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import {
COLOR_PALETTES,
sampleColorPaletteById,
type ColorPaletteId
} from '@ska-octopus-widget-sdk/widget-sdk';
export const ATTR = {
preaduLevels: 'preaduLevels',
adcpower: 'adcpower',
PortsCurrentDraw: 'PortsCurrentDraw',
PortBreakersTripped: 'PortBreakersTripped'
} as const;
export type LayoutRow = {
id: string;
station: string; // "s8-1"
smartbox: string; // "sb05"
smartbox_port: number; // 1..N
label: string; // "sb05-09"
tpm: string; // "tpm01"
tpm_x_channel: number;
tpm_y_channel: number;
east: number | null;
north: number | null;
masked?: boolean;
};
export type Row = { device: string; name: string; value: any };
export type Antenna = {
label: string;
sb: string;
port: number;
tpmFull: string;
chX: number | null;
chY: number | null;
pwr_x: number | null;
pwr_y: number | null;
atten_x: number | null;
atten_y: number | null;
fem_current: number | null;
tripped: boolean | null;
masked: boolean;
east: number | null;
north: number | null;
};
export type Pt = { x: number; y: number };
export type RGB = [number, number, number];
export type LegacyColorScaleName = 'Viridis' | 'Cividis' | 'Jet' | 'YlGnBu';
export type ColorScaleName = ColorPaletteId | LegacyColorScaleName;
/* ─────────────────────── Color scales & helpers ─────────────────────── */
const LEGACY_PALETTES: Record<LegacyColorScaleName, RGB[]> = {
Viridis: [
[68, 1, 84],
[72, 40, 120],
[59, 82, 139],
[49, 104, 142],
[38, 130, 142],
[31, 158, 137],
[53, 183, 121],
[108, 206, 89],
[180, 222, 44],
[253, 231, 37]
],
Cividis: [
[0, 32, 76],
[25, 45, 91],
[44, 58, 102],
[58, 72, 110],
[73, 87, 117],
[89, 103, 120],
[107, 120, 121],
[127, 139, 118],
[152, 161, 109],
[181, 185, 94],
[213, 211, 79]
],
Jet: [
[0, 0, 131],
[0, 60, 170],
[5, 255, 255],
[120, 255, 120],
[255, 255, 0],
[255, 170, 0],
[250, 0, 0],
[128, 0, 0]
],
YlGnBu: [
[255, 255, 204],
[199, 233, 180],
[127, 205, 187],
[65, 182, 196],
[29, 145, 192],
[34, 94, 168],
[12, 44, 132]
]
};
const DEFAULT_SDK_COLOR_SCHEME: ColorPaletteId = (
Object.keys(COLOR_PALETTES).includes('scientificActon10')
? 'scientificActon10'
: (Object.keys(COLOR_PALETTES)[0] ?? 'tableau10')
) as ColorPaletteId;
export const DEFAULT_COLOR_SCHEME: ColorScaleName = DEFAULT_SDK_COLOR_SCHEME;
export function getColorScaleLabel(scale: ColorScaleName): string {
if (isLegacyScale(scale)) return scale;
return COLOR_PALETTES[scale as ColorPaletteId]?.label ?? String(scale);
}
function hexToRgb(hex: string): RGB | null {
const s = String(hex).trim().replace(/^#/, '');
Iif (!/^[0-9a-fA-F]{6}([0-9a-fA-F]{2})?$/.test(s)) return null;
const rgb = s.slice(0, 6);
const r = Number.parseInt(rgb.slice(0, 2), 16);
const g = Number.parseInt(rgb.slice(2, 4), 16);
const b = Number.parseInt(rgb.slice(4, 6), 16);
Iif (![r, g, b].every((v) => Number.isFinite(v))) return null;
return [r, g, b];
}
function isLegacyScale(scale: ColorScaleName): scale is LegacyColorScaleName {
return scale in LEGACY_PALETTES;
}
/** If a custom palette is provided and non-empty, use it; otherwise fallback to SDK palette or legacy by name. */
export function getPalette(scale: ColorScaleName, customPalette?: RGB[]): RGB[] {
if (Array.isArray(customPalette) && customPalette.length > 0) return customPalette;
if (isLegacyScale(scale)) return LEGACY_PALETTES[scale] ?? LEGACY_PALETTES.Viridis;
const paletteId = (
COLOR_PALETTES[scale as ColorPaletteId] ? scale : DEFAULT_SDK_COLOR_SCHEME
) as ColorPaletteId;
const sampled = sampleColorPaletteById(paletteId, 16);
const rgb = sampled.map(hexToRgb).filter((x): x is RGB => Array.isArray(x));
return rgb.length > 1 ? rgb : LEGACY_PALETTES.Viridis;
}
function lerp(a: number, b: number, t: number) {
return a + (b - a) * t;
}
/**
* Map a numeric value within [min,max] to a color from the chosen palette.
