fix(guides): fix hard reload empty state and frame rendering bugs

- Split GuideForm into outer/inner components to gate rendering on
  guide context loading, fixing empty edit form on hard reload
- Add loading state to GuideContext
- Replace URL.createObjectURL in render with useMemo + useEffect cleanup
  to fix memory leak and empty src warning
- Fix frame reorder bug by keying Frame on frame.id instead of index

src/features/guides/components/Frame.tsx

@@ -1,6 +1,7 @@
 import "./Frame.css";
 import type { FrameType, StepType } from "../../../lib/schemas";
 import Step from "./Step";
+import { useEffect, useMemo } from "react";
 
 export default function Frame({
   frame,
@@ -21,6 +22,15 @@ export default function Frame({
   updateTitle: (frameId: string, title: string) => void;
   reOrder: (startIndex: number, endIndex: number) => void;
 }) {
+  const objectUrl = useMemo(
+    () => URL.createObjectURL(frame.file),
+    [frame.file],
+  );
+
+  useEffect(() => {
+    return () => URL.revokeObjectURL(objectUrl);
+  }, [objectUrl]);
+
   return (
     <div className="frame">
       <div className="buttons">
@@ -38,7 +48,6 @@ export default function Frame({
         >
           Down
         </button>
-
         <button
           type="button"
           className="remove"
@@ -47,7 +56,6 @@ export default function Frame({
           Remove Frame
         </button>
       </div>
-
       <label>
         Title
         <input
@@ -56,7 +64,7 @@ export default function Frame({
           onChange={(e) => updateTitle(frame.id, e.target.value)}
         />
       </label>
-      <img src={URL.createObjectURL(frame.file)} alt={frame.title} />
+      <img src={objectUrl} alt={frame.title} />
       <button
         type="button"
         className="add-step"
@@ -64,7 +72,6 @@ export default function Frame({
       >
         Add Step
       </button>
-
       <div className="steps">
         {frame.steps.map((step: StepType, index: number) => (
           <Step

src/features/guides/hooks/useGuideForm.ts

@@ -1,4 +1,4 @@
-import { useState } from "react";
+import { useEffect, useState } from "react";
 import {
   type CompiledGuideType,
   type FrameType,

src/features/guides/routes/GuideForm.tsx

@@ -4,12 +4,9 @@ import useGuideForm from "../hooks/useGuideForm";
 import Frame from "../components/Frame";
 import { useParams } from "react-router";
 import { useGuides } from "../../../lib/contexts/guide.context";
+import type { CompiledGuideType } from "../../../lib/schemas";
 
-export default function GuideForm() {
-  const { id } = useParams();
-  const { guides } = useGuides();
-  const g = guides.find((g) => g.id === id);
-
+function GuideFormInner({ initial }: { initial?: CompiledGuideType }) {
   const {
     guide,
     frames,
@@ -23,8 +20,7 @@ export default function GuideForm() {
     handleRemoveStep,
     handleUpdateStep,
     handleSaveGuide,
-    isEditing,
-  } = useGuideForm(g);
+  } = useGuideForm(initial);
 
   return (
     <div className="new-guide">
@@ -46,13 +42,11 @@ export default function GuideForm() {
             onChange={(e) => handleUpdateDescription(e.target.value)}
           />
         </label>
-
         <FileUpload onChange={handleAddFrames} />
-
         {frames.length > 0 &&
           frames.map((frame, index) => (
             <Frame
-              key={index}
+              key={frame.id}
               frameIndex={index}
               frame={frame}
               onRemove={handleRemoveFrame}
@@ -63,13 +57,21 @@ export default function GuideForm() {
               reOrder={handleReOrderFrames}
             />
           ))}
-
         {frames.length === 0 && <p>No images added yet.</p>}
-
         {frames.length > 0 && <FileUpload onChange={handleAddFrames} />}
-
         <button type="submit">Save</button>
       </form>
     </div>
   );
 }
+
+export default function GuideForm() {
+  const { id } = useParams();
+  const { guides, loading } = useGuides();
+
+  if (loading) return null;
+
+  const initial = id ? guides.find((g) => g.id === id) : undefined;
+
+  return <GuideFormInner initial={initial} />;
+}

src/lib/contexts/guide.context.tsx

@@ -12,28 +12,30 @@ import { useIDB } from "./dbinit.context";
 interface GuideContextValue {
   guides: CompiledGuideType[];
   setGuides: React.Dispatch<React.SetStateAction<CompiledGuideType[]>>;
+  loading: boolean;
 }
 
 const GuideContext = createContext<GuideContextValue | undefined>(undefined);
 
 export function GuideProvider({ children }: { children: ReactNode }) {
   const [guides, setGuides] = useState<CompiledGuideType[]>([]);
+  const [loading, setLoading] = useState(true);
   const { db } = useIDB();
 
   useEffect(() => {
     if (!db) return;
     db.getAll("guides").then((fetchedGuides) => {
-      const sortedGuides = [...fetchedGuides].sort((a, b) => {
-        return (
-          new Date(b.createdAt).getTime() - new Date(a.createdAt).getTime()
-        );
-      });
+      const sortedGuides = [...fetchedGuides].sort(
+        (a, b) =>
+          new Date(b.createdAt).getTime() - new Date(a.createdAt).getTime(),
+      );
       setGuides(sortedGuides);
+      setLoading(false);
     });
   }, [db]);
 
   return (
-    <GuideContext.Provider value={{ guides, setGuides }}>
+    <GuideContext.Provider value={{ guides, setGuides, loading }}>
       {children}
     </GuideContext.Provider>
   );