from __future__ import annotations

from datetime import datetime

from eloquent import Model  # type: ignore

from config import DB


class AnsweredFlag (Model):
    id:         int
    answer_id:  int
    platform:   int
    answered:   bool

    __timestamps__ = False

    @property
    def answer (
            self,
    ) -> Answer:
        return self.belongs_to (Answer)


class Answer (Model):
    id:             int
    query_id:       int
    character:      int
    content:        str
    answer_type:    int
    sent_at:        datetime

    __timestamps__ = False

    @property
    def query (
            self,
    ) -> Query:
        return self.belongs_to (Query)

    def answered (
            self,
            platform:   int,
    ) -> bool | None:
        answered_flag = (AnsweredFlag.where ('answer_id', self.id)
                         .where ('platform', platform)
                         .first ())
        if answered_flag is None:
            return None
        return answered_flag.answered


class Query (Model):
    id:                 int
    user_id:            int | None
    target_character:   int
    content:            str
    image_url:          str | None
    query_type:         int
    model:              int
    sent_at:            datetime
    answered:           bool

    __timestamps__ = False

    @property
    def user (
            self,
    ) -> User:
        return self.belongs_to (User)

    @property
    def answer_histories (
            self,
    ) -> list[Answer]:
        return [x.answer for x in self.has_many (QueryAnswerHistory).get ()]


class QueryAnswerHistory (Model):
    id:         int
    query_id:   int
    answer_id:  int

    @property
    def query (
            self,
    ) -> Query:
        return self.belongs_to (Query)

    @property
    def answer (
            self,
    ) -> Answer:
        return self.belongs_to (Answer)


class User (Model):
    id:         int
    platform:   int
    code:       str
    name:       str
    icon:       bytes