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ca6c0e5 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 | import { useMemo, useState } from "react";
import { seqColor } from "@/lib/colors";
export default function PatchMatrix({
matrix = [],
layers = [3, 7, 10],
n_steps = 0,
layer,
setLayer,
onCellClick,
selectedCell,
}) {
const view = useMemo(() => {
const out = matrix.filter((m) => m.patch_layer === layer);
const max = out.reduce((a, b) => Math.max(a, b.kl), 0) || 1;
return { rows: out, max };
}, [matrix, layer]);
const cellSize = 36;
const padL = 28;
const padT = 22;
const w = padL + n_steps * (cellSize + 2);
const h = padT + n_steps * (cellSize + 2);
const [hover, setHover] = useState(null);
function cellAt(src, tgt) {
return view.rows.find(
(r) => r.source_step === src && r.target_step === tgt,
);
}
return (
<div data-testid="cross-step-patch-matrix">
<div className="mb-2 flex items-center gap-2">
<span className="font-mono text-[10px] uppercase tracking-wider text-[color:var(--ns-fg-muted)]">
layer
</span>
<div className="flex overflow-hidden rounded-md border" style={{ borderColor: "var(--ns-border)" }}>
{layers.map((L) => (
<button
key={L}
type="button"
onClick={() => setLayer(L)}
data-testid={`patch-layer-${L}`}
className="px-2 py-0.5 font-mono text-[11px]"
style={{
background:
layer === L
? "var(--ns-accent)"
: "var(--ns-bg-surface-2)",
color:
layer === L
? "var(--ns-bg-canvas)"
: "var(--ns-fg-secondary)",
}}
>
L{L}
</button>
))}
</div>
<span className="ml-auto font-mono text-[10px] text-[color:var(--ns-fg-muted)]">
max KL {view.max.toFixed(3)}
</span>
</div>
<div className="relative">
<svg width={w} height={h} className="block">
{Array.from({ length: n_steps }).map((_, i) => (
<text
key={`th${i}`}
x={padL + i * (cellSize + 2) + cellSize / 2}
y={14}
textAnchor="middle"
className="font-mono"
fontSize={10}
fill="var(--ns-fg-muted)"
>
t{i + 1}
</text>
))}
{Array.from({ length: n_steps }).map((_, i) => (
<text
key={`sh${i}`}
x={padL - 4}
y={padT + i * (cellSize + 2) + cellSize / 2 + 3}
textAnchor="end"
className="font-mono"
fontSize={10}
fill="var(--ns-fg-muted)"
>
s{i + 1}
</text>
))}
{Array.from({ length: n_steps }).map((_, srcIdx) =>
Array.from({ length: n_steps }).map((_, tgtIdx) => {
const src = srcIdx + 1;
const tgt = tgtIdx + 1;
const cell = cellAt(src, tgt);
const isDiag = src === tgt;
const v = cell?.kl ?? 0;
const t = view.max > 0 ? v / view.max : 0;
const isSel =
selectedCell &&
selectedCell.source === src &&
selectedCell.target === tgt &&
selectedCell.layer === layer;
return (
<rect
key={`${src}-${tgt}`}
x={padL + (tgt - 1) * (cellSize + 2)}
y={padT + (src - 1) * (cellSize + 2)}
width={cellSize}
height={cellSize}
rx={3}
fill={
isDiag
? "var(--ns-bg-surface-1)"
: seqColor(t)
}
stroke={
isSel
? "var(--ns-focus)"
: "var(--ns-border-subtle)"
}
strokeWidth={isSel ? 2 : 0.5}
onMouseEnter={() =>
setHover({ src, tgt, v, sig: cell?.significant })
}
onMouseLeave={() => setHover(null)}
onClick={() =>
!isDiag &&
cell &&
onCellClick &&
onCellClick({ source: src, target: tgt, layer })
}
style={{ cursor: isDiag ? "default" : "pointer" }}
data-testid={`cross-step-patch-matrix-cell-${src}-${tgt}`}
/>
);
}),
)}
</svg>
{hover && !Number.isNaN(hover.v) && (
<div className="ns-d3-tooltip" style={{ left: padL + hover.tgt * (cellSize + 2) + 6, top: padT + (hover.src - 1) * (cellSize + 2) }}>
src=s{hover.src} → tgt=s{hover.tgt}
<br />
KL = {hover.v?.toFixed(4) ?? "—"}
{hover.sig ? " · sig" : ""}
</div>
)}
</div>
<div className="mt-2 font-mono text-[10px] text-[color:var(--ns-fg-muted)]">
row = source step, col = target step · patch resid_post @ L{layer}
</div>
</div>
);
}
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