Add listener email system with IMAP polling, TTS playback, and show awareness

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

backend/main.py

@@ -2717,15 +2717,22 @@ class Session:
     def get_show_history(self) -> str:
         """Get formatted show history for AI caller prompts.
         Randomly picks one previous caller to have a strong reaction to."""
-        if not self.call_history:
+        if not self.call_history and not any(e.read_on_air for e in _listener_emails):
             return ""
         lines = ["EARLIER IN THE SHOW:"]
         for record in self.call_history:
             caller_type_label = "(real caller)" if record.caller_type == "real" else "(AI)"
             lines.append(f"- {record.caller_name} {caller_type_label}: {record.summary}")
 
+        # Include emails that were read on the show
+        read_emails = [e for e in _listener_emails if e.read_on_air]
+        for em in read_emails:
+            sender_name = em.sender.split("<")[0].strip().strip('"') if "<" in em.sender else "a listener"
+            preview = em.body[:150] if len(em.body) > 150 else em.body
+            lines.append(f"- A listener email from {sender_name} was read on air: \"{em.subject}\" — {preview}")
+
         # 20% chance to have a strong reaction to a previous caller
-        if random.random() < 0.20:
+        if self.call_history and random.random() < 0.20:
             target = random.choice(self.call_history)
             reaction = random.choice(SHOW_HISTORY_REACTIONS)
             lines.append(f"\nYOU HEARD {target.caller_name.upper()} EARLIER and you {reaction}. Mention it if it comes up.")
@@ -3092,7 +3099,9 @@ async def _sync_signalwire_voicemails():
 async def startup():
     """Pre-generate caller backgrounds on server start"""
     _load_voicemails()
+    _load_emails()
     asyncio.create_task(_sync_signalwire_voicemails())
+    asyncio.create_task(_poll_imap_emails())
     restored = _load_checkpoint()
     if not restored:
         asyncio.create_task(_pregenerate_backgrounds())
@@ -3418,6 +3427,196 @@ async def delete_voicemail(vm_id: str):
     return {"status": "deleted"}
 
