Improve CarPass product UX and service flows

app/models/expense.py

@@ -2,7 +2,7 @@ import enum
 from datetime import date, datetime
 from decimal import Decimal
 
-from sqlalchemy import Date, DateTime, Enum, ForeignKey, Numeric, String, Text, func
+from sqlalchemy import Boolean, Date, DateTime, Enum, ForeignKey, Numeric, String, Text, func
 from sqlalchemy.orm import Mapped, mapped_column, relationship
 
 from app.db.base import Base
@@ -19,6 +19,29 @@ class ServiceType(str, enum.Enum):
     other = "other"
 
 
+class ExpenseCategory(str, enum.Enum):
+    insurance = "insurance"
+    tax = "tax"
+    fine = "fine"
+    parking = "parking"
+    car_wash = "car_wash"
+    toll = "toll"
+    tires = "tires"
+    wheels = "wheels"
+    battery = "battery"
+    parts = "parts"
+    repair = "repair"
+    maintenance = "maintenance"
+    diagnostics = "diagnostics"
+    towing = "towing"
+    loan_payment = "loan_payment"
+    loan_interest = "loan_interest"
+    state_fee = "state_fee"
+    registration = "registration"
+    inspection = "inspection"
+    other = "other"
+
+
 class FuelEntry(Base):
     __tablename__ = "fuel_entries"
 
@@ -56,3 +79,25 @@ class ServiceEntry(Base):
     created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())
 
     car = relationship("Car", back_populates="service_entries")
+
+
+class ExpenseEntry(Base):
+    __tablename__ = "expense_entries"
+
+    id: Mapped[int] = mapped_column(primary_key=True)
+    car_id: Mapped[int] = mapped_column(ForeignKey("cars.id", ondelete="CASCADE"), index=True)
+    entry_date: Mapped[date] = mapped_column(Date, index=True)
+    category: Mapped[ExpenseCategory] = mapped_column(Enum(ExpenseCategory), index=True)
+    title: Mapped[str] = mapped_column(String(180))
+    vendor: Mapped[str | None] = mapped_column(String(160))
+    total_cost: Mapped[Decimal] = mapped_column(Numeric(12, 2))
+    currency: Mapped[str] = mapped_column(String(3), default="RUB", server_default="RUB")
+    odometer: Mapped[int | None]
+    period_start: Mapped[date | None] = mapped_column(Date)
+    period_end: Mapped[date | None] = mapped_column(Date)
+    period_months: Mapped[int | None]
+    is_recurring: Mapped[bool] = mapped_column(Boolean, default=False, server_default="false")
+    notes: Mapped[str | None] = mapped_column(Text)
+    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())
+
+    car = relationship("Car", back_populates="expense_entries")