feat: 增加商品颜色匹配页面 (#294)

admin/handler/web/shopee.go

@@ -45,6 +45,25 @@ func (h *Handler) ShopeeDetail(c *gin.Context) {
 		return
 	}
 
+	returnValues := url.Values{}
+	if value := strings.TrimSpace(c.Query("q")); value != "" {
+		returnValues.Set("q", value)
+	}
+	returnValues.Set("search_field", service.ParseShopeeSearchField(c.Query("search_field")))
+	if value := service.ParseShopeeStatus(c.Query("status")); value != "" {
+		returnValues.Set("status", value)
+	}
+	if currentUser(c).IsAdmin() && c.Query("deleted") == "1" {
+		returnValues.Set("deleted", "1")
+	}
+	if c.Query("unlinked") == "1" {
+		returnValues.Set("unlinked", "1")
+	}
+	returnValues.Set("page", strconv.Itoa(service.ParsePage(c.Query("page"))))
+	returnValues.Set("page_size", strconv.Itoa(service.ParsePageSize(c.Query("page_size"))))
+	returnValues.Set("open_id", goodsID)
+	colorValues := url.Values{"goods_id": {goodsID}, "return_to": {"/shopee?" + returnValues.Encode()}}
+
 	c.HTML(http.StatusOK, "shopee/detail_modal", gin.H{
 		"D": detail, "CSRFToken": csrfToken(c),
 		"Keyword": c.Query("q"), "SearchField": service.ParseShopeeSearchField(c.Query("search_field")),
@@ -53,6 +72,7 @@ func (h *Handler) ShopeeDetail(c *gin.Context) {
 		"UnlinkedFilter":  c.Query("unlinked") == "1",
 		"CurrentPage":     service.ParsePage(c.Query("page")),
 		"CurrentPageSize": service.ParsePageSize(c.Query("page_size")),
+		"ColorMappingURL": "/shopee/color-mappings?" + colorValues.Encode(),
 	})
 }
 
@@ -126,6 +146,69 @@ func (h *Handler) renderShopeeList(c *gin.Context, keyword, searchFieldRaw, stat
 		"DetailURL":          "/shopee/detail?" + detailValuesForShopee(values, result.Page),
 		"AutoOpenDetailID":   strings.TrimSpace(c.Query("open_id")),
 		"AssignableClients":  assignableClients,
+		"ReturnToEscaped":    url.QueryEscape(c.Request.URL.RequestURI()),
+	}))
+}
+
+// ShopeeColorMappings 渲染当前蝦皮商品的独立颜色匹配工作区。
+func (h *Handler) ShopeeColorMappings(c *gin.Context) {
+	h.renderShopeeColorMappings(c, strings.TrimSpace(c.Query("goods_id")),
+		safeNext(c.Query("return_to")), nil, c.Query("msg"), "", http.StatusOK)
+}
+
+// ShopeeColorMappingsSave 只接收发生变化的颜色键和目标值；所有业务事实都重新从数据库读取。
+func (h *Handler) ShopeeColorMappingsSave(c *gin.Context) {
+	goodsID := strings.TrimSpace(c.PostForm("goods_id"))
+	returnTo := safeNext(c.PostForm("return_to"))
+	colorKeys, targets := c.PostFormArray("color_key"), c.PostFormArray("target_value")
+	overrides := make(map[string]string, len(colorKeys))
+	updates := make([]service.ProductColorMappingUpdate, 0, len(colorKeys))
+	if len(colorKeys) != len(targets) {
+		h.renderShopeeColorMappings(c, goodsID, returnTo, overrides, "", "提交的颜色行不完整，请刷新后重试。", http.StatusBadRequest)
+		return
+	}
+	for i, key := range colorKeys {
+		key = strings.TrimSpace(key)
+		overrides[key] = targets[i]
+		updates = append(updates, service.ProductColorMappingUpdate{ShopeeColorKey: key, TargetValue: targets[i]})
+	}
+	changed, err := service.SaveProductColorMappings(h.db, currentUser(c), goodsID,
+		c.PostForm("context_version"), updates)
+	if err != nil {
+		status, message := http.StatusInternalServerError, "保存颜色映射失败，数据库没有改动。请稍后重试。"
+		if service.IsValidationError(err) {
+			status, message = http.StatusConflict, err.Error()
+		}
+		h.renderShopeeColorMappings(c, goodsID, returnTo, overrides, "", message, status)
+		return
+	}
+	values := url.Values{"goods_id": {goodsID}, "return_to": {returnTo},
+		"msg": {fmt.Sprintf("已保存 %d 条颜色修改", changed)}}
+	c.Redirect(http.StatusSeeOther, "/shopee/color-mappings?"+values.Encode())
+}
+
+func (h *Handler) renderShopeeColorMappings(c *gin.Context, goodsID, returnTo string, overrides map[string]string, message, alert string, status int) {
+	if goodsID == "" {
+		fail(c, http.StatusBadRequest, "商品编号不对，请返回蝦皮数据页重新选择。")
+		return
+	}
+	context, err := service.GetProductColorMappingContext(h.db, goodsID)
+	if err != nil {
+		fail(c, http.StatusInternalServerError, "读取商品颜色匹配数据失败，数据没有被改动。")
+		return
+	}
+	if context == nil {
+		fail(c, http.StatusNotFound, "这个蝦皮商品不存在或已删除，请返回列表刷新。")
+		return
+	}
+	view := service.BuildProductColorMappingPageView(context, overrides)
+	statusText := service.ProductColorMappingStatusLine(view)
+	if message != "" {
+		statusText = message + " · " + statusText
+	}
+	c.HTML(status, "shopee/color_mappings", page(c, "shopee", "颜色匹配", gin.H{
+		"V": view, "ReturnTo": safeNext(returnTo), "Message": message, "Alert": alert,
+		"Status": statusText, "PageScript": "/static/js/color_mappings.js",
 	}))
 }
 

admin/handler/web/web.go

@@ -63,7 +63,9 @@ func Register(r *gin.Engine, db *sql.DB, onlineThreshold time.Duration, aiSecret
 	// 1. 蝦皮数据
 	pages.GET("/shopee", h.ShopeeList)
 	pages.GET("/shopee/detail", h.ShopeeDetail) // 双击行时前端来取弹窗内容
+	pages.GET("/shopee/color-mappings", h.ShopeeColorMappings)
 	pages.POST("/shopee/save", h.ShopeeSave)
+	pages.POST("/shopee/color-mappings/save", h.ShopeeColorMappingsSave)
 	pages.POST("/shopee/spec/save", h.ShopeeSpecSave)
 	pages.POST("/shopee/collect", h.ShopeeCollect)
 	pages.POST("/shopee/collect-batch", h.ShopeeCollectBatch)