from datetime import datetime

import sqlalchemy as sa
from fansifter_common.utils import timezone
from fansifter_common.utils.uuid import uuid_string
from sqlalchemy.ext.associationproxy import AssociationProxy, association_proxy
from sqlalchemy.orm import Mapped, mapped_column, relationship

from email_campaigns.adapters.db import Model


class EmailReportingReportEmail(Model, kw_only=True):
    __tablename__ = "email_reporting_report_email"

    report_id: Mapped[str] = mapped_column(
        sa.ForeignKey("email_reporting_report.id", ondelete="CASCADE"),
        primary_key=True,
        init=False,
    )
    email_id: Mapped[str] = mapped_column(primary_key=True)


class EmailReportingReport(Model, kw_only=True):
    __tablename__ = "email_reporting_report"
    __table_args__ = (sa.UniqueConstraint("identity_id", "name"),)

    id: Mapped[str] = mapped_column(primary_key=True, default_factory=uuid_string)
    identity_id: Mapped[str]
    name: Mapped[str]
    created_at: Mapped[datetime] = mapped_column(default_factory=timezone.now)
    updated_at: Mapped[datetime] = mapped_column(
        default_factory=timezone.now, onupdate=timezone.now
    )

    report_emails: Mapped[list[EmailReportingReportEmail]] = relationship(
        default_factory=list,
        cascade="all, delete-orphan",
        passive_deletes=True,
        lazy="selectin",
        init=False,
        repr=False,
    )
    _email_ids: AssociationProxy[list[str]] = association_proxy(
        "report_emails",
        "email_id",
        default_factory=list,
        creator=lambda email_id: EmailReportingReportEmail(email_id=email_id),
    )

    @property
    def email_ids(self) -> list[str]:
        return list(self._email_ids)

    @email_ids.setter
    def email_ids(self, email_ids: list[str]) -> None:
        self._email_ids = email_ids

    @property
    def emails_count(self) -> int:
        return len(self.report_emails)