per-row buttons locking, progress

public/userarea/export_to_lims.js

@@ -330,8 +330,16 @@ document.addEventListener("DOMContentLoaded", () => {
         // Validate first
         clearValidationErrors();
 
+        // Show validating state on the row
+        setRowExporting(gridRow, true);
+        const spinner = gridRow.querySelector(".batch-row-spinner");
+        if (spinner) spinner.innerHTML = '<i class="fas fa-spinner fa-spin"></i> Validating...';
+
         validateRows([{ iddatadb: parseInt(iddatadb), index: parseInt(rowIndex) }])
             .then((validationData) => {
+                setRowExporting(gridRow, false);
+                gridRow.classList.remove("batch-disabled");
+
                 if (!validationData.success) {
                     showExportResult({ success: false, message: validationData.message || "Errore di validazione" });
                     return;
@@ -348,6 +356,9 @@ document.addEventListener("DOMContentLoaded", () => {
                 showConfirmAndExport(iddatadb, btn);
             })
             .catch((error) => {
+                setRowExporting(gridRow, false);
+                gridRow.classList.remove("batch-disabled");
+
                 console.error("Validation error:", error);
                 showExportResult({ success: false, message: "Errore di validazione: " + error.message });
             });
@@ -379,13 +390,29 @@ document.addEventListener("DOMContentLoaded", () => {
             console.log(`Confirmed export for iddatadb: ${iddatadb}`);
             confirmModal.hide();
 
+            const gridRow = btn.closest(".grid-row");
+            setRowExporting(gridRow, true);
+
             try {
-                const gridRow = btn.closest(".grid-row");
                 const data = await sendExport(iddatadb, gridRow);
                 console.log("Export response:", data);
+
+                // Stop spinner, fully restore row
+                setRowExporting(gridRow, false);
+                gridRow.classList.remove("batch-disabled");
+
+                if (!data.success) {
+                    showRowError(gridRow, iddatadb, data.message || "Errore sconosciuto");
+                }
                 showExportResult(data);
             } catch (error) {
                 console.error("Export error:", error);
+
+                // Stop spinner, fully restore row so user can retry
+                setRowExporting(gridRow, false);
+                gridRow.classList.remove("batch-disabled");
+
+                showRowError(gridRow, iddatadb, error.message);
                 showExportResult({
                     success: false,
                     message: error.message,