Migrate to Chart.js v3 (#7896)

* wip

* wip

* wip

* wip

* wip

* wip

* wip

* 定期的にresync

* Update overview.vue

* wip

* wip

3 files changed, 690 insertions, 472 deletions

diff --git a/src/client/components/chart.vue b/src/client/components/chart.vue
new file mode 100644
index 0000000000..3599266cb6
--- /dev/null
+++ b/src/client/components/chart.vue
@@ -0,0 +1,628 @@
+<template>
+<canvas ref="chartEl"></canvas>
+</template>
+
+<script lang="ts">
+import { defineComponent, onMounted, ref, watch, PropType } from 'vue';
+import {
+	Chart,
+	ArcElement,
+	LineElement,
+	BarElement,
+	PointElement,
+	BarController,
+	LineController,
+	CategoryScale,
+	LinearScale,
+	TimeScale,
+	Legend,
+	Title,
+	Tooltip,
+	SubTitle,
+	Filler,
+} from 'chart.js';
+import 'chartjs-adapter-date-fns';
+import { enUS } from 'date-fns/locale';
+import zoomPlugin from 'chartjs-plugin-zoom';
+import * as os from '@client/os';
+import { defaultStore } from '@client/store';
+
+Chart.register(
+	ArcElement,
+	LineElement,
+	BarElement,
+	PointElement,
+	BarController,
+	LineController,
+	CategoryScale,
+	LinearScale,
+	TimeScale,
+	Legend,
+	Title,
+	Tooltip,
+	SubTitle,
+	Filler,
+	zoomPlugin,
+);
+
+const sum = (...arr) => arr.reduce((r, a) => r.map((b, i) => a[i] + b));
+const negate = arr => arr.map(x => -x);
+const alpha = (hex, a) => {
+	const result = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(hex)!;
+	const r = parseInt(result[1], 16);
+	const g = parseInt(result[2], 16);
+	const b = parseInt(result[3], 16);
+	return `rgba(${r}, ${g}, ${b}, ${a})`;
+};
+
+const colors = ['#008FFB', '#00E396', '#FEB019', '#FF4560'];
+const getColor = (i) => {
+	return colors[i % colors.length];
+};
+
+export default defineComponent({
+	props: {
+		src: {
+			type: String,
+			required: true,
+		},
+		args: {
+			type: Object,
+			required: false,
+		},
+		limit: {
+			type: Number,
+			required: false,
+			default: 90
+		},
+		span: {
+			type: String as PropType<'hour' | 'day'>,
+			required: true,
+		},
+		detailed: {
+			type: Boolean,
+			required: false,
+			default: false
+		},
+	},
+
+	setup(props) {
+		const now = new Date();
+		let chartInstance: Chart = null;
+		let data: {
+			series: {
+				name: string;
+				type: 'line' | 'area';
+				color?: string;
+				borderDash?: number[];
+				hidden?: boolean;
+				data: {
+					x: number;
+					y: number;
+				}[];
+			}[];
+		} = null;
+
+		const chartEl = ref<HTMLCanvasElement>(null);
+		const fetching = ref(true);
+
+		const getDate = (ago: number) => {
+			const y = now.getFullYear();
+			const m = now.getMonth();
+			const d = now.getDate();
+			const h = now.getHours();
+
+			return props.span === 'day' ? new Date(y, m, d - ago) : new Date(y, m, d, h - ago);
+		};
+
+		const format = (arr) => {
+			return arr.map((v, i) => ({
+				x: getDate(i).getTime(),
+				y: v
+			}));
+		};
+
+		const render = () => {
+			if (chartInstance) {
+				chartInstance.destroy();
+			}
+
+			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');
+
+			chartInstance = new Chart(chartEl.value, {
+				type: 'line',
+				data: {
+					labels: new Array(props.limit).fill(0).map((_, i) => getDate(i).toLocaleString()).slice().reverse(),
+					datasets: data.series.map((x, i) => ({
+						parsing: false,
+						label: x.name,
+						data: x.data.slice().reverse(),
+						pointRadius: 0,
+						tension: 0,
+						borderWidth: 2,
