105 lines
4.5 KiB
Python
105 lines
4.5 KiB
Python
from datetime import datetime
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from enum import Enum
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from sqlalchemy import DateTime, Enum as SAEnum, Float, ForeignKey, Integer, String, Text, UniqueConstraint
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from sqlalchemy.orm import Mapped, mapped_column, relationship
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from app.db import Base
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class DealType(str, Enum):
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SALE = "sale"
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RENT = "rent"
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class Source(str, Enum):
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PROPERTYFINDER = "propertyfinder"
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BAYUT = "bayut"
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class ListingStatus(str, Enum):
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ACTIVE = "active"
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REMOVED = "removed"
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class Employee(Base):
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__tablename__ = "employees"
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id: Mapped[int] = mapped_column(Integer, primary_key=True)
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name: Mapped[str] = mapped_column(String(200))
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portal_user_id: Mapped[str | None] = mapped_column(String(100), unique=True, index=True, nullable=True)
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tg_chat_id: Mapped[str | None] = mapped_column(String(64), unique=True, nullable=True)
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tg_username: Mapped[str | None] = mapped_column(String(200), nullable=True)
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created_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow)
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projects: Mapped[list["Project"]] = relationship(back_populates="owner")
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class Project(Base):
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"""Наш проект — квартира, которую агентство рекламирует."""
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__tablename__ = "projects"
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id: Mapped[int] = mapped_column(Integer, primary_key=True)
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title: Mapped[str] = mapped_column(String(300))
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deal_type: Mapped[DealType] = mapped_column(SAEnum(DealType))
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our_price: Mapped[float | None] = mapped_column(Float, nullable=True)
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notes: Mapped[str | None] = mapped_column(Text, nullable=True)
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# Опциональные параметры — используются для подсказок похожих объявлений
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dld_permit: Mapped[str | None] = mapped_column(String(100), index=True, nullable=True)
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building: Mapped[str | None] = mapped_column(String(300), nullable=True)
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bedrooms: Mapped[int | None] = mapped_column(Integer, nullable=True)
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size_sqft: Mapped[float | None] = mapped_column(Float, nullable=True)
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our_url: Mapped[str | None] = mapped_column(Text, nullable=True)
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owner_id: Mapped[int] = mapped_column(ForeignKey("employees.id"))
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owner: Mapped[Employee] = relationship(back_populates="projects")
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created_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow)
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last_checked_at: Mapped[datetime | None] = mapped_column(DateTime, nullable=True)
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listings: Mapped[list["CompetitorListing"]] = relationship(
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back_populates="project", cascade="all, delete-orphan"
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)
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class CompetitorListing(Base):
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"""Объявление конкурента, найденное на PF/Bayut по DLD permit нашего проекта."""
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__tablename__ = "competitor_listings"
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__table_args__ = (UniqueConstraint("project_id", "source", "external_id", name="uq_listing"),)
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id: Mapped[int] = mapped_column(Integer, primary_key=True)
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project_id: Mapped[int] = mapped_column(ForeignKey("projects.id"))
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project: Mapped[Project] = relationship(back_populates="listings")
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source: Mapped[Source] = mapped_column(SAEnum(Source))
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external_id: Mapped[str] = mapped_column(String(100)) # ID на стороне PF/Bayut
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url: Mapped[str] = mapped_column(Text)
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title: Mapped[str | None] = mapped_column(String(500), nullable=True)
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agent_name: Mapped[str | None] = mapped_column(String(300), nullable=True)
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agency_name: Mapped[str | None] = mapped_column(String(300), nullable=True)
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current_price: Mapped[float | None] = mapped_column(Float, nullable=True)
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currency: Mapped[str | None] = mapped_column(String(10), nullable=True, default="AED")
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status: Mapped[ListingStatus] = mapped_column(SAEnum(ListingStatus), default=ListingStatus.ACTIVE)
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first_seen_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow)
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last_seen_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow)
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price_history: Mapped[list["PriceHistory"]] = relationship(
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back_populates="listing", cascade="all, delete-orphan", order_by="PriceHistory.recorded_at.desc()"
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)
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class PriceHistory(Base):
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__tablename__ = "price_history"
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id: Mapped[int] = mapped_column(Integer, primary_key=True)
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listing_id: Mapped[int] = mapped_column(ForeignKey("competitor_listings.id"))
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listing: Mapped[CompetitorListing] = relationship(back_populates="price_history")
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price: Mapped[float | None] = mapped_column(Float, nullable=True)
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recorded_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow)
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