remove unused replay snapshot path before merge

src/app/api/websites/[websiteId]/replays/[replayId]/route.ts

@@ -3,11 +3,6 @@ import { json, unauthorized } from '@/lib/response';
 import { canViewWebsite } from '@/permissions';
 import { getReplayChunks } from '@/queries/sql';
 
-const RRWEB_TYPE_FULL_SNAPSHOT = 2;
-const RRWEB_TYPE_META = 4;
-const SNAPSHOT_WINDOW_CHUNK_LIMIT = 6;
-const SNAPSHOT_WINDOW_MAX_CHUNKS = 96;
-
 function getEventTimestamp(event: any): number | null {
   const timestamp = Number(event?.timestamp);
 
@@ -24,102 +19,6 @@ function parseOptionalInteger(value: string | null): number | undefined {
   return Number.isInteger(parsed) ? parsed : undefined;
 }
 
-function trimChunksToCheckpoint(
-  chunks: Awaited<ReturnType<typeof getReplayChunks>>,
-  { endChunkIndex, endEventIndex }: { endChunkIndex?: number; endEventIndex?: number },
-) {
-  let lastMetaChunkIndex: number | null = null;
-  let checkpointStartChunkIndex: number | null = null;
-  let hasMeta = false;
-
-  for (const chunk of chunks) {
-    if (endChunkIndex !== undefined && chunk.chunkIndex > endChunkIndex) {
-      break;
-    }
-
-    for (let chunkEventIndex = 0; chunkEventIndex < chunk.events.length; chunkEventIndex++) {
-      if (
-        chunk.chunkIndex === endChunkIndex &&
-        endEventIndex !== undefined &&
-        chunkEventIndex > endEventIndex
-      ) {
-        break;
-      }
-
-      const event = chunk.events[chunkEventIndex];
-
-      if (event?.type === RRWEB_TYPE_META) {
-        lastMetaChunkIndex = chunk.chunkIndex;
-        hasMeta = true;
-      }
-
-      if (event?.type === RRWEB_TYPE_FULL_SNAPSHOT) {
-        checkpointStartChunkIndex = lastMetaChunkIndex ?? chunk.chunkIndex;
-      }
-    }
-  }
-
-  if (checkpointStartChunkIndex === null) {
-    return { chunks, foundCheckpoint: false, hasMeta };
-  }
-
-  return {
-    chunks: chunks.filter(chunk => chunk.chunkIndex >= checkpointStartChunkIndex),
-    foundCheckpoint: true,
-    hasMeta,
-  };
-}
-
-async function getReplaySnapshotChunks(
-  websiteId: string,
-  replayId: string,
-  { endAt, endChunkIndex, endEventIndex }: { endAt?: Date; endChunkIndex: number; endEventIndex?: number },
-) {
-  let limit = SNAPSHOT_WINDOW_CHUNK_LIMIT;
-
-  while (limit <= SNAPSHOT_WINDOW_MAX_CHUNKS) {
-    const descChunks = await getReplayChunks(websiteId, replayId, {
-      endAt,
-      endChunkIndex,
-      limit,
-      order: 'desc',
-    });
-
-    const chunks = [...descChunks].reverse();
-    const { chunks: trimmedChunks, foundCheckpoint, hasMeta } = trimChunksToCheckpoint(chunks, {
-      endChunkIndex,
-      endEventIndex,
-    });
-
-    if (foundCheckpoint || descChunks.length < limit) {
-      if (hasMeta || trimmedChunks.length === 0) {
-        return trimmedChunks;
-      }
-
-      const initialChunks = await getReplayChunks(websiteId, replayId, {
-        limit: 1,
-        order: 'asc',
-      });
-
-      if (!initialChunks.length) {
-        return trimmedChunks;
-      }
-
-      const initialChunk = initialChunks[0];
-
-      if (trimmedChunks.some(chunk => chunk.chunkIndex === initialChunk.chunkIndex)) {
-        return trimmedChunks;
-      }
-
-      return [initialChunk, ...trimmedChunks];
-    }
-
-    limit *= 2;
-  }
-
-  return getReplayChunks(websiteId, replayId, { endAt, endChunkIndex });
-}
-
 function mergeReplayEvents(
   chunks: Awaited<ReturnType<typeof getReplayChunks>>,
   {
@@ -191,14 +90,7 @@ export async function GET(
     return unauthorized();
   }
 
-  const chunks =
-    endChunkIndex !== undefined
-      ? await getReplaySnapshotChunks(websiteId, replayId, {
-          endAt,
-          endChunkIndex,
-          endEventIndex,
-        })
-      : await getReplayChunks(websiteId, replayId, { endAt, endChunkIndex });
+  const chunks = await getReplayChunks(websiteId, replayId, { endAt, endChunkIndex });
   const allEvents = mergeReplayEvents(chunks, { until, endChunkIndex, endEventIndex });
   const sessionId = chunks.length > 0 ? chunks[0].sessionId : null;
   const startedAt = chunks.length > 0 ? chunks[0].startedAt : null;