precompute call waveforms and stop list-time audio loading

frontend/app/components/workspace/CrmWorkspaceApp.vue

@@ -103,6 +103,7 @@ type CommItem = {
   text: string;
   audioUrl?: string;
   duration?: string;
+  waveform?: number[];
   transcript?: string[];
   deliveryStatus?: "PENDING" | "SENT" | "DELIVERED" | "READ" | "FAILED" | string | null;
 };
@@ -1262,6 +1263,19 @@ function parseDurationToSeconds(raw?: string) {
 }
 
 function buildCallWavePeaks(item: CommItem, size = 320) {
+  const stored = Array.isArray(item.waveform)
+    ? item.waveform.map((value) => Number(value)).filter((value) => Number.isFinite(value) && value > 0)
+    : [];
+  if (stored.length) {
+    const sampled = new Float32Array(size);
+    for (let i = 0; i < size; i += 1) {
+      const t = size <= 1 ? 0 : i / (size - 1);
+      const idx = Math.min(stored.length - 1, Math.round(t * (stored.length - 1)));
+      sampled[i] = Math.max(0.05, Math.min(1, stored[idx] ?? 0.05));
+    }
+    return sampled;
+  }
+
   const source = `${item.text} ${(item.transcript ?? []).join(" ")}`.trim() || item.contact;
   let seed = 0;
   for (let i = 0; i < source.length; i += 1) {
@@ -1295,7 +1309,6 @@ async function ensureCommCallWave(itemId: string) {
 
   const callItem = visibleThreadItems.value.find((item) => item.id === itemId && item.kind === "call");
   if (!callItem) return;
-  const audioUrl = getCallAudioUrl(callItem);
 
   const { WaveSurfer } = await loadWaveSurferModules();
   const durationSeconds =
@@ -1314,12 +1327,7 @@ async function ensureCommCallWave(itemId: string) {
     barWidth: 0,
   });
 
-  try {
-    if (!audioUrl) throw new Error("missing_audio_url");
-    await ws.load(audioUrl);
-  } catch {
   await ws.load("", [peaks], durationSeconds);
-  }
   commCallWaveSurfers.set(itemId, ws);
 }
 

frontend/graphql/operations/communications.graphql

@@ -13,6 +13,7 @@ query CommunicationsQuery {
     text
     audioUrl
     duration
+    waveform
     transcript
     deliveryStatus
   }

frontend/graphql/operations/get-client-timeline.graphql

@@ -19,6 +19,7 @@ query GetClientTimelineQuery($contactId: ID!, $limit: Int) {
       text
       audioUrl
       duration
+      waveform
       transcript
       deliveryStatus
     }

frontend/prisma/migrations/4_add_contact_message_waveform_json/migration.sql

@@ -0,0 +1,3 @@
+-- AlterTable
+ALTER TABLE "ContactMessage" ADD COLUMN     "waveformJson" JSONB;
+

frontend/prisma/schema.prisma

@@ -166,6 +166,7 @@ model ContactMessage {
   content        String
   audioUrl       String?
   durationSec    Int?
+  waveformJson   Json?
   transcriptJson Json?
   occurredAt     DateTime           @default(now())
   createdAt      DateTime           @default(now())

frontend/server/graphql/schema.ts

@@ -633,6 +633,9 @@ async function getCommunications(auth: AuthContext | null) {
     text: m.content,
     audioUrl: resolveContactMessageAudioUrl(m),
     duration: m.durationSec ? new Date(m.durationSec * 1000).toISOString().slice(14, 19) : "",
+    waveform: Array.isArray(m.waveformJson)
+      ? m.waveformJson.map((value) => Number(value)).filter((value) => Number.isFinite(value))
+      : [],
     transcript: Array.isArray(m.transcriptJson) ? ((m.transcriptJson as any) as string[]) : [],
     deliveryStatus: resolveDeliveryStatus(m),
   }));
@@ -953,6 +956,9 @@ async function getClientTimeline(auth: AuthContext | null, contactIdInput: strin
       text: m.content,
       audioUrl: resolveContactMessageAudioUrl(m),
       duration: m.durationSec ? new Date(m.durationSec * 1000).toISOString().slice(14, 19) : "",
+      waveform: Array.isArray(m.waveformJson)
+        ? m.waveformJson.map((value) => Number(value)).filter((value) => Number.isFinite(value))
+        : [],
       transcript: Array.isArray(m.transcriptJson) ? ((m.transcriptJson as any) as string[]) : [],
       deliveryStatus: resolveDeliveryStatus(m),
     },
@@ -2014,6 +2020,7 @@ export const crmGraphqlSchema = buildSchema(`
     text: String!
     audioUrl: String!
     duration: String!
+    waveform: [Float!]!
     transcript: [String!]!
     deliveryStatus: String
   }

omni_chat/prisma/schema.prisma

@@ -158,6 +158,7 @@ model ContactMessage {
   content        String
   audioUrl       String?
   durationSec    Int?
+  waveformJson   Json?
   transcriptJson Json?
   occurredAt     DateTime           @default(now())
   createdAt      DateTime           @default(now())

omni_chat/src/worker.ts

@@ -29,6 +29,7 @@ type OmniInboundEnvelopeV1 = {
 export const RECEIVER_FLOW_QUEUE_NAME = (process.env.RECEIVER_FLOW_QUEUE_NAME || "receiver.flow").trim();
 const TELEGRAM_PLACEHOLDER_PREFIX = "Telegram ";
 const TELEGRAM_AUDIO_FILE_MARKER = "tg-file:";
+const TELEGRAM_WAVE_BINS = 96;
 
 function redisConnectionFromEnv(): ConnectionOptions {
   const raw = (process.env.REDIS_URL || "redis://localhost:6379").trim();
@@ -87,6 +88,101 @@ function fallbackTextFromMedia(media: TelegramInboundMedia) {
   return "[audio]";
 }
 
