update

src/components/StreetSnap.astro

@@ -23,6 +23,7 @@ const images = (snap?.images ?? [])
   .map((im) => ({
     id: im.id,
     url: full(im.image || ""),
+    raw: im.image || "", // 相对路径：收藏快照存相对地址，不把宿主/端口写死进库
     name: im.name || "",
   }))
   .filter((im) => im.url)
@@ -37,6 +38,10 @@ const displayTitle = (snap?.title || "").replace(/\t/g, " · ")
 <div
   id="street-snap-view"
   x-data="streetSnapView()"
+  data-fav-type="snap_image"
+  data-gallery-uid={snap?.id ?? ""}
+  data-gallery-title={displayTitle}
+  data-gallery-brand=""
   class="min-h-screen bg-white text-black font-sans selection:bg-black selection:text-white"
 >
   {
@@ -61,8 +66,10 @@ const displayTitle = (snap?.title || "").replace(/\t/g, " · ")
                   data-image-index={i}
                   data-image-url={im.url}
                   data-image-name={im.name}
+                  data-fav-id={im.id}
+                  data-fav-url={im.raw}
                   @click={`openLb(${i})`}
-                  class="bg-[#f2f2f2] cursor-zoom-in group"
+                  class="relative bg-[#f2f2f2] cursor-zoom-in group"
                 >
                   <img
                     src={im.url}
@@ -72,6 +79,21 @@ const displayTitle = (snap?.title || "").replace(/\t/g, " · ")
                     class="w-full aspect-[3/4] object-cover group-hover:opacity-90 transition-opacity"
                   />
 
+                  {/* 单图收藏：hover 显示，已收藏常驻实心 */}
+                  <button
+                    type="button"
+                    data-fav-id={im.id}
+                    data-fav-url={im.raw}
+                    @click.stop="toggleFav($el.dataset.favId, $el.dataset.favUrl)"
+                    :class="isFav($el.dataset.favId) ? 'is-fav opacity-100' : 'opacity-0 group-hover:opacity-100'"
+                    class="fav-btn absolute right-2 top-2 z-10 w-8 h-8 rounded-full border border-black/15 bg-white/80 text-[#111] flex items-center justify-center backdrop-blur-md hover:bg-black/5 hover:border-black/30 transition-all cursor-pointer"
+                    aria-label={t('save')}
+                  >
+                    <svg class="w-4 h-4" viewBox="0 0 24 24" stroke="currentColor" stroke-width="1.6" stroke-linecap="round" stroke-linejoin="round">
+                      <path d="M12 21C12 21 4 14.5 4 8.8C4 6.1 6.1 4 8.7 4C10.3 4 11.5 4.8 12 6C12.5 4.8 13.7 4 15.3 4C17.9 4 20 6.1 20 8.8C20 14.5 12 21 12 21Z"/>
+                    </svg>
+                  </button>
+
                   {im.name && (
                     <figcaption class="text-[11px] font-mono uppercase tracking-widest text-[#999] mt-2">
                       {im.name}
@@ -114,6 +136,18 @@ const displayTitle = (snap?.title || "").replace(/\t/g, " · ")
         x-text="`${lbIndex + 1} / ${imageCount}`"
       ></div>
 
+      <button
+        type="button"
+        @click.stop="toggleFav(currentFavId, currentFavUrl)"
+        :class="isFav(currentFavId) ? 'is-fav' : ''"
+        class="fav-btn absolute top-[18px] right-[70px] z-30 w-10 h-10 rounded-full border border-black/15 bg-white/75 text-[#111] flex items-center justify-center backdrop-blur-md hover:bg-black/5 hover:border-black/30 transition-all cursor-pointer"
+        aria-label={t('save')}
+      >
+        <svg class="w-[18px] h-[18px]" viewBox="0 0 24 24" stroke="currentColor" stroke-width="1.6" stroke-linecap="round" stroke-linejoin="round">
+          <path d="M12 21C12 21 4 14.5 4 8.8C4 6.1 6.1 4 8.7 4C10.3 4 11.5 4.8 12 6C12.5 4.8 13.7 4 15.3 4C17.9 4 20 6.1 20 8.8C20 14.5 12 21 12 21Z"/>
+        </svg>
+      </button>
+
       <button
         type="button"
         @click="closeLb()"
@@ -221,6 +255,9 @@ const displayTitle = (snap?.title || "").replace(/\t/g, " · ")
 </div>
 
 <script>
+  import { getUser } from "@/lib/api"
+  import { isFavorited, toggleImageFavorite, checkFavorited } from "@/lib/favorites"
+
   document.addEventListener("alpine:init", () => {
     Alpine.data("streetSnapView", () => ({
       lbOpen: false,
@@ -231,11 +268,49 @@ const displayTitle = (snap?.title || "").replace(/\t/g, " · ")
       imageCount: 0,
       currentImageName: "",
 
