from __future__ import annotations

from datetime import datetime

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

from app.enums.private_portrait import PrivatePortraitLibraryType, PrivatePortraitProjectStatus
from app.models.base import Base, SoftDeleteMixin, TimestampMixin


class PrivatePortraitProject(Base, TimestampMixin, SoftDeleteMixin):
    """用户本地私域人像素材项目组。remote_project_name 是火山 ProjectName 快照。"""

    __tablename__ = "private_portrait_projects"
    __table_args__ = (
        Index("idx_private_portrait_projects_user_library_status_created", "user_id", "library_type", "status", "created_at"),
        Index("idx_private_portrait_projects_user_status_created", "user_id", "status", "created_at"),
        Index(
            "idx_private_portrait_projects_user_deleted",
            "user_id",
            "deleted_at",
            postgresql_where=text("deleted_at IS NULL"),
        ),
        Index("idx_private_portrait_projects_remote_project_name", "remote_project_name"),
        Index("idx_private_portrait_projects_library_type", "library_type"),
    )

    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)
    library_type: Mapped[str] = mapped_column(
        String(32),
        nullable=False,
        default=PrivatePortraitLibraryType.REAL_PERSON.value,
        server_default=PrivatePortraitLibraryType.REAL_PERSON.value,
        index=True,
        comment="素材库类型：real_person 真人认证；aigc_virtual 虚拟人像",
    )
    name: Mapped[str] = mapped_column(String(128), nullable=False, index=True, comment="用户展示项目名")
    name_slug: Mapped[str] = mapped_column(String(128), nullable=False, index=True, comment="项目名安全 slug")
    remote_project_name: Mapped[str] = mapped_column(String(256), nullable=False, index=True, comment="火山 ProjectName 快照")
    description: Mapped[str | None] = mapped_column(Text, nullable=True)
    status: Mapped[str] = mapped_column(
        String(32),
        nullable=False,
        default=PrivatePortraitProjectStatus.ACTIVE.value,
        server_default=PrivatePortraitProjectStatus.ACTIVE.value,
        index=True,
    )
    asset_group_count: Mapped[int] = mapped_column(Integer, nullable=False, default=0, server_default="0")
    asset_count: Mapped[int] = mapped_column(Integer, nullable=False, default=0, server_default="0")
    image_asset_count: Mapped[int] = mapped_column(Integer, nullable=False, default=0, server_default="0")
    video_asset_count: Mapped[int] = mapped_column(Integer, nullable=False, default=0, server_default="0")
    active_asset_count: Mapped[int] = mapped_column(Integer, nullable=False, default=0, server_default="0")
    active_image_asset_count: Mapped[int] = mapped_column(Integer, nullable=False, default=0, server_default="0")
    active_video_asset_count: Mapped[int] = mapped_column(Integer, nullable=False, default=0, server_default="0")
    last_used_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True)