feaature/catalogo-empresa-mejoras

frontend/src/lib/utils/date.ts

@@ -0,0 +1,57 @@
+/**
+ * Utility for date formatting and conversion.
+ * Canonical API format: DD/MM/YYYY
+ * Native input[type="date"] format: YYYY-MM-DD
+ */
+
+/**
+ * Converts DD/MM/YYYY or YYYYMMDD to YYYY-MM-DD for native date input.
+ */
+export function toInputDate(dateStr: string | number | null | undefined): string {
+	if (!dateStr) return '';
+
+	const str = String(dateStr);
+
+	if (/^\d{8}$/.test(str)) {
+		const y = str.substring(0, 4);
+		const m = str.substring(4, 6);
+		const d = str.substring(6, 8);
+		return `${y}-${m}-${d}`;
+	}
+
+	if (/^\d{2}\/\d{2}\/\d{4}$/.test(str)) {
+		const [d, m, y] = str.split('/');
+		return `${y}-${m}-${d}`;
+	}
+
+	if (/^\d{4}-\d{2}-\d{2}$/.test(str)) {
+		return str;
+	}
+
+	return '';
+}
+
+/**
+ * Converts YYYY-MM-DD or YYYYMMDD to DD/MM/YYYY for API.
+ */
+export function toDbDate(dateStr: string | null | undefined): string | null {
+	if (!dateStr) return null;
+
+	if (/^\d{2}\/\d{2}\/\d{4}$/.test(dateStr)) {
+		return dateStr;
+	}
+
+	if (/^\d{4}-\d{2}-\d{2}$/.test(dateStr)) {
+		const [y, m, d] = dateStr.split('-');
+		return `${d}/${m}/${y}`;
+	}
+
+	if (/^\d{8}$/.test(dateStr)) {
+		const y = dateStr.substring(0, 4);
+		const m = dateStr.substring(4, 6);
+		const d = dateStr.substring(6, 8);
+		return `${d}/${m}/${y}`;
+	}
+
+	return null;
+}