from dataclasses import dataclass
from datetime import datetime

DEALS_PER_PAGE = 5
MAX_DEAL_MESSAGE_LENGTH = 3900


@dataclass(frozen=True)
class Binding:
    member_id: str
    domain: str
    bitrix_user_id: int
    telegram_user_id: int


@dataclass(frozen=True)
class OAuthCredentials:
    member_id: str
    domain: str
    bitrix_user_id: int
    access_token: bytes
    refresh_token: bytes
    expires_at: datetime
    version: int


@dataclass(frozen=True)
class ClientInfo:
    name: str | None = None
    company: str | None = None
    phone: str | None = None


@dataclass(frozen=True)
class DealStageFilter:
    key: str
    title: str
    stage_id: str | None
    assigned_to_viewer: bool = False


@dataclass(frozen=True)
class DealStage:
    stage_id: str
    title: str
    semantics: str

    @property
    def is_final(self) -> bool:
        return self.semantics in {"S", "F"}


@dataclass(frozen=True)
class DealStageAdvance:
    deal_id: str
    current_stage_id: str
    target_stage_id: str
    target_stage_title: str
    is_final: bool


@dataclass(frozen=True)
class DealPage:
    deals: list[dict]
    page: int
    total_deals: int
    total_pages: int
    stage_filter: DealStageFilter
    stage_filters: tuple[DealStageFilter, ...]

    @property
    def has_next(self) -> bool:
        return self.page + 1 < self.total_pages