+						borderColor: x.color ? x.color : getColor(i),
+						borderDash: x.borderDash || [],
+						borderJoinStyle: 'round',
+						backgroundColor: alpha(x.color ? x.color : getColor(i), 0.1),
+						fill: x.type === 'area',
+						hidden: !!x.hidden,
+					})),
+				},
+				options: {
+					aspectRatio: 2.5,
+					layout: {
+						padding: {
+							left: 16,
+							right: 16,
+							top: 16,
+							bottom: 8,
+						},
+					},
+					scales: {
+						x: {
+							type: 'time',
+							time: {
+								stepSize: 1,
+								unit: props.span === 'day' ? 'month' : 'day',
+							},
+							grid: {
+								display: props.detailed,
+								color: gridColor,
+								borderColor: 'rgb(0, 0, 0, 0)',
+							},
+							ticks: {
+								display: props.detailed,
+							},
+							adapters: {
+								date: {
+									locale: enUS,
+								},
+							},
+							min: getDate(props.limit).getTime(),
+						},
+						y: {
+							position: 'left',
+							grid: {
+								color: gridColor,
+								borderColor: 'rgb(0, 0, 0, 0)',
+							},
+							ticks: {
+								display: props.detailed,
+							},
+						},
+					},
+					interaction: {
+						intersect: false,
+					},
+					plugins: {
+						legend: {
+							position: 'bottom',
+							labels: {
+								boxWidth: 16,
+							},
+						},
+						tooltip: {
+							mode: 'index',
+							animation: {
+								duration: 0,
+							},
+						},
+						zoom: {
+							pan: {
+								enabled: true,
+							},
+							zoom: {
+								wheel: {
+									enabled: true,
+								},
+								pinch: {
+									enabled: true,
+								},
+								drag: {
+									enabled: false,
+								},
+								mode: 'x',
+							},
+							limits: {
+								x: {
+									min: 'original',
+									max: 'original',
+								},
+								y: {
+									min: 'original',
+									max: 'original',
+								},
+							}
+						},
+					},
+				},
+			});
+		};
+
+		const exportData = () => {
+			// TODO
+		};
+
+		const fetchFederationInstancesChart = async (total: boolean): Promise<typeof data> => {
+			const raw = await os.api('charts/federation', { limit: props.limit, span: props.span });
+			return {
+				series: [{
+					name: 'Instances',
+					type: 'area',
+					data: format(total
+						? raw.instance.total
+						: sum(raw.instance.inc, negate(raw.instance.dec))
+					),
+				}],
+			};
+		};
+
+		const fetchNotesChart = async (type: string): Promise<typeof data> => {
+			const raw = await os.api('charts/notes', { limit: props.limit, span: props.span });
+			return {
+				series: [{
+					name: 'All',
+					type: 'line',
+					borderDash: [5, 5],
+					data: format(type == 'combined'
+						? sum(raw.local.inc, negate(raw.local.dec), raw.remote.inc, negate(raw.remote.dec))
+						: sum(raw[type].inc, negate(raw[type].dec))
+					),
+				}, {
+					name: 'Renotes',
+					type: 'area',
+					data: format(type == 'combined'
+						? sum(raw.local.diffs.renote, raw.remote.diffs.renote)
+						: raw[type].diffs.renote
+					),
+				}, {
+					name: 'Replies',
+					type: 'area',
+					data: format(type == 'combined'
+						? sum(raw.local.diffs.reply, raw.remote.diffs.reply)
+						: raw[type].diffs.reply
+					),
+				}, {
+					name: 'Normal',
+					type: 'area',
+					data: format(type == 'combined'
+						? sum(raw.local.diffs.normal, raw.remote.diffs.normal)
+						: raw[type].diffs.normal
+					),
+				}],
+			};
