Replace the video match algorithm

Author: benjie

src/app/conf/2025/schedule/[id]/session-video.tsx

@@ -4,6 +4,40 @@ import { findBestMatch } from "string-similarity"
 import { ScheduleSession } from "@/app/conf/2023/types"
 
 import { videos } from "../../_videos"
+import { speakers, schedule } from "../../_data"
+import { getEventTitle } from "../../utils"
+
+const sessionIdByTitle = Object.create(null)
+for (const session of schedule) {
+  const speakerNames = (session.speakers || []).map(speaker => {
+    const s = speakers.find(s => s.username === speaker.username)
+    if (!s) {
+      throw new Error(
+        `Speaker "${speaker.username}" not found for "${session.name}"`,
+      )
+    }
+    return s.name
+  })
+
+  const eventTitle = getEventTitle(session, speakerNames)
+  const title = `${eventTitle} ${speakerNames.join(" ")}`
+
+  sessionIdByTitle[title] = session.id
+}
+
+const videoBySessionId = Object.create(null)
+for (const video of videos) {
+  const result = findBestMatch(video.title, Object.keys(sessionIdByTitle))
+  if (result.ratings[result.bestMatchIndex].rating < 0.17) {
+    console.warn(
+      `Could not find suitable schedule item for video "${video.title}"`,
+    )
+    continue
+  }
+  const recordingTitle = result.bestMatch.target
+  const sessionId = sessionIdByTitle[recordingTitle]
+  videoBySessionId[sessionId] = video
+}
 
 export interface SessionVideoProps {
   video: {
@@ -25,27 +59,6 @@ export function SessionVideo({ video, className }: SessionVideoProps) {
   )
 }
 
-export function findVideo(event: ScheduleSession, eventTitle: string) {
-  if (videos.length === 0) {
-    return null
-  }
-
-  const result = findBestMatch(
-    `${eventTitle} ${event.speakers!.map(e => e.name).join(" ")}`,
-    videos.map(e => e.title),
-  )
-
-  if (result.ratings[result.bestMatchIndex].rating < 0.17) {
-    return null
-  }
-
-  const recordingTitle = result.bestMatch
-
-  const video = videos.find(e => e.title === recordingTitle.target)
-
-  if (!video) {
-    throw new Error(`Video "${recordingTitle.target}" not found`)
-  }
-
-  return video
+export function findVideo(event: ScheduleSession, _eventTitle: string) {
+  return videoBySessionId[event.id]
 }