from pydantic import Field
from sqlalchemy import (INTEGER,VARCHAR,)
from sqlalchemy.orm import (Mapped,mapped_column,relationship,Session)
from app.models.main import Base
from app.utils.schemas_utils import CustomModel

class SeafarererRoleBase(CustomModel):
    sf_role_id: int | None = Field(default=None)
    sf_role_name: str | None = Field(default=None)

class TblSeafarerRole(Base):
    
    __tablename__ = "tbl_seafarer_role"

    sf_role_id: Mapped[int] = mapped_column("sf_role_id", INTEGER, primary_key=True, autoincrement=True)
    sf_role_name: Mapped[str] = mapped_column("sf_role_name", VARCHAR(255), nullable=True, server_default=None)

    seafarers = relationship("TblSeafarers", back_populates="seafarer_role")
    companies = relationship("TblCompanyRoleMap", back_populates="seafarer_role")
   # company_course_roles = relationship("TblCompanyCourseRoleMap", back_populates="seafarer_role")
    
    def __init__(self, sf_role_id: int, sf_role_name: str):
        self.sf_role_id = sf_role_id
        self.sf_role_name = sf_role_name

    @classmethod
    def create(cls, data: SeafarererRoleBase, db: Session) -> "TblSeafarerRole":
        data_dict = data.model_dump()
        new_data = cls(**data_dict)
        db.add(new_data)
        db.flush()
        return new_data
    
    @classmethod
    def update(cls, sf_role_id: int, data: SeafarererRoleBase, db: Session) -> "TblSeafarerRole | None":
        get_data = db.query(cls).filter(cls.sf_role_id == sf_role_id).first()
        if not get_data:
            return None
        data_dict = data.model_dump()
        for key, value in data_dict.items():
            if value is not None:
                setattr(get_data, key, value)
        db.commit()
        db.refresh(get_data)
        return get_data