agentic.email/backend/app/services/handoff_mirror.py
2026-10-06 02:44:54 +05:30

108 lines
3.9 KiB
Python

from dataclasses import dataclass, field
from app.services.handoff_email_templates import (
build_mirror_handoff_html,
build_mirror_handoff_text,
build_mirror_update_html,
build_mirror_update_text,
format_sender_line,
)
from app.services.html_sanitizer import plain_text_to_html, sanitize_email_html
from app.services.mime_body_extractor import ExtractedMimePart, MirroredMimeContent, extract_mirror_content
from app.services.raw_mime_storage import get_raw_mime_storage
@dataclass
class HandoffMirrorPayload:
body_text: str
body_html: str | None
inline_parts: list[ExtractedMimePart] = field(default_factory=list)
file_attachments: list[ExtractedMimePart] = field(default_factory=list)
async def load_mirror_payload(external_message: dict) -> HandoffMirrorPayload:
sender = external_message.get("sender") or {}
sender_line = format_sender_line(sender)
external_subject = external_message.get("subject", "")
agent_email = external_message.get("_agent_email", "")
body_text = (external_message.get("body_text") or external_message.get("snippet") or "").strip()
body_html = external_message.get("body_html")
inline_parts: list[ExtractedMimePart] = []
file_attachments: list[ExtractedMimePart] = []
if external_message.get("raw_mime"):
try:
raw = await get_raw_mime_storage().get(external_message["raw_mime"])
extracted: MirroredMimeContent = extract_mirror_content(raw)
if extracted.body_text:
body_text = extracted.body_text
if extracted.body_html:
body_html = extracted.body_html
inline_parts = extracted.inline_parts
file_attachments = extracted.file_attachments
except Exception:
pass
if body_html:
original_html = sanitize_email_html(body_html)
elif body_text:
original_html = plain_text_to_html(body_text)
else:
original_html = plain_text_to_html("(No message body)")
if not body_text:
body_text = external_message.get("snippet") or "(No message body)"
return HandoffMirrorPayload(
body_text=build_mirror_handoff_text(
sender_line=sender_line,
external_subject=external_subject,
original_body_text=body_text,
agent_email=agent_email,
),
body_html=build_mirror_handoff_html(
sender_line=sender_line,
external_subject=external_subject,
original_html=original_html,
agent_email=agent_email,
),
inline_parts=inline_parts,
file_attachments=file_attachments,
)
async def load_mirror_update_payload(
external_message: dict,
*,
agent_email: str,
) -> HandoffMirrorPayload:
external_message = {**external_message, "_agent_email": agent_email}
payload = await load_mirror_payload(external_message)
sender = external_message.get("sender") or {}
sender_line = format_sender_line(sender)
external_subject = external_message.get("subject", "")
body_text = (external_message.get("body_text") or external_message.get("snippet") or "").strip()
body_html = external_message.get("body_html")
if body_html:
original_html = sanitize_email_html(body_html)
else:
original_html = plain_text_to_html(body_text or "(No message body)")
return HandoffMirrorPayload(
body_text=build_mirror_update_text(
sender_line=sender_line,
external_subject=external_subject,
original_body_text=body_text,
agent_email=agent_email,
),
body_html=build_mirror_update_html(
sender_line=sender_line,
external_subject=external_subject,
original_html=original_html,
agent_email=agent_email,
),
inline_parts=payload.inline_parts,
file_attachments=payload.file_attachments,
)