package service

import (
	"geo/internal/biz"
	"geo/internal/config"
	"geo/internal/data/impl"
	"geo/internal/data/model"
	"geo/internal/entitys"
	"geo/pkg"
	"geo/tmpl/dataTemp"
	"geo/tmpl/errcode"
	"github.com/go-viper/mapstructure/v2"
	"github.com/gofiber/fiber/v2"
	"io"
	"xorm.io/builder"
)

type ProductService struct {
	cfg         *config.Config
	productImpl *impl.ProductImpl
	authBiz     *biz.AuthBiz
	productBiz  *biz.ProductBiz
}

func NewProductService(cfg *config.Config, ProductImpl *impl.ProductImpl, authBiz *biz.AuthBiz, productBiz *biz.ProductBiz) *ProductService {
	return &ProductService{
		cfg:         cfg,
		productImpl: ProductImpl,
		authBiz:     authBiz,
		productBiz:  productBiz,
	}
}

func (p *ProductService) Add(c *fiber.Ctx, req *entitys.CreateProductRequest) error {
	_, _, err := p.authBiz.UserAndTokenValid(c.UserContext(), req.UserIndex, req.AccessToken)
	if err != nil {
		return err
	}
	var data model.Product
	err = mapstructure.Decode(req, &data)
	if err != nil {
		return err
	}
	err = p.productImpl.Add(c.UserContext(), &data)
	if err != nil {
		return err
	}
	return nil
}

func (p *ProductService) Detail(c *fiber.Ctx, req *entitys.ProductDetailRequest) error {
	_, err := p.authBiz.ValidateAccessToken(c.UserContext(), req.AccessToken)
	if err != nil {
		return err
	}
	var detail model.Product
	cond := builder.NewCond().
		And(builder.Eq{"id": req.Id})
	err = p.productImpl.GetOneBySearchStruct(c.UserContext(), &cond, &detail)
	if err != nil {
		return err
	}
	return pkg.HandleResponse(c, detail)
}

func (p *ProductService) List(c *fiber.Ctx, req *entitys.ProductListRequest) error {
	_, _, err := p.authBiz.UserAndTokenValid(c.UserContext(), req.UserIndex, req.AccessToken)
	if err != nil {
		return err
	}
	page := req.Page
	if page < 1 {
		page = 1
	}
	pageSize := req.PageSize
	if pageSize < 1 {
		pageSize = 20
	}
	if pageSize > 100 {
		pageSize = 100
	}
	var list []*model.Product
	cond := builder.NewCond().
		And(builder.Eq{"user_index": req.UserIndex}).
		And(builder.Eq{"status": 1})
	total, err := p.productImpl.GetListToStruct(c.UserContext(), &cond, &dataTemp.ReqPageBo{Page: page, Limit: pageSize}, &list, "")
	if err != nil {
		return err
	}

	return pkg.SuccessWithPageMsg(c, list, total.Total, page, pageSize)
}

func (p *ProductService) Update(c *fiber.Ctx, req *entitys.ProductUpdateRequest) error {
	_, err := p.authBiz.ValidateAccessToken(c.UserContext(), req.AccessToken)
	if err != nil {
		return err
	}
	var data model.Product
	err = mapstructure.Decode(req, &data)
	if err != nil {
		return err
	}
	err = p.productImpl.UpdateByKey(c.UserContext(), p.productImpl.PrimaryKey(), req.Id, &data)
	return nil
}

func (p *ProductService) Del(c *fiber.Ctx, req *entitys.ProductDelRequest) error {
	_, err := p.authBiz.ValidateAccessToken(c.UserContext(), req.AccessToken)
	if err != nil {
		return err
	}
	err = p.productImpl.DeleteByKey(c.UserContext(), p.productImpl.PrimaryKey(), req.Id)
	return nil
}

func (p *ProductService) ImgUpload(c *fiber.Ctx) error {
	access := c.FormValue("access_token", "")
	if access == "" {
		return errcode.ParamErr("access_token未找到")
	}
	// 验证token
	_, err := p.authBiz.ValidateAccessToken(c.UserContext(), access)
	if err != nil {
		return err
	}

	fileHeader, err := c.FormFile("file")
	if err != nil {
		return errcode.ParamErr("未找到上传文件")
	}
	file, err := fileHeader.Open()
	if err != nil {
		return errcode.ParamErrf("无法打开文件:%S", err.Error())
	}
	defer file.Close()

	fileBytes, err := io.ReadAll(file)
	if err != nil {
		return errcode.ParamErrf("读取文件失败:%s", err.Error())
	}

	// 获取文件扩展名
	ext := pkg.GetFileExtension(fileHeader.Filename)

	// 根据图片类型生成文件名
	fileName := pkg.GenerateImageFileName(ext)

	url, err := p.productBiz.SourceUpload(c.UserContext(), fileBytes, fileName)
	if err != nil {
		return err
	}
	return pkg.HandleResponse(c, fiber.Map{"url": url})
}