Dev cleaning (#106)

app/lib/utils.ts

@@ -0,0 +1,96 @@
+import type { ClassValue } from 'clsx'
+import { clsx } from 'clsx'
+import { twMerge } from 'tailwind-merge'
+
+export interface SelectOptionType<_T = string> {
+  value: string
+  label: string
+  code?: string
+}
+
+export function cn(...inputs: ClassValue[]) {
+  return twMerge(clsx(inputs))
+}
+
+export function mapToComboboxOptList(items: Record<string, string>): SelectOptionType<string>[] {
+  if (!items) {
+    return []
+  }
+  const result: SelectOptionType<string>[] = []
+  Object.keys(items).forEach((item) => {
+    result.push({
+      label: items[item] as string,
+      value: item,
+      code: item,
+    })
+  })
+  return result
+}
+
+/**
+ * Menghitung umur berdasarkan tanggal lahir
+ * @param birthDate - Tanggal lahir dalam format Date atau string
+ * @returns String umur dalam format "X tahun Y bulan" atau "X bulan" untuk bayi
+ */
+export function calculateAge(birthDate: Date | string | null | undefined): string {
+  if (!birthDate) {
+    return '-'
+  }
+
+  let birth: Date
+
+  // Konversi ke Date object
+  if (typeof birthDate === 'string') {
+    birth = new Date(birthDate)
+  } else {
+    birth = birthDate
+  }
+
+  // Validasi tanggal
+  if (isNaN(birth.getTime())) {
+    return '-'
+  }
+
+  const today = new Date()
+  const birthYear = birth.getFullYear()
+  const birthMonth = birth.getMonth()
+  const birthDay = birth.getDate()
+
+  const currentYear = today.getFullYear()
+  const currentMonth = today.getMonth()
+  const currentDay = today.getDate()
+
+  // Hitung tahun
+  let years = currentYear - birthYear
+  let months = currentMonth - birthMonth
+
+  // Adjust jika bulan atau hari belum lewat
+  if (months < 0 || (months === 0 && currentDay < birthDay)) {
+    years--
+    months += 12
+  }
+
+  if (currentDay < birthDay) {
+    months--
+  }
+
+  // Pastikan months tidak negatif
+  if (months < 0) {
+    months += 12
+  }
+
+  // Format output
+  if (years === 0) {
+    if (months === 0) {
+      // Hitung hari untuk bayi baru lahir
+      const diffTime = today.getTime() - birth.getTime()
+      const days = Math.floor(diffTime / (1000 * 60 * 60 * 24))
+      return days <= 30 ? `${days} hari` : '1 bulan'
+    }
+    return `${months} bulan`
+  } else if (months === 0) {
+    return `${years} tahun`
+  } else {
+    return `${years} tahun ${months} bulan`
+  }
+}