+		};
+
+		const fetchNotesTotalChart = async (): Promise<typeof data> => {
+			const raw = await os.api('charts/notes', { limit: props.limit, span: props.span });
+			return {
+				series: [{
+					name: 'Combined',
+					type: 'line',
+					data: format(sum(raw.local.total, raw.remote.total)),
+				}, {
+					name: 'Local',
+					type: 'area',
+					data: format(raw.local.total),
+				}, {
+					name: 'Remote',
+					type: 'area',
+					data: format(raw.remote.total),
+				}],
+			};
+		};
+
+		const fetchUsersChart = async (total: boolean): Promise<typeof data> => {
+			const raw = await os.api('charts/users', { limit: props.limit, span: props.span });
+			return {
+				series: [{
+					name: 'Combined',
+					type: 'line',
+					data: format(total
+						? sum(raw.local.total, raw.remote.total)
+						: sum(raw.local.inc, negate(raw.local.dec), raw.remote.inc, negate(raw.remote.dec))
+					),
+				}, {
+					name: 'Local',
+					type: 'area',
+					data: format(total
+						? raw.local.total
+						: sum(raw.local.inc, negate(raw.local.dec))
+					),
+				}, {
+					name: 'Remote',
+					type: 'area',
+					data: format(total
+						? raw.remote.total
+						: sum(raw.remote.inc, negate(raw.remote.dec))
+					),
+				}],
+			};
+		};
+
+		const fetchActiveUsersChart = async (): Promise<typeof data> => {
+			const raw = await os.api('charts/active-users', { limit: props.limit, span: props.span });
+			return {
+				series: [{
+					name: 'Combined',
+					type: 'line',
+					data: format(sum(raw.local.users, raw.remote.users)),
+				}, {
+					name: 'Local',
+					type: 'area',
+					data: format(raw.local.users),
+				}, {
+					name: 'Remote',
+					type: 'area',
+					data: format(raw.remote.users),
+				}],
+			};
+		};
+
+		const fetchDriveChart = async (): Promise<typeof data> => {
+			const raw = await os.api('charts/drive', { limit: props.limit, span: props.span });
+			return {
+				bytes: true,
+				series: [{
+					name: 'All',
+					type: 'line',
+					borderDash: [5, 5],
+					data: format(
+						sum(
+							raw.local.incSize,
+							negate(raw.local.decSize),
+							raw.remote.incSize,
+							negate(raw.remote.decSize)
+						)
+					),
+				}, {
+					name: 'Local +',
+					type: 'area',
+					data: format(raw.local.incSize),
+				}, {
+					name: 'Local -',
+					type: 'area',
+					data: format(negate(raw.local.decSize)),
+				}, {
+					name: 'Remote +',
+					type: 'area',
+					data: format(raw.remote.incSize),
+				}, {
+					name: 'Remote -',
+					type: 'area',
+					data: format(negate(raw.remote.decSize)),
+				}],
+			};
+		};
+
+		const fetchDriveTotalChart = async (): Promise<typeof data> => {
+			const raw = await os.api('charts/drive', { limit: props.limit, span: props.span });
+			return {
+				bytes: true,
+				series: [{
+					name: 'Combined',
+					type: 'line',
+					data: format(sum(raw.local.totalSize, raw.remote.totalSize)),
+				}, {
+					name: 'Local',
+					type: 'area',
+					data: format(raw.local.totalSize),
+				}, {
+					name: 'Remote',
+					type: 'area',
+					data: format(raw.remote.totalSize),
+				}],
+			};
+		};
+
+		const fetchDriveFilesChart = async (): Promise<typeof data> => {
+			const raw = await os.api('charts/drive', { limit: props.limit, span: props.span });
+			return {
+				series: [{
+					name: 'All',
+					type: 'line',
+					borderDash: [5, 5],
+					data: format(
+						sum(
