Nettoyage et construction micro services
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Christian CUNAT-BRULE
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// Instrument rendering and telemetry projection; no network or persistence.
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export function initInstruments() {
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const $ = selector => document.querySelector(selector);
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const icons = {
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"fuelPercent": "<path d=\"M4 21V5a2 2 0 0 1 2-2h6a2 2 0 0 1 2 2v16M3 21h12M4 10h10m3-6 3 3v11a2 2 0 0 1-4 0v-5a2 2 0 0 0-2-2m4-6v4h2\"/>",
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"coolantCelsius": "<path d=\"M10 12V4a2 2 0 0 1 4 0v8a3.5 3.5 0 1 1-4 0Zm2-6v9m4-9h2m-2 3h2M2 19q2-2 4 0t4 0t4 0t4 0t4 0M2 23q2-2 4 0t4 0t4 0t4 0t4 0\"/>"
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};
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function makeGauge(id, max, step, unit, label) {
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const point = (angle, radius) => {
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const r = angle * Math.PI / 180;
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return [150 + radius * Math.sin(r), 150 - radius * Math.cos(r)];
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};
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let ticks = '';
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for (let v = 0; v <= max; v += step / 4) {
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const angle = -130 + v / max * 260;
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const major = v % step === 0;
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const a = point(angle, major ? 112 : 119), b = point(angle, 126), n = point(angle, 96);
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ticks += `<line class="tick ${major ? 'major' : v % (step / 2) === 0 ? 'intermediate' : 'quarter'}" x1="${a[0]}" y1="${a[1]}" x2="${b[0]}" y2="${b[1]}"/>`;
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if (major) ticks += `<text class="dial-number" x="${n[0]}" y="${n[1] + 4}">${max === 7000 ? v / 1000 : v}</text>`;
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}
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// Decorative demonstration red zone; not a calibrated vehicle redline.
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const redStart = point(-130 + 5500 / 7000 * 260, 128), redEnd = point(130, 128);
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const redZone = max === 7000 ? `<defs><linearGradient id="rpm-red-zone" gradientUnits="userSpaceOnUse" x1="${redStart[0]}" y1="${redStart[1]}" x2="${redEnd[0]}" y2="${redEnd[1]}"><stop stop-color="#f7a65d" stop-opacity="0.1"/><stop offset="0.5" stop-color="#f67855"/><stop offset="1" stop-color="#fa4d5b"/></linearGradient></defs><path class="rpm-red-zone" d="M${redStart.join(' ')} A128 128 0 0 1 ${redEnd.join(' ')}"/>` : '';
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const levelKey = max === 7000 ? 'coolantCelsius' : 'fuelPercent';
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const iconPath = icons[levelKey];
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// Compact auxiliary arc, separated from the main instrument.
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const levelPoint = (angle, radius = 64) => [150+radius*Math.sin(angle*Math.PI/180),244-radius*Math.cos(angle*Math.PI/180)];
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// 86.8 degrees: 30% shorter than the previous 124-degree auxiliary arc.
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const arcPath = (from,to) => `M${levelPoint(from).join(' ')} A64 64 0 0 0 ${levelPoint(to).join(' ')}`;
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const arc = arcPath(223.4,136.6);
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const redArc = max===7000 ? arcPath(153.96,136.6) : arcPath(223.4,212.984);
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const tickRatios = max === 7000 ? [0,.28,.56,.84,1] : [0,.12,.4133333333,.7066666667,1];
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const levelTicks = tickRatios.map((fraction,index) => {
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const angle = 223.4 - 86.8*fraction;
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const inner=levelPoint(angle,54), outer=levelPoint(angle,61);
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return `<path class="level-tick" d="M${inner.join(' ')} L${outer.join(' ')}"/>`;
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}).join('');
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const level = `<g class="digital-levels" data-digital-level="${levelKey}"><path class="level-arc-track" d="${arc}"/><path class="level-arc-progress" pathLength="100" d="${arc}"/><path class="level-arc-red" d="${redArc}"/>${levelTicks}<text class="level-end" x="95" y="304">${max===7000?'C':'E'}</text><text class="level-end" x="205" y="304">${max===7000?'H':'F'}</text>${max===7000?'':'<text class="level-end" x="150" y="325">½</text>'}<g class="level-icon" transform="translate(${max===7000?139.8:141.6} ${max===7000?267.8:269.6}) scale(${max===7000?.85:.7})" fill="none" stroke="currentColor" stroke-width="1.8" stroke-linecap="round" stroke-linejoin="round">${iconPath}</g><text class="level-value" x="150" y="348"><tspan data-value="${levelKey}">—</tspan> ${max===7000?'°C':'%'}</text></g>`;
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const low = max === 7000 ? 'C' : 'E', high = max === 7000 ? 'H' : 'F';
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const mini = `<path class="analog-separator" d="M59.590 240.609 L77 226 L223 226 L240.410 240.609"/><g class="analog-levels" data-analog-level="${levelKey}"><g transform="translate(150 264) scale(0.90) translate(-150 -264)"><g transform="translate(0 572) scale(1 -1)"><path class="mini-track" d="M90 308 A60 60 0 0 1 210 308"/><path class="mini-red" d="${max===7000?'M192.4 265.6 A60 60 0 0 1 210 308':'M90 308 A60 60 0 0 1 107.6 265.6'}"/><path class="mini-ticks" d="M90 308h8M107.6 265.6l6 6M150 248v8M192.4 265.6l-6 6M210 308h-8"/><text class="mini-end" transform="translate(0 604) scale(1 -1)" x="104" y="302">${low}</text><text class="mini-end" transform="translate(0 604) scale(1 -1)" x="196" y="302">${high}</text>${max===7000?'':`<text class="mini-end" transform="translate(0 520) scale(1 -1)" x="150" y="260">½</text>`}<line class="mini-needle" x1="150" y1="308" x2="150" y2="258"/><circle class="mini-hub" cx="150" cy="308" r="3"/></g></g><g class="level-icon" transform="translate(${max===7000?139.8:141.6} ${max===7000?277.8:279.6}) scale(${max===7000?.85:.7})" fill="none" stroke="currentColor" stroke-width="1.8" stroke-linecap="round" stroke-linejoin="round">${iconPath}</g><text class="level-value" x="150" y="368"><tspan data-value="${levelKey}">—</tspan> ${max===7000?'°C':'%'}</text></g>`;
