/**
* Lab panel — comprehensive metabolic + complete blood count, with each
* value placed on a reference-range ribbon.
*
* Refactored 2026-05-03 per the dot+line system change in DECISIONS.md
* (the dots-as-background retrospective). The ribbon used to render the
* normal envelope as a Bridson density stripe; Vinson reviewed and reported
* it made the test results hard to read. Now:
*
* - The reference range is a *line*: a faint full-track hairline + a
* bolder line segment between the bracket ticks at refLo and refHi. The
* eye reads the normal zone as a length, not as a texture.
* - The patient's value is one dot — Federal Blue when in-range (with a
* small halo of mark-dots — those are punctuation around the value, not
* background), persimmon when out-of-range. Off-scale values cap with
* an edge arrow.
* - Out-of-range gets a one-letter margin marker (H / L / HH / LL),
* *not* a coloured row background. Interior of the table cells stays
* flat per CLAUDE.md.
*
* Pure server component. Realistic reference ranges; mock values, no PHI.
*/
type Severity = "normal" | "low" | "high" | "panic-low" | "panic-high";
type Lab = {
name: string;
short?: string; // shortened display when name is long
value: number | null; // null = pending
unit: string;
refLo: number;
refHi: number;
/** Visual viewport — defaults to `[refLo - span, refHi + span]`. */
view?: [number, number];
/** Delta vs prior value (positive = increased). */
delta?: number;
/** Time the result returned (display only). */
resultedAt?: string;
};
type Panel = {
name: string;
collected: string;
resulted: string;
rows: Lab[];
};
const PANELS: Panel[] = [
{
name: "Comprehensive Metabolic Panel",
collected: "06:50",
resulted: "09:55",
rows: [
{ name: "Sodium", short: "Na", value: 138, unit: "mEq/L", refLo: 135, refHi: 145, delta: -1 },
{ name: "Potassium", short: "K", value: 3.3, unit: "mEq/L", refLo: 3.5, refHi: 5.0, delta: -0.4 },
{ name: "Chloride", short: "Cl", value: 102, unit: "mEq/L", refLo: 98, refHi: 107 },
{ name: "CO₂", value: 24, unit: "mEq/L", refLo: 22, refHi: 28 },
{ name: "BUN", value: 18, unit: "mg/dL", refLo: 7, refHi: 20, delta: 2 },
{ name: "Creatinine", short: "Cr", value: 1.05, unit: "mg/dL", refLo: 0.7, refHi: 1.3 },
{ name: "Glucose", value: 168, unit: "mg/dL", refLo: 70, refHi: 99, delta: 22, view: [50, 200] },
{ name: "Calcium", short: "Ca", value: 9.4, unit: "mg/dL", refLo: 8.5, refHi: 10.5 },
],
},
{
name: "Complete Blood Count",
collected: "06:50",
resulted: "08:42",
rows: [
{ name: "WBC", value: 12.6, unit: "k/µL", refLo: 4.5, refHi: 11, delta: 3.1, view: [3, 18] },
{ name: "Hgb", value: 13.2, unit: "g/dL", refLo: 12, refHi: 16 },
{ name: "Hct", value: 39, unit: "%", refLo: 36, refHi: 46 },
{ name: "Platelets", short: "Plt", value: 245, unit: "k/µL", refLo: 150, refHi: 450 },
{ name: "Lactate", value: null, unit: "mmol/L", refLo: 0.5, refHi: 2.2 },
],
},
];
function severityOf(v: number, lo: number, hi: number): Severity {
const span = hi - lo;
if (v < lo - span * 0.5) return "panic-low";
if (v > hi + span * 0.5) return "panic-high";
if (v < lo) return "low";
if (v > hi) return "high";
return "normal";
}
const SEV_LABEL: Record<Severity, string> = {
normal: "",
low: "L",
high: "H",
"panic-low": "LL",
"panic-high": "HH",
};
export default function LabResults() {
const flagged = PANELS.flatMap((p) => p.rows).filter(
(r) => r.value != null && severityOf(r.value, r.refLo, r.refHi) !== "normal",
).length;
return (
<div className="grid h-full w-full bg-[var(--color-bg)] text-[var(--color-text)]">
<div className="flex h-full flex-col">
{/* Header */}
<div className="border-b border-[var(--color-border)] bg-[var(--color-surface-2)] px-6 py-3">
<div className="font-mono text-[10px] uppercase tracking-[0.22em] text-[var(--color-text-muted)]">
Lab results · Patel, R. · 04 May
</div>
<p
className="mt-1 font-display text-[18px] italic leading-tight text-[var(--color-text)]"
style={{ fontVariationSettings: '"opsz" 24, "SOFT" 30' }}
>
{flagged} flagged result{flagged === 1 ? "" : "s"}.
