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//
// Frame Studio's Print track has shown its packed bed as an inline SVG for a
// while (`PrintTrack.tsx`): a viewBox in MILLIMETRES, so the drawing is the bed
// at 1:1 and no scale factor is ever computed; parts as their packed footprint
// rects; the purge tower as a dashed reserve. This is that, for a kit.
//
// TWO DELIBERATE DIVERGENCES FROM EINK.
//
// 1. It DRAWS THE KEEP-OUT. eink's packer honours `bed.exclude` but its preview
// never draws it, so parts just mysteriously avoid a corner. For us that
// corner is the whole story: the X1C's 18 × 28 mm filament-cutter zone is
// what made the first live kit submit die at the slicer with exit 192, and
// `clearOfKeepOuts` now slides the entire layout — modules and tower
// together — to clear it. A preview that hid the thing we slide against
// would hide the interesting part.
//
// 2. It is READ-ONLY. eink's is editable because a frame job spans several
// plates and the user owns MEMBERSHIP (which plate a part is on) while the
// packer owns positions. Phase A ships one plate or an honest refusal, so
// there is no membership to edit and nothing here to drag. When Phase B
// (#33) adds plates, eink's tap-tap-plus-drag model is the one to copy.
//
// Colour follows eink's rule and carries NO identity: every module is the same
// fill whatever its kind, because a legend keyed on hue is a legend some readers
// can't use. Which module a rectangle is lives in its label and its <title>.
//
// Presentational and hook-free of data — the layout arrives as a prop, so every
// state (fits, refuses, still rendering) is reproducible in Storybook without a
// paired printer or a WASM export.
import { useId } from 'react'
import { notice, STUDIO } from '@/components/studio/theme'
import type { KitPlateLayout, KitPlatePlacement } from './abacus-kit-plate'
export interface KitPlatePreviewProps {
/** The packed plate. Null while it's being computed, or when it was refused. */
layout: KitPlateLayout | null
/** Why there is no plate, straight off `KitPlateFitError`. Rendered instead of
* the bed: a refusal is not an empty bed, and drawing one as the other is how
* a user ends up waiting for a print that was never going to happen. */
refusal?: { headline: string; remediation: string; modules: readonly string[] } | null
/** The layout is being (re)computed — the export it needs takes a moment. */
pending?: boolean
/** Printer name for the caption. Falls back to the bed's size. */
printerName?: string
/** How many filaments this plate resolves to, for the caption. */
filaments?: number
}
// The drawing's ink, all of it from the studio palette: the bed is a surface
// (an opaque page ground read DARKER than the rail behind it), a module is the
// ONE accent, the keep-out is the danger bar.
const BED_FILL = STUDIO.color.surface
const BED_STROKE = STUDIO.color.borderStrong
const MODULE_FILL = STUDIO.color.accentFill
const MODULE_STROKE = STUDIO.color.accent
const MODULE_TEXT = STUDIO.color.text
const TOWER_STROKE = STUDIO.color.muted
const KEEPOUT_STROKE = STUDIO.color.tone.danger.bar
/**
* Font size for a label inside a `w × h` mm rect, or 0 to draw no label.
*
* eink's formula (`Math.min(11, h * 0.55, (w * 1.5) / label.length)`, hidden
* under 5) with one addition: a kit's modules are tall narrow strips — 15.5 mm
* wide by 100 mm deep is typical — so measuring the text against the rect's
* WIDTH would hide every label on the plate. The long side is whichever it is,
* and the caller turns the text to match.
*/
export function labelFit(wMm: number, hMm: number, label: string): number {
const along = Math.max(wMm, hMm)
const across = Math.min(wMm, hMm)
const size = Math.min(11, across * 0.55, (along * 1.5) / Math.max(label.length, 1))
return size >= 5 ? size : 0
}
/** One packed module. */
function ModuleRect({ at, dMm }: { at: KitPlatePlacement; dMm: number }) {
// 3MF +Y runs to the BACK of the bed; SVG y grows downward. Every rect drawn
// here flips through the bed's depth, so the picture matches what the operator
// sees standing in front of the printer.
