feat: add single file upload

utils/format.ts

@@ -0,0 +1,58 @@
+/**
+ * Formats a number with comma separators.
+ * @example formatNumber(1234567) will return '1,234,567'
+ * @example formatNumber(1234567.89) will return '1,234,567.89'
+ */
+export const formatNumber = (num: number | string) => {
+  if (!num)
+    return num
+  const parts = num.toString().split('.')
+  parts[0] = parts[0].replace(/\B(?=(\d{3})+(?!\d))/g, ',')
+  return parts.join('.')
+}
+
+/**
+ * Format file size into standard string format.
+ * @param fileSize file size (Byte)
+ * @example formatFileSize(1024) will return '1.00KB'
+ * @example formatFileSize(1024 * 1024) will return '1.00MB'
+ */
+export const formatFileSize = (fileSize: number) => {
+  if (!fileSize)
+    return fileSize
+  const units = ['', 'K', 'M', 'G', 'T', 'P']
+  let index = 0
+  while (fileSize >= 1024 && index < units.length) {
+    fileSize = fileSize / 1024
+    index++
+  }
+  return `${fileSize.toFixed(2)}${units[index]}B`
+}
+
+/**
+ * Format time into standard string format.
+ * @example formatTime(60) will return '1.00 min'
+ * @example formatTime(60 * 60) will return '1.00 h'
+ */
+export const formatTime = (seconds: number) => {
+  if (!seconds)
+    return seconds
+  const units = ['sec', 'min', 'h']
+  let index = 0
+  while (seconds >= 60 && index < units.length) {
+    seconds = seconds / 60
+    index++
+  }
+  return `${seconds.toFixed(2)} ${units[index]}`
+}
+
+export const downloadFile = ({ data, fileName }: { data: Blob; fileName: string }) => {
+  const url = window.URL.createObjectURL(data)
+  const a = document.createElement('a')
+  a.href = url
+  a.download = fileName
+  document.body.appendChild(a)
+  a.click()
+  a.remove()
+  window.URL.revokeObjectURL(url)
+}