo map[string]interface{}
		if err = json.Unmarshal([]byte(*v.TemplateInfo), &templateInfo); err != nil {
			logx.Error(err)
			return resp.SetStatusWithMessage(basic.CodeJsonErr, "failed to parse json:template info")
		}
		if templateInfo["cover"] != nil && templateInfo["cover"].(string) != "" {
			cover := strings.Split(templateInfo["cover"].(string), ".")
			if req.Size >= 200 && len(cover) >= 2 {
				templateInfo["cover"] = fmt.Sprintf("%s_%d.%s", cover[0], req.Size, cover[1])
			}
		} else {
			templateInfo["cover"] = ""
		}
		templateInfo["tag_name"] = ""
		if tagIndex, ok := mapTemplateTag[*v.Tag]; ok {
			templateInfo["tag_name"] = *templateTagList[tagIndex].Title
		}
		templateInfo["title"] = *v.Title
		modelIndex, ok := mapModel[*v.ModelId]
		if !ok {
			continue
		}
		key := fmt.Sprintf("_%d", *modelList[modelIndex].SizeId)
		if _, ok = mapRsp[key]; ok {
			mapRsp[key] = append(mapRsp[key], templateInfo)
		} else {
			mapRsp[key] = []interface{}{templateInfo}
		}
	}
	return resp.SetStatusWithMessage(basic.CodeOK, "success", mapRsp)
}