feat: client endpoints for clients page

modules/clients/models/__init__.py

@@ -0,0 +1 @@
+from .client import Client as Client, ClientDetails as ClientDetails

modules/clients/models/client.py

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+from datetime import datetime
+from typing import Optional, TYPE_CHECKING
+
+from sqlalchemy import ForeignKey
+from sqlalchemy.orm import relationship, Mapped, mapped_column
+
+from models.base import BaseModel
+from models.mixins import IdMixin, CreatedAtMixin, SoftDeleteMixin, LastModifiedAtMixin
+
+if TYPE_CHECKING:
+    from models import Product
+
+
+class Client(BaseModel, IdMixin, CreatedAtMixin, SoftDeleteMixin):
+    __tablename__ = "clients"
+
+    name: Mapped[str] = mapped_column(unique=True, comment="Название клиента")
+
+    company_name: Mapped[str] = mapped_column(
+        nullable=False,
+        comment="Название компании",
+    )
+
+    products: Mapped[list["Product"]] = relationship(
+        back_populates="client", lazy="noload"
+    )
+
+    details: Mapped["ClientDetails"] = relationship(
+        uselist=False,
+        back_populates="client",
+        cascade="all, delete",
+        lazy="joined",
+    )
+
+    comment: Mapped[Optional[str]] = mapped_column(comment="Комментарий")
+
+
+class ClientDetails(BaseModel, IdMixin, LastModifiedAtMixin):
+    __tablename__ = "client_details"
+
+    client_id: Mapped[int] = mapped_column(
+        ForeignKey("clients.id"), unique=True, comment="ID клиента"
+    )
+    client: Mapped[Client] = relationship(
+        back_populates="details", cascade="all, delete", uselist=False
+    )
+
+    telegram: Mapped[Optional[str]] = mapped_column()
+    phone_number: Mapped[Optional[str]] = mapped_column()
+    inn: Mapped[Optional[str]] = mapped_column()
+    email: Mapped[Optional[str]] = mapped_column()