from __future__ import annotations

from datetime import datetime

from sqlalchemy import DateTime, ForeignKey, Index, String, Text, text
from sqlalchemy.orm import Mapped, mapped_column

from app.enums.private_portrait import (
    PRIVATE_PORTRAIT_REAL_PERSON_GROUP_TYPE,
    PrivatePortraitAssetGroupStatus,
    PrivatePortraitLibraryType,
    PrivatePortraitRemoteDeleteStatus,
)
from app.models.base import Base, SoftDeleteMixin, TimestampMixin


class PrivatePortraitAssetGroup(Base, TimestampMixin, SoftDeleteMixin):
    """本地项目组与火山 Asset Group 的映射。"""

    __tablename__ = "private_portrait_asset_groups"
    __table_args__ = (
        Index("uq_private_portrait_asset_groups_remote_group_id", "remote_group_id", unique=True),
        Index("idx_private_portrait_asset_groups_user_project", "user_id", "project_id"),
        Index("idx_private_portrait_asset_groups_user_library", "user_id", "library_type"),
        Index("idx_private_portrait_asset_groups_project_status", "project_id", "status"),
        Index("idx_private_portrait_asset_groups_remote_delete_status", "remote_delete_status"),
        Index("idx_private_portrait_asset_groups_remote_project_name", "remote_project_name"),
        Index("idx_private_portrait_asset_groups_library_type", "library_type"),
        Index(
            "uq_private_portrait_asset_groups_one_active_project",
            "project_id",
            unique=True,
            postgresql_where=text("deleted_at IS NULL AND status = 'active'"),
        ),
    )

    id: Mapped[str] = mapped_column(String(32), primary_key=True)
    user_id: Mapped[str] = mapped_column(String(32), ForeignKey("users.id", ondelete="CASCADE"), nullable=False, index=True)
    project_id: Mapped[str] = mapped_column(String(32), ForeignKey("private_portrait_projects.id", ondelete="CASCADE"), nullable=False, index=True)
    library_type: Mapped[str] = mapped_column(
        String(32),
        nullable=False,
        default=PrivatePortraitLibraryType.REAL_PERSON.value,
        server_default=PrivatePortraitLibraryType.REAL_PERSON.value,
        index=True,
    )
    remote_group_id: Mapped[str] = mapped_column(String(128), nullable=False, index=True)
    remote_group_name: Mapped[str | None] = mapped_column(String(128), nullable=True, index=True)
    remote_project_name: Mapped[str] = mapped_column(String(256), nullable=False, index=True)
    group_type: Mapped[str] = mapped_column(String(32), nullable=False, default=PRIVATE_PORTRAIT_REAL_PERSON_GROUP_TYPE, server_default=PRIVATE_PORTRAIT_REAL_PERSON_GROUP_TYPE)
    status: Mapped[str] = mapped_column(
        String(32),
        nullable=False,
        default=PrivatePortraitAssetGroupStatus.ACTIVE.value,
        server_default=PrivatePortraitAssetGroupStatus.ACTIVE.value,
        index=True,
    )
    remote_delete_status: Mapped[str] = mapped_column(
        String(32),
        nullable=False,
        default=PrivatePortraitRemoteDeleteStatus.NONE.value,
        server_default=PrivatePortraitRemoteDeleteStatus.NONE.value,
        index=True,
    )
    remote_deleted_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True)
    remote_delete_error: Mapped[str | None] = mapped_column(Text, nullable=True)
    raw_response_json: Mapped[str | None] = mapped_column(Text, nullable=True)