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import { useRef } from "react";
import Image from "next/image";
import { Printer, Plus } from "lucide-react";
import { Button } from "@/components/ui/button";
import { useT } from "@/i18n/context";
import type { PredictResponse } from "@/lib/api";
export type FormSnapshot = {
patient_id?: string;
age: number;
sex: "M" | "F";
max_hr: number;
fasting_bs: "0" | "1";
exercise_angina: "Y" | "N";
chest_pain_type: "ASY" | "ATA" | "NAP" | "TA";
st_slope: "Up" | "Flat" | "Down";
resting_bp?: number;
cholesterol?: number;
resting_ecg?: "Normal" | "ST" | "LVH";
oldpeak?: number;
};
export function Ticket({
response,
snapshot,
onNew,
}: {
response: PredictResponse;
snapshot: FormSnapshot;
onNew: () => void;
}) {
const { dict } = useT();
const ticketRef = useRef<HTMLDivElement>(null);
const ts = new Date(response.timestamp);
const date = ts.toLocaleDateString();
const time = ts.toLocaleTimeString();
const isHigh = response.classification === "HIGH";
return (
<div className="mx-auto max-w-2xl space-y-4">
<div className="flex justify-end gap-2 print:hidden">
<Button variant="outline" onClick={onNew}>
<Plus className="h-4 w-4" />
{dict.ticket.newAssessment}
</Button>
<Button onClick={() => window.print()}>
<Printer className="h-4 w-4" />
{dict.common.print}
</Button>
</div>
<div
ref={ticketRef}
className="print-area mx-auto rounded-lg border border-dashed border-foreground/30 bg-card p-8 font-mono text-[13px] leading-relaxed text-foreground shadow-2xl print:shadow-none"
style={{ maxWidth: "420px" }}
>
<div className="flex flex-col items-center gap-2 pb-3 text-center">
<div className="flex h-14 w-14 items-center justify-center overflow-hidden rounded-md">
<Image
src="/logu1.png"
alt="BeatSense"
width={56}
height={56}
className="h-12 w-12 object-contain"
/>
</div>
<div className="text-base font-bold tracking-widest uppercase">
{dict.app.name}
</div>
<div className="text-[10px] uppercase tracking-wider opacity-70">
{dict.ticket.facility}
</div>
</div>
<Divider />
<div className="grid grid-cols-2 gap-y-1 text-[12px]">
<span className="opacity-70">{dict.ticket.code}</span>
<span className="text-right font-bold">{response.patient_id}</span>
<span className="opacity-70">{dict.ticket.date}</span>
<span className="text-right">{date}</span>
<span className="opacity-70">{dict.ticket.time}</span>
<span className="text-right">{time}</span>
<span className="opacity-70">{dict.ticket.clinician}</span>
<span className="text-right">{dict.header.user}</span>
</div>
<Divider />
<div className="text-[10px] uppercase tracking-widest opacity-70">
{dict.ticket.vitals}
</div>
<div className="mt-2 space-y-0.5 text-[12px]">
<Row label={dict.form.fields.age} value={`${snapshot.age}`} />
<Row
label={dict.form.fields.sex}
value={snapshot.sex === "M" ? dict.common.male : dict.common.female}
/>
{snapshot.resting_bp ? (
<Row
label={dict.form.fields.restingBp}
value={`${snapshot.resting_bp} mmHg`}
/>
) : null}
{snapshot.cholesterol ? (
<Row
label={dict.form.fields.cholesterol}
value={`${snapshot.cholesterol} mg/dL`}
/>
) : null}
<Row
label={dict.form.fields.maxHr}
value={`${snapshot.max_hr} bpm`}
/>
<Row
label={dict.form.fields.fastingBs}
value={snapshot.fasting_bs === "1" ? dict.common.yes : dict.common.no}
/>
<Row
label={dict.form.fields.chestPainType}
value={snapshot.chest_pain_type}
/>
<Row
label={dict.form.fields.exerciseAngina}
value={
snapshot.exercise_angina === "Y" ? dict.common.yes : dict.common.no
}
/>
<Row label={dict.form.fields.stSlope} value={snapshot.st_slope} />
</div>
<Divider />
<div className="text-center">
<div className="text-[10px] uppercase tracking-widest opacity-70">
{dict.ticket.result}
</div>
<div className="mt-2 text-4xl font-black">
{response.probability.toFixed(1)}%
</div>
<div className="mt-1 text-[10px] uppercase opacity-60">
{dict.ticket.riskScore} · {dict.ticket.threshold}: {response.threshold}%
</div>
<div
className={`mt-3 inline-block rounded-sm border-2 px-3 py-1 text-sm font-bold tracking-widest ${
isHigh
? "border-destructive text-destructive"
: "border-success text-success"
}`}
>
{isHigh ? dict.ticket.highRisk : dict.ticket.lowRisk}
</div>
<ProbabilityBar value={response.probability} threshold={response.threshold} />
</div>
<Divider />
<div className="text-[10px] uppercase tracking-widest opacity-70">
{dict.ticket.recommendation}
</div>
<p className="mt-1 text-[12px]">
{isHigh ? dict.ticket.recHigh : dict.ticket.recLow}
</p>
<Divider />
<div className="mt-2 flex flex-col items-center gap-2 text-[10px] opacity-70">
<Barcode value={response.patient_id} />
<div className="text-center">{dict.ticket.footer}</div>
</div>
</div>
</div>
);
}
function Row({ label, value }: { label: string; value: string }) {
return (
<div className="flex justify-between gap-2">
<span className="opacity-70">{label}</span>
<span className="text-right font-medium">{value}</span>
</div>
);
}
function Divider() {
return (
<div
className="my-3 h-px w-full"
style={{
background:
"repeating-linear-gradient(90deg, currentColor 0 4px, transparent 4px 8px)",
opacity: 0.4,
}}
/>
);
}
function ProbabilityBar({
value,
threshold,
}: {
value: number;
threshold: number;
}) {
return (
<div className="mt-3">
<div className="relative h-2 w-full overflow-hidden rounded-sm border border-foreground/30">
<div
className="h-full"
style={{
width: `${Math.min(100, value)}%`,
background: value >= threshold ? "var(--destructive)" : "var(--success)",
}}
/>
<div
className="absolute top-0 h-full w-px bg-foreground/80"
style={{ left: `${threshold}%` }}
/>
</div>
<div className="mt-1 flex justify-between font-mono text-[9px] opacity-60">
<span>0%</span>
<span>{threshold}%</span>
<span>100%</span>
</div>
</div>
);
}
function Barcode({ value }: { value: string }) {
const bars = Array.from(value).flatMap((c, i) => {
const code = c.charCodeAt(0) + i;
return [
{ w: (code % 4) + 1, gap: 1 },
{ w: ((code >> 2) % 3) + 1, gap: 2 },
];
});
return (
<div className="flex flex-col items-center">
<div className="flex h-10 items-end gap-[1px]">
{bars.map((b, i) => (
<div
key={i}
className="bg-foreground"
style={{ width: `${b.w}px`, height: "100%" }}
/>
))}
</div>
<div className="mt-1 font-mono text-[10px] tracking-widest">{value}</div>
</div>
);
}
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