From af0b004a79b06c801c579dea1834483a347abb75 Mon Sep 17 00:00:00 2001
From: Sam Becker <sam@sambecker.com>
Date: Mon, 6 May 2024 21:34:04 -0500
Subject: [PATCH] Auto-generate blur data when editing photos

---
 src/admin/EditButton.tsx                     | 19 ++++++-------------
 src/app/admin/photos/[photoId]/edit/page.tsx | 11 ++++++++---
 src/photo/PhotoEditPageClient.tsx            |  3 +++
 src/photo/form/PhotoForm.tsx                 | 17 +++++++++++++----
 src/services/next-image.ts                   |  5 +++++
 5 files changed, 35 insertions(+), 20 deletions(-)

diff --git a/src/admin/EditButton.tsx b/src/admin/EditButton.tsx
index 113aec65..112e5fd9 100644
--- a/src/admin/EditButton.tsx
+++ b/src/admin/EditButton.tsx
@@ -1,24 +1,17 @@
-import Link from 'next/link';
+import PathLoaderButton from '@/components/PathLoaderButton';
 import { FaRegEdit } from 'react-icons/fa';
 
 export default function EditButton ({
   href,
-  label = 'Edit',
 }: {
   href: string,
-  label?: string,
 }) {
   return (
-    <Link
-      title={label}
-      href={href}
-      className="button"
-      prefetch={false}
+    <PathLoaderButton
+      path={href}
+      icon={<FaRegEdit size={15} className="translate-y-[0.5px]" />}
     >
-      <FaRegEdit className="translate-y-[-0.5px]" />
-      <span className="hidden sm:inline-block">
-        {label}
-      </span>
-    </Link>
+      Edit
+    </PathLoaderButton>
   );
 }
diff --git a/src/app/admin/photos/[photoId]/edit/page.tsx b/src/app/admin/photos/[photoId]/edit/page.tsx
index b89549d5..38d9fa0c 100644
--- a/src/app/admin/photos/[photoId]/edit/page.tsx
+++ b/src/app/admin/photos/[photoId]/edit/page.tsx
@@ -3,8 +3,8 @@ import { getPhotoNoStore, getUniqueTagsCached } from '@/photo/cache';
 import { PATH_ADMIN } from '@/site/paths';
 import PhotoEditPageClient from '@/photo/PhotoEditPageClient';
 import { AI_TEXT_GENERATION_ENABLED } from '@/site/config';
-import { resizeImageFromUrl } from '@/photo/server';
-import { getNextImageUrlForRequest } from '@/services/next-image';
+import { blurImageFromUrl, resizeImageFromUrl } from '@/photo/server';
+import { getNextImageUrlForManipulation } from '@/services/next-image';
 
 export default async function PhotoEditPage({
   params: { photoId },
@@ -21,15 +21,20 @@ export default async function PhotoEditPage({
   
   // Only generate image thumbnails when AI generation is enabled
   const imageThumbnailBase64 = AI_TEXT_GENERATION_ENABLED
-    ? await resizeImageFromUrl(getNextImageUrlForRequest(photo.url,  640))
+    ? await resizeImageFromUrl(getNextImageUrlForManipulation(photo.url))
     : '';
 
+  const blurData = await blurImageFromUrl(
+    getNextImageUrlForManipulation(photo.url)
+  );
+
   return (
     <PhotoEditPageClient {...{
       photo,
       uniqueTags,
       hasAiTextGeneration,
       imageThumbnailBase64,
+      blurData,
     }} />
   );
 };
diff --git a/src/photo/PhotoEditPageClient.tsx b/src/photo/PhotoEditPageClient.tsx
index 94561417..77b83492 100644
--- a/src/photo/PhotoEditPageClient.tsx
+++ b/src/photo/PhotoEditPageClient.tsx
@@ -22,11 +22,13 @@ export default function PhotoEditPageClient({
   uniqueTags,
   hasAiTextGeneration,
   imageThumbnailBase64,
+  blurData,
 }: {
   photo: Photo
   uniqueTags: TagsWithMeta
   hasAiTextGeneration: boolean
   imageThumbnailBase64: string
+  blurData: string
 }) {
   const seedExifData = { url: photo.url };
 
@@ -86,6 +88,7 @@ export default function PhotoEditPageClient({
         updatedExifData={hasExifDataBeenFound
           ? updatedExifData
           : undefined}
+        updatedBlurData={blurData}
         uniqueTags={uniqueTags}
         aiContent={hasAiTextGeneration ? aiContent : undefined}
         onTitleChange={setUpdatedTitle}
diff --git a/src/photo/form/PhotoForm.tsx b/src/photo/form/PhotoForm.tsx
index f1b81c2e..674c8ff1 100644
--- a/src/photo/form/PhotoForm.tsx
+++ b/src/photo/form/PhotoForm.tsx
@@ -27,22 +27,25 @@ import Spinner from '@/components/Spinner';
 import usePreventNavigation from '@/utility/usePreventNavigation';
 import { useAppState } from '@/state/AppState';
 import UpdateBlurDataButton from '../UpdateBlurDataButton';
+import { getNextImageUrlForManipulation } from '@/services/next-image';
 
 const THUMBNAIL_SIZE = 300;
 
 export default function PhotoForm({
+  type = 'create',
   initialPhotoForm,
   updatedExifData,
-  type = 'create',
+  updatedBlurData,
   uniqueTags,
   aiContent,
   onTitleChange,
   onTextContentChange,
   onFormStatusChange,
 }: {
+  type?: 'create' | 'edit'
   initialPhotoForm: Partial<PhotoFormData>
   updatedExifData?: Partial<PhotoFormData>
-  type?: 'create' | 'edit'
+  updatedBlurData?: string
   uniqueTags?: TagsWithMeta
   aiContent?: AiContent
   onTitleChange?: (updatedTitle: string) => void
@@ -110,6 +113,12 @@ export default function PhotoForm({
 
   const url = formData.url ?? '';
 
+  useEffect(() =>
+    setFormData(data => updatedBlurData
+      ? { ...data, blurData: updatedBlurData }
+      : data)
+  , [updatedBlurData]);
+
   useEffect(() =>
     setFormData(data => aiContent?.title
       ? { ...data, title: aiContent?.title }
@@ -184,9 +193,9 @@ export default function PhotoForm({
           shouldConfirm={Boolean(formData.semanticDescription)}
         />;
       case 'blurData':
-        return type === 'edit'
+        return shouldDebugBlur && type === 'edit' && formData.url
           ? <UpdateBlurDataButton
-            photoUrl={formData.url}
+            photoUrl={getNextImageUrlForManipulation(formData.url)}
             onUpdatedBlurData={blurData =>
               setFormData(data => ({ ...data, blurData }))}
           />
diff --git a/src/services/next-image.ts b/src/services/next-image.ts
index 9b8cc116..13ce7ffe 100644
--- a/src/services/next-image.ts
+++ b/src/services/next-image.ts
@@ -23,3 +23,8 @@ export const getNextImageUrlForRequest = (
 
   return url.toString();
 };
+
+// Generate small, low-bandwidth images for quick manipulations such as
+// generating blur data or image thumbnails for AI text generation
+export const getNextImageUrlForManipulation = (imageUrl: string) =>
+  getNextImageUrlForRequest(imageUrl, 640, 90);