* If customPalette is provided (non-empty), it overrides the builtin scale.
*/
export function colorForPower(
val: number,
min: number,
max: number,
scale: ColorScaleName = DEFAULT_SDK_COLOR_SCHEME,
customPalette?: RGB[]
) {
if (!isFinite(val)) return '#999';
const lo = isFinite(min) ? min : 0;
const hi = isFinite(max) && max !== min ? max : lo + 1;
let t = (val - lo) / (hi - lo);
Iif (!isFinite(t)) t = 0;
t = Math.max(0, Math.min(1, t));
const palette = getPalette(scale, customPalette);
const n = Math.max(1, palette.length - 1);
const x = t * n;
const i = Math.floor(x);
const f = Math.min(1, x - i);
const [r1, g1, b1] = palette[Math.max(0, Math.min(i, n))];
const [r2, g2, b2] = palette[Math.max(0, Math.min(i + 1, n))];
const r = Math.round(lerp(r1, r2, f));
const g = Math.round(lerp(g1, g2, f));
const b = Math.round(lerp(b1, b2, f));
return `rgb(${r}, ${g}, ${b})`;
}
/** Build a CSS linear-gradient for the legend (left→right). */
export function gradientCss(scale: ColorScaleName, customPalette?: RGB[]): string {
const pal = getPalette(scale, customPalette);
const n = Math.max(1, pal.length - 1);
const stops = pal
.map(([r, g, b], i) => {
const pct = Math.round((i * 100) / n);
return `rgb(${r}, ${g}, ${b}) ${pct}%`;
})
.join(', ');
return `linear-gradient(to right, ${stops})`;
}
/* ───────────────────────── Array & math helpers ───────────────────────── */
export function chunk<T>(arr: T[], n: number): T[][] {
const size = Math.max(1, Math.floor(n));
const out: T[][] = [];
for (let i = 0; i < arr.length; i += size) out.push(arr.slice(i, i + size));
return out;
}
/** Pixel-stable antenna radius; can be less than 1px if desired. */
export function radiusPx(attenDb: number | null | undefined, minPx: number, maxPx: number) {
const clampMin = Math.max(0.1, minPx); // allow sub-1px, but keep >=0.1
const clampMax = Math.max(clampMin, maxPx);
const minDb = 0,
maxDb = 32;
if (attenDb == null || !isFinite(attenDb)) return (clampMin + clampMax) * 0.5;
const t = Math.max(0, Math.min(1, (attenDb - minDb) / (maxDb - minDb)));
return clampMin + (1 - t) * (clampMax - clampMin);
}
export function fmt2(v: number | null | undefined) {
const n = Number(v);
return isFinite(n) ? n.toFixed(2) : '—';
}
export function buildFullNames(smartboxes: string[], tpmIds: string[], stationId: string) {
const names = new Set<string>();
for (const sb of smartboxes) {
const sbDev = `low-mccs/smartbox/${stationId}-${sb}`;
names.add(`${sbDev}/${ATTR.PortsCurrentDraw}`);
names.add(`${sbDev}/${ATTR.PortBreakersTripped}`);
}
for (const tpmId of tpmIds) {
const tileDev = `low-mccs/tile/${tpmId}`;
names.add(`${tileDev}/${ATTR.preaduLevels}`);
names.add(`${tileDev}/${ATTR.adcpower}`);
}
return Array.from(names);
}
export function buildAntennas(
layoutRows: LayoutRow[],
byDev: Map<string, Map<string, any>>,
stationId: string
): Antenna[] {
const getSmartboxArr = (sbSuffix: string, key: string) => {
const dev = `low-mccs/smartbox/${stationId}-${sbSuffix}`;
return byDev.get(dev)?.get(key.toLowerCase()) as any[] | undefined;
};
const getTileArrs = (tpmFull: string) => {
const dev = `low-mccs/tile/${tpmFull}`;
return {
pwr: byDev.get(dev)?.get(ATTR.adcpower.toLowerCase()) as number[] | undefined,
pre: byDev.get(dev)?.get(ATTR.preaduLevels.toLowerCase()) as number[] | undefined
};
};
const list: Antenna[] = [];
for (const r of layoutRows) {
const sb = String(r.smartbox).trim();
const port = Number(r.smartbox_port);
const label = r.label || `${sb}-${String(port).padStart(2, '0')}`;
const tpmFull = `${stationId}-${String(r.tpm).trim()}`;
const tile = getTileArrs(tpmFull);
const chX = Number(r.tpm_x_channel);
const chY = Number(r.tpm_y_channel);
