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services/call-journal.mjs

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+// A successful modem snapshot closes missing calls. Transport errors never do.
+export class CallJournal {
+  constructor(state = {}) {
+    this.pending = state.pending || [];
+    this.completed = state.completed || [];
+    this.nextDate = state.nextDate || 0;
+  }
+  start(call, now = Date.now(), direction) {
+    let item = this.pending.find(c => c.path === call.path);
+    if (!item) {
+      this.nextDate = Math.max(now, this.nextDate + 1);
+      item = {id:String(this.nextDate), path:call.path, date:this.nextDate,
+        number:call.number || '', direction:direction || (['incoming','waiting'].includes(call.state) ? 'incoming':'outgoing'), connectedAt:null};
+      this.pending.push(item);
+    }
+    if (call.number) item.number = call.number;
+    if (['active','held'].includes(call.state) && item.connectedAt === null) item.connectedAt = now;
+    return item;
+  }
+  update(calls, now = Date.now()) {
+    const live = calls.filter(c => c.state !== 'disconnected');
+    for (const call of live) this.start(call, now);
+    const paths = new Set(live.map(c => c.path));
+    for (const item of this.pending.filter(c => !paths.has(c.path))) {
+      this.completed.push({...item, duration:item.connectedAt === null ? 0 : Math.max(0,now-item.connectedAt)});
+    }
+    this.pending = this.pending.filter(c => paths.has(c.path));
+    this.completed = this.completed.slice(-500);
+  }
+  acknowledge(ids) { this.completed = this.completed.filter(c => !ids.includes(c.id)); }
+  snapshot() { return {pending:this.pending, completed:this.completed, nextDate:this.nextDate}; }
+}