from __future__ import annotations

from dataclasses import dataclass, field


@dataclass(slots=True)
class OrderDraft:
    symbol: str
    side: str
    order_type: str
    quantity: str
    price: str | None = None
    status: str = "draft"


@dataclass(slots=True)
class OrderEntryContext:
    symbol: str
    side: str
    order_type: str
    balance_currency: str
    available_balance: float
    reference_price: float
    last_price: float
    bid_price: float
    ask_price: float
    quantity_presets: list[str]


@dataclass(slots=True)
class OrderValidationResult:
    is_valid: bool
    errors: list[str] = field(default_factory=list)