<template> <div ref="rootEl"> <MkLoading v-if="fetching"/> <div v-else> <canvas ref="chartEl"></canvas> </div> </div> </template> <script lang="ts" setup> import { markRaw, version as vueVersion, onMounted, onBeforeUnmount, nextTick } from 'vue'; import { Chart, ArcElement, LineElement, BarElement, PointElement, BarController, LineController, CategoryScale, LinearScale, TimeScale, Legend, Title, Tooltip, SubTitle, Filler, } from 'chart.js'; import { enUS } from 'date-fns/locale'; import tinycolor from 'tinycolor2'; import * as os from '@/os'; import 'chartjs-adapter-date-fns'; import { defaultStore } from '@/store'; import { useChartTooltip } from '@/scripts/use-chart-tooltip'; import { MatrixController, MatrixElement } from 'chartjs-chart-matrix'; import { chartVLine } from '@/scripts/chart-vline'; import { alpha } from '@/scripts/color'; Chart.register( ArcElement, LineElement, BarElement, PointElement, BarController, LineController, CategoryScale, LinearScale, TimeScale, Legend, Title, Tooltip, SubTitle, Filler, MatrixController, MatrixElement, ); const rootEl = $ref<HTMLDivElement>(null); const chartEl = $ref<HTMLCanvasElement>(null); const now = new Date(); let chartInstance: Chart = null; let fetching = $ref(true); const { handler: externalTooltipHandler } = useChartTooltip({ position: 'middle', }); async function renderChart() { if (chartInstance) { chartInstance.destroy(); } const wide = rootEl.offsetWidth > 600; const narrow = rootEl.offsetWidth < 400; const maxDays = wide ? 20 : narrow ? 10 : 15; const raw = await os.api('retention', { }); const data = []; for (const record of raw) { let i = 0; for (const date of Object.keys(record.data).sort((a, b) => new Date(a).getTime() - new Date(b).getTime())) { data.push({ x: i, y: record.createdAt, v: record.data[date], }); i++; } } console.log(data); fetching = false; await nextTick(); const gridColor = defaultStore.state.darkMode ? 'rgba(255, 255, 255, 0.1)' : 'rgba(0, 0, 0, 0.1)'; // フォントカラー Chart.defaults.color = getComputedStyle(document.documentElement).getPropertyValue('--fg'); const color = defaultStore.state.darkMode ? '#b4e900' : '#86b300'; // 視覚上の分かりやすさのため上から最も大きい3つの値の平均を最大値とする //const max = raw.readWrite.slice().sort((a, b) => b - a).slice(0, 3).reduce((a, b) => a + b, 0) / 3; const max = 4; const marginEachCell = 6; chartInstance = new Chart(chartEl, { type: 'matrix', data: { datasets: [{ label: 'Active', data: data, pointRadius: 0, borderWidth: 0, borderJoinStyle: 'round', borderRadius: 3, backgroundColor(c) { const value = c.dataset.data[c.dataIndex].v; const a = value / max; return alpha(color, a); }, fill: true, width(c) { const a = c.chart.chartArea ?? {}; return (a.right - a.left) / maxDays - marginEachCell; }, height(c) { const a = c.chart.chartArea ?? {}; return (a.bottom - a.top) / maxDays - (marginEachCell / 1.5); }, }], }, options: { aspectRatio: wide ? 2 : narrow ? 2 : 2, layout: { padding: { left: 8, right: 0, top: 0, bottom: 0, }, }, scales: { x: { position: 'top', suggestedMax: maxDays, grid: { display: false, color: gridColor, borderColor: 'rgb(0, 0, 0, 0)', }, ticks: { display: true, padding: 0, maxRotation: 0, autoSkipPadding: 0, autoSkip: false, callback: (value, index, values) => value + 1, }, }, y: { type: 'time', min: new Date(new Date().getFullYear(), new Date().getMonth(), new Date().getDate() - maxDays), offset: true, reverse: true, position: 'left', time: { unit: 'day', round: 'day', }, grid: { display: false, color: gridColor, borderColor: 'rgb(0, 0, 0, 0)', }, ticks: { maxRotation: 0, autoSkip: true, padding: 1, font: { size: 9, }, }, }, }, animation: false, plugins: { legend: { display: false, }, tooltip: { enabled: false, callbacks: { title(context) { const v = context[0].dataset.data[context[0].dataIndex]; return v.d; }, label(context) { const v = context.dataset.data[context.dataIndex]; return ['Active: ' + v.v]; }, }, //mode: 'index', animation: { duration: 0, }, external: externalTooltipHandler, }, }, }, }); } onMounted(async () => { renderChart(); }); </script>