127 lines
3.0 KiB
Vue
127 lines
3.0 KiB
Vue
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<template>
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<canvas ref="chartEl"></canvas>
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</template>
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<script lang="ts" setup>
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import { onMounted, shallowRef } from 'vue';
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import { Chart } from 'chart.js';
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import tinycolor from 'tinycolor2';
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import { defaultStore } from '@/store';
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import { useChartTooltip } from '@/scripts/use-chart-tooltip';
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import { chartVLine } from '@/scripts/chart-vline';
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import { alpha } from '@/scripts/color';
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import { initChart } from '@/scripts/init-chart';
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import * as os from '@/os';
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initChart();
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const chartEl = shallowRef<HTMLCanvasElement>(null);
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const { handler: externalTooltipHandler } = useChartTooltip();
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let chartInstance: Chart;
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const getYYYYMMDD = (date: Date) => {
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const y = date.getFullYear().toString().padStart(2, '0');
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const m = (date.getMonth() + 1).toString().padStart(2, '0');
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const d = date.getDate().toString().padStart(2, '0');
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return `${y}/${m}/${d}`;
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};
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const getDate = (ymd: string) => {
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const [y, m, d] = ymd.split('-').map(x => parseInt(x, 10));
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const date = new Date(y, m + 1, d, 0, 0, 0, 0);
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return date;
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};
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onMounted(async () => {
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let raw = await os.api('retention', { });
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const vLineColor = defaultStore.state.darkMode ? 'rgba(255, 255, 255, 0.2)' : 'rgba(0, 0, 0, 0.2)';
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const accent = tinycolor(getComputedStyle(document.documentElement).getPropertyValue('--accent'));
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const color = accent.toHex();
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chartInstance = new Chart(chartEl.value, {
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type: 'line',
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data: {
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labels: [],
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datasets: raw.map((record, i) => ({
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label: getYYYYMMDD(new Date(record.createdAt)),
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pointRadius: 0,
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borderWidth: 2,
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borderJoinStyle: 'round',
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borderColor: alpha(color, Math.min(1, (raw.length - (i - 1)) / raw.length)),
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fill: false,
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tension: 0.4,
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data: [{
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x: '0',
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y: 100,
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d: getYYYYMMDD(new Date(record.createdAt)),
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}, ...Object.entries(record.data).sort((a, b) => getDate(a[0]) > getDate(b[0]) ? 1 : -1).map(([k, v], i) => ({
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x: (i + 1).toString(),
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y: (v / record.users) * 100,
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d: getYYYYMMDD(new Date(record.createdAt)),
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}))],
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})),
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},
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options: {
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aspectRatio: 2.5,
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layout: {
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padding: {
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left: 0,
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right: 0,
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top: 0,
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bottom: 0,
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},
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},
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scales: {
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x: {
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title: {
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display: true,
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text: 'Days later',
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},
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},
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y: {
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title: {
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display: true,
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text: 'Rate (%)',
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},
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ticks: {
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callback: (value, index, values) => value + '%',
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},
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},
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},
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interaction: {
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intersect: false,
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},
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plugins: {
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legend: {
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display: false,
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},
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tooltip: {
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enabled: false,
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callbacks: {
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title(context) {
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const v = context[0].dataset.data[context[0].dataIndex];
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return `${v.x} days later`;
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},
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label(context) {
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const v = context.dataset.data[context.dataIndex];
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const p = Math.round(v.y) + '%';
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return `${v.d} ${p}`;
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},
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},
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mode: 'index',
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animation: {
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duration: 0,
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},
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external: externalTooltipHandler,
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},
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},
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},
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plugins: [chartVLine(vLineColor)],
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});
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});
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</script>
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