refactor(scan): reset upload form state after successful diagnosis

- Restore setFileName(null) and setPreviewUrl(null) in the mutation onSuccess callback.
- Ensure the file upload area resets to its default state immediately after a successful scan, preparing the UI for the next input.

apps/web/src/pages/scan-page.tsx

@@ -18,12 +18,15 @@ import { Modal } from "@/components/ui/modal";
 import type { DiagnosisRecord } from "@zeavis/shared";
 import { apiClient } from "@/lib/api-client";
 import { trackScan, trackDiagnosisResult } from "@/lib/telemetry";
-import { DiagnosisResultView } from "../components/diagnose-result-view"; 
+import { DiagnosisResultView } from "../components/diagnose-result-view";
 
 export function ScanPage() {
   const [fileName, setFileName] = useState<string | null>(null);
   const [previewUrl, setPreviewUrl] = useState<string | null>(null);
-  const [imageDimensions, setImageDimensions] = useState<{ width: number; height: number } | null>(null);
+  const [imageDimensions, setImageDimensions] = useState<{
+    width: number;
+    height: number;
+  } | null>(null);
   const inputRef = useRef<HTMLInputElement | null>(null);
   const imageRef = useRef<HTMLImageElement | null>(null);
   const navigate = useNavigate();
@@ -36,6 +39,8 @@ export function ScanPage() {
       queryClient.invalidateQueries({ queryKey: ["diagnoses"] });
       setDiagnosisPreview(diagnosis);
       setPreviewOpen(true);
+      setFileName(null);
+      setPreviewUrl(null);
       if (inputRef.current) inputRef.current.value = "";
     },
     onError: () => {
@@ -68,7 +73,8 @@ export function ScanPage() {
   };
 
   const [previewOpen, setPreviewOpen] = useState(false);
-  const [diagnosisPreview, setDiagnosisPreview] = useState<DiagnosisRecord | null>(null);
+  const [diagnosisPreview, setDiagnosisPreview] =
+    useState<DiagnosisRecord | null>(null);
 
