feat(global item): share properties accross items using global item ID

prisma/schema.prisma

@@ -45,12 +45,10 @@ model Item {
   urlId        Int     @map("url_id")
   wikidataId   String? @map("wikidata_id")
   itemOrder    Int     @default(0) @map("item_order")
-  globalItemId String  @unique @map("global_item_id")
+  globalItemId String  @map("global_item_id")
 
   // Relations
   url               Url               @relation(fields: [urlId], references: [id], onDelete: Cascade)
-  itemProperties    ItemProperty[]    @relation("ItemToItemProperty")
-  deletedProperties DeletedProperty[]
 
   @@map("items")
 }
@@ -62,7 +60,6 @@ model ItemProperty {
   value        String
 
   // Relations
-  item     Item     @relation("ItemToItemProperty", fields: [globalItemId], references: [globalItemId], onDelete: Cascade)
   property Property @relation(fields: [propertyId], references: [id], onDelete: Cascade)
 
   @@id([globalItemId, propertyId])
@@ -90,7 +87,6 @@ model DeletedProperty {
 
   // Relations
   url      Url      @relation(fields: [urlId], references: [id], onDelete: Cascade)
-  item     Item     @relation(fields: [globalItemId], references: [globalItemId], onDelete: Cascade)
   property Property @relation(fields: [propertyId], references: [id], onDelete: Cascade)
 
   @@id([urlId, globalItemId, propertyId])

src/app/api/urls/[encodedUrl]/items/[itemId]/route.ts

@@ -6,10 +6,12 @@ import { Item } from '@/types/database';
 // PUT /api/urls/[encodedUrl]/items/[itemId] - Update a specific item
 export async function PUT(
   request: NextRequest,
-  { params }: { params: { encodedUrl: string; itemId: string } }
+  { params }: { params: Promise<{ encodedUrl: string; itemId: string }> }
 ) {
   try {
-    const { encodedUrl, itemId } = params;
+    // Await params before accessing properties
+    const resolvedParams = await params;
+    const { encodedUrl, itemId } = resolvedParams;
     const url = decodeURIComponent(encodedUrl);
     const item: Item = await request.json();
     
@@ -46,12 +48,16 @@ export async function PUT(
     return NextResponse.json({ success: true, itemId });
   } catch (error) {
     console.error('[API] Update error:', error);
+    
+    // Await params for error handling too
+    const resolvedParams = await params;
+    
     return NextResponse.json(
       { 
         error: 'Database error', 
         details: error instanceof Error ? error.message : 'Unknown error',
-        itemId: params.itemId,
-        url: decodeURIComponent(params.encodedUrl)
+        itemId: resolvedParams.itemId,
+        url: decodeURIComponent(resolvedParams.encodedUrl)
       },
       { status: 500 }
     );
@@ -61,10 +67,12 @@ export async function PUT(
 // DELETE /api/urls/[encodedUrl]/items/[itemId] - Delete a specific item
 export async function DELETE(
   request: NextRequest,
-  { params }: { params: { encodedUrl: string; itemId: string } }
+  { params }: { params: Promise<{ encodedUrl: string; itemId: string }> }
 ) {
-  const url = decodeURIComponent(params.encodedUrl);
-  const itemId = params.itemId;
+  // Await params before accessing properties
+  const resolvedParams = await params;
+  const url = decodeURIComponent(resolvedParams.encodedUrl);
+  const itemId = resolvedParams.itemId;
   
   console.log('[API] Deleting item', itemId, 'from URL', url);
 

src/lib/database.ts

@@ -120,23 +120,13 @@ export async function insertItemByUrl(url: string, item: Item): Promise<void> {
     
     console.log(`[DB] URL ID: ${urlRecord.id}`);
     
-    // 2. Check if this specific item already exists for this URL
-    const existingItem = await tx.item.findUnique({
-      where: { id: item.id }
-    });
-    
-    // 3. Find or create globalItemId based on item name
+    // 2. ALWAYS find existing globalItemId by name first (this is the key fix)
     let globalItemId: string;
     
-    if (existingItem) {
-      // Use existing globalItemId if item already exists
-      globalItemId = existingItem.globalItemId;
-      console.log(`[DB] Using existing global item ID: ${globalItemId}`);
-    } else {
-      // For new items, find existing globalItemId by name or create new one
+    if (item.name.trim()) {
+      // Look for existing global item with the same name
       const namePropertyId = await getOrCreateProperty(tx, 'name');
       
-      // Look for existing global item with the same name
       const existingGlobalItem = await tx.itemProperty.findFirst({
         where: {
           propertyId: namePropertyId,
@@ -145,25 +135,29 @@ export async function insertItemByUrl(url: string, item: Item): Promise<void> {
         select: { globalItemId: true }
       });
       
-      if (existingGlobalItem && item.name.trim()) {
+      if (existingGlobalItem) {
         // Use existing globalItemId for items with the same name
         globalItemId = existingGlobalItem.globalItemId;
         console.log(`[DB] Found existing global item ID for name "${item.name}": ${globalItemId}`);
       } else {
-        // Create new globalItemId for new names or empty names
+        // Create new globalItemId for new names
         globalItemId = uuidv4();
-        console.log(`[DB] Created new global item ID: ${globalItemId}`);
+        console.log(`[DB] Created new global item ID for new name "${item.name}": ${globalItemId}`);
       }
+    } else {
+      // For empty names, always create new globalItemId
+      globalItemId = uuidv4();
+      console.log(`[DB] Created new global item ID for empty name: ${globalItemId}`);
     }
     
-    // 4. Get max order for new items
+    // 3. Get max order for new items
     const maxOrder = await tx.item.findFirst({
       where: { urlId: urlRecord.id },
       orderBy: { itemOrder: 'desc' },
       select: { itemOrder: true }
     });
     
-    // 5. Upsert the item record (unique by item.id)
+    // 4. Upsert the item record (unique by item.id)
     await tx.item.upsert({
       where: { id: item.id },
       update: {
@@ -180,7 +174,7 @@ export async function insertItemByUrl(url: string, item: Item): Promise<void> {
       }
     });
     
-    // 6. Handle all properties (core + custom)
+    // 5. Handle all properties (core + custom)
     const allProperties = [
       ['name', item.name],
       ['description', item.description],
@@ -239,11 +233,19 @@ export async function deleteItemByUrl(url: string, itemId: string): Promise<void
       where: { id: itemId }
     });
     
-    // Clean up item properties for this global item
-    await tx.itemProperty.deleteMany({
+    // Check if this is the last item with this globalItemId
+    const remainingItems = await tx.item.count({
       where: { globalItemId: item.globalItemId }
     });
     
+    // Only delete global properties if this was the last item with this globalItemId
+    if (remainingItems === 0) {
+      await tx.itemProperty.deleteMany({
+        where: { globalItemId: item.globalItemId }
+      });
+      console.log(`[DB] Cleaned up global properties for globalItemId: ${item.globalItemId}`);
+    }
+    
     console.log(`[DB] Item ${itemId} deleted successfully`);
   });
 }