const pwr_x =
Array.isArray(tile?.pwr) && chX >= 0 && chX < (tile?.pwr?.length ?? 0)
? Number(tile!.pwr![chX])
: null;
const pwr_y =
Array.isArray(tile?.pwr) && chY >= 0 && chY < (tile?.pwr?.length ?? 0)
? Number(tile!.pwr![chY])
: null;
const atten_x =
Array.isArray(tile?.pre) && chX >= 0 && chX < (tile?.pre?.length ?? 0)
? Number(tile!.pre![chX])
: null;
const atten_y =
Array.isArray(tile?.pre) && chY >= 0 && chY < (tile?.pre?.length ?? 0)
? Number(tile!.pre![chY])
: null;
const curr = getSmartboxArr(sb, ATTR.PortsCurrentDraw);
const brk = getSmartboxArr(sb, ATTR.PortBreakersTripped);
const fem_current =
Array.isArray(curr) && port - 1 < curr.length ? Number(curr[port - 1]) : null;
const b = Array.isArray(brk) && port - 1 < brk.length ? brk[port - 1] : null;
const tripped = b == null ? null : typeof b === 'boolean' ? b : Number(b) !== 0;
list.push({
label,
sb,
port,
tpmFull,
chX: isFinite(chX) ? chX : null,
chY: isFinite(chY) ? chY : null,
pwr_x,
pwr_y,
atten_x,
atten_y,
fem_current,
tripped,
masked: !!r.masked,
east: r.east ?? null,
north: r.north ?? null
});
}
return list;
}
export function computePowerRange(antennas: Antenna[]) {
const vals: number[] = [];
for (const a of antennas) {
const m = [a.pwr_x, a.pwr_y].filter((v) => isFinite(v as any)) as number[];
Eif (m.length) vals.push(m.reduce((s, v) => s + v, 0) / m.length);
}
if (!vals.length) return { min: 0, max: 1 };
vals.sort((a, b) => a - b);
const q = (p: number) => {
const pos = (vals.length - 1) * p,
b = Math.floor(pos),
r = pos - b;
const v1 = vals[b],
v2 = vals[Math.min(b + 1, vals.length - 1)];
return v1 + r * (v2 - v1);
};
let lo = q(0.05),
hi = q(0.95);
if (!isFinite(lo) || !isFinite(hi) || hi <= lo) {
lo = vals[0];
hi = vals[vals.length - 1] || lo + 1e-6;
}
if (hi - lo < 1e-6) hi = lo + 1e-6;
return { min: lo, max: hi };
}
export function computeTicks(range: { min: number; max: number }) {
const step = (range.max - range.min) / 4;
return [range.min, range.min + step, range.min + 2 * step, range.min + 3 * step, range.max];
}
/* ──────────────────────── Geometry helpers for grouping ───────────────────── */
export function convexHull(pts: Pt[]): Pt[] {
const a = pts.slice().sort((p, q) => (p.x === q.x ? p.y - q.y : p.x - q.x));
Iif (a.length <= 1) return a;
const lower: Pt[] = [];
for (const p of a) {
while (lower.length >= 2) {
const q = lower[lower.length - 1];
const r = lower[lower.length - 2];
if ((q.x - r.x) * (p.y - r.y) - (q.y - r.y) * (p.x - r.x) <= 0) lower.pop();
else break;
}
lower.push(p);
}
const upper: Pt[] = [];
for (let i = a.length - 1; i >= 0; i--) {
const p = a[i];
while (upper.length >= 2) {
const q = upper[upper.length - 1];
const r = upper[upper.length - 2];
if ((q.x - r.x) * (p.y - r.y) - (q.y - r.y) * (p.x - r.x) <= 0) upper.pop();
else break;
}
upper.push(p);
}
upper.pop();
lower.pop();
return lower.concat(upper);
}
export function pathFromPolygon(poly: Pt[]) {
Iif (!poly.length) return '';
const [h, ...t] = poly;
return `M ${h.x} ${h.y}` + t.map((p) => ` L ${p.x} ${p.y}`).join('') + ' Z';
}
export function polygonCentroid(poly: Pt[]): Pt {
// Area-weighted centroid for polygon; fall back to average if degenerate.
let a = 0,
cx = 0,
cy = 0;
for (let i = 0, j = poly.length - 1; i < poly.length; j = i++) {
const p = poly[i],
q = poly[j];
const f = p.x * q.y - q.x * p.y;
a += f;
cx += (p.x + q.x) * f;
cy += (p.y + q.y) * f;
}
Iif (Math.abs(a) < 1e-9) {
const s = poly.reduce((acc, p) => ({ x: acc.x + p.x, y: acc.y + p.y }), { x: 0, y: 0 });
return { x: s.x / poly.length, y: s.y / poly.length };
}
a *= 0.5;
return { x: cx / (6 * a), y: cy / (6 * a) };
}
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