   const diagnosesQuery = useQuery({
     queryKey: ["diagnoses"],
@@ -83,7 +89,8 @@ export function ScanPage() {
         <div>
           <h1 className="text-2xl font-bold text-emerald-800">Scan Tanaman</h1>
           <p className="text-gray-500 mt-1 text-md">
-            Unggah foto daun jagung untuk dianalisis oleh sistem AI kami secara real-time.
+            Unggah foto daun jagung untuk dianalisis oleh sistem AI kami secara
+            real-time.
           </p>
         </div>
         <Button asChild variant="outline">
@@ -109,8 +116,12 @@ export function ScanPage() {
                     onClick={() => inputRef.current?.click()}
                   >
                     <Upload className="mx-auto text-green-500 mb-3" size={48} />
-                    <h3 className="font-semibold text-base text-gray-800 mb-1">Seret & Lepas Foto Daun</h3>
+                    <h3 className="font-semibold text-base text-gray-800 mb-1">
-                    <p className="text-xs text-gray-500 mb-3">atau klik untuk memilih file berkas dari perangkat Anda</p>
+                      Seret & Lepas Foto Daun
+                    </h3>
+                    <p className="text-xs text-gray-500 mb-3">
+                      atau klik untuk memilih file berkas dari perangkat Anda
+                    </p>
                     <div className="flex flex-wrap gap-2 justify-center">
                       <div className="bg-green-100 text-green-700 px-3 py-1 rounded-full inline-flex items-center gap-1 text-xs font-medium">
                         <Check size={14} /> PNG, JPG, JPEG, WEBP
@@ -138,7 +149,10 @@ export function ScanPage() {
                       className="w-full max-h-80 object-contain"
                       onLoad={(e) => {
                         const img = e.currentTarget;
-                        setImageDimensions({ width: img.naturalWidth, height: img.naturalHeight });
+                        setImageDimensions({
+                          width: img.naturalWidth,
+                          height: img.naturalHeight,
+                        });
                       }}
                     />
                     {imageDimensions && (
@@ -156,7 +170,9 @@ export function ScanPage() {
                           <div className="absolute bottom-0 left-0 w-6 h-6 border-b-2 border-l-2 border-lime-300" />
                           <div className="absolute bottom-0 right-0 w-6 h-6 border-b-2 border-r-2 border-lime-300" />
                           <div className="text-white text-center flex flex-col gap-1">
-                            <span className="text-xs font-semibold tracking-widest">AREA SCAN</span>
+                            <span className="text-xs font-semibold tracking-widest">
+                              AREA SCAN
+                            </span>
                             <span className="text-[10px] text-lime-200 font-medium">
                               {imageDimensions.width} × {imageDimensions.height}
                             </span>
@@ -218,7 +234,9 @@ export function ScanPage() {
                 <div className="mt-4 p-3 bg-red-50 border border-red-200 rounded-lg text-sm text-red-600">
                   <p className="font-medium">Upload gagal</p>
                   <p className="mt-1">
-                    {mutation.error instanceof Error ? mutation.error.message : "Terjadi kesalahan saat memproses gambar"}
+                    {mutation.error instanceof Error
+                      ? mutation.error.message
+                      : "Terjadi kesalahan saat memproses gambar"}
                   </p>
                 </div>
               )}
@@ -234,32 +252,42 @@ export function ScanPage() {
                 <div className="inline-flex h-9 w-9 items-center justify-center rounded-full">
                   <CircleAlert className="text-emerald-600" size={20} />
                 </div>
-                <h2 className="font-bold text-emerald-800">Panduan Pengambilan Foto</h2>
+                <h2 className="font-bold text-emerald-800">
+                  Panduan Pengambilan Foto
+                </h2>
               </div>
               <ul className="space-y-3">
                 <li className="flex items-center gap-3">
                   <div className="h-9 w-9 rounded bg-[#ECF4E8] flex items-center justify-center shrink-0">
                     <ZoomIn className="text-emerald-600" size={20} />
                   </div>
-                  <div className="text-sm text-slate-700">Jarak 15–30 cm dari daun</div>
+                  <div className="text-sm text-slate-700">
+                    Jarak 15–30 cm dari daun
+                  </div>
                 </li>
                 <li className="flex items-center gap-3">
                   <div className="h-9 w-9 rounded bg-[#ECF4E8] flex items-center justify-center shrink-0">
                     <Sun className="text-emerald-600" size={20} />
                   </div>
-                  <div className="text-sm text-slate-700">Pencahayaan cukup merata</div>
+                  <div className="text-sm text-slate-700">
+                    Pencahayaan cukup merata
+                  </div>
                 </li>
                 <li className="flex items-center gap-3">
                   <div className="h-9 w-9 rounded bg-[#ECF4E8] flex items-center justify-center shrink-0">
                     <AlignCenter className="text-emerald-600" size={20} />
                   </div>
-                  <div className="text-sm text-slate-700">Posisi daun mengisi bingkai dengan jelas</div>
+                  <div className="text-sm text-slate-700">
+                    Posisi daun mengisi bingkai dengan jelas
+                  </div>
                 </li>
                 <li className="flex items-center gap-3">
                   <div className="h-9 w-9 rounded bg-[#ECF4E8] flex items-center justify-center shrink-0">
                     <Camera className="text-emerald-600" size={20} />
                   </div>
-                  <div className="text-sm text-slate-700">Hindari bayangan, pantulan, & blur</div>
+                  <div className="text-sm text-slate-700">
+                    Hindari bayangan, pantulan, & blur
+                  </div>
                 </li>
               </ul>
             </CardContent>
@@ -267,7 +295,9 @@ export function ScanPage() {
 
           <Card className="w-full h-max">
             <CardContent className="px-6 py-4">
-              <h3 className="font-bold text-emerald-800 flex items-center gap-3 mb-4">Persyaratan Berkas</h3>
+              <h3 className="font-bold text-emerald-800 flex items-center gap-3 mb-4">
+                Persyaratan Berkas
+              </h3>
               <div className="flex flex-col gap-2">
                 {[
                   { label: "Format", value: "PNG, JPG, JPEG, WEBP" },
@@ -275,9 +305,17 @@ export function ScanPage() {
                   { label: "Resolusi Min.", value: "512 × 512 px" },
                   { label: "Objek Foto", value: "Daun jagung tunggal" },
                 ].map((r, i) => (
-                  <div key={i} className="flex items-center justify-between py-1.5" style={{ borderBottom: i < 3 ? "1px solid #f0f0f0" : "none" }}>
+                  <div
+                    key={i}
+                    className="flex items-center justify-between py-1.5"
+                    style={{
+                      borderBottom: i < 3 ? "1px solid #f0f0f0" : "none",
+                    }}
+                  >
                     <span className="text-gray-400 text-xs">{r.label}</span>
-                    <span className="text-sm font-medium text-gray-700">{r.value}</span>
+                    <span className="text-sm font-medium text-gray-700">
+                      {r.value}
+                    </span>
                   </div>
                 ))}
               </div>
@@ -319,58 +357,78 @@ export function ScanPage() {
       >
         {diagnosisPreview ? (
           <div className="space-y-6 p-1">
-            
             {/* Warning if expert review is needed */}
             {diagnosisPreview.status === "needs_review" && (
               <div className="rounded-xl border border-amber-200 bg-amber-50 p-4 text-sm text-amber-900 shadow-sm">
-                <strong>Catatan:</strong> Hasil ini masih sementara karena tingkat keyakinan (confidence) di bawah standar minimum.
+                <strong>Catatan:</strong> Hasil ini masih sementara karena
+                tingkat keyakinan (confidence) di bawah standar minimum.
               </div>
             )}
 
