1 files changed, 69 insertions, 0 deletions
diff --git a/animism-align/frontend/app/views/paragraph/transcript.actions.js b/animism-align/frontend/app/views/paragraph/transcript.actions.js
new file mode 100644
index 0000000..3d2b045
--- /dev/null
+++ b/animism-align/frontend/app/views/paragraph/transcript.actions.js
@@ -0,0 +1,69 @@
+import * as types from 'app/types'
+import { store, history, dispatch } from 'app/store'
+import { MEDIA_TYPES } from 'app/constants'
+
+export const buildParagraphs = () => dispatch => {
+  const state = store.getState()
+  const { order: annotationOrder, lookup: annotationLookup } = state.annotation.index
+  const { lookup: paragraphLookup } = state.paragraph.index
+  let currentParagraph = {}
+  let sectionCount = 0
+  const paragraphs = []
+  // loop over the annotations in time order
+  annotationOrder.forEach((annotation_id, i) => {
+    const annotation = annotationLookup[annotation_id]
+    const paragraph = paragraphLookup[annotation.paragraph_id]
+    // if this annotation is media, insert it after the current paragraph
+    if (MEDIA_TYPES.has(annotation.type)) {
+      paragraphs.push({
+        id: ('index_' + i),
+        type: annotation.type,
+        start_ts: annotation.start_ts,
+        end_ts: 0,
+        annotations: [annotation],
+      })
+      return
+    }
+    // if this annotation is from a different paragraph, make a new paragraph
+    if (annotation.type === 'header' || annotation.paragraph_id !== currentParagraph.id) {
+      const paragraph_type = getParagraphType(annotation, paragraph)
+      currentParagraph = {
+        id: annotation.paragraph_id || ('index_' + i),
+        type: paragraph_type,
+        start_ts: annotation.start_ts,
+        end_ts: 0,
+        annotations: [],
+      }
+      if (annotation.type === 'header') {
+        currentParagraph.sectionIndex = sectionCount++
+        currentParagraph.id = 'section_' + currentParagraph.sectionIndex
+      }
+      paragraphs.push(currentParagraph)
+    }
+    // if this annotation is a paragraph_end, set the end timestamp
+    if (annotation.type === 'paragraph_end') {
+      currentParagraph.end_ts = annotation.start_ts
+    }
+    // otherwise, just append this annotation to the paragraph
+    else {
+      currentParagraph.annotations.push(annotation)
+    }
+  })
+  for (let i = 0; i < (paragraphs.length - 1); i++) {
+    if (!paragraphs[i].end_ts) {
+      paragraphs[i].end_ts = paragraphs[i+1].start_ts - 0.1
+    }
+  }
+  dispatch({ type: types.paragraph.update_transcript, paragraphs })
+}
+
+const getParagraphType = (annotation, paragraph) => {
+  if (annotation.type === 'header') {
+    return annotation.type
+  }
+  if (!paragraph) {
+    return annotation.type
+  }
+  return paragraph.type
+}
+