+							raw.local.incCount,
+							negate(raw.local.decCount),
+							raw.remote.incCount,
+							negate(raw.remote.decCount)
+						)
+					),
+				}, {
+					name: 'Local +',
+					type: 'area',
+					data: format(raw.local.incCount),
+				}, {
+					name: 'Local -',
+					type: 'area',
+					data: format(negate(raw.local.decCount)),
+				}, {
+					name: 'Remote +',
+					type: 'area',
+					data: format(raw.remote.incCount),
+				}, {
+					name: 'Remote -',
+					type: 'area',
+					data: format(negate(raw.remote.decCount)),
+				}],
+			};
+		};
+
+		const fetchDriveFilesTotalChart = async (): Promise<typeof data> => {
+			const raw = await os.api('charts/drive', { limit: props.limit, span: props.span });
+			return {
+				series: [{
+					name: 'Combined',
+					type: 'line',
+					data: format(sum(raw.local.totalCount, raw.remote.totalCount)),
+				}, {
+					name: 'Local',
+					type: 'area',
+					data: format(raw.local.totalCount),
+				}, {
+					name: 'Remote',
+					type: 'area',
+					data: format(raw.remote.totalCount),
+				}],
+			};
+		};
+
+		const fetchInstanceRequestsChart = async (): Promise<typeof data> => {
+			const raw = await os.api('charts/instance', { host: props.args.host, limit: props.limit, span: props.span });
+			return {
+				series: [{
+					name: 'In',
+					type: 'area',
+					color: '#008FFB',
+					data: format(raw.requests.received)
+				}, {
+					name: 'Out (succ)',
+					type: 'area',
+					color: '#00E396',
+					data: format(raw.requests.succeeded)
+				}, {
+					name: 'Out (fail)',
+					type: 'area',
+					color: '#FEB019',
+					data: format(raw.requests.failed)
+				}]
+			};
+		};
+
+		const fetchInstanceUsersChart = async (total: boolean): Promise<typeof data> => {
+			const raw = await os.api('charts/instance', { host: props.args.host, limit: props.limit, span: props.span });
+			return {
+				series: [{
+					name: 'Users',
+					type: 'area',
+					color: '#008FFB',
+					data: format(total
+						? raw.users.total
+						: sum(raw.users.inc, negate(raw.users.dec))
+					)
+				}]
+			};
+		};
+
+		const fetchInstanceNotesChart = async (total: boolean): Promise<typeof data> => {
+			const raw = await os.api('charts/instance', { host: props.args.host, limit: props.limit, span: props.span });
+			return {
+				series: [{
+					name: 'Notes',
+					type: 'area',
+					color: '#008FFB',
+					data: format(total
+						? raw.notes.total
+						: sum(raw.notes.inc, negate(raw.notes.dec))
+					)
+				}]
+			};
+		};
+
+		const fetchInstanceFfChart = async (total: boolean): Promise<typeof data> => {
+			const raw = await os.api('charts/instance', { host: props.args.host, limit: props.limit, span: props.span });
+			return {
+				series: [{
+					name: 'Following',
+					type: 'area',
+					color: '#008FFB',
+					data: format(total
+						? raw.following.total
+						: sum(raw.following.inc, negate(raw.following.dec))
+					)
+				}, {
+					name: 'Followers',
+					type: 'area',
+					color: '#00E396',
+					data: format(total
+						? raw.followers.total
+						: sum(raw.followers.inc, negate(raw.followers.dec))
+					)
+				}]
+			};
+		};
+
+		const fetchInstanceDriveUsageChart = async (total: boolean): Promise<typeof data> => {
+			const raw = await os.api('charts/instance', { host: props.args.host, limit: props.limit, span: props.span });
+			return {
+				bytes: true,
+				series: [{
