feat(tree/repair): 检测器扩展 — visible_entities/ongoing_actions/spatial_layout 为空也触发修复
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"""树修复检测器:扫描 TreeIndex 识别缺失/低质量节点。"""
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from __future__ import annotations
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from dataclasses import dataclass
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from typing import TYPE_CHECKING
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from loguru import logger
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if TYPE_CHECKING:
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from pathlib import Path
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from app.tree.index import TreeIndex
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# 相邻 L2 片段之间允许的最大时间间隙(秒)
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_MAX_TIME_GAP_S = 1.0
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@dataclass(frozen=True)
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class NodeIssue:
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"""检测到的节点问题。
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参数:
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node_id: 问题节点 ID。
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level: 节点层级(1/2/3)。
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issue_type: 问题类型。
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details: 详细描述。
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"""
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node_id: str
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level: int
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issue_type: str # "empty_field" | "missing_frame" | "no_children" | "time_gap"
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details: str
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def detect_issues(
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index: TreeIndex,
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frames_dir: Path | None = None,
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) -> list[NodeIssue]:
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"""扫描树,返回所有问题节点列表。
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检查项:
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- L3: card 必填字段为空(frame_summary / visible_entities / ongoing_actions / spatial_layout)
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- L3: frame_path 对应文件不存在(需提供 frames_dir)
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- L2/L1: children 列表为空
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- L2: 相邻 clips 时间范围不连续(gap > 1秒)
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参数:
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index: 待检测的 TreeIndex。
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frames_dir: 帧文件根目录(可选,提供时检查帧文件存在性)。
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返回:
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问题列表,按 level 降序(L3 → L2 → L1)排列。
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"""
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issues: list[NodeIssue] = []
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for l1 in index.roots:
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# L1: children 不为空
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if not l1.children:
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issues.append(
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NodeIssue(
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node_id=l1.id,
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level=1,
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issue_type="no_children",
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details="L1 节点无 L2 子节点",
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)
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)
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continue
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# L2: 相邻 clips 时间间隙检查
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_check_time_gaps(l1.children, issues)
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for l2 in l1.children:
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# L2: children 不为空
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if not l2.children:
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issues.append(
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NodeIssue(
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node_id=l2.id,
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level=2,
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issue_type="no_children",
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details="L2 节点无 L3 子节点",
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)
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)
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continue
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for l3 in l2.children:
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# L3: 各必填字段不为空
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empty_fields: list[str] = []
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if not l3.card.frame_summary:
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empty_fields.append("frame_summary")
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if not l3.card.visible_entities:
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empty_fields.append("visible_entities")
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if not l3.card.ongoing_actions:
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empty_fields.append("ongoing_actions")
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if not l3.card.spatial_layout:
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empty_fields.append("spatial_layout")
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if empty_fields:
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issues.append(
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NodeIssue(
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node_id=l3.id,
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level=3,
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issue_type="empty_field",
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details=f"L3 节点字段为空: {', '.join(empty_fields)}",
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)
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)
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# L3: frame_path 文件存在性
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if (
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frames_dir is not None
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and l3.frame_path is not None
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and not (frames_dir / l3.frame_path).exists()
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):
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issues.append(
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NodeIssue(
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node_id=l3.id,
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level=3,
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issue_type="missing_frame",
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details=f"帧文件不存在: {l3.frame_path}",
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)
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)
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# 按 level 降序排列(L3=3 → L2=2 → L1=1)
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issues.sort(key=lambda i: -i.level)
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logger.info("树缺陷检测完成,发现 {} 个问题", len(issues))
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return issues
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def _check_time_gaps(
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l2_nodes: list,
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issues: list[NodeIssue],
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) -> None:
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"""检查同一 L1 下相邻 L2 节点之间的时间间隙。
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参数:
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l2_nodes: 同一 L1 节点下的 L2 子节点列表。
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issues: 问题列表(原地追加)。
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"""
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for i in range(len(l2_nodes) - 1):
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curr = l2_nodes[i]
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nxt = l2_nodes[i + 1]
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if curr.time_range is None or nxt.time_range is None:
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continue
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gap = nxt.time_range[0] - curr.time_range[1]
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if gap > _MAX_TIME_GAP_S:
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issues.append(
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NodeIssue(
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node_id=nxt.id,
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level=2,
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issue_type="time_gap",
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details=f"与前一片段间隙 {gap:.1f}s(阈值 {_MAX_TIME_GAP_S}s)",
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)
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)
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