</p>
</div>
{/* Panels */}
<div className="min-h-0 flex-1 overflow-y-auto">
{PANELS.map((panel, i) => (
<PanelBlock key={panel.name} panel={panel} dividerTop={i > 0} />
))}
</div>
<p
className="border-t border-[var(--color-border)] px-6 py-2 text-center text-[11px] italic leading-relaxed text-[var(--color-text-muted)]"
style={{
fontFamily: "var(--font-display)",
fontVariationSettings: '"opsz" 18, "SOFT" 30',
}}
>
Each row's ribbon is the lab's reference range as a line — bolder
inside the normal envelope, hairline outside. The marker is the
patient's value: Federal Blue inside, persimmon outside. Margin
letters carry the analytical readout.
</p>
</div>
</div>
);
}
function PanelBlock({
panel,
dividerTop,
}: {
panel: Panel;
dividerTop: boolean;
}) {
return (
<section className={dividerTop ? "border-t border-[var(--color-border)]" : ""}>
<header className="flex items-baseline justify-between gap-3 px-6 pb-1.5 pt-4">
<h3 className="text-[13px] font-medium tracking-[-0.01em] text-[var(--color-text)]">
{panel.name}
</h3>
<span className="font-mono text-[10px] uppercase tracking-[0.18em] text-[var(--color-text-muted)]">
drawn {panel.collected} · resulted {panel.resulted}
</span>
</header>
<ul>
{panel.rows.map((r) => (
<LabRow key={r.name} lab={r} />
))}
</ul>
</section>
);
}
function LabRow({ lab }: { lab: Lab }) {
if (lab.value == null) {
return (
<li className="grid grid-cols-[110px_72px_28px_1fr_60px] items-center gap-3 px-6 py-2 text-[12.5px] text-[var(--color-text-muted)]">
<span>{lab.name}</span>
<span className="font-mono italic">pending</span>
<span />
<span className="h-3" />
<span className="text-right font-mono text-[10px] uppercase tracking-[0.16em]">
{lab.refLo}–{lab.refHi} {lab.unit}
</span>
</li>
);
}
const sev = severityOf(lab.value, lab.refLo, lab.refHi);
const flagInk =
sev === "panic-high" || sev === "panic-low"
? "var(--color-danger)"
: sev !== "normal"
? "var(--color-warning)"
: "var(--color-text-muted)";
return (
<li className="grid grid-cols-[110px_72px_28px_1fr_60px] items-center gap-3 border-t border-[var(--color-border)] px-6 py-2 text-[12.5px] hover:bg-[var(--color-surface)]">
{/* Name */}
<span className="text-[var(--color-text)]">
{lab.name}
{lab.short && (
<span className="ml-1.5 font-mono text-[10px] uppercase tracking-[0.14em] text-[var(--color-text-muted)]">
{lab.short}
</span>
)}
</span>
{/* Value + delta */}
<span className="flex items-baseline gap-1">
<span
className="font-mono text-[16px] tabular-nums"
style={{
color: sev === "normal" ? "var(--color-text)" : "var(--color-accent)",
fontVariationSettings: '"wght" 500',
}}
>
{formatValue(lab.value)}
</span>
{lab.delta != null && Math.abs(lab.delta) >= 0.05 && (
<span className="font-mono text-[9px] tracking-tight text-[var(--color-text-muted)]">
{lab.delta > 0 ? "▲" : "▼"}
{Math.abs(lab.delta).toFixed(Math.abs(lab.delta) < 1 ? 1 : 0)}
</span>
)}
</span>
{/* Margin flag — H/L/HH/LL or blank. Mono caps, never a colour-only signal. */}
<span
className="text-center font-mono text-[10px] font-medium uppercase tracking-[0.18em]"
style={{ color: flagInk }}
>
{SEV_LABEL[sev]}
</span>
{/* Reference-range ribbon. */}
<RangeRibbon lab={lab} severity={sev} />
{/* Unit and range — mono caps, right-aligned. */}
<span className="text-right font-mono text-[10px] uppercase tracking-[0.16em] text-[var(--color-text-muted)]">
{lab.refLo}–{lab.refHi} {lab.unit}
</span>
</li>
);
}
function formatValue(v: number) {
// Show one decimal for values < 10, integer otherwise (medical convention
// for most chemistries; not exact for all assays but close enough for a
// showcase plate).
