import abc

from enums import DetailsType, Questions


class SavedDetails(abc.ABC):

    excluded_fields = ["type_"]
    def __init__(self, type_: DetailsType):
        self.type_ = type_

    @classmethod
    def load(cls, data: dict):
        type_ = data.get("type_")
        if not type_ or type_ != cls.type_:
            raise ValueError(f"the expected type is {cls.type_} but is actually {type_}")
        return cls.__init__(**{k: v for k, v in data if k != "type"})

    def to_json(self):
        return {k:v for k,v in self.__dict__.items() if k not in self.excluded_fields}

    def to_answers(self):
        pass

class PersonalDetails(SavedDetails):
    type_ = DetailsType.PERSONAL_DETAILS

    def __init__(self, full_name, email, contact_number, *_):
        super().__init__(self.type_)
        self.full_name = full_name
        self.email = email
        self.contact_number = contact_number

    def to_answers(self) -> dict[Questions, str]:
        answers = {}
        if self.full_name is not None:
            answers[Questions.FULL_NAME] = self.full_name
        if self.email is not None:
            answers[Questions.YOUR_EMAIL] = self.email
        if self.contact_number is not None:
            answers[Questions.CONTACT_NUMBER] = self.contact_number
        return answers

class LocationDetails(SavedDetails):
    type_ = DetailsType.LOCATION_DETAILS

    def __init__(self, owner_or_tenant: str, community: str, building: str, unit_number: str, *_):
        super().__init__(self.type_)
        self.owner_or_tenant = owner_or_tenant
        self.community = community
        self.building = building
        self.unit_number = unit_number

    def to_answers(self) -> dict[Questions, str]:
        answers = {}
        if self.owner_or_tenant is not None:
            answers[Questions.OWNER_OR_TENANT] = self.owner_or_tenant
        if self.building is not None:
            answers[Questions.BUILDING] = self.building
        if self.community is not None:
            answers[Questions.COMMUNITY] = self.community
        if self.unit_number is not None:
            answers[Questions.UNIT_APT_NUMBER] = self.unit_number
        return answers

class ContractorDetails(SavedDetails):
    type_ = DetailsType.CONTRACTOR_DETAILS

    def __init__(self, contractor_name: str, contractor_contact_number: str, contractor_email: str, *_):
        super().__init__(self.type_)
        self.contractor_name = contractor_name
        self.contractor_contact_number = contractor_contact_number
        self.contractor_email = contractor_email

    def to_answers(self) -> dict[Questions, str]:
        answers = {}
        if self.contractor_email is not None:
            answers[Questions.COMPANY_EMAIL] = self.contractor_email
        if self.contractor_contact_number is not None:
            answers[Questions.COMPANY_NUMBER] = self.contractor_contact_number
        if self.contractor_name is not None:
            answers[Questions.COMPANY_NAME] = self.contractor_name
        return answers