Added initial usage of parserDate

server/utils/parsers/parseDate.js

@@ -0,0 +1,54 @@
+/**
+ * Parse a date string with multiple fallback formats
+ *
+ * @example
+ * parse('2024-01-15') => Date object for Jan 15, 2024
+ * parse('20240325')   => Date object for Mar 25, 2024
+ * parse('250312')     => Date object for Mar 12, 2025 (year <= 50 as 20xx)
+ * parse('750312')     => Date object for Mar 12, 1975 (year > 50 as 19xx)
+ *
+ * @param {string} dateString The date string to parse
+ * @returns {Date|null} Date object or null if unparseable
+ */
+function parseDate(dateString) {
+  if (!dateString || typeof dateString !== 'string') return null
+
+  const date = new Date(dateString)
+  if (!isNaN(date.getTime())) {
+    const year = date.getFullYear()
+    if (year >= 0 && year <= 9999) {
+      return date
+    }
+  }
+
+  const yyyymmddMatch = dateString.match(/^(\d{4})(\d{2})(\d{2})$/)
+  if (yyyymmddMatch) {
+    const [, year, month, day] = yyyymmddMatch
+    const monthNum = parseInt(month)
+    const dayNum = parseInt(day)
+    if (monthNum >= 1 && monthNum <= 12 && dayNum >= 1 && dayNum <= 31) {
+      const parsedDate = new Date(parseInt(year), monthNum - 1, dayNum)
+      if (!isNaN(parsedDate.getTime())) {
+        return parsedDate
+      }
+    }
+  }
+
+  const yymmddMatch = dateString.match(/^(\d{2})(\d{2})(\d{2})$/)
+  if (yymmddMatch) {
+    const [, year, month, day] = yymmddMatch
+    const monthNum = parseInt(month)
+    const dayNum = parseInt(day)
+    if (monthNum >= 1 && monthNum <= 12 && dayNum >= 1 && dayNum <= 31) {
+      const fullYear = parseInt(year) > 50 ? 1900 + parseInt(year) : 2000 + parseInt(year)
+      const parsedDate = new Date(fullYear, monthNum - 1, dayNum)
+      if (!isNaN(parsedDate.getTime())) {
+        return parsedDate
+      }
+    }
+  }
+
+  return null
+}
+
+module.exports.parse = parseDate