+					name: 'Drive usage',
+					type: 'area',
+					color: '#008FFB',
+					data: format(total
+						? raw.drive.totalUsage
+						: sum(raw.drive.incUsage, negate(raw.drive.decUsage))
+					)
+				}]
+			};
+		};
+
+		const fetchInstanceDriveFilesChart = async (total: boolean): Promise<typeof data> => {
+			const raw = await os.api('charts/instance', { host: props.args.host, limit: props.limit, span: props.span });
+			return {
+				series: [{
+					name: 'Drive files',
+					type: 'area',
+					color: '#008FFB',
+					data: format(total
+						? raw.drive.totalFiles
+						: sum(raw.drive.incFiles, negate(raw.drive.decFiles))
+					)
+				}]
+			};
+		};
+
+		const fetchAndRender = async () => {
+			const fetchData = () => {
+				switch (props.src) {
+					case 'federation-instances': return fetchFederationInstancesChart(false);
+					case 'federation-instances-total': return fetchFederationInstancesChart(true);
+					case 'users': return fetchUsersChart(false);
+					case 'users-total': return fetchUsersChart(true);
+					case 'active-users': return fetchActiveUsersChart();
+					case 'notes': return fetchNotesChart('combined');
+					case 'local-notes': return fetchNotesChart('local');
+					case 'remote-notes': return fetchNotesChart('remote');
+					case 'notes-total': return fetchNotesTotalChart();
+					case 'drive': return fetchDriveChart();
+					case 'drive-total': return fetchDriveTotalChart();
+					case 'drive-files': return fetchDriveFilesChart();
+					case 'drive-files-total': return fetchDriveFilesTotalChart();
+					
+					case 'instances-requests': return fetchInstanceRequestsChart();
+					case 'instances-users': return fetchInstanceUsersChart(false);
+					case 'instances-users-total': return fetchInstanceUsersChart(true);
+					case 'instances-notes': return fetchInstanceNotesChart(false);
+					case 'instances-notes-total': return fetchInstanceNotesChart(true);
+					case 'instances-ff': return fetchInstanceFfChart(false);
+					case 'instances-ff-total': return fetchInstanceFfChart(true);
+					case 'instances-drive-usage': return fetchInstanceDriveUsageChart(false);
+					case 'instances-drive-usage-total': return fetchInstanceDriveUsageChart(true);
+					case 'instances-drive-files': return fetchInstanceDriveFilesChart(false);
+					case 'instances-drive-files-total': return fetchInstanceDriveFilesChart(true);
+				}
+			};
+			fetching.value = true;
+			data = await fetchData();
+			fetching.value = false;
+			render();
+		};
+
+		watch(() => [props.src, props.span], fetchAndRender);
+
+		onMounted(() => {
+			fetchAndRender();
+		});
+
+		return {
+			chartEl,
+		};
+	},
+});
+</script>
diff --git a/src/client/components/instance-stats.vue b/src/client/components/instance-stats.vue
index 5e7c71ea65..fd0b75609f 100644
--- a/src/client/components/instance-stats.vue
+++ b/src/client/components/instance-stats.vue
@@ -24,35 +24,26 @@
 				<option value="drive-total">{{ $ts._charts.storageUsageTotal }}</option>
 			</optgroup>
 		</MkSelect>
-		<MkSelect v-model="chartSpan" style="margin: 0;">
+		<MkSelect v-model="chartSpan" style="margin: 0 0 0 10px;">
 			<option value="hour">{{ $ts.perHour }}</option>
 			<option value="day">{{ $ts.perDay }}</option>
 		</MkSelect>
 	</div>
-	<canvas ref="chart"></canvas>
+	<MkChart :src="chartSrc" :span="chartSpan" :limit="chartLimit" :detailed="detailed"></MkChart>
 </div>
 </template>
 