if (Math.abs(v) < 10) return v.toFixed(1);
return Math.round(v).toString();
}
const RIBBON_W = 140;
const RIBBON_H = 14;
function RangeRibbon({
lab,
severity,
}: {
lab: Lab;
severity: Severity;
}) {
const value = lab.value!;
const view: [number, number] =
lab.view ?? (() => {
const span = lab.refHi - lab.refLo;
return [lab.refLo - span * 0.6, lab.refHi + span * 0.6];
})();
const [vMin, vMax] = view;
const xOf = (v: number) =>
((Math.max(vMin, Math.min(vMax, v)) - vMin) / (vMax - vMin)) * RIBBON_W;
const offScale = value < vMin || value > vMax;
const xRefLo = xOf(lab.refLo);
const xRefHi = xOf(lab.refHi);
const valueX = xOf(value);
const inRange = severity === "normal";
const yMid = RIBBON_H / 2;
return (
<svg
width={RIBBON_W}
height={RIBBON_H}
viewBox={`0 0 ${RIBBON_W} ${RIBBON_H}`}
className="block"
role="img"
aria-label={`Reference range ${lab.refLo}–${lab.refHi} ${lab.unit}; value ${value}`}
>
{/* Faint full-track hairline. */}
<line
x1={1}
x2={RIBBON_W - 1}
y1={yMid}
y2={yMid}
stroke="var(--color-border)"
strokeWidth="0.4"
/>
{/* Normal envelope as a bolder line segment between the bracket ticks.
This replaced a Bridson density stripe (DECISIONS.md 2026-05-03). */}
<line
x1={xRefLo}
x2={xRefHi}
y1={yMid}
y2={yMid}
stroke="var(--color-text-muted)"
strokeWidth="1.3"
strokeLinecap="round"
/>
{/* Bracket ticks at the band edges. */}
<line
x1={xRefLo}
x2={xRefLo}
y1={3}
y2={RIBBON_H - 3}
stroke="var(--color-border-strong)"
strokeWidth="0.6"
/>
<line
x1={xRefHi}
x2={xRefHi}
y1={3}
y2={RIBBON_H - 3}
stroke="var(--color-border-strong)"
strokeWidth="0.6"
/>
{/* Value marker. Off-scale values render as a chevron at the strip edge. */}
{offScale ? (
<ValueChevron
x={value < vMin ? 0 : RIBBON_W}
y={yMid}
dir={value < vMin ? "left" : "right"}
/>
) : (
<ValueDot x={valueX} y={yMid} inRange={inRange} />
)}
</svg>
);
}
function ValueDot({
x,
y,
inRange,
}: {
x: number;
y: number;
inRange: boolean;
}) {
const ink = inRange ? "var(--color-accent-2)" : "var(--color-accent)";
return (
<g transform={`translate(${x} ${y})`}>
<circle r={2.6} fill={ink} />
{/* Halo — visible only when in-range; signals "the live read" the same
way the vitals sparkline marks the most-recent sample. */}
{inRange &&
Array.from({ length: 8 }).map((_, i) => {
const a = (i / 8) * Math.PI * 2;
return (
<circle
key={i}
cx={Math.cos(a) * 4.2}
cy={Math.sin(a) * 4.2}
r={0.45}
fill={ink}
/>
);
})}
</g>
);
}
function ValueChevron({
x,
y,
dir,
}: {
x: number;
y: number;
dir: "left" | "right";
}) {
const path =
dir === "right"
? `M ${x - 6} ${y - 3.5} L ${x} ${y} L ${x - 6} ${y + 3.5} Z`
: `M ${x + 6} ${y - 3.5} L ${x} ${y} L ${x + 6} ${y + 3.5} Z`;
return <path d={path} fill="var(--color-accent)" />;
}