             {/* Message if AI fails to process */}
             {diagnosisPreview.failureReason && (
               <div className="rounded-xl border border-red-200 bg-red-50 p-4 text-sm text-red-900 shadow-sm">
-                <strong>Gagal Memproses:</strong> {diagnosisPreview.failureReason}
+                <strong>Gagal Memproses:</strong>{" "}
+                {diagnosisPreview.failureReason}
               </div>
             )}
 
-            <DiagnosisResultView 
+            <DiagnosisResultView
-              imageUrl={previewUrl || diagnosisPreview.imageUrl || "https://placehold.co/600x400?text=Foto+Daun"}
+              imageUrl={
+                previewUrl ||
+                diagnosisPreview.imageUrl ||
+                "https://placehold.co/600x400?text=Foto+Daun"
+              }
               confidence={diagnosisPreview.confidence ?? 0}
-              diseaseName={diagnosisPreview.disease?.commonName ?? "Tidak Diketahui"}
+              diseaseName={
+                diagnosisPreview.disease?.commonName ?? "Tidak Diketahui"
+              }
               scientificName={diagnosisPreview.disease?.label ?? ""}
               riskLevel={diagnosisPreview.disease?.riskLevel ?? "Sedang"}
-              description={diagnosisPreview.disease?.description ?? diagnosisPreview.disease?.summary ?? "Deskripsi tidak tersedia."}
+              description={
+                diagnosisPreview.disease?.description ??
+                diagnosisPreview.disease?.summary ??
+                "Deskripsi tidak tersedia."
+              }
               symptoms={diagnosisPreview.disease?.symptoms ?? []}
               preventions={diagnosisPreview.disease?.recommendations ?? []}
-              medicines={(diagnosisPreview.disease as any)?.medicineRecommendations ?? []}
+              medicines={
+                (diagnosisPreview.disease as any)?.medicineRecommendations ?? []
+              }
             />
 
             {/* All Model Predictions */}
-            {diagnosisPreview.predictions && diagnosisPreview.predictions.length > 0 && (
+            {diagnosisPreview.predictions &&
-              <div className="bg-white rounded-2xl border border-slate-200 shadow-sm p-4 md:p-6 mt-4">
+              diagnosisPreview.predictions.length > 0 && (
-                <h4 className="font-bold text-[#214B11] mb-1">Semua Prediksi Model</h4>
+                <div className="bg-white rounded-2xl border border-slate-200 shadow-sm p-4 md:p-6 mt-4">
-                <p className="text-xs text-slate-500 mb-4">Tebakan alternatif lain dari sistem AI ZeaVis</p>
+                  <h4 className="font-bold text-[#214B11] mb-1">
-                <div className="grid grid-cols-1 sm:grid-cols-2 gap-3">
+                    Semua Prediksi Model
-                  {diagnosisPreview.predictions
+                  </h4>
-                    .sort((a, b) => a.rank - b.rank)
+                  <p className="text-xs text-slate-500 mb-4">
-                    .map((pred) => (
+                    Tebakan alternatif lain dari sistem AI ZeaVis
-                      <div
+                  </p>
-                        key={pred.id}
+                  <div className="grid grid-cols-1 sm:grid-cols-2 gap-3">
-                        className="flex items-center justify-between rounded-xl border border-slate-100 bg-slate-50 p-3 text-sm"
+                    {diagnosisPreview.predictions
-                      >
+                      .sort((a, b) => a.rank - b.rank)
-                        <span className="text-slate-600 font-medium">{pred.modelLabel}</span>
+                      .map((pred) => (
-                        <span className="font-bold text-slate-700">
+                        <div
-                          {(pred.confidence * 100).toFixed(1)}%
+                          key={pred.id}
-                        </span>
+                          className="flex items-center justify-between rounded-xl border border-slate-100 bg-slate-50 p-3 text-sm"
-                      </div>
+                        >
-                    ))}
+                          <span className="text-slate-600 font-medium">
+                            {pred.modelLabel}
+                          </span>
+                          <span className="font-bold text-slate-700">
+                            {(pred.confidence * 100).toFixed(1)}%
+                          </span>
+                        </div>
+                      ))}
+                  </div>
                 </div>
-              </div>
+              )}
-            )}
           </div>
         ) : null}
       </Modal>
     </div>
   );
-}
+}