+      // 单图收藏态：已收藏的图片 id 列表（本地即时 + 服务端校正）
+      favIds: [],
+      favType: "snap_image",
+      galleryUid: "",
+      galleryTitle: "",
+      galleryBrand: "",
+
       init() {
+        this.favType = this.$el.dataset.favType || "snap_image"
+        this.galleryUid = this.$el.dataset.galleryUid || ""
+        this.galleryTitle = this.$el.dataset.galleryTitle || ""
+        this.galleryBrand = this.$el.dataset.galleryBrand || ""
+
         this.imageCount = document.querySelectorAll(
           "#snap-gallery [data-image-index]"
         ).length
         this.initThumbLazyLoading()
+        this.initImageFavs()
+        this.maybeLocateImageFromUrl()
+      },
+
+      // ?img=<图片uid> 深链：个人中心点单图收藏 → 打开所属图集并滚动定位到该图。
+      // 默认只定位 + 短暂高亮，不弹灯箱（不打断浏览）；显式带 &lb=1 才自动开灯箱。
+      maybeLocateImageFromUrl() {
+        if (typeof window === "undefined") return
+        const q = new URLSearchParams(window.location.search)
+        const want = q.get("img")
+        if (!want) return
+        const figures = Array.from(
+          document.querySelectorAll<HTMLElement>("#snap-gallery [data-fav-id]"),
+        )
+        const idx = figures.findIndex((el) => el.dataset.favId === want)
+        if (idx < 0) return
+        const fig = figures[idx] as HTMLElement
+        requestAnimationFrame(() => {
+          if (q.get("lb") === "1") {
+            this.openLb(idx)
+            return
+          }
+          fig.scrollIntoView({ behavior: "smooth", block: "center" })
+          fig.classList.add("locate-flash")
+          setTimeout(() => fig.classList.remove("locate-flash"), 2600)
+        })
       },
 
       getImageElement(index: number) {
@@ -250,6 +325,67 @@ const displayTitle = (snap?.title || "").replace(/\t/g, " · ")
         return this.getImageElement(index)?.dataset.imageName || ""
       },
 
+      // ===== 单图收藏 =====
+      getImageFavId(index: number) {
+        return this.getImageElement(index)?.dataset.favId || ""
+      },
+
+      // 收藏用的图地址：读 figure 上的相对路径（存库时不带宿主）
+      getImageFavUrl(index: number) {
+        return this.getImageElement(index)?.dataset.favUrl || ""
+      },
+
+      allImageFavIds(): string[] {
+        return Array.from(
+          document.querySelectorAll<HTMLElement>("#snap-gallery [data-fav-id]"),
+        )
+          .map((el) => el.dataset.favId || "")
+          .filter(Boolean)
+      },
+
+      initImageFavs() {
+        const ids = this.allImageFavIds()
+        if (!ids.length) return
+        this.favIds = ids.filter((id) => isFavorited(id))
+        checkFavorited(ids).then((hit) => {
+          this.favIds = ids.filter((id) => hit.has(id))
+        })
+      },
+
+      isFav(id: string) {
+        return !!id && this.favIds.includes(id)
+      },
+
+      toggleFav(id: string, url: string) {
+        if (!id) return
+        // 未登录：收藏无处落盘（服务端无 token、本地无用户 key），引导登录后回跳本篇
+        if (!getUser()) {
+          const back = window.location.pathname + window.location.search
+          const loc = window.location.pathname.startsWith("/cn") ? "cn" : "en"
+          window.location.href = `/${loc}/login?redirect=${encodeURIComponent(back)}`
+          return
+        }
+        toggleImageFavorite({
+          imageId: id,
+          type: this.favType === "snap_image" ? "snap_image" : "runway_image",
+          imageUrl: url,
+          parentUid: this.galleryUid,
+          title: this.galleryTitle,
+          brand: this.galleryBrand,
+        })
+        this.favIds = this.isFav(id)
+          ? this.favIds.filter((x: string) => x !== id)
+          : [...this.favIds, id]
+      },
+
+      get currentFavId() {
+        return this.getImageFavId(this.lbIndex)
+      },
+
+      get currentFavUrl() {
+        return this.getImageFavUrl(this.lbIndex)
+      },
+
       openLb(index = 0) {
         if (!this.imageCount) return
         this.lbIndex = this.normalizeIndex(index)
@@ -345,4 +481,19 @@ const displayTitle = (snap?.title || "").replace(/\t/g, " · ")
   [x-cloak] { display: none !important; }
   .no-scrollbar::-webkit-scrollbar { display: none; }
   .no-scrollbar { -ms-overflow-style: none; scrollbar-width: none; }
+
+  /* 单图收藏爱心：默认描边，已收藏实心 */
+  .fav-btn svg { fill: none; }
+  .fav-btn.is-fav svg { fill: currentColor; }
+
+  /* ?img= 深链定位提示：短暂黑色描边闪烁 */
+  .locate-flash {
+    outline: 3px solid #111;
+    outline-offset: 4px;
+  }
+
+  /* 触屏没有 hover，收藏按钮常驻显示，否则永远点不到 */
+  @media (hover: none) {
+    .fav-btn { opacity: 1 !important; }
+  }
 </style>