Improve error handling

Author: hasparus

src/app/conf/2024/speakers/[id]/page.tsx

@@ -18,7 +18,11 @@ type SpeakerProps = { params: { id: string } }
 
 export function generateMetadata({ params }: SpeakerProps): Metadata {
   const decodedId = decodeURIComponent(params.id)
-  const speaker = speakers.find(s => s.username === decodedId)!
+  const speaker = speakers.find(s => s.username === decodedId)
+
+  if (!speaker) {
+    throw new Error(`Speaker "${decodedId}" not found for details page`)
+  }
 
   const keywords = [speaker.name, speaker.company, speaker.position].filter(
     Boolean,

src/app/conf/2025/schedule/[id]/page.tsx

@@ -55,10 +55,15 @@ export default function SessionPage({ params }: SessionProps) {
     notFound()
   }
 
-  // @ts-expect-error -- fixme
-  session.speakers = (session.speakers || []).map(speaker =>
-    speakers.find(s => s.username === speaker.username),
-  )
+  session.speakers = (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
+  })
 
   const eventTitle = getEventTitle(
     session,

src/app/conf/2025/speakers/[id]/page.tsx

@@ -24,7 +24,11 @@ type SpeakerProps = { params: { id: string } }
 
 export function generateMetadata({ params }: SpeakerProps): Metadata {
   const decodedId = decodeURIComponent(params.id)
-  const speaker = speakers.find(s => s.username === decodedId)!
+  const speaker = speakers.find(s => s.username === decodedId)
+
+  if (!speaker) {
+    throw new Error(`Speaker "${decodedId}" not found for details page`)
+  }
 
   const keywords = [speaker.name, speaker.company, speaker.position].filter(
     Boolean,
@@ -46,8 +50,9 @@ export function generateStaticParams() {
 
 export default function SpeakerPage({ params }: SpeakerProps) {
   const speaker = speakers.find(s => s.username === params.id)
+
   if (!speaker) {
-    notFound()
+    throw new Error(`Speaker "${params.id}" not found for details page`)
   }
 
   return (