192 lines
7.4 KiB
Python
192 lines
7.4 KiB
Python
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# ruff: noqa: E501
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from __future__ import annotations
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import html
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from dataclasses import dataclass
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@dataclass(frozen=True)
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class RiskRuleFlowDiagramField:
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key: str
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label: str
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@dataclass(frozen=True)
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class RiskRuleFlowDiagramSpec:
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title: str
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domain_label: str
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severity: str
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severity_label: str
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fields: tuple[RiskRuleFlowDiagramField, ...]
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start: str
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evidence: str
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decision: str
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basis: str
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pass_text: str
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fail_text: str
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@dataclass(frozen=True)
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class RiskRuleFlowDiagramPalette:
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accent: str
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accent_dark: str
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border: str
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surface: str
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class RiskRuleFlowDiagramRenderer:
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"""按 fireworks-tech-graph Style 7 OpenAI Official 生成只读流程 SVG。"""
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_FONT = (
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"-apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica Neue, "
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"'PingFang SC', 'Microsoft YaHei', 'Microsoft JhengHei', 'SimHei', sans-serif"
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)
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_TEXT = "#0d0d0d"
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_MUTED = "#6e6e80"
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_NEUTRAL_LINE = "#cbd5e1"
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_NEUTRAL_BORDER = "#e2e8f0"
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_NEUTRAL_SURFACE = "#ffffff"
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_PALETTES = {
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"low": RiskRuleFlowDiagramPalette(
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accent="#2563eb",
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accent_dark="#1d4ed8",
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border="#bfdbfe",
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surface="#eff6ff",
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),
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"medium": RiskRuleFlowDiagramPalette(
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accent="#f97316",
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accent_dark="#c2410c",
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border="#fed7aa",
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surface="#fff7ed",
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),
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"high": RiskRuleFlowDiagramPalette(
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accent="#dc2626",
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accent_dark="#b91c1c",
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border="#fecaca",
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surface="#fef2f2",
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),
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}
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def render(self, spec: RiskRuleFlowDiagramSpec) -> str:
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title = self._truncate(spec.title, 26)
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palette = self._palette(spec.severity)
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return f"""<svg xmlns="http://www.w3.org/2000/svg" width="760" height="280" viewBox="0 0 760 280" data-risk-flow-style="review-node-only" role="img" aria-labelledby="risk-flow-title risk-flow-desc">
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<title id="risk-flow-title">{self._escape(title)}流程说明</title>
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<desc id="risk-flow-desc">风险规则只读流程图，展示从业务单据提交到风险复核的判断路径。</desc>
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<defs>
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<marker id="arrow-neutral" markerWidth="10" markerHeight="7" refX="9" refY="3.5" orient="auto">
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<polygon points="0 0, 10 3.5, 0 7" fill="{self._NEUTRAL_LINE}"/>
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</marker>
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</defs>
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<rect width="760" height="280" fill="#ffffff"/>
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<rect x="18" y="18" width="724" height="244" rx="8" ry="8" fill="none" stroke="{self._NEUTRAL_BORDER}" stroke-width="1" stroke-dasharray="4,3"/>
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<text x="34" y="43" fill="{self._MUTED}" font-family="{self._FONT}" font-size="11" font-weight="500">RULE FLOW</text>
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{self._node("业务输入", spec.start, 48, 118, 124, 60)}
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{self._node("字段取数", "读取字段证据", 214, 118, 132, 60)}
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{self._diamond("判断依据", spec.decision, 392, 92, 112, 112)}
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{self._node("继续流转", spec.pass_text, 562, 74, 126, 60)}
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{self._node("进入复核", spec.fail_text, 562, 190, 126, 62, palette=palette)}
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{self._note(spec.basis, 214, 218, 290, 36)}
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<line x1="172" y1="148" x2="214" y2="148" stroke="{self._NEUTRAL_LINE}" stroke-width="1.45" marker-end="url(#arrow-neutral)"/>
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<line x1="346" y1="148" x2="392" y2="148" stroke="{self._NEUTRAL_LINE}" stroke-width="1.45" marker-end="url(#arrow-neutral)"/>
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<path d="M 504 127 L 532 127 L 532 104 L 562 104" fill="none" stroke="{self._NEUTRAL_LINE}" stroke-width="1.35" marker-end="url(#arrow-neutral)"/>
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<text x="534" y="119" text-anchor="middle" fill="{self._MUTED}" font-family="{self._FONT}" font-size="10.5" font-weight="400">否</text>
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<path d="M 504 169 L 532 169 L 532 221 L 562 221" fill="none" stroke="{self._NEUTRAL_LINE}" stroke-width="1.8" marker-end="url(#arrow-neutral)"/>
