Fix admin logo upload previews

admin/admin.css

@@ -400,6 +400,7 @@ p {
 .breadcrumb,
 .panel-note,
 .field-path,
+.media-upload-hint,
 .block-meta,
 .group-desc,
 .status,
@@ -1103,6 +1104,13 @@ textarea {
   line-height: 1.42;
 }
 
+.editor-error-note {
+  border-radius: var(--launcher-radius-control);
+  background: rgba(255, 116, 116, 0.09);
+  color: #ffd8d8;
+  padding: 1rem;
+}
+
 .service-media-field {
   min-width: 0;
 }
@@ -1213,14 +1221,35 @@ textarea {
   height: 2.78rem;
   place-items: center;
   overflow: hidden;
+  border: 1px solid rgba(255, 255, 255, 0.16);
   border-radius: var(--launcher-radius-circle);
-  background: rgba(255, 255, 255, 0.055);
+  background:
+    linear-gradient(45deg, rgba(255, 255, 255, 0.18) 25%, transparent 25% 75%, rgba(255, 255, 255, 0.18) 75%),
+    linear-gradient(45deg, rgba(255, 255, 255, 0.18) 25%, transparent 25% 75%, rgba(255, 255, 255, 0.18) 75%),
+    rgba(18, 18, 20, 0.92);
+  background-position:
+    0 0,
+    6px 6px,
+    0 0;
+  background-size:
+    12px 12px,
+    12px 12px,
+    auto;
   color: rgba(255, 255, 255, 0.62);
   font-size: 0.78rem;
   text-transform: none;
 }
 
-.service-media-preview img,
+.service-media-preview img {
+  position: absolute;
+  inset: 0.28rem;
+  display: block;
+  width: calc(100% - 0.56rem);
+  height: calc(100% - 0.56rem);
+  border-radius: inherit;
+  object-fit: contain;
+}
+
 .service-media-preview video {
   position: absolute;
   inset: 0;
@@ -1231,6 +1260,28 @@ textarea {
   object-fit: cover;
 }
 
+.service-media-preview.is-solid-dark {
+  border-color: rgba(255, 255, 255, 0.34);
+  box-shadow:
+    inset 0 0 0 1px rgba(255, 255, 255, 0.08),
+    0 0 0 1px rgba(255, 255, 255, 0.08);
+}
+
+.media-upload-hint {
+  font-size: 0.72rem;
+  font-weight: 720;
+  line-height: 1.32;
+  text-transform: none;
+}
+
+.media-upload-hint:empty {
+  display: none;
+}
+
+.media-upload-hint:not(:empty) {
+  color: rgba(255, 228, 170, 0.9);
+}
+
 .media-upload-error {
   color: #ffd2d2;
   font-size: 0.72rem;

admin/admin.js

@@ -362,6 +362,12 @@ function mediaKindFromValue(value) {
   return null;
 }
 
+function shouldWarnAboutSolidLogoBackground(editableField) {
+  const path = String(editableField?.path || "").toLowerCase();
+  const label = String(editableField?.label || "").toLowerCase();
+  return /logo|icon|wordmark|логотип|икон/.test(`${path} ${label}`);
+}
+
 function uploadBucketForField(block, editableField) {
   const path = editableField.path.toLowerCase();
   const currentValue = String(getByPath(block, editableField.path) ?? "").toLowerCase();
@@ -773,6 +779,19 @@ function setStructuralControlsDisabled(disabled) {
   }
 }
 
+function renderEditorError(error) {
+  console.error(error);
+  el.empty.classList.add("hidden");
+  el.form.classList.remove("hidden");
+  el.contentFields.innerHTML = "";
+
+  const note = document.createElement("div");
+  note.className = "empty-note editor-error-note";
+  note.textContent = `Редактор не смог отрисовать поля блока: ${error.message}`;
+  el.contentFields.append(note);
+  setStatus(`Ошибка редактора: ${error.message}`);
+}
+
 function renderEditor() {
   const region = activeRegion();
   const block = activeBlock();
@@ -801,13 +820,24 @@ function renderEditor() {
   el.enabled.disabled = isStatic;
   el.enabled.closest(".toggle-row").hidden = isStatic;
   setStructuralControlsDisabled(isStatic);
+
+  try {
     renderContentFields(block);
+  } catch (error) {
+    renderEditorError(error);
+  }
+
   el.json.value = JSON.stringify(block, null, 2);
 }
 
 function renderAll() {
+  try {
     renderRegions();
     renderEditor();
+  } catch (error) {
+    console.error(error);
+    setStatus(`Ошибка рендера админки: ${error.message}`);
+  }
 }
 
 function syncBlockFromFields() {
@@ -840,8 +870,62 @@ function groupEditableFields(block) {
   return groups;
 }
 