+function buildFallbackWaveform(seedText: string, bins = TELEGRAM_WAVE_BINS) {
+  let seed = 0;
+  for (let i = 0; i < seedText.length; i += 1) {
+    seed = (seed * 33 + seedText.charCodeAt(i)) >>> 0;
+  }
+
+  const random = () => {
+    seed = (seed * 1664525 + 1013904223) >>> 0;
+    return seed / 0xffffffff;
+  };
+
+  const out: number[] = [];
+  let smooth = 0;
+  for (let i = 0; i < bins; i += 1) {
+    const t = i / Math.max(1, bins - 1);
+    const burst = Math.max(0, Math.sin(t * Math.PI * (2 + (seedText.length % 5))));
+    const noise = (random() * 2 - 1) * 0.6;
+    smooth = smooth * 0.72 + noise * 0.28;
+    const value = Math.max(0.06, Math.min(1, 0.12 + Math.abs(smooth) * 0.42 + burst * 0.4));
+    out.push(Number(value.toFixed(4)));
+  }
+  return out;
+}
+
+function buildWaveformFromBytes(bytes: Uint8Array, bins = TELEGRAM_WAVE_BINS) {
+  if (!bytes.length) return [];
+  const bucketSize = Math.max(1, Math.ceil(bytes.length / bins));
+  const raw = new Array<number>(bins).fill(0);
+
+  for (let i = 0; i < bins; i += 1) {
+    const start = i * bucketSize;
+    const end = Math.min(bytes.length, start + bucketSize);
+    if (start >= end) continue;
+
+    let energy = 0;
+    for (let j = start; j < end; j += 1) {
+      energy += Math.abs(bytes[j] - 128) / 128;
+    }
+    raw[i] = energy / (end - start);
+  }
+
+  const smooth: number[] = [];
+  let prev = 0;
+  for (const value of raw) {
+    prev = prev * 0.78 + value * 0.22;
+    smooth.push(prev);
+  }
+
+  const maxValue = Math.max(...smooth, 0);
+  if (maxValue <= 0) return [];
+
+  return smooth.map((value) => {
+    const normalized = value / maxValue;
+    const mapped = Math.max(0.06, Math.min(1, normalized * 0.9 + 0.06));
+    return Number(mapped.toFixed(4));
+  });
+}
+
+async function fetchTelegramFileBytes(fileId: string) {
+  const token = String(process.env.TELEGRAM_BOT_TOKEN ?? "").trim();
+  if (!token) return null;
+
+  const base = String(process.env.TELEGRAM_API_BASE ?? "https://api.telegram.org").replace(/\/+$/, "");
+
+  const metaRes = await fetch(`${base}/bot${token}/getFile`, {
+    method: "POST",
+    headers: { "content-type": "application/json" },
+    body: JSON.stringify({ file_id: fileId }),
+  });
+  const metaJson = (await metaRes.json().catch(() => null)) as
+    | { ok?: boolean; result?: { file_path?: string } }
+    | null;
+  const filePath = String(metaJson?.result?.file_path ?? "").trim();
+  if (!metaRes.ok || !metaJson?.ok || !filePath) return null;
+
+  const fileRes = await fetch(`${base}/file/bot${token}/${filePath}`);
+  if (!fileRes.ok) return null;
+  return new Uint8Array(await fileRes.arrayBuffer());
+}
+
+async function resolveInboundWaveform(media: TelegramInboundMedia, text: string) {
+  const fallback = buildFallbackWaveform(`${media.fileId ?? "none"}:${media.durationSec ?? "0"}:${text}`);
+  const fileId = media.fileId;
+  if (!fileId) return fallback;
+
+  try {
+    const bytes = await fetchTelegramFileBytes(fileId);
+    if (!bytes?.length) return fallback;
+    const fromFile = buildWaveformFromBytes(bytes);
+    return fromFile.length ? fromFile : fallback;
+  } catch {
+    return fallback;
+  }
+}
+
 function parseOccurredAt(input: string | null | undefined) {
   const d = new Date(String(input ?? ""));
   if (Number.isNaN(d.getTime())) return new Date();
@@ -380,6 +476,7 @@ async function ingestInbound(env: OmniInboundEnvelopeV1) {
   const isAudioLike = Boolean(media.fileId) && (media.kind === "voice" || media.kind === "audio" || media.kind === "video_note");
   const contactMessageKind: "MESSAGE" | "CALL" = isAudioLike ? "CALL" : "MESSAGE";
   const contactMessageAudioUrl = isAudioLike ? `${TELEGRAM_AUDIO_FILE_MARKER}${media.fileId}` : null;
+  const waveformPeaks = isAudioLike ? await resolveInboundWaveform(media, text) : null;
   const occurredAt = parseOccurredAt(env.occurredAt);
   const direction = safeDirection(env.direction);
   const contactProfile = buildContactProfile(n, externalContactId);
@@ -482,6 +579,7 @@ async function ingestInbound(env: OmniInboundEnvelopeV1) {
       content: text,
       audioUrl: contactMessageAudioUrl,
       durationSec: media.durationSec,
+      ...(waveformPeaks ? { waveformJson: waveformPeaks as Prisma.InputJsonValue } : {}),
       occurredAt,
     },
   });

omni_outbound/prisma/schema.prisma

@@ -158,6 +158,7 @@ model ContactMessage {
   content        String
   audioUrl       String?
   durationSec    Int?
+  waveformJson   Json?
   transcriptJson Json?
   occurredAt     DateTime           @default(now())
   createdAt      DateTime           @default(now())