Missing Field Handling

LabWise/InventoryView.swift

@@ -7,6 +7,10 @@ final class InventoryViewModel {
     var isLoading = false
     var errorMessage: String?
 
+    var missingInfoCount: Int {
+        chemicals.filter(\.isMissingKeyInfo).count
+    }
+
     private let client = ChemicalsClient()
 
     func loadChemicals() async {
@@ -73,6 +77,12 @@ struct InventoryView: View {
                     }
                 } else {
                     List {
+                        if viewModel.missingInfoCount > 0 && !isSelectMode {
+                            Section {
+                                MissingInfoBanner(count: viewModel.missingInfoCount)
+                            }
+                            .listRowBackground(Color.orange.opacity(0.08))
+                        }
                         ForEach(viewModel.chemicals) { chemical in
                             if isSelectMode {
                                 Button {
@@ -204,3 +214,27 @@ struct InventoryView: View {
         }
     }
 }
+
+// MARK: - Missing-info banner
+
+/// Shown above the inventory list when one or more rows are missing required
+/// fields (typically the result of a web spreadsheet import). Mirrors the
+/// amber banner on the web inventory page.
+private struct MissingInfoBanner: View {
+    let count: Int
+
+    var body: some View {
+        HStack(alignment: .top, spacing: 10) {
+            Image(systemName: "exclamationmark.triangle.fill")
+                .foregroundStyle(.orange)
+            VStack(alignment: .leading, spacing: 2) {
+                Text("Missing Key Information")
+                    .font(.subheadline.weight(.semibold))
+                Text("\(count) \(count == 1 ? "item is" : "items are") missing required fields. Tap an item flagged with “Missing info” to see exactly which fields and edit them.")
+                    .font(.caption)
+                    .foregroundStyle(.secondary)
+            }
+        }
+        .padding(.vertical, 4)
+    }
+}