 
+# --- Listener Emails ---
+EMAILS_META = Path(__file__).parent.parent / "data" / "emails.json"
+
+
+@dataclass
+class ListenerEmail:
+    id: str
+    sender: str
+    subject: str
+    body: str
+    timestamp: float
+    read_on_air: bool = False
+
+
+_listener_emails: list[ListenerEmail] = []
+
+
+def _load_emails():
+    global _listener_emails
+    if EMAILS_META.exists():
+        try:
+            with open(EMAILS_META) as f:
+                data = json.load(f)
+            _listener_emails = [
+                ListenerEmail(
+                    id=e["id"], sender=e["sender"], subject=e["subject"],
+                    body=e["body"], timestamp=e["timestamp"],
+                    read_on_air=e.get("read_on_air", False),
+                )
+                for e in data.get("emails", [])
+            ]
+            print(f"[Email] Loaded {len(_listener_emails)} emails")
+        except Exception as e:
+            print(f"[Email] Failed to load: {e}")
+            _listener_emails = []
+
+
+def _save_emails():
+    try:
+        EMAILS_META.parent.mkdir(parents=True, exist_ok=True)
+        data = {
+            "emails": [
+                {
+                    "id": e.id, "sender": e.sender, "subject": e.subject,
+                    "body": e.body, "timestamp": e.timestamp,
+                    "read_on_air": e.read_on_air,
+                }
+                for e in _listener_emails
+            ],
+        }
+        with open(EMAILS_META, "w") as f:
+            json.dump(data, f, indent=2)
+    except Exception as exc:
+        print(f"[Email] Failed to save: {exc}")
+
+
+async def _poll_imap_emails():
+    """Background task: poll IMAP every 30s for new listener emails"""
+    import imaplib
+    import email as email_lib
+    from email.header import decode_header
+
+    host = settings.submissions_imap_host
+    user = settings.submissions_imap_user
+    passwd = settings.submissions_imap_pass
+    if not host or not user or not passwd:
+        print("[Email] IMAP not configured, skipping email polling")
+        return
+
+    while True:
+        try:
+            mail = imaplib.IMAP4_SSL(host, 993)
+            mail.login(user, passwd)
+            mail.select("INBOX")
+
+            _, msg_nums = mail.search(None, "UNSEEN")
+            if msg_nums[0]:
+                for num in msg_nums[0].split():
+                    _, msg_data = mail.fetch(num, "(RFC822)")
+                    raw = msg_data[0][1]
+                    msg = email_lib.message_from_bytes(raw)
+
+                    # Decode sender
+                    from_raw = msg.get("From", "Unknown")
+
+                    # Decode subject
+                    subj_raw = msg.get("Subject", "(no subject)")
+                    decoded_parts = decode_header(subj_raw)
+                    subject = ""
+                    for part, charset in decoded_parts:
+                        if isinstance(part, bytes):
+                            subject += part.decode(charset or "utf-8", errors="replace")
+                        else:
+                            subject += part
+
+                    # Extract plain text body
+                    body = ""
+                    if msg.is_multipart():
+                        for part in msg.walk():
+                            if part.get_content_type() == "text/plain":
+                                payload = part.get_payload(decode=True)
+                                if payload:
+                                    charset = part.get_content_charset() or "utf-8"
+                                    body = payload.decode(charset, errors="replace")
+                                break
+                    else:
+                        payload = msg.get_payload(decode=True)
+                        if payload:
+                            charset = msg.get_content_charset() or "utf-8"
+                            body = payload.decode(charset, errors="replace")
+
+                    body = body.strip()
+                    if not body:
+                        continue
+
+                    # Parse timestamp from email Date header
+                    from email.utils import parsedate_to_datetime
+                    try:
+                        ts = parsedate_to_datetime(msg.get("Date", "")).timestamp()
+                    except Exception:
+                        ts = time.time()
+
+                    em = ListenerEmail(
+                        id=str(uuid.uuid4())[:8],
+                        sender=from_raw,
+                        subject=subject,
+                        body=body,
+                        timestamp=ts,
+                    )
+                    _listener_emails.append(em)
+                    print(f"[Email] New email from {from_raw}: {subject[:50]}")
+
+                    # Mark as SEEN (already done by fetch with UNSEEN filter)
+                    mail.store(num, "+FLAGS", "\\Seen")
+
+                _save_emails()
+
+            mail.logout()
+        except Exception as exc:
+            print(f"[Email] IMAP poll error: {exc}")
+
+        await asyncio.sleep(30)
+
+
+@app.get("/api/emails")
+async def list_emails():
+    return [
+        {
+            "id": e.id, "sender": e.sender, "subject": e.subject,
+            "body": e.body, "timestamp": e.timestamp,
+            "read_on_air": e.read_on_air,
+        }
+        for e in sorted(_listener_emails, key=lambda e: e.timestamp, reverse=True)
+    ]
+
+
+@app.post("/api/email/{email_id}/play-on-air")
+async def play_email_on_air(email_id: str):
+    em = next((e for e in _listener_emails if e.id == email_id), None)
+    if not em:
+        raise HTTPException(status_code=404, detail="Email not found")
+
+    # Extract display name, fall back to just "a listener"
+    sender_name = em.sender.split("<")[0].strip().strip('"') if "<" in em.sender else "a listener"
+    intro = f"This email is from {sender_name}. Subject: {em.subject}."
+    full_text = f"{intro}\n\n{em.body}"
+
+    async def _generate_and_play():
+        try:
+            audio_bytes = await generate_speech(full_text, "Alex", phone_quality="none", apply_filter=False)
+            audio_service.play_caller_audio(audio_bytes, 24000)
+        except Exception as exc:
+            print(f"[Email] TTS playback error: {exc}")
+
+    asyncio.create_task(_generate_and_play())
+    em.read_on_air = True
+    _save_emails()
+    return {"status": "playing"}
+
+
+@app.delete("/api/email/{email_id}")
+async def delete_email(email_id: str):
+    em = next((e for e in _listener_emails if e.id == email_id), None)
+    if not em:
+        raise HTTPException(status_code=404, detail="Email not found")
+    _listener_emails.remove(em)
+    _save_emails()
+    return {"status": "deleted"}
+
+
 async def _signalwire_end_call(call_sid: str):
     """End a phone call via SignalWire REST API"""
     if not call_sid or not settings.signalwire_space: