add icons to lists and solve money tracker bugs
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This commit is contained in:
2026-09-24 19:24:09 +00:00
parent a10585a4d2
commit c757d0882a
18 changed files with 1358 additions and 731 deletions

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@@ -1,35 +1,74 @@
<script lang="ts">
import type { ChartSeries } from './charts';
import type { ChartPoint, ChartSeries } from './charts';
let {
series,
title,
unit = '€'
}: { series: ChartSeries[]; title: string; unit?: string } = $props();
const width = 800;
const height = 260;
const plot = { left: 72, right: 18, top: 14, bottom: 38 };
unit = '€',
marker
}: {
series: ChartSeries[];
title: string;
unit?: string;
marker?: { date: string; label: string };
} = $props();
let clientWidth = $state(800);
let width = $derived(Math.max(280, clientWidth));
let compact = $derived(width < 520);
let height = $derived(compact ? 240 : 280);
let plot = $derived({ left: compact ? 52 : 72, right: 14, top: 18, bottom: 30 });
let values = $derived(series.flatMap((item) => item.points.map((point) => point.value)));
let dates = $derived(
series.flatMap((item) => item.points.map((point) => Date.parse(`${point.date}T12:00:00Z`)))
);
let min = $derived(Math.min(0, ...values));
let max = $derived(Math.max(0, ...values));
let times = $derived(series.flatMap((item) => item.points.map((point) => time(point.date))));
let scale = $derived(niceScale(Math.min(0, ...values), Math.max(0, ...values)));
let min = $derived(scale.min);
let max = $derived(scale.max);
let span = $derived(max - min || 1);
let from = $derived(Math.min(...dates));
let until = $derived(Math.max(...dates));
let from = $derived(Math.min(...times));
let until = $derived(Math.max(...times));
let dateSpan = $derived(until - from || 1);
let snapDates = $derived(
[...new Set(series.flatMap((item) => item.points.map((point) => point.date)))].sort()
);
let hoverDate = $state<string | null>(null);
let hoverRows = $derived(
hoverDate === null
? []
: series.flatMap((item) => {
const point = pointAt(item.points, hoverDate!);
return point ? [{ item, point }] : [];
})
);
const money = new Intl.NumberFormat('en-NL', { maximumFractionDigits: 0 });
const euros = new Intl.NumberFormat('en-NL', {
style: 'currency',
currency: 'EUR',
maximumFractionDigits: 0
});
const exact = new Intl.NumberFormat('en-NL', { style: 'currency', currency: 'EUR' });
/** Rounds the value range out to 1/2/5 × 10ⁿ steps so gridlines land on round amounts. */
function niceScale(low: number, high: number) {
const raw = (high - low || 1) / 3;
const magnitude = 10 ** Math.floor(Math.log10(raw));
const step = ([1, 2, 2.5, 5, 10].find((factor) => factor * magnitude >= raw) ?? 10) * magnitude;
// A dip of a few euros below zero should not add a whole empty gridline band.
const min = low > -step * 0.05 ? 0 : Math.floor(low / step) * step;
const max = Math.ceil(high / step) * step;
const ticks: number[] = [];
for (let value = max; value >= min - step / 2; value -= step) ticks.push(value);
return { min, max, ticks };
}
function time(date: string) {
return Date.parse(`${date}T12:00:00Z`);
}
function x(date: string) {
return (
plot.left +
((Date.parse(`${date}T12:00:00Z`) - from) / dateSpan) * (width - plot.left - plot.right)
);
return plot.left + ((time(date) - from) / dateSpan) * (width - plot.left - plot.right);
}
function y(value: number) {
return plot.top + (1 - (value - min) / span) * (height - plot.top - plot.bottom);
}
function path(points: ChartSeries['points']) {
function path(points: ChartPoint[]) {
return points
.map(
(point, index) =>
@@ -37,26 +76,76 @@
)
.join(' ');
}
function dateLabel(value: number) {
return new Date(value).toLocaleDateString('en-NL', {
/** Solid part through `dashedFrom` and dashed part from the last solid point onward. */
function segments(item: ChartSeries) {
if (!item.dashedFrom) return { solid: item.points, dashed: [] };
const split = item.points.findLastIndex((point) => point.date <= item.dashedFrom!);
return split < 0
? { solid: [], dashed: item.points }
: { solid: item.points.slice(0, split + 1), dashed: item.points.slice(split) };
}
function pointAt(points: ChartPoint[], date: string) {
if (!points.length || date < points[0].date || date > points.at(-1)!.date) return null;
return points.findLast((point) => point.date <= date) ?? null;
}
function ticks() {
const months = (until - from) / (30.44 * 86_400_000);
const step = [1, 2, 3, 6, 12, 24].find((size) => months / size <= (compact ? 3 : 6)) ?? 48;
const start = new Date(from);
const result: string[] = [];
let year = start.getUTCFullYear();
let month = start.getUTCMonth() + 1;
month = Math.ceil(month / step) * step;
for (let guard = 0; guard < 60; guard++) {
while (month >= 12) {
month -= 12;
year++;
}
const date = `${year}-${String(month + 1).padStart(2, '0')}-01`;
if (time(date) > until) break;
if (time(date) >= from) result.push(date);
month += step;
}
return result;
}
function dateLabel(date: string, withDay = false) {
return new Date(time(date)).toLocaleDateString('en-NL', {
day: withDay ? 'numeric' : undefined,
month: 'short',
year: 'numeric',
year: withDay ? 'numeric' : '2-digit',
timeZone: 'UTC'
});
}
function format(value: number, precise = false) {
if (unit !== '€') return `${money.format(value)} ${unit}`;
return (precise ? exact : euros).format(value / 100);
}
function hover(event: PointerEvent) {
const svg = event.currentTarget as SVGSVGElement;
const box = svg.getBoundingClientRect();
const position = ((event.clientX - box.left) / box.width) * width;
const target = from + ((position - plot.left) / (width - plot.left - plot.right)) * dateSpan;
let best: string | null = null;
for (const date of snapDates)
if (best === null || Math.abs(time(date) - target) < Math.abs(time(best) - target))
best = date;
hoverDate = best;
}
</script>
<figure class="chart">
{#if values.length}
<div class="chart-scroll" role="region" aria-label={title}>
<div class="chart-area" bind:clientWidth>
<svg
viewBox={`0 0 ${width} ${height}`}
width={clientWidth ? undefined : width}
role="img"
aria-label={title}
preserveAspectRatio="xMidYMid meet"
onpointermove={hover}
onpointerdown={hover}
onpointerleave={() => (hoverDate = null)}
>
{#each [0, 0.5, 1] as fraction (fraction)}
{@const value = max - span * fraction}
{#each scale.ticks as value (value)}
<line
x1={plot.left}
x2={width - plot.right}
@@ -66,53 +155,123 @@
stroke-width="1"
/>
<text
x={plot.left - 12}
x={plot.left - 8}
y={y(value) + 4}
text-anchor="end"
fill="var(--site-muted)"
font-size="11">{unit}{money.format(value / (unit === '€' ? 100 : 1))}</text
font-size="11">{format(value)}</text
>
{/each}
{#each ticks() as tick (tick)}
<text
x={x(tick)}
y={height - 8}
text-anchor="middle"
fill="var(--site-muted)"
font-size="11">{dateLabel(tick)}</text
>
{/each}
{#if marker && time(marker.date) >= from && time(marker.date) <= until}
<line
x1={x(marker.date)}
x2={x(marker.date)}
y1={plot.top - 6}
y2={height - plot.bottom}
stroke="var(--site-muted)"
stroke-width="1"
stroke-dasharray="2 3"
/>
<text
x={x(marker.date)}
y={plot.top - 8}
text-anchor="middle"
fill="var(--site-muted)"
font-size="11">{marker.label}</text
>
{/if}
{#each series as item (item.label)}
{#if item.points.length}
<path
d={path(item.points)}
fill="none"
stroke={item.color}
stroke-width={item.emphasis ? 3.5 : 2}
stroke-linecap="round"
stroke-linejoin="round"
vector-effect="non-scaling-stroke"
/>
{#if item.points.length === 1}
<circle
cx={x(item.points[0].date)}
cy={y(item.points[0].value)}
r={item.emphasis ? 4 : 3}
fill={item.color}
{@const parts = segments(item)}
{#each [parts.solid, parts.dashed] as points, index (index)}
{#if points.length > 1}
<path
d={path(points)}
fill="none"
stroke={item.color}
stroke-width={item.emphasis ? 3 : 1.75}
stroke-dasharray={index ? '6 5' : undefined}
stroke-linecap={index ? 'butt' : 'round'}
stroke-linejoin="round"
/>
{/if}
{/each}
{#if item.points.length === 1}
<circle
cx={x(item.points[0].date)}
cy={y(item.points[0].value)}
r="4"
fill={item.color}
/>
{/if}
{/each}
<text x={plot.left} y={height - 8} fill="var(--site-muted)" font-size="11"
>{dateLabel(from)}</text
>
<text
x={width - plot.right}
y={height - 8}
text-anchor="end"
fill="var(--site-muted)"
font-size="11">{dateLabel(until)}</text
>
{#if hoverDate}
<line
x1={x(hoverDate)}
x2={x(hoverDate)}
y1={plot.top}
y2={height - plot.bottom}
stroke="var(--site-muted)"
stroke-width="1"
/>
{#each hoverRows as row (row.item.label)}
<circle
cx={x(hoverDate)}
cy={y(row.point.value)}
r="4"
fill={row.item.color}
stroke="var(--site-bg, #000)"
stroke-width="2"
/>
{/each}
{/if}
<rect
x={plot.left}
y={plot.top}
width={width - plot.left - plot.right}
height={height - plot.top - plot.bottom}
fill="transparent"
/>
</svg>
{#if hoverDate && hoverRows.length}
<div
class="tooltip"
class:flip={x(hoverDate) > width / 2}
style={`left:${x(hoverDate)}px`}
role="status"
>
<p class="tooltip-date">
{dateLabel(hoverDate, true)}{#if marker && hoverDate > marker.date}&nbsp;· projected{/if}
</p>
{#each hoverRows as row (row.item.label)}
<p class:emphasis={row.item.emphasis}>
<span class="swatch" style={`background:${row.item.color}`}></span>
<span class="tooltip-label">{row.item.label}</span>
<span class="tooltip-value">{format(row.point.value, true)}</span>
</p>
{/each}
</div>
{/if}
</div>
{#if series.length > 1}
{#if series.length > 1 || series.some((item) => item.dashedFrom)}
<figcaption class="legend">
{#each series as item (item.label)}
<span class:emphasis={item.emphasis}
><span class="swatch" style={`background:${item.color}`}></span>{item.label}</span
>
{/each}
{#if series.some((item) => item.dashedFrom)}
<span class="line-key first"><span class="key solid"></span>Actual</span>
<span class="line-key"><span class="key dashed"></span>Projected</span>
{/if}
</figcaption>
{/if}
{:else}
@@ -124,14 +283,54 @@
.chart {
min-width: 0;
}
.chart-scroll {
overflow-x: auto;
.chart-area {
position: relative;
touch-action: pan-y;
}
svg {
display: block;
width: 100%;
min-width: 540px;
height: auto;
overflow: visible;
user-select: none;
}
.tooltip {
position: absolute;
top: 4px;
z-index: 2;
min-width: 170px;
max-width: 240px;
margin-left: 12px;
padding: 8px 10px;
border: 1px solid var(--site-border);
border-radius: 7px;
background: var(--site-bg, #000);
box-shadow: 0 6px 20px rgb(0 0 0 / 0.25);
font-size: 12px;
pointer-events: none;
}
.tooltip.flip {
transform: translateX(calc(-100% - 24px));
}
.tooltip p {
display: flex;
align-items: center;
gap: 7px;
margin: 0;
color: var(--site-muted);
line-height: 1.6;
}
.tooltip p.emphasis {
color: var(--site-text);
font-weight: 600;
}
.tooltip .tooltip-date {
color: var(--site-text);
}
.tooltip-value {
margin-left: auto;
color: var(--site-text);
font-variant-numeric: tabular-nums;
}
.legend {
display: flex;
@@ -147,16 +346,27 @@
gap: 7px;
}
.legend > span.emphasis {
order: -1;
flex-basis: 100%;
color: var(--site-text);
font-weight: 600;
}
.legend > .line-key.first {
margin-left: auto;
}
.key {
display: inline-block;
width: 18px;
border-top: 2px solid var(--site-muted);
}
.key.dashed {
border-top-style: dashed;
}
.swatch {
display: inline-block;
flex: none;
width: 8px;
height: 8px;
border-radius: 50%;
box-shadow: 0 0 0 1px var(--site-border);
}
.empty {
padding: 70px 0;

View File

@@ -1,10 +1,12 @@
import { describe, expect, it } from 'vitest';
import {
accountBalances,
accountColor,
balanceSeries,
forecastSeries,
utilityEstimate,
wealthProjection
wealthProjection,
wealthTimeline
} from './charts';
describe('money tracker calculations', () => {
@@ -31,6 +33,18 @@ describe('money tracker calculations', () => {
);
});
it("uses an account's chosen color and falls back to the palette", () => {
const series = balanceSeries(
[
{ id: 1, name: 'Revolut', openingBalanceCents: 0, color: '#000000' },
{ id: 2, name: 'Knab', openingBalanceCents: 0, color: null }
],
[{ accountId: 1, date: '2026-01-01', amountCents: 100 }]
);
expect(series[0].color).toBe('#000000');
expect(series[1].color).toBe(accountColor({ color: null }, 1));
});
it('plots combined transactions in date order even if the input is unordered', () => {
const combined = balanceSeries(
[{ id: 1, name: 'Cash', openingBalanceCents: 1000 }],
@@ -113,6 +127,108 @@ describe('money tracker calculations', () => {
expect(series[0].points.at(-1)?.value).toBe(15000);
});
it('invests excess each month without requiring an existing investment account', () => {
const projection = wealthProjection(
[{ id: 1, kind: 'spendable', openingBalanceCents: 40054 }],
new Map([[1, 40054]]),
[],
[],
[{ amountCents: 127137, cadence: 'monthly', accountId: 1 }],
{
investmentAccountId: null,
reserveCents: 100000,
annualReturnPercent: '5.00',
contributionMode: 'excess',
fixedMonthlyCents: 0,
includeRecurring: 1,
endDate: '2026-11-30'
},
'2026-09-23'
);
expect(projection[0].points.map((point) => point.value)).toEqual([
40054, 40054, 167191, 294602
]);
expect(projection[1].points.at(-1)?.value).toBe(100000);
expect(projection[2].points.at(-1)?.value).toBe(194602);
});
it('continues actual history into the projection as one dashed line', () => {
const accounts = [
{ id: 1, name: 'Bank', kind: 'spendable', openingBalanceCents: 0 },
{ id: 2, name: 'Broker', kind: 'investment', openingBalanceCents: 0 }
];
const actual = [
{ accountId: 1, date: '2026-09-01', amountCents: 50000 },
{ accountId: 2, date: '2026-09-10', amountCents: 20000 }
];
const projection = [
{
label: 'Total wealth',
color: '',
points: [
{ date: '2026-09-23', value: 70000 },
{ date: '2026-10-31', value: 90000 }
]
},
{
label: 'Spendable',
color: '',
points: [
{ date: '2026-09-23', value: 50000 },
{ date: '2026-10-31', value: 60000 }
]
},
{
label: 'Invested',
color: '',
points: [
{ date: '2026-09-23', value: 20000 },
{ date: '2026-10-31', value: 30000 }
]
}
];
const [total] = wealthTimeline(accounts, actual, projection, '2026-09-23', 'total');
expect(total.dashedFrom).toBe('2026-09-23');
expect(total.points).toEqual([
{ date: '2026-09-01', value: 50000 },
{ date: '2026-09-10', value: 70000 },
{ date: '2026-09-23', value: 70000 },
{ date: '2026-10-31', value: 90000 }
]);
const [, spendable, invested] = wealthTimeline(
accounts,
actual,
projection,
'2026-09-23',
'split'
);
expect(spendable.points.map((point) => point.value)).toEqual([50000, 50000, 50000, 60000]);
expect(invested.points.map((point) => point.value)).toEqual([0, 20000, 20000, 30000]);
const byAccount = wealthTimeline(accounts, actual, projection, '2026-09-23', 'accounts');
expect(byAccount.map((line) => line.label)).toEqual(['Bank', 'Broker', 'Total']);
expect(byAccount[0].points.at(-1)).toEqual({ date: '2026-09-23', value: 50000 });
});
it('starts the timeline at today when there is no history', () => {
const [total] = wealthTimeline(
[],
[],
[
{
label: 'Total wealth',
color: '',
points: [
{ date: '2026-09-23', value: 0 },
{ date: '2026-10-31', value: 100 }
]
}
],
'2026-09-23',
'total'
);
expect(total.points.map((point) => point.date)).toEqual(['2026-09-23', '2026-10-31']);
});
it('compares estimated usage cost with prorated advances', () => {
const result = utilityEstimate(
[

View File

@@ -4,13 +4,21 @@ export type ChartSeries = {
color: string;
points: ChartPoint[];
emphasis?: boolean;
/** Points after this date are drawn dashed (projected). */
dashedFrom?: string;
};
const palette = ['#0070f3', '#e5484d', '#46a758', '#ad7f00', '#8e4ec6', '#0091ad', '#e56910'];
/** The account's chosen color, or a palette color based on its position in the list. */
export function accountColor(account: { color?: string | null }, index: number): string {
return account.color || palette[index % palette.length];
}
export function balanceSeries(
accounts: { id: number; name: string; openingBalanceCents: number }[],
accounts: { id: number; name: string; openingBalanceCents: number; color?: string | null }[],
transactions: { accountId: number; date: string; amountCents: number }[]
): ChartSeries[] {
const palette = ['#0070f3', '#e5484d', '#46a758', '#ad7f00', '#8e4ec6', '#0091ad', '#e56910'];
const ordered = [...transactions].sort((a, b) => a.date.localeCompare(b.date));
const balances = new Map(accounts.map((account) => [account.id, account.openingBalanceCents]));
const accountPoints = new Map(accounts.map((account) => [account.id, [] as ChartPoint[]]));
@@ -34,7 +42,7 @@ export function balanceSeries(
return [
...accounts.map((account, index) => ({
label: account.name,
color: palette[index % palette.length],
color: accountColor(account, index),
points: accountPoints.get(account.id)!
})),
{ label: 'All accounts', color: 'var(--site-muted)', points: combinedPoints }
@@ -163,7 +171,7 @@ export function wealthProjection(
} else spendable += value;
}
}
if (validInvestmentId !== null && index > 0) {
if (index > 0) {
const growth = Math.round(indexBalance * monthlyGrowth);
invested += growth;
indexBalance += growth;
@@ -194,6 +202,82 @@ export function wealthProjection(
];
}
export type TimelineView = 'total' | 'split' | 'accounts';
/**
* Joins actual history (solid, through today) with the wealth projection (dashed, after
* today) so both read as one continuous line per measure.
*/
export function wealthTimeline(
accounts: {
id: number;
name: string;
kind: string;
openingBalanceCents: number;
color?: string | null;
}[],
actualTransactions: { accountId: number; date: string; amountCents: number }[],
projection: ChartSeries[],
today: string,
view: TimelineView
): ChartSeries[] {
const history = balanceSeries(accounts, actualTransactions);
const accountLines = history.slice(0, accounts.length);
const dates = history.at(-1)!.points.map((point) => point.date);
const sumKind = (investment: boolean) =>
dates.map((date, index) => ({
date,
value: accounts.reduce(
(sum, account, accountIndex) =>
(account.kind === 'investment') === investment
? sum + accountLines[accountIndex].points[index].value
: sum,
0
)
}));
const untilToday = (points: ChartPoint[]) => {
const last = points.at(-1);
return last && last.date < today ? [...points, { date: today, value: last.value }] : points;
};
const join = (actual: ChartPoint[], projected: ChartPoint[]) => {
const solid = untilToday(actual);
const cutoff = solid.at(-1)?.date ?? '';
return [...solid, ...projected.filter((point) => point.date > cutoff)];
};
const [totalProjection, spendableProjection, investedProjection] = projection;
const total: ChartSeries = {
label: 'Total',
color: 'var(--site-text)',
emphasis: true,
dashedFrom: today,
points: join(history.at(-1)!.points, totalProjection?.points ?? [])
};
if (view === 'accounts')
return [
...accountLines
.filter((line) => line.points.some((point) => point.value !== 0))
.map((line) => ({ ...line, points: untilToday(line.points) })),
total
];
if (view === 'split')
return [
total,
{
label: 'Spendable',
color: '#46a758',
dashedFrom: today,
points: join(sumKind(false), spendableProjection?.points ?? [])
},
{
label: 'Invested',
color: '#8e4ec6',
dashedFrom: today,
points: join(sumKind(true), investedProjection?.points ?? [])
}
];
return [total];
}
export function utilityEstimate(
readings: { date: string; reading: string; kind: string }[],
kind: string,