 <script lang="ts">
-import { defineComponent, markRaw } from 'vue';
-import Chart from 'chart.js';
-import MkSelect from './form/select.vue';
-import number from '@client/filters/number';
-
-const sum = (...arr) => arr.reduce((r, a) => r.map((b, i) => a[i] + b));
-const negate = arr => arr.map(x => -x);
-const alpha = (hex, a) => {
-	const result = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(hex)!;
-	const r = parseInt(result[1], 16);
-	const g = parseInt(result[2], 16);
-	const b = parseInt(result[3], 16);
-	return `rgba(${r}, ${g}, ${b}, ${a})`;
-};
+import { defineComponent, onMounted, ref, watch } from 'vue';
+import MkSelect from '@client/components/form/select.vue';
+import MkChart from '@client/components/chart.vue';
 import * as os from '@client/os';
+import { defaultStore } from '@client/store';
 
 export default defineComponent({
 	components: {
-		MkSelect
+		MkSelect,
+		MkChart,
 	},
 
 	props: {
@@ -68,463 +59,15 @@ export default defineComponent({
 		},
 	},
 
-	data() {
-		return {
-			notesLocalWoW: 0,
-			notesLocalDoD: 0,
-			notesRemoteWoW: 0,
-			notesRemoteDoD: 0,
-			usersLocalWoW: 0,
-			usersLocalDoD: 0,
-			usersRemoteWoW: 0,
-			usersRemoteDoD: 0,
-			now: null,
-			chart: null,
-			chartInstance: null,
-			chartSrc: 'notes',
-			chartSpan: 'hour',
-		}
-	},
-
-	computed: {
-		data(): any {
-			if (this.chart == null) return null;
-			switch (this.chartSrc) {
-				case 'federation-instances': return this.federationInstancesChart(false);
-				case 'federation-instances-total': return this.federationInstancesChart(true);
-				case 'users': return this.usersChart(false);
-				case 'users-total': return this.usersChart(true);
-				case 'active-users': return this.activeUsersChart();
-				case 'notes': return this.notesChart('combined');
-				case 'local-notes': return this.notesChart('local');
-				case 'remote-notes': return this.notesChart('remote');
-				case 'notes-total': return this.notesTotalChart();
-				case 'drive': return this.driveChart();
-				case 'drive-total': return this.driveTotalChart();
-				case 'drive-files': return this.driveFilesChart();
-				case 'drive-files-total': return this.driveFilesTotalChart();
-			}
-		},
-
-		stats(): any[] {
-			const stats =
-				this.chartSpan == 'day' ? this.chart.perDay :
-				this.chartSpan == 'hour' ? this.chart.perHour :
-				null;
-
-			return stats;
-		}
-	},
-
-	watch: {
-		chartSrc() {
-			this.renderChart();
-		},
-
-		chartSpan() {
-			this.renderChart();
-		}
-	},
-
-	async created() {
-		this.now = new Date();
+	setup() {
+		const chartSpan = ref<'hour' | 'day'>('hour');
+		const chartSrc = ref('notes');
 
-		this.fetchChart();
+		return {
+			chartSrc,
+			chartSpan,
+		};
 	},
-
-	methods: {
-		async fetchChart() {
-			const [perHour, perDay] = await Promise.all([Promise.all([
-				os.api('charts/federation', { limit: this.chartLimit, span: 'hour' }),
-				os.api('charts/users', { limit: this.chartLimit, span: 'hour' }),
-				os.api('charts/active-users', { limit: this.chartLimit, span: 'hour' }),
-				os.api('charts/notes', { limit: this.chartLimit, span: 'hour' }),
-				os.api('charts/drive', { limit: this.chartLimit, span: 'hour' }),
-			]), Promise.all([
-				os.api('charts/federation', { limit: this.chartLimit, span: 'day' }),
-				os.api('charts/users', { limit: this.chartLimit, span: 'day' }),
-				os.api('charts/active-users', { limit: this.chartLimit, span: 'day' }),
-				os.api('charts/notes', { limit: this.chartLimit, span: 'day' }),
-				os.api('charts/drive', { limit: this.chartLimit, span: 'day' }),
-			])]);
-
-			const chart = {
-				perHour: {
-					federation: perHour[0],
-					users: perHour[1],
-					activeUsers: perHour[2],
-					notes: perHour[3],
-					drive: perHour[4],
-				},
-				perDay: {
-					federation: perDay[0],
-					users: perDay[1],
-					activeUsers: perDay[2],
-					notes: perDay[3],
-					drive: perDay[4],
-				}
-			};
-
-			this.chart = chart;
-
-			this.renderChart();
-		},
-
-		renderChart() {
-			if (this.chartInstance) {
-				this.chartInstance.destroy();
-			}
-
-			// TODO: var(--panel)の色が暗いか明るいかで判定する
-			const gridColor = this.$store.state.darkMode ? 'rgba(255, 255, 255, 0.1)' : 'rgba(0, 0, 0, 0.1)';
-
-			Chart.defaults.global.defaultFontColor = getComputedStyle(document.documentElement).getPropertyValue('--fg');
-			this.chartInstance = markRaw(new Chart(this.$refs.chart, {
-				type: 'line',
-				data: {
-					labels: new Array(this.chartLimit).fill(0).map((_, i) => this.getDate(i).toLocaleString()).