from pydantic import BaseModel, Field
from sqlalchemy.orm import Mapped, mapped_column, relationship, Session
from sqlalchemy import Integer, Text, Enum, ForeignKey
from app.models.base_class import Base

class CustomerEngagementBase(BaseModel):
    customer_id : int | None = Field(default=None)
    reference_competitor : str | None = Field(default=None)
    do_they_have_a_loyalty_program : str | None = Field(default=None)
    what_kind_of_loyality : str | None = Field(default=None)
    what_are_same_key : str | None = Field(default=None)
    do_you_think_this : str | None = Field(default=None)
    other_remarks : str | None = Field(default=None)
    group_id : int | None = Field(default=None)

class TblCustomerEngagement(Base):
    __tablename__ = "tbl_customer_engagement"
    customer_id : Mapped[int] = mapped_column("customer_id", Integer, primary_key=True, autoincrement=True)
    reference_competitor : Mapped[str] = mapped_column("reference_competitor", Text, nullable=True, server_default=None)
    do_they_have_a_loyalty_program : Mapped[str] = mapped_column("do_they_have_a_loyalty_program", Enum("Yes","No"))
    what_kind_of_loyality : Mapped[str] = mapped_column("what_kind_of_loyality", Text, nullable=True, server_default=None)
    what_are_same_key : Mapped[str] = mapped_column("what_are_same_key", Text, nullable=True, server_default=None)
    do_you_think_this : Mapped[str] = mapped_column("do_you_think_this", Text, nullable=True, server_default=None)
    other_remarks : Mapped[str] = mapped_column("other_remarks", Text, nullable=True, server_default=None)
    group_id : Mapped[int] = mapped_column("group_id", Integer, ForeignKey("tbl_group.group_id"))
    
    group = relationship("TblGroup", back_populates="customer_engagement")
    
    @classmethod
    def create_customer(cls, data:CustomerEngagementBase, db:Session) ->"TblCustomerEngagement":
        data_dict = cls(**data.model_dump())
        db.add(data_dict)
        db.flush()
        return data_dict
    
    @classmethod
    def get_customer(cls, group_id:int, db:Session) ->"TblCustomerEngagement":
        get_group = db.query(cls).filter(cls.group_id == group_id).all()
        return get_group
    
    @classmethod
    def update_customer(cls, update_id:int, data:CustomerEngagementBase, db:Session) ->"TblCustomerEngagement":
        update_data = db.query(cls).filter(cls.customer_id == update_id).first()
        data_dict = data.model_dump()
        for key, value in data_dict.items():
            if value is not None:
                setattr(update_data, key, value)
        db.commit()
        db.refresh(update_data)
        return update_data
    
    @classmethod
    def delete_customer(cls, customer_id:int, db:Session) ->"TblCustomerEngagement":
        delete_data = db.query(cls).filter(cls.customer_id == customer_id).first()
        if not delete_data:
            return False
        db.delete(delete_data)
        db.commit()
        return True