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582520a | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 | """SQLAlchemy models for conversations and leads."""
from __future__ import annotations
from datetime import datetime
from typing import Optional
from sqlalchemy import (
Boolean,
DateTime,
ForeignKey,
Integer,
String,
Text,
)
from sqlalchemy.orm import (
DeclarativeBase,
Mapped,
mapped_column,
relationship,
)
class Base(DeclarativeBase):
"""Declarative base."""
class Conversation(Base):
"""A chat session on web or WhatsApp."""
__tablename__ = "conversations"
id: Mapped[int] = mapped_column(Integer, primary_key=True)
channel: Mapped[str] = mapped_column(
String(32), default="web"
)
language: Mapped[str] = mapped_column(
String(8), default="en"
)
status: Mapped[str] = mapped_column(
String(32), default="active"
)
external_id: Mapped[Optional[str]] = mapped_column(
String(128), nullable=True
)
failure_streak: Mapped[int] = mapped_column(
Integer, default=0
)
resolved_without_human: Mapped[bool] = mapped_column(
Boolean, default=False
)
handed_off: Mapped[bool] = mapped_column(
Boolean, default=False
)
appointment_booked: Mapped[bool] = mapped_column(
Boolean, default=False
)
created_at: Mapped[datetime] = mapped_column(
DateTime, default=datetime.utcnow
)
updated_at: Mapped[datetime] = mapped_column(
DateTime,
default=datetime.utcnow,
onupdate=datetime.utcnow,
)
messages: Mapped[list["Message"]] = relationship(
back_populates="conversation",
cascade="all, delete-orphan",
order_by="Message.created_at",
)
lead: Mapped[Optional["Lead"]] = relationship(
back_populates="conversation",
uselist=False,
cascade="all, delete-orphan",
)
appointment: Mapped[Optional["Appointment"]] = (
relationship(
back_populates="conversation",
uselist=False,
cascade="all, delete-orphan",
)
)
class Message(Base):
"""Single message in a conversation."""
__tablename__ = "messages"
id: Mapped[int] = mapped_column(Integer, primary_key=True)
conversation_id: Mapped[int] = mapped_column(
ForeignKey("conversations.id"), index=True
)
role: Mapped[str] = mapped_column(String(16))
content: Mapped[str] = mapped_column(Text)
language: Mapped[Optional[str]] = mapped_column(
String(8), nullable=True
)
grounded: Mapped[Optional[bool]] = mapped_column(
Boolean, nullable=True
)
created_at: Mapped[datetime] = mapped_column(
DateTime, default=datetime.utcnow
)
conversation: Mapped["Conversation"] = relationship(
back_populates="messages"
)
class Lead(Base):
"""Prospect qualification data collected in chat."""
__tablename__ = "leads"
id: Mapped[int] = mapped_column(Integer, primary_key=True)
conversation_id: Mapped[int] = mapped_column(
ForeignKey("conversations.id"), unique=True
)
name: Mapped[Optional[str]] = mapped_column(
String(128), nullable=True
)
need: Mapped[Optional[str]] = mapped_column(
Text, nullable=True
)
budget: Mapped[Optional[str]] = mapped_column(
String(64), nullable=True
)
contact_channel: Mapped[Optional[str]] = mapped_column(
String(64), nullable=True
)
email: Mapped[Optional[str]] = mapped_column(
String(256), nullable=True
)
phone: Mapped[Optional[str]] = mapped_column(
String(64), nullable=True
)
complete: Mapped[bool] = mapped_column(
Boolean, default=False
)
created_at: Mapped[datetime] = mapped_column(
DateTime, default=datetime.utcnow
)
updated_at: Mapped[datetime] = mapped_column(
DateTime,
default=datetime.utcnow,
onupdate=datetime.utcnow,
)
conversation: Mapped["Conversation"] = relationship(
back_populates="lead"
)
class Appointment(Base):
"""Booked meeting slot."""
__tablename__ = "appointments"
id: Mapped[int] = mapped_column(Integer, primary_key=True)
conversation_id: Mapped[int] = mapped_column(
ForeignKey("conversations.id"), unique=True
)
slot_start: Mapped[str] = mapped_column(String(64))
slot_end: Mapped[str] = mapped_column(String(64))
attendee_name: Mapped[Optional[str]] = mapped_column(
String(128), nullable=True
)
attendee_email: Mapped[Optional[str]] = mapped_column(
String(256), nullable=True
)
external_id: Mapped[Optional[str]] = mapped_column(
String(128), nullable=True
)
status: Mapped[str] = mapped_column(
String(32), default="confirmed"
)
created_at: Mapped[datetime] = mapped_column(
DateTime, default=datetime.utcnow
)
conversation: Mapped["Conversation"] = relationship(
back_populates="appointment"
)
class UnansweredQuestion(Base):
"""Question the bot could not answer from KB."""
__tablename__ = "unanswered_questions"
id: Mapped[int] = mapped_column(Integer, primary_key=True)
conversation_id: Mapped[int] = mapped_column(
ForeignKey("conversations.id"), index=True
)
question: Mapped[str] = mapped_column(Text)
created_at: Mapped[datetime] = mapped_column(
DateTime, default=datetime.utcnow
)
class KnowledgeDoc(Base):
"""Ingested knowledge document metadata."""
__tablename__ = "knowledge_docs"
id: Mapped[int] = mapped_column(Integer, primary_key=True)
filename: Mapped[str] = mapped_column(String(256))
source_type: Mapped[str] = mapped_column(String(32))
chunk_count: Mapped[int] = mapped_column(Integer, default=0)
created_at: Mapped[datetime] = mapped_column(
DateTime, default=datetime.utcnow
)
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