2 files changed, 32 insertions, 0 deletions

diff --git a/client/src/root-helpers/bytes.ts b/client/src/root-helpers/bytes.ts
new file mode 100644
index 000000000..ec8b55faa
--- /dev/null
+++ b/client/src/root-helpers/bytes.ts
@@ -0,0 +1,31 @@
+const dictionary: Array<{ max: number; type: string }> = [
+  { max: 1024, type: 'B' },
+  { max: 1048576, type: 'KB' },
+  { max: 1073741824, type: 'MB' },
+  { max: 1.0995116e12, type: 'GB' }
+]
+
+function getBytes (value: number, precision?: number | undefined): string | number {
+  const format = dictionary.find(d => value < d.max) || dictionary[dictionary.length - 1]
+  const calc = value / (format.max / 1024)
+
+  const num = precision === undefined
+    ? calc
+    : applyPrecision(calc, precision)
+
+  return `${num} ${format.type}`
+}
+
+function applyPrecision (num: number, precision: number) {
+  if (precision <= 0) {
+    return Math.round(num)
+  }
+
+  const tho = 10 ** precision
+
+  return Math.round(num * tho) / tho
+}
+
+export {
+  getBytes
+}
diff --git a/client/src/root-helpers/index.ts b/client/src/root-helpers/index.ts
index 59468b31c..036a7677d 100644
--- a/client/src/root-helpers/index.ts
+++ b/client/src/root-helpers/index.ts
@@ -1,3 +1,4 @@
 export * from './users'
+export * from './bytes'
 export * from './peertube-web-storage'
 export * from './utils'