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<text x="534" y="195" text-anchor="middle" fill="{self._MUTED}" font-family="{self._FONT}" font-size="10.5" font-weight="600">是</text>
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</svg>"""
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def _node(
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self,
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title: str,
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body: str,
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x: int,
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y: int,
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width: int,
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height: int,
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palette: RiskRuleFlowDiagramPalette | None = None,
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) -> str:
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body_lines = self._wrap(body, 10 if width <= 126 else 11, 1)
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border = palette.border if palette else self._NEUTRAL_BORDER
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stripe = palette.accent if palette else self._NEUTRAL_LINE
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surface = palette.surface if palette else self._NEUTRAL_SURFACE
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return f"""<g>
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<rect x="{x}" y="{y}" width="{width}" height="{height}" rx="7" ry="7" fill="{surface}" stroke="{border}" stroke-width="1.2"/>
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<rect x="{x}" y="{y}" width="3.5" height="{height}" rx="1.75" ry="1.75" fill="{stripe}"/>
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<text x="{x + width / 2:.0f}" y="{y + 24}" text-anchor="middle" fill="{self._TEXT}" font-family="{self._FONT}" font-size="13" font-weight="600">{self._escape(title)}</text>
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{self._text_lines(body_lines, x + width / 2, y + 43, "middle", self._MUTED, 11)}
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</g>"""
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def _diamond(
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self,
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title: str,
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body: str,
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x: int,
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y: int,
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width: int,
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height: int,
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) -> str:
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cx = x + width / 2
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cy = y + height / 2
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points = f"{cx},{y} {x + width},{cy} {cx},{y + height} {x},{cy}"
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body_lines = self._wrap(body, 8, 2)
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return f"""<g>
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<polygon points="{points}" fill="#ffffff" stroke="{self._NEUTRAL_BORDER}" stroke-width="1.25"/>
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<text x="{cx:.0f}" y="{cy - 10:.0f}" text-anchor="middle" fill="{self._TEXT}" font-family="{self._FONT}" font-size="12.5" font-weight="600">{self._escape(title)}</text>
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{self._text_lines(body_lines, cx, cy + 11, "middle", self._MUTED, 10.2)}
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</g>"""
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def _note(
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self,
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body: str,
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x: int,
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y: int,
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width: int,
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height: int,
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) -> str:
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lines = self._wrap(body, 22, 1)
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return f"""<g>
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<rect x="{x}" y="{y}" width="{width}" height="{height}" rx="7" ry="7" fill="#ffffff" stroke="{self._NEUTRAL_BORDER}" stroke-width="1" stroke-dasharray="4,3"/>
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<text x="{x + 12}" y="{y + 22}" fill="{self._MUTED}" font-family="{self._FONT}" font-size="10" font-weight="500">BASIS</text>
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{self._text_lines(lines, x + 54, y + 22, "start", self._TEXT, 10.2)}
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</g>"""
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def _text_lines(
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self,
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lines: list[str],
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x: float,
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y: float,
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anchor: str,
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color: str,
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font_size: float,
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) -> str:
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return "\n ".join(
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f'<text x="{x:.0f}" y="{y + index * (font_size + 5):.0f}" text-anchor="{anchor}" fill="{color}" font-family="{self._FONT}" font-size="{font_size}" font-weight="400">{self._escape(line)}</text>'
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for index, line in enumerate(lines)
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)
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@staticmethod
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def _wrap(value: str, width: int, max_lines: int) -> list[str]:
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text = str(value or "").strip()
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if not text:
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return [""]
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lines = [text[index : index + width] for index in range(0, len(text), width)]
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if len(lines) > max_lines:
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lines = lines[:max_lines]
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lines[-1] = f"{lines[-1][: max(0, width - 1)]}…"
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return lines
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@staticmethod
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def _truncate(value: str, length: int) -> str:
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text = str(value or "").strip()
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return text if len(text) <= length else f"{text[: length - 1]}…"
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@staticmethod
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def _escape(value: str) -> str:
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return html.escape(str(value or ""), quote=True)
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@classmethod
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def _palette(cls, severity: str) -> RiskRuleFlowDiagramPalette:
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return cls._PALETTES.get(str(severity or "").strip().lower(), cls._PALETTES["medium"])
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