from dataclasses import dataclass, field
from uuid import UUID, uuid4


@dataclass
class ForecastScenario:
    id: UUID = field(default_factory=uuid4)
    name: str = "baseline"
    income_multiplier: float = 1.0
    expense_multiplier: float = 1.0
    growth_multiplier: float = 1.0
    description: str = ""

    def to_dict(self) -> dict:
        return {
            "id": str(self.id),
            "name": self.name,
            "income_multiplier": self.income_multiplier,
            "expense_multiplier": self.expense_multiplier,
            "growth_multiplier": self.growth_multiplier,
            "description": self.description,
        }

    @classmethod
    def from_dict(cls, data: dict) -> "ForecastScenario":
        return cls(
            id=UUID(data["id"]),
            name=data["name"],
            income_multiplier=data.get("income_multiplier", 1.0),
            expense_multiplier=data.get("expense_multiplier", 1.0),
            growth_multiplier=data.get("growth_multiplier", 1.0),
            description=data.get("description", ""),
        )