-function renderMediaPreview(preview, value) {
+function resetMediaPreview(preview, hint) {
+  preview.classList.remove("is-image", "is-video", "is-solid-dark");
   preview.innerHTML = "";
+  preview.title = "";
+  if (hint) hint.textContent = "";
+}
+
+function analyzeLogoPreview(image, preview, hint, editableField) {
+  if (!hint || !shouldWarnAboutSolidLogoBackground(editableField)) return;
+
+  try {
+    const sampleSize = 24;
+    const canvas = document.createElement("canvas");
+    const context = canvas.getContext("2d", { willReadFrequently: true });
+    if (!context) return;
+
+    canvas.width = sampleSize;
+    canvas.height = sampleSize;
+    context.drawImage(image, 0, 0, sampleSize, sampleSize);
+    const data = context.getImageData(0, 0, sampleSize, sampleSize).data;
+    let opaque = 0;
+    let edgeOpaque = 0;
+    let edgeDark = 0;
+
+    for (let y = 0; y < sampleSize; y += 1) {
+      for (let x = 0; x < sampleSize; x += 1) {
+        const offset = (y * sampleSize + x) * 4;
+        const alpha = data[offset + 3];
+        if (alpha < 240) continue;
+
+        opaque += 1;
+        const isEdge = x <= 1 || y <= 1 || x >= sampleSize - 2 || y >= sampleSize - 2;
+        const isDark = data[offset] + data[offset + 1] + data[offset + 2] < 66;
+
+        if (isEdge) {
+          edgeOpaque += 1;
+          if (isDark) edgeDark += 1;
+        }
+      }
+    }
+
+    const total = sampleSize * sampleSize;
+    const edgeRatio = edgeOpaque ? edgeDark / edgeOpaque : 0;
+    const opaqueRatio = opaque / total;
+
+    if (opaqueRatio > 0.92 && edgeRatio > 0.82) {
+      preview.classList.add("is-solid-dark");
+      hint.textContent = "Файл с непрозрачным тёмным фоном. Для логотипа на тёмном интерфейсе лучше PNG/SVG с прозрачностью.";
+    }
+  } catch {
+    // External images can be blocked by canvas CORS. Preview still works, just without diagnostics.
+  }
+}
+
+function renderMediaPreview(preview, value, hint = null, editableField = null) {
+  resetMediaPreview(preview, hint);
 
   const src = adminPreviewUrl(value);
   const kind = mediaKindFromValue(value);
@@ -853,6 +937,7 @@ function renderMediaPreview(preview, value) {
 
   if (kind === "video") {
     const video = document.createElement("video");
+    preview.classList.add("is-video");
     video.src = src;
     video.autoplay = true;
     video.loop = true;
@@ -864,12 +949,15 @@ function renderMediaPreview(preview, value) {
 
   if (kind === "image") {
     const image = document.createElement("img");
+    preview.classList.add("is-image");
     image.src = src;
     image.alt = "";
     image.loading = "lazy";
+    image.addEventListener("load", () => analyzeLogoPreview(image, preview, hint, editableField));
     image.addEventListener("error", () => {
-      preview.innerHTML = "";
+      resetMediaPreview(preview, hint);
       preview.textContent = "FILE";
+      if (hint) hint.textContent = "Превью не загрузилось. Проверьте путь или внешний URL.";
     });
     preview.append(image);
     return;
@@ -878,13 +966,13 @@ function renderMediaPreview(preview, value) {
   preview.textContent = "FILE";
 }
 
-function updateMediaFieldValue({ block, editableField, hiddenInput, urlInput, fileName, preview, value }) {
+function updateMediaFieldValue({ block, editableField, hiddenInput, urlInput, fileName, preview, hint, value }) {
   hiddenInput.value = value;
   urlInput.value = value;
   fileName.textContent = truncateText(fileNameFromUrl(value), 28);
   fileName.title = fileNameFromUrl(value);
   setByPath(block, editableField.path, value);
-  renderMediaPreview(preview, value);
+  renderMediaPreview(preview, value, hint, editableField);
 
   if (activeBlock() === block) {
     el.json.value = JSON.stringify(block, null, 2);
@@ -911,6 +999,7 @@ function renderMediaField({ block, editableField, grid }) {
   const urlSourceButton = document.createElement("button");
   const preview = document.createElement("div");
   const path = document.createElement("span");
+  const hint = document.createElement("span");
   const error = document.createElement("span");
   const inputId = `media-${editableField.path.replace(/[^a-z0-9_-]+/gi, "-")}-${Math.random().toString(36).slice(2)}`;
   let source = /^(https?:)?\/\//i.test(value) ? "url" : "file";
@@ -971,10 +1060,11 @@ function renderMediaField({ block, editableField, grid }) {
   sourceSwitch.append(fileSourceButton, urlSourceButton);
 
   preview.className = "service-media-preview";
-  renderMediaPreview(preview, value);
+  renderMediaPreview(preview, value, hint, editableField);
 
   path.className = "field-path";
   path.textContent = `${editableField.path} -> assets/uploads/${uploadBucketForField(block, editableField)}`;
+  hint.className = "media-upload-hint";
   error.className = "media-upload-error";
 
   fileSourceButton.addEventListener("click", () => setSource("file"));
@@ -991,6 +1081,7 @@ function renderMediaField({ block, editableField, grid }) {
       urlInput,
       fileName,
       preview,
+      hint,
       value: urlInput.value,
     });
   });
@@ -1027,6 +1118,7 @@ function renderMediaField({ block, editableField, grid }) {
         urlInput,
         fileName,
         preview,
+        hint,
         value: payload.url,
       });
       setSource("file");
@@ -1042,7 +1134,7 @@ function renderMediaField({ block, editableField, grid }) {
 
   setSource(source);
   control.append(fileControl, urlInput, sourceSwitch, preview);
-  container.append(labelRow, hiddenInput, control, path, error);
+  container.append(labelRow, hiddenInput, control, path, hint, error);
   grid.append(container);
 }
 

content/pages/home.json

@@ -34,7 +34,7 @@
             "target": ""
           }
         ],
-        "logoSrc": "./assets/webflow/images/69ad964d951f9d17cc5a919e_logo-app.svg"
+        "logoSrc": "./assets/uploads/images/static-elements/dclogo_darck-mquq1l13-transparent.png"
       },
       "notifications": [
         {