36 lines
1.0 KiB
Python
36 lines
1.0 KiB
Python
from dataclasses import dataclass, field
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from datetime import datetime
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from typing import List, Set
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from mail_intake.models.message import MailIntakeMessage
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@dataclass
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class MailIntakeThread:
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"""
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Canonical internal representation of an email thread.
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Threads are the primary unit of reasoning for correspondence
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workflows (job applications, interviews, follow-ups, etc.).
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"""
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thread_id: str
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normalized_subject: str
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participants: Set[str] = field(default_factory=set)
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messages: List[MailIntakeMessage] = field(default_factory=list)
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last_activity_at: datetime | None = None
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def add_message(self, message: MailIntakeMessage) -> None:
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"""
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Add a message to the thread and update derived fields.
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"""
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self.messages.append(message)
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if message.from_email:
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self.participants.add(message.from_email)
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if self.last_activity_at is None or message.timestamp > self.last_activity_at:
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self.last_activity_at = message.timestamp
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