Fix Upload File Task #2264

src/interfaces/extension.ts

@@ -1,4 +1,46 @@
 class Extension {
+  public static checkDateTime(value: any, format: "dd/MM/yyyy" | "yyyy-MM-dd"): Date | null {
+    if (value == null) return null;
+
+    let dateStr = String(value).trim();
+    if (!dateStr) return null;
+
+    const parts = dateStr.replace(/-/g, "/").split("/");
+    if (parts.length !== 3) return null;
+
+    let year = 0, month = 0, day = 0;
+
+    switch (format) {
+      case "dd/MM/yyyy":
+        year = Number(parts[2]);
+        month = Number(parts[1]);
+        day = Number(parts[0]);
+        break;
+
+      case "yyyy-MM-dd":
+        year = Number(parts[0]);
+        month = Number(parts[1]);
+        day = Number(parts[2]);
+        break;
+    }
+
+    if (isNaN(year) || isNaN(month) || isNaN(day)) return null;
+
+    // พ.ศ. → ค.ศ.
+    if (year > 2500) year -= 543;
+
+    // clamp month
+    if (month < 1 || month > 12) month = 1;
+
+    // clamp day
+    const maxDay = new Date(year, month, 0).getDate();
+    if (day < 1) day = 1;
+    else if (day > maxDay) day = maxDay;
+
+    const date = new Date(year, month - 1, day);
+    return isNaN(date.getTime()) ? null : date;
+  }
+
   public static ToThaiMonth(value: number) {
     switch (value) {
       case 1: