79 lines
2.0 KiB
Go
79 lines
2.0 KiB
Go
package handlers
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import (
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"net/http"
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"strings"
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"github.com/gin-gonic/gin"
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"mengyastore-backend/internal/models"
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"mengyastore-backend/internal/storage"
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)
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type PublicHandler struct {
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store *storage.ProductStore
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}
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func NewPublicHandler(store *storage.ProductStore) *PublicHandler {
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return &PublicHandler{store: store}
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}
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// ListProducts 上架商品列表（公开字段，不含卡密与管理信息）。
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// @Summary 上架商品列表
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// @Tags 公开
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// @Produce json
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// @Success 200 {object} SwaggerProductListBody
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// @Failure 500 {object} SwaggerErrorBody
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// @Router /api/products [get]
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func (h *PublicHandler) ListProducts(c *gin.Context) {
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items, err := h.store.ListActive()
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if err != nil {
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c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
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return
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}
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c.JSON(http.StatusOK, gin.H{"data": sanitizeForPublic(items)})
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}
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// RecordProductView 记录商品浏览（去重策略由服务端指纹决定）。
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// @Summary 记录商品浏览
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// @Tags 公开
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// @Produce json
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// @Param id path string true "商品 ID"
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// @Success 200 {object} SwaggerProductViewWrap
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// @Failure 404 {object} SwaggerErrorBody
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// @Router /api/products/{id}/view [post]
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func (h *PublicHandler) RecordProductView(c *gin.Context) {
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id := c.Param("id")
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fingerprint := buildViewerFingerprint(c)
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product, counted, err := h.store.IncrementView(id, fingerprint)
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if err != nil {
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c.JSON(http.StatusNotFound, gin.H{"error": err.Error()})
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return
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}
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c.JSON(http.StatusOK, gin.H{
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"data": gin.H{
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"id": product.ID,
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"viewCount": product.ViewCount,
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"counted": counted,
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},
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})
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}
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func buildViewerFingerprint(c *gin.Context) string {
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clientIP := strings.TrimSpace(c.ClientIP())
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userAgent := strings.TrimSpace(c.GetHeader("User-Agent"))
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language := strings.TrimSpace(c.GetHeader("Accept-Language"))
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return clientIP + "|" + userAgent + "|" + language
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}
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func sanitizeForPublic(items []models.Product) []models.Product {
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out := make([]models.Product, len(items))
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for i, item := range items {
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item.Codes = nil
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item.FixedContent = ""
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out[i] = item
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}
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return out
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}
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