import uuid

from pydantic import BaseModel


class CategoryExpense(BaseModel):
    category_id: uuid.UUID
    category_name: str
    color: str | None
    amount_cents: int

    model_config = {"from_attributes": True}


class MonthlyTrend(BaseModel):
    month: str  # YYYY-MM
    income_cents: int
    expense_cents: int


class BudgetAlert(BaseModel):
    budget_id: uuid.UUID
    category_name: str
    limit_cents: int
    spent_cents: int
    percentage: float


class DashboardResponse(BaseModel):
    month: str
    balance_cents: int  # all-time cumulative balance
    total_income_cents: int  # month income
    total_expense_cents: int  # month expenses
    net_cents: int  # month net
    by_category: list[CategoryExpense]
    monthly_trend: list[MonthlyTrend]
    budget_alerts: list[BudgetAlert]