from typing import List, Optional

from sqlalchemy.orm import Session

from app.core.entities.status import StatusEntity
from app.infrastructure.database.models.statuses import Status
from app.infrastructure.database.repository.status_repository import StatusesRepository


class StatusesService:
    def __init__(self, db: Session):
        self.repository = StatusesRepository(db)

    def get_all_statuses(self) -> List[StatusEntity]:
        statuses = self.repository.get_all()
        return [
            StatusEntity(
                id=status.id,
                name=status.name,
                orders=[order.id for order in status.orders] if status.orders else [],
                steps=[step.id for step in status.steps] if status.steps else []
            )
            for status in statuses
        ]

    def get_status_by_id(self, status_id: int) -> Optional[StatusEntity]:
        status = self.repository.get_by_id(status_id)
        if status:
            return StatusEntity(
                id=status.id,
                name=status.name,
                orders=[order.id for order in status.orders] if status.orders else [],
                steps=[step.id for step in status.steps] if status.steps else []
            )
        return None

    def create_status(self, entity: StatusEntity) -> StatusEntity:
        status_model = Status(
            name=entity.name
        )
        created_status = self.repository.create(status_model)
        return StatusEntity(
            id=created_status.id,
            name=created_status.name,
            orders=[],
            steps=[]
        )

    def update_status(self, status_id: int, entity: StatusEntity) -> Optional[StatusEntity]:
        status_model = self.repository.get_by_id(status_id)
        if status_model:
            status_model.name = entity.name
            self.repository.update(status_model)
            return StatusEntity(
                id=status_model.id,
                name=status_model.name,
                orders=[order.id for order in status_model.orders] if status_model.orders else [],
                steps=[step.id for step in status_model.steps] if status_model.steps else []
            )
        return None

    def delete_status(self, status_id: int) -> bool:
        return self.repository.delete(status_id) is not None