1 files changed, 22 insertions, 0 deletions
diff --git a/animism-align/frontend/app/utils/annotation.utils.js b/animism-align/frontend/app/utils/annotation.utils.js
index e69de29..9622f80 100644
--- a/animism-align/frontend/app/utils/annotation.utils.js
+++ b/animism-align/frontend/app/utils/annotation.utils.js
@@ -0,0 +1,22 @@
+import { timestampToSeconds } from 'app/utils'
+
+export const curtainTimings = annotation => {
+  const fadeInDuration = timestampToSeconds(annotation.settings.fade_in_duration)
+  const fadeOutDuration = timestampToSeconds(annotation.settings.fade_out_duration)
+  const duration = timestampToSeconds(annotation.settings.duration)
+
+  const start_ts = annotation.start_ts
+  const end_ts = start_ts + duration
+  const fade_in_end_ts = start_ts + fadeInDuration
+  const fade_out_start_ts = end_ts - fadeOutDuration
+
+  return {
+    fadeInDuration, fadeOutDuration, duration,
+    start_ts, end_ts, fade_in_end_ts, fade_out_start_ts,
+  }
+}
+
+export const thumbnailURL = data => {
+  if (data.type === 'video') return data.settings.video.thumbnail_url
+  if (data.type === 'image') return data.settings.thumbnail.url
+}