"""海报生成记录模型。"""
from sqlalchemy import Column, String, Text, BigInteger, Integer, TIMESTAMP, func
from insurance.db.compat import db


class PosterRecord(db.Model):
    """海报生成记录表。"""
    __tablename__ = "poster_records"

    id = Column(BigInteger, primary_key=True, autoincrement=True)
    user_id = Column(String(50), nullable=False, comment="用户 ID")
    product_id = Column(String(50), nullable=True, comment="产品 ID")
    product_source_type = Column(String(20), nullable=True, comment="library_product/user_material")
    product_source_id = Column(String(64), nullable=True, comment="产品来源 ID")
    product_snapshot_json = Column(Text, nullable=True, comment="提交生成时的产品快照 JSON")
    case_upload_id = Column(BigInteger, nullable=True, comment="关联计划书上传 ID")
    template_id = Column(BigInteger, nullable=True, comment="海报模板 ID")
    copy_mode = Column(String(20), nullable=True, comment="文案模式: template/ai")
    copy_content = Column(Text, nullable=True, comment="最终文案 JSON")
    ai_raw_content = Column(Text, nullable=True, comment="AI 原始文案 JSON（合规留痕）")
    export_url = Column(String(500), nullable=True, comment="导出文件地址")
    export_format = Column(String(10), nullable=True, comment="导出格式: png/jpg")
    export_size = Column(String(20), nullable=True, comment="导出尺寸")
    reference_image_used = Column(String(500), nullable=True, comment="使用的参考图（合规留痕）")
    prompt_used = Column(Text, nullable=True, comment="完整 prompt（合规留痕）")
    generation_mode = Column(String(20), nullable=True, comment="生成方式: ai/fallback")
    image_provider = Column(String(50), nullable=True, comment="图片供应商")
    image_model = Column(String(100), nullable=True, comment="图片模型名称")
    task_status = Column(String(20), default="pending", comment="任务状态: pending/queued/generating/background_ready/done/failed")
    task_progress = Column(db.Integer, default=0, comment="任务进度 0-100")
    task_error = Column(Text, nullable=True, comment="任务错误信息")
    extra_data = Column(Text, nullable=True, comment="扩展数据 JSON（如品牌策略、输出模式）")
    document_json = Column(Text, nullable=True, comment="可编辑海报文档 JSON")
    document_revision = Column(Integer, default=1, comment="海报文档版本")
    background_file_url = Column(String(500), nullable=True, comment="AI 背景图文件地址")
    compliance_json = Column(Text, nullable=True, comment="服务端合规检查结果 JSON")
    compliance_revision = Column(String(64), nullable=True, comment="合规文案哈希")
    # 工作区字段（migrate_022）
    title = Column(String(200), default="", comment="工作区名称")
    workflow_step = Column(String(20), default="product", comment="当前业务步骤")
    draft_status = Column(String(20), default="active", comment="active/archived")
    draft_revision = Column(Integer, default=1, comment="当前草稿版本")
    generated_revision = Column(Integer, default=0, comment="最新成品版本")
    latest_task_id = Column(String(36), nullable=True, comment="最近任务 ID")
    archived_at = Column(TIMESTAMP, nullable=True, comment="归档时间")
    started_at = Column(TIMESTAMP, nullable=True, comment="任务开始时间")
    finished_at = Column(TIMESTAMP, nullable=True, comment="任务完成时间")
    created_at = Column(TIMESTAMP, server_default=func.now())

    def to_dict(self):
        import json

        def _safe_json(text):
            if not text:
                return None
            try:
                return json.loads(text)
            except (json.JSONDecodeError, TypeError):
                return None

        return {
            "id": self.id,
            "userId": self.user_id,
            "productId": self.product_id,
            "productSource": {
                "type": self.product_source_type or "library_product",
                "id": self.product_source_id or self.product_id,
            },
            "productSnapshot": _safe_json(self.product_snapshot_json),
            "caseUploadId": self.case_upload_id,
            "templateId": self.template_id,
            "copyMode": self.copy_mode,
            "copyContent": _safe_json(self.copy_content),
            "aiRawContent": _safe_json(self.ai_raw_content),
            "exportUrl": self.export_url,
            "exportFormat": self.export_format,
            "exportSize": self.export_size,
            "referenceImageUsed": self.reference_image_used,
            "promptUsed": self.prompt_used,
            "generationMode": self.generation_mode,
            "imageProvider": self.image_provider,
            "imageModel": self.image_model,
            "taskStatus": self.task_status,
            "taskProgress": self.task_progress,
            "taskError": self.task_error,
            "extraData": _safe_json(self.extra_data),
            "document": _safe_json(self.document_json),
            "documentRevision": self.document_revision or 1,
            "backgroundUrl": (
                f"/insurance/poster/records/{self.id}/background"
                if self.background_file_url else None
            ),
            "compliance": _safe_json(self.compliance_json),
            "complianceRevision": self.compliance_revision or "",
            "title": self.title or "",
            "workflowStep": self.workflow_step or "product",
            "draftStatus": self.draft_status or "active",
            "draftRevision": self.draft_revision or 1,
            "generatedRevision": self.generated_revision or 0,
            "latestTaskId": self.latest_task_id,
            "archivedAt": self.archived_at.isoformat() if self.archived_at else None,
            "startedAt": self.started_at.isoformat() if self.started_at else None,
            "finishedAt": self.finished_at.isoformat() if self.finished_at else None,
            "createdAt": self.created_at.isoformat() if self.created_at else None,
        }