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@@ -797,19 +797,40 @@ async function loadFinance() {
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</div>`;
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// ── SVG-Balkendiagramm ────────────────────────────────────────
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// Breite skaliert mit der Anzahl Tage (Mindestplatz pro Tag), statt bei vielen
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// Tagen alles in eine feste Breite zu quetschen — sonst werden Balken bei
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// langen Abrechnungsjahren (>60 Tage) zu Haarlinien und unlesbar.
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const H = 180, PL = 44, PR = 12, PT = 10, PB = 28;
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const n = days.length;
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const MIN_SLOT = 10; // px pro Tag (Balkenpaar + Abstand), unterhalb dessen nichts mehr lesbar ist
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const W = Math.max(600, PL + PR + n * MIN_SLOT);
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// Bei langen Abrechnungsjahren nicht jeden einzelnen Tag zeigen — statt 112
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// Tagesbalken lieber Wochenbalken, und davon nur die letzten 14 (reicht für
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// einen Trend, bleibt aber lesbar statt endlos zu scrollen).
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const rawN = days.length;
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const bucket = rawN > 180 ? 14 : rawN > 21 ? 7 : 1;
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const allPeriods = bucket === 1 ? days.map(d => ({
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fixed_eur: d.fixed_eur, spot_eur: d.spot_eur, label: d.date.slice(5),
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})) : (() => {
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const out = [];
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for (let i = 0; i < days.length; i += bucket) {
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const chunk = days.slice(i, i + bucket);
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const fixed = chunk.reduce((s, d) => s + (d.fixed_eur || 0), 0);
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const spotVals = chunk.map(d => d.spot_eur).filter(v => v != null);
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const spot = spotVals.length ? spotVals.reduce((a, b) => a + b, 0) : null;
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out.push({ fixed_eur: fixed, spot_eur: spot, label: chunk[0].date.slice(5) });
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}
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return out;
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})();
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const MAX_PERIODS = 14;
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const periods = allPeriods.slice(-MAX_PERIODS);
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// Echtes responsives SVG: viewBox in einer "Mobile-first"-Breite, skaliert per
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// width:100% frei auf den Container (Handy wie PC) — kein Scrollen mehr nötig,
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// da wir uns auf max. 14 Balken begrenzen.
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const n = periods.length;
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const W = 380, H = 220, PL = 40, PR = 8, PT = 14, PB = 46;
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const cW = W - PL - PR;
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const cH = H - PT - PB;
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const barW = Math.max(3, Math.floor(cW / n) - 2);
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const gap = Math.max(1, Math.floor(cW / n) - barW);
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const slot = cW / n;
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const barW = Math.max(3, slot * 0.36);
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const barGap = Math.max(1.5, slot * 0.08);
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const rBar = Math.min(2.5, barW / 2);
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const allVals = days.flatMap(d => [d.fixed_eur, d.spot_eur].filter(v => v != null));
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const allVals = periods.flatMap(d => [d.fixed_eur, d.spot_eur].filter(v => v != null));
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const maxVal = Math.max(...allVals, 0.01);
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const yTicks = 4;
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@@ -817,40 +838,50 @@ async function loadFinance() {
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for (let i = 0; i <= yTicks; i++) {
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const v = maxVal * i / yTicks;
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const y = PT + cH - (cH * i / yTicks);
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gridLines += `<line x1="${PL}" y1="${y.toFixed(1)}" x2="${W-PR}" y2="${y.toFixed(1)}" stroke="${C.grid}" stroke-width="0.5"/>`;
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yLabels += `<text x="${PL-4}" y="${(y+4).toFixed(1)}" text-anchor="end" font-size="9" fill="#8b949e">${fEur(v)}</text>`;
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gridLines += `<line x1="${PL}" y1="${y.toFixed(1)}" x2="${W-PR}" y2="${y.toFixed(1)}" stroke="${C.grid}" stroke-width="1" stroke-dasharray="2,3"/>`;
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yLabels += `<text x="${PL-6}" y="${(y+3).toFixed(1)}" text-anchor="end" font-size="9" fill="#8b949e">${fEur(v)}</text>`;
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}
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// Label-Abstand an der tatsächlichen Balkenbreite ausrichten (~60px pro Label),
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// statt pauschal 8 Labels über die ganze — jetzt variable — Breite zu verteilen.
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const labelStep = Math.max(1, Math.round(60 / (barW + gap)));
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// Labels schräg statt horizontal — braucht bei 14 Balken pro Label deutlich
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// weniger Breite, dadurch bleiben trotz Platzmangel alle 14 lesbar.
