from sqlalchemy import (
    Column,
    String,
    types,
)
from sqlalchemy.dialects.postgresql import UUID
import uuid
from typing import Literal


from .database import Base

# DOMAIN_URL = os.environ.get("DOMAIN_URL", "localhost")

StatusType = Literal["offline", "online", "webhook_error", "token_error"]


class ChoiceType(types.TypeDecorator):
    impl = types.String

    def __init__(self, choices, **kw):
        self.choices = dict(choices)
        super(ChoiceType, self).__init__(**kw)

    def process_bind_param(self, value, dialect):
        return [k for k, v in self.choices.items() if v == value][0]

    def process_result_value(self, value, dialect):
        return self.choices[value]


class TelegramUpload(Base):
    __tablename__ = "telegramuploads"

    id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
    path = Column(String, index=True)
    file_id = Column(String, index=True, default=None)
    type = Column(
        ChoiceType(
            {
                "pic": "pic",
                "gif": "gif",
            }
        ),
        default=None,
    )