const y = dMm - at.yMm - at.hMm
const size = labelFit(at.wMm, at.hMm, at.label)
const upright = at.wMm >= at.hMm
const cx = at.xMm + at.wMm / 2
const cy = y + at.hMm / 2
return (
<g data-element="kit-plate-module" data-module-kind={at.kind} data-rotated={at.rotated}>
<title>{`${at.label} — ${at.wMm.toFixed(1)} × ${at.hMm.toFixed(1)} mm${
at.rotated ? ', turned 90°' : ''
}`}</title>
<rect
x={at.xMm}
y={y}
width={at.wMm}
height={at.hMm}
rx={1.5}
fill={MODULE_FILL}
stroke={MODULE_STROKE}
strokeWidth={0.6}
/>
{size > 0 && (
<text
x={cx}
y={cy}
fontSize={size}
fill={MODULE_TEXT}
textAnchor="middle"
dominantBaseline="central"
transform={upright ? undefined : `rotate(-90 ${cx} ${cy})`}
style={{ pointerEvents: 'none', userSelect: 'none' }}
>
{at.label}
</text>
)}
</g>
)
}
export function KitPlatePreview({
layout,
refusal = null,
pending = false,
printerName,
filaments,
}: KitPlatePreviewProps) {
const hatchId = useId()
if (refusal) {
return (
<div
data-component="kit-plate-preview"
data-state="refused"
// status, not alert: the refusal recomputes with the design's params
role="status"
style={notice('danger')}
>
<div style={{ ...STUDIO.type.strong, color: 'inherit' }}>{refusal.headline}</div>
<div style={{ ...STUDIO.type.note, color: 'inherit', opacity: 0.85, marginTop: 3 }}>
{refusal.remediation}
</div>
{refusal.modules.length > 0 && (
<div style={{ ...STUDIO.type.note, color: 'inherit', opacity: 0.7, marginTop: 4 }}>
{refusal.modules.join(', ')}
</div>
)}
</div>
)
}
if (!layout) {
return (
<div
data-component="kit-plate-preview"
data-state={pending ? 'pending' : 'idle'}
style={{
...STUDIO.type.note,
padding: '10px 12px',
borderRadius: STUDIO.radius.button,
border: `1px dashed ${STUDIO.color.border}`,
}}
>
{pending ? 'Laying the kit out on the bed…' : 'No plate to show yet.'}
</div>
)
}
const { bed, tower, placements } = layout
const towerY = bed.dMm - tower.yMm - tower.dMm
const caption = [
printerName ?? `${Math.round(bed.wMm)} × ${Math.round(bed.dMm)} mm bed`,
`${placements.length} module${placements.length === 1 ? '' : 's'}`,
filaments ? `${filaments} filament${filaments === 1 ? '' : 's'}` : null,
]
.filter(Boolean)
.join(' · ')
return (
<div data-component="kit-plate-preview" data-state="packed">
<svg
viewBox={`0 0 ${bed.wMm} ${bed.dMm}`}
role="img"
aria-label={`Build plate layout: ${caption}`}
style={{
width: '100%',
height: 'auto',
display: 'block',
border: `1px solid ${STUDIO.color.border}`,
borderRadius: STUDIO.radius.button,
}}
>
<defs>
{/* Diagonal hatch for the printer's keep-out. Pattern units are the
same millimetres as everything else, so the hatch reads at the same
density whatever size the SVG is displayed at. */}
<pattern
id={hatchId}
width={4}
height={4}
patternUnits="userSpaceOnUse"
patternTransform="rotate(45)"
>
<line x1={0} y1={0} x2={0} y2={4} stroke={KEEPOUT_STROKE} strokeWidth={1} />
</pattern>
</defs>
<rect
x={0}
y={0}
width={bed.wMm}
height={bed.dMm}
rx={3}
fill={BED_FILL}
stroke={BED_STROKE}
strokeWidth={0.8}
/>
{(bed.exclude ?? []).map((zone) => (
<g
key={`keepout-${zone.xMm}-${zone.yMm}-${zone.wMm}-${zone.dMm}`}
data-element="kit-plate-keepout"
>
<title>
{`Printer keep-out — ${Math.round(zone.wMm)} × ${Math.round(
zone.dMm
)} mm. Nothing may overlap it, and the slicer refuses the whole plate if anything does.`}
</title>
<rect
x={zone.xMm}
y={bed.dMm - zone.yMm - zone.dMm}
width={zone.wMm}
height={zone.dMm}
fill={`url(#${hatchId})`}
stroke={KEEPOUT_STROKE}
strokeWidth={0.6}
/>
</g>
))}
<g data-element="kit-plate-tower">
<title>
{`Purge tower — ${Math.round(tower.wMm)} × ${Math.round(
tower.dMm
)} mm reserved before packing, so the modules lay out around it instead of under it.`}
</title>
<rect
x={tower.xMm}
y={towerY}
width={tower.wMm}
height={tower.dMm}
rx={1.5}
fill="none"
stroke={TOWER_STROKE}
strokeWidth={0.7}
strokeDasharray="3 2.5"
/>
{labelFit(tower.wMm, tower.dMm, 'purge') > 0 && (
<text
x={tower.xMm + tower.wMm / 2}
y={towerY + tower.dMm / 2}
fontSize={labelFit(tower.wMm, tower.dMm, 'purge')}
fill={TOWER_STROKE}
textAnchor="middle"
dominantBaseline="central"
style={{ pointerEvents: 'none', userSelect: 'none' }}
>
purge
</text>
)}
</g>
{placements.map((at) => (
<ModuleRect key={at.id} at={at} dMm={bed.dMm} />
))}
</svg>
<div data-element="kit-plate-caption" style={{ ...STUDIO.type.note, marginTop: 6 }}>
{caption}
</div>
</div>
)
}
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