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$(id).innerHTML = `<svg viewBox="0 0 300 265" role="img" aria-label="${label} : en attente"><path class="dial-rim" d="M68.4 255 A133 133 0 1 1 231.6 255 Z" fill="none" stroke="var(--border)"/><path class="dial-light" d="M51.9 232.3 A128 128 0 1 1 248.1 232.3"/><path class="digital-track" d="M51.9 232.3 A128 128 0 1 1 248.1 232.3"/><path class="digital-progress" pathLength="100" d="M51.9 232.3 A128 128 0 1 1 248.1 232.3"/>${ticks}${redZone}<text x="150" y="110" class="dial-label analog-unit">${unit}</text><text x="150" y="110" class="dial-label digital-unit">${max === 7000 ? 'TR/MIN' : unit}</text><line class="needle" x1="150" y1="150" x2="150" y2="43" style="transform-origin:150px 150px;transform:rotate(-130deg)"/><circle class="needle-hub" cx="150" cy="150" r="7" fill="var(--accent)"/><circle class="needle-hub" cx="150" cy="150" r="3" fill="var(--surface)"/><text x="150" y="212" class="dial-value">—</text><text x="150" y="239" class="dial-label">${label}</text>${level}${mini}</svg>`;
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return value => {
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const valid = typeof value === 'number' && Number.isFinite(value);
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$(`${id} .dial-value`).textContent = valid ? Math.round(value).toLocaleString('fr-FR') : '—';
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$(`${id} .digital-progress`).style.strokeDashoffset = String(valid ? 100 - Math.max(0,Math.min(1,value/max))*100 : 100);
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$(`${id} .needle`).style.opacity = valid ? '1' : '0';
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if (valid) $(`${id} .needle`).style.transform = `rotate(${-130 + Math.max(0, Math.min(max, value)) / max * 260}deg)`;
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$(`${id} svg`).setAttribute('aria-label', `${label} : ${valid ? Math.round(value) : 'indisponible'} ${max === 7000 ? 'tr/min' : 'km/h'}`);
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};
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}
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const speedGauge = makeGauge('#speed-gauge', 220, 20, 'KM/H', 'VITESSE');
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const rpmGauge = makeGauge('#rpm-gauge', 7000, 1000, '× 1 000 TR/MIN', 'RÉGIME MOTEUR');
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function updateLevels(data) {
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for (const key of ['fuelPercent', 'coolantCelsius']) {
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const value = data?.[key], valid = Number.isFinite(value);
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const min = key === 'fuelPercent' ? 0 : 40, max = key === 'fuelPercent' ? 100 : 130;
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const ratio = valid ? Math.max(0,Math.min(1,(value-min)/(max-min))) : 0;
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const analog = document.querySelector(`[data-analog-level="${key}"]`);
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analog.querySelector('.mini-needle').style.transform = `rotate(${-90 + ratio*180}deg)`;
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analog.querySelector('.mini-needle').style.opacity = valid ? '1' : '0';
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analog.classList.toggle('red-zone', valid && (key === 'fuelPercent' ? ratio <= .25 : ratio >= .75));
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const digital = document.querySelector(`[data-digital-level="${key}"]`);
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const stops = key === 'fuelPercent' ? [0,.12,.4133333333,.7066666667,1] : [0,.28,.56,.84,1];
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const stepped = stops.filter(stop => stop <= ratio).at(-1) ?? 0;
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const progress = digital.querySelector('.level-arc-progress');
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progress.style.strokeDashoffset = String(100*(1-stepped));
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progress.style.opacity = valid && stepped > 0 ? '1' : '0';
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digital.classList.toggle('last-level', valid && key === 'coolantCelsius' && ratio >= .84);
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digital.classList.toggle('reserve-level', valid && key === 'fuelPercent' && stepped === .12);
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digital.classList.toggle('red-zone', valid && (key === 'fuelPercent' ? ratio <= .25 : ratio >= .75));
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for (const el of [analog, digital]) {
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el.setAttribute('role', 'meter');
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el.setAttribute('aria-label', key === 'fuelPercent' ? 'Carburant' : 'Température moteur');
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el.setAttribute('aria-valuemin', String(min)); el.setAttribute('aria-valuemax', String(max));
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if (valid) el.setAttribute('aria-valuenow', String(value)); else el.removeAttribute('aria-valuenow');
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el.setAttribute('aria-valuetext', valid ? value + (key === 'fuelPercent' ? ' %' : ' °C') : 'Indisponible');
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}
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}
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}
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return { speedGauge, rpmGauge, updateLevels };
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}
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