"""人物资料导入模型（api-spec §8；契约字典 §10）。

导入流水线把用户授权的聊天记录、人物设定、背景故事、角色卡、语气样例、
语音样本等资料解析为可追溯的 ``import_items``，再由后续阶段抽取为
档案 / 记忆 / 人格候选。``import_items.id`` 作为候选的 evidence 来源
（source_type = ``import_item``）。
"""

from datetime import datetime

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

from app.core.ids import new_import_item_id, new_import_job_id
from app.core.time import utc_now
from app.db.base import Base


class CharacterImportJob(Base):
    """导入任务（契约字典 §10.3 状态机；api-spec §8）。"""

    __tablename__ = "character_import_jobs"

    id: Mapped[str] = mapped_column(String(80), primary_key=True, default=new_import_job_id)
    character_id: Mapped[str] = mapped_column(String(80), ForeignKey("characters.id"), index=True)
    material_type: Mapped[str] = mapped_column(String(40), nullable=False, index=True)
    source_type: Mapped[str] = mapped_column(String(40), nullable=False)
    title: Mapped[str | None] = mapped_column(String(200))
    status: Mapped[str] = mapped_column(String(40), nullable=False, default="pending", index=True)
    format: Mapped[str] = mapped_column(String(40), nullable=False, default="text")
    media_type: Mapped[str | None] = mapped_column(String(40))
    mime_type: Mapped[str | None] = mapped_column(String(80))
    source_description: Mapped[str | None] = mapped_column(Text)
    speaker_label: Mapped[str | None] = mapped_column(String(120))
    consent_status: Mapped[str] = mapped_column(String(40), nullable=False, default="unknown")
    usage_scope: Mapped[str] = mapped_column(String(40), nullable=False, default="reference_only")
    checksum: Mapped[str | None] = mapped_column(String(120), index=True)
    item_count: Mapped[int] = mapped_column(Integer, nullable=False, default=0)
    storage_path: Mapped[str | None] = mapped_column(String(500))
    raw_content: Mapped[str | None] = mapped_column(Text)
    error_code: Mapped[str | None] = mapped_column(String(80))
    error_message: Mapped[str | None] = mapped_column(Text)
    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=utc_now)
    updated_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True), default=utc_now, onupdate=utc_now
    )


class ImportItem(Base):
    """导入解析条目（契约字典 §10.4 item_type / §10.5 role）。"""

    __tablename__ = "import_items"

    id: Mapped[str] = mapped_column(String(80), primary_key=True, default=new_import_item_id)
    import_job_id: Mapped[str] = mapped_column(
        String(80), ForeignKey("character_import_jobs.id"), index=True
    )
    character_id: Mapped[str] = mapped_column(String(80), ForeignKey("characters.id"), index=True)
    item_type: Mapped[str] = mapped_column(String(40), nullable=False)
    role: Mapped[str] = mapped_column(String(40), nullable=False, default="other")
    sequence: Mapped[int] = mapped_column(Integer, nullable=False, default=0)
    content: Mapped[str] = mapped_column(Text, nullable=False)
    metadata_json: Mapped[str] = mapped_column(Text, nullable=False, default="{}")
    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=utc_now)