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// lib/severity.ts
export type SeverityRank = 0 | 1 | 2; // 0=low, 1=medium, 2=high
export const SEVERITY_COLORS: Record<SeverityRank, string> = {
0: "#7BC96F", // low (soft green)
1: "#F1E05A", // med (pale yellow)
2: "#EF6A5B", // high (light red)
};
// NEW: simple natural-disaster detector (keywords are easy to tune)
const NATURAL_KEYS = [
"wildfire",
"fire",
"flood",
"hurricane",
"tornado",
"earthquake",
"quake",
"storm",
"cyclone",
"typhoon",
"tsunami",
"volcano",
"eruption",
"landslide",
"mudslide",
"avalanche",
"blizzard",
"snow",
"hail",
"heat",
"drought",
"smoke",
"dust",
"wind",
"ice",
"freezing",
"lightning",
];
export function isNaturalCategory(category?: string | null): boolean {
const c = (category || "").toLowerCase();
return NATURAL_KEYS.some((k) => c.includes(k));
}
// Normalize any severity -> rank (with NATURAL override to High)
export function toSeverityRank(
severity: unknown,
category?: string | null
): SeverityRank | null {
// Natural disasters => always High (red), regardless of LLM severity
if (isNaturalCategory(category)) return 2;
if (severity != null) {
const s = String(severity).toLowerCase().trim();
if (s === "high" || s === "severe" || s === "critical") return 2;
if (s === "medium" || s === "moderate") return 1;
if (s === "low" || s === "minor") return 0;
const n = Number(s);
if (Number.isFinite(n)) {
if (n >= 4) return 2;
if (n >= 2) return 1;
return 0;
}
}
// Fallback by category (non-natural)
const c = (category || "").toLowerCase();
if (
c.includes("gun") ||
c.includes("robbery") ||
c.includes("assault") ||
c.includes("shoot")
)
return 2;
if (
c.includes("accident") ||
c.includes("medical") ||
c.includes("missing") ||
c.includes("theft")
)
return 1;
if (
c.includes("road") ||
c.includes("construction") ||
c.includes("blocked") ||
c.includes("lost") ||
c.includes("bag")
)
return 0;
return null;
}
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