feat(app): add middle truncation for filename in comment card

1 files changed, 13 insertions, 0 deletions

diff --git a/packages/util/src/path.ts b/packages/util/src/path.ts
index 1ac106f21..8f4f3304a 100644
--- a/packages/util/src/path.ts
+++ b/packages/util/src/path.ts
@@ -17,3 +17,16 @@ export function getFileExtension(path: string | undefined) {
   const parts = path.split(".")
   return parts[parts.length - 1]
 }
+
+export function getFilenameTruncated(path: string | undefined, maxLength: number = 20) {
+  const filename = getFilename(path)
+  if (filename.length <= maxLength) return filename
+  const lastDot = filename.lastIndexOf(".")
+  const name = lastDot <= 0 ? filename : filename.slice(0, lastDot)
+  const ext = lastDot <= 0 ? "" : filename.slice(lastDot)
+  const available = maxLength - ext.length - 1 // -1 for ellipsis
+  if (available <= 0) return filename.slice(0, maxLength - 1) + "…"
+  const start = Math.ceil(available / 2)
+  const end = Math.floor(available / 2)
+  return name.slice(0, start) + "…" + name.slice(-end) + ext
+}