Press n or j to go to the next uncovered block, b, p or k for the previous block.
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import { useSearchParams } from "react-router-dom";
type UnitOpCircleProps = {
stream: any;
midX: number;
colour: string;
text: string;
henNode: HenNodeRead;
onShowHover?: any;
onHideHover?: any;
hoverBuilders?: any;
hxKey?: string | undefined;
selected?: boolean;
lookup?: {
sdeById: Map<number, any>;
segmentsBySdeId: Map<number, any[]>;
};
};
// helper used when hxKey isnt present
function normaliseHxGroup(label: string) {
// "E-101A" | "E101A" -> "E-101" | "E101"
const m = String(label).match(/^E-?\d+/i);
return m?.[0] ?? String(label);
}
const num = (v: any, d = 0) => {
const n = Number(v);
return Number.isFinite(n) ? n : d;
};
const lmtd = (dT1: number, dT2: number) => {
const a = num(dT1),
b = num(dT2);
Iif (a <= 0 && b <= 0) return 0;
Iif (Math.abs(a - b) < 1e-9) return a;
return (a - b) / Math.log(a / b);
};
const segField = (seg: SegmentRead, keys: string[], d = 0) =>
num(
keys.reduce((acc, k) => acc ?? seg?.[k], undefined),
d
);
const computeSegmentQkW = (seg: SegmentRead, hotSde?: any, coldSde?: any) => {
const U = segField(seg, ["overall_htc", "U", "htc"]); // W/m²·K
const A = segField(seg, ["area"]); // m²
const Th_in = segField(
seg,
["hot_in", "t_hot_in", "Th_in"],
hotSde?.temperatures?.inlet
);
const Th_out = segField(
seg,
["hot_out", "t_hot_out", "Th_out"],
hotSde?.temperatures?.outlet
);
const Tc_in = segField(
seg,
["cold_in", "t_cold_in", "Tc_in"],
coldSde?.temperatures?.inlet
);
const Tc_out = segField(
seg,
["cold_out", "t_cold_out", "Tc_out"],
coldSde?.temperatures?.outlet
);
const dT1 = Math.abs(Th_in - Tc_out);
const dT2 = Math.abs(Th_out - Tc_in);
const dTlm = lmtd(dT1, dT2);
return (U * A * dTlm) / 1000; // kW
};
const delta = (a?: number, b?: number) =>
Number.isFinite(Number(a)) && Number.isFinite(Number(b))
? Math.abs(Number(a) - Number(b))
: undefined;
export default function UnitOpCircle({
stream,
midX,
colour,
text,
henNode,
onShowHover,
onHideHover,
hoverBuilders,
hxKey,
selected = false,
lookup,
}: UnitOpCircleProps) {
const [, setSearchParams] = useSearchParams();
const isHX = /^E/i.test(String(text));
function handleClick(event: React.MouseEvent) {
event.stopPropagation();
setSearchParams((prev) => {
const p = new URLSearchParams(prev);
p.delete("henStream");
p.set("henNode", String(henNode?.id ?? ""));
if (isHX) {
p.set("selType", "HX");
const group = hxKey ?? normaliseHxGroup(text);
p.set("hxGroup", group);
} else {
p.set("selType", "UNIT");
p.delete("hxGroup");
}
return p;
});
}
// Build HX hover payload (hot/cold) if this node is an exchanger
let hxHoverContent: any = null;
if (isHX && lookup) {
const hotId = Number(henNode?.hot_connection);
const coldId = Number(henNode?.cold_connection);
const hotSde = lookup.sdeById.get(hotId);
const coldSde = lookup.sdeById.get(coldId);
const hotSegments = lookup.segmentsBySdeId.get(hotId) ?? [];
const coldSegments = lookup.segmentsBySdeId.get(coldId) ?? [];
// Areas
const hotArea = hotSegments.reduce((s, seg) => s + num(seg?.area), 0);
const coldArea = coldSegments.reduce((s, seg) => s + num(seg?.area), 0);
const totalArea = hotArea + coldArea || undefined;
// Heat transfer (kW)
const Qhot = hotSegments.reduce(
(s, seg) => s + computeSegmentQkW(seg, hotSde, coldSde),
0
);
const Qcold = coldSegments.reduce(
(s, seg) => s + computeSegmentQkW(seg, hotSde, coldSde),
0
);
const Qavg = Qhot && Qcold ? (Qhot + Qcold) / 2 : Qhot || Qcold || 0;
hxHoverContent = hoverBuilders?.hxNode?.({
title: text,
hot: {
before: hotSde?.temperatures?.inlet,
after: hotSde?.temperatures?.outlet,
},
cold: {
before: coldSde?.temperatures?.inlet,
after: coldSde?.temperatures?.outlet,
},
overall: {
transfer: Qavg,
area: totalArea,
},
});
}
return (
<>
<circle
cx={midX}
cy="0"
r="15"
fill={`${selected ? "#2563ebbf" : colour}`}
stroke="hsl(var(--hen-diagram-foreground))"
className={`${selected ? "stroke-blue-600 stroke-[3] drop-shadow-[0_0_2px_rgba(37,99,235,0.9)] cursor-pointer" : "stroke-[1] cursor-pointer"}`}
onClick={handleClick}
aria-label={`hen-node-${text}`}
onMouseEnter={(e) => {
e.stopPropagation();
if (isHX && hxHoverContent) {
onShowHover?.(e, hxHoverContent, { width: 300 });
} else {
// Non-HX: use SDE just like the sidebar
const sdeId = Number(henNode?.stream_data_entry);
const sde = lookup?.sdeById?.get(sdeId);
const inlet = sde?.temperatures?.inlet;
const outlet = sde?.temperatures?.outlet;
// const dT = delta(inlet, outlet);
const duty = sde?.heat_flow;
console.log("sde", sde)
console.log("duty", duty)
const unitopType = sde?.unitop_type
console.log("unitopType", unitopType)
onShowHover?.(
e,
hoverBuilders?.nonHxNode?.({
label: text,
kind: unitopType,
temps: { inlet, outlet },
duty: Number(duty),
}) ??
hoverBuilders?.node?.(
text,
henNode?.type ?? "Unit operation",
`ID ${henNode?.id}, SDE ${sdeId}`
), // safety
{ width: 300 }
);
}
}}
onMouseLeave={(e) => {
e.stopPropagation();
onHideHover?.(e);
}}
/>
<text
x={midX}
y="3.5"
textAnchor="middle"
fill="hsl(var(--hen-diagram-foreground))"
className={`${selected ? "text-xs font-bold pointer-events-none" : "text-xs font-bold pointer-events-none"}`}
>
{text}
</text>
</>
);
}
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