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let bars = '', xLabels = '';
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days.forEach((d, i) => {
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const x0 = PL + i * (barW + gap);
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const hFixed = cH * d.fixed_eur / maxVal;
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bars += `<rect x="${x0}" y="${(PT + cH - hFixed).toFixed(1)}" width="${barW/2}" height="${hFixed.toFixed(1)}" fill="${C.fixed}" opacity="0.85"/>`;
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periods.forEach((d, i) => {
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const cx = PL + i * slot + slot / 2;
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const hFixed = Math.max(0, cH * d.fixed_eur / maxVal);
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bars += `<rect x="${(cx - barGap/2 - barW).toFixed(1)}" y="${(PT + cH - hFixed).toFixed(1)}" width="${barW.toFixed(1)}" height="${Math.max(hFixed,1).toFixed(1)}" rx="${rBar}" fill="url(#gradFixed)"/>`;
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if (d.spot_eur != null) {
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const hSpot = cH * d.spot_eur / maxVal;
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bars += `<rect x="${x0 + barW/2}" y="${(PT + cH - hSpot).toFixed(1)}" width="${barW/2}" height="${hSpot.toFixed(1)}" fill="${C.spot}" opacity="0.85"/>`;
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}
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if (i % labelStep === 0) {
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const label = d.date.slice(5);
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xLabels += `<text x="${(x0 + barW/2).toFixed(1)}" y="${H - 4}" text-anchor="middle" font-size="9" fill="#8b949e">${label}</text>`;
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const hSpot = Math.max(0, cH * d.spot_eur / maxVal);
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bars += `<rect x="${(cx + barGap/2).toFixed(1)}" y="${(PT + cH - hSpot).toFixed(1)}" width="${barW.toFixed(1)}" height="${Math.max(hSpot,1).toFixed(1)}" rx="${rBar}" fill="url(#gradSpot)"/>`;
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}
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const ly = H - PB + 12;
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xLabels += `<text x="${cx.toFixed(1)}" y="${ly}" text-anchor="end" font-size="8.5" fill="#8b949e" transform="rotate(-40 ${cx.toFixed(1)} ${ly})">${d.label}</text>`;
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});
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const legend = `<text x="${PL}" y="${H+18}" font-size="10" fill="${C.fixed}">■ Festpreis</text>
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<text x="${PL+70}" y="${H+18}" font-size="10" fill="${C.spot}">■ Spot (hypothetisch)</text>`;
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const defs = `<defs>
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<linearGradient id="gradFixed" x1="0" y1="0" x2="0" y2="1">
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<stop offset="0%" stop-color="${C.fixed}" stop-opacity="0.95"/>
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<stop offset="100%" stop-color="${C.fixed}" stop-opacity="0.55"/>
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</linearGradient>
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<linearGradient id="gradSpot" x1="0" y1="0" x2="0" y2="1">
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<stop offset="0%" stop-color="${C.spot}" stop-opacity="0.95"/>
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<stop offset="100%" stop-color="${C.spot}" stop-opacity="0.55"/>
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</linearGradient>
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</defs>`;
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const bucketLabel = bucket === 1 ? 'Tag' : bucket === 7 ? 'Woche' : '2 Wochen';
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const rangeNote = allPeriods.length > MAX_PERIODS ? ` · letzte ${n}` : '';
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const legend = `<div style="display:flex;gap:18px;margin-top:10px;font-size:11px;color:var(--text-dim)">
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<span style="display:inline-flex;align-items:center;gap:6px"><span style="width:10px;height:10px;border-radius:3px;background:${C.fixed};display:inline-block"></span>Festpreis</span>
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<span style="display:inline-flex;align-items:center;gap:6px"><span style="width:10px;height:10px;border-radius:3px;background:${C.spot};display:inline-block"></span>Spot (hypothetisch)</span>
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</div>`;
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const chartSection = `
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<div style="border-top:1px solid var(--border);padding-top:24px;margin-top:4px">
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<div style="font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--text-dim);margin-bottom:14px">Kosten je Tag</div>
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<div style="overflow-x:auto">
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<svg viewBox="0 0 ${W} ${H+24}" width="${W}" height="${H+24}" style="width:${W}px;max-width:none;display:block">
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${gridLines}${yLabels}${bars}${xLabels}${legend}
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</svg>
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</div>
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${n > 60 ? `<div style="font-size:11px;color:var(--text-dim);margin-top:6px">← Horizontal scrollbar, ${n} Tage</div>` : ''}
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<div style="font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--text-dim);margin-bottom:14px">Kosten je ${bucketLabel}${rangeNote}</div>
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<svg viewBox="0 0 ${W} ${H}" style="width:100%;height:auto;display:block">
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${defs}${gridLines}${yLabels}${bars}${xLabels}
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</svg>
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${legend}
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</div>`;
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el.innerHTML = `<div style="padding:4px 0">${empfehlung}${cards}${chartSection}</div>`;
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