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"use client";
import type { RatioPoint, RatiosResponse } from "@/types/api";
import { fmtNumber, fmtPct } from "@/lib/format";
const BRASS = "#C2AA7A";
const GAIN = "#4F8C5E";
type Props = {
data: RatiosResponse;
};
type ValueKind = "multiple" | "percent" | "coverage";
function buildLine(values: (number | null)[], width: number, height: number): string {
const numeric = values.filter((value): value is number => value != null && Number.isFinite(value));
if (numeric.length === 0) return "";
if (numeric.length === 1) {
const y = height / 2;
return `0,${y} ${width},${y}`;
}
const min = Math.min(...numeric);
const max = Math.max(...numeric);
const range = max - min || 1;
return numeric
.map((value, index) => {
const x = (index / (numeric.length - 1)) * width;
const y = max === min ? height / 2 : height - ((value - min) / range) * height;
return `${x.toFixed(1)},${y.toFixed(1)}`;
})
.join(" ");
}
function fmtMultiple(value?: number | null): string {
if (value == null || Number.isNaN(value)) return "—";
return `${fmtNumber(value)}x`;
}
function fmtCoverage(value?: number | null): string {
if (value == null || Number.isNaN(value)) return "—";
return `${fmtNumber(value)}x`;
}
function formatValue(value: number | null, kind: ValueKind): string {
if (kind === "percent") return fmtPct(value);
if (kind === "coverage") return fmtCoverage(value);
return fmtMultiple(value);
}
function MiniSpark({ values, color }: { values: (number | null)[]; color: string }) {
const points = buildLine(values, 88, 24);
if (!points) {
return <span className="psm-ratio-spark-empty">—</span>;
}
return (
<svg className="psm-ratio-mini-spark" viewBox="0 0 88 24" aria-hidden="true">
<polyline
points={points}
fill="none"
stroke={color}
strokeWidth="1.8"
strokeLinecap="round"
strokeLinejoin="round"
/>
</svg>
);
}
function HeroSpark({ values, color }: { values: (number | null)[]; color: string }) {
const points = buildLine(values, 196, 52);
if (!points) {
return <span className="psm-ratio-spark-empty">No trend</span>;
}
return (
<svg className="psm-ratio-hero-spark" viewBox="0 0 196 52" aria-hidden="true">
<polyline
points={points}
fill="none"
stroke={color}
strokeWidth="2"
strokeLinecap="round"
strokeLinejoin="round"
/>
</svg>
);
}
function HeroCard({
label,
point,
kind,
color,
}: {
label: string;
point: RatioPoint;
kind: ValueKind;
color: string;
}) {
return (
<article className="psm-ratio-hero">
<div className="psm-ratio-hero-head">
<span className="psm-ratio-hero-label">{label}</span>
<span className="psm-ratio-hero-sector">
Sector {formatValue(point.vs_sector, kind)}
</span>
</div>
<div className="psm-ratio-hero-value" style={{ color }}>
{formatValue(point.value, kind)}
</div>
<HeroSpark values={point.spark} color={color} />
</article>
);
}
function DetailRow({
label,
point,
kind,
color,
}: {
label: string;
point: RatioPoint;
kind: ValueKind;
color: string;
}) {
return (
<div className="psm-ratio-row">
<span className="psm-ratio-row-label">{label}</span>
<span className="psm-ratio-row-value">{formatValue(point.value, kind)}</span>
<span className="psm-ratio-row-sector">{formatValue(point.vs_sector, kind)}</span>
<MiniSpark values={point.spark} color={color} />
</div>
);
}
function GroupHeader({ label }: { label: string }) {
return (
<div className="psm-ratio-group-label">
<span>{label}</span>
<span>Current</span>
<span>Sector</span>
<span>Trend</span>
</div>
);
}
export function RatiosCard({ data }: Props) {
const showDividends = data.dividend_yield.value != null || data.dividend_payout.value != null;
return (
<section className="psm-card psm-ratio-card">
<div className="psm-card-head">
<div>
<div className="psm-eyebrow">Key Ratios</div>
<h2 className="psm-card-title">Key Ratios</h2>
</div>
</div>
<div className="psm-ratio-heroes">
<HeroCard label="P / E TTM" point={data.pe_ttm} kind="multiple" color={BRASS} />
<HeroCard label="EV / EBITDA" point={data.ev_ebitda} kind="multiple" color={BRASS} />
<HeroCard label="Gross Margin" point={data.gross_margin} kind="percent" color={GAIN} />
<HeroCard label="Net Margin" point={data.net_margin} kind="percent" color={GAIN} />
</div>
<div className="psm-ratio-detail">
<section>
<GroupHeader label="Valuation" />
<DetailRow label="P / Book" point={data.price_to_book} kind="multiple" color={BRASS} />
<DetailRow label="P / Sales" point={data.price_to_sales} kind="multiple" color={BRASS} />
<DetailRow label="EV / Sales" point={data.ev_to_sales} kind="multiple" color={BRASS} />
<DetailRow label="P / FCF" point={data.p_fcf} kind="multiple" color={BRASS} />
<DetailRow label="Forward P / E" point={data.forward_pe} kind="multiple" color={BRASS} />
</section>
<section>
<GroupHeader label="Profitability" />
<DetailRow label="Operating Margin" point={data.operating_margin} kind="percent" color={GAIN} />
<DetailRow label="EBITDA Margin" point={data.ebitda_margin} kind="percent" color={GAIN} />
<DetailRow label="FCF Margin" point={data.fcf_margin} kind="percent" color={GAIN} />
</section>
<section>
<GroupHeader label="Returns" />
<DetailRow label="ROE" point={data.roe} kind="percent" color={GAIN} />
<DetailRow label="ROA" point={data.roa} kind="percent" color={GAIN} />
<DetailRow label="ROIC" point={data.roic} kind="percent" color={GAIN} />
</section>
<section>
<GroupHeader label="Leverage / Liquidity" />
<DetailRow label="Debt / Equity" point={data.debt_to_equity} kind="multiple" color={BRASS} />
<DetailRow label="Current Ratio" point={data.current_ratio} kind="multiple" color={BRASS} />
<DetailRow label="Quick Ratio" point={data.quick_ratio} kind="multiple" color={BRASS} />
<DetailRow label="Interest Coverage" point={data.interest_coverage} kind="coverage" color={BRASS} />
</section>
{showDividends && (
<section>
<GroupHeader label="Dividends" />
<DetailRow label="Dividend Yield" point={data.dividend_yield} kind="percent" color={GAIN} />
<DetailRow label="Payout Ratio" point={data.dividend_payout} kind="percent" color={GAIN} />
</section>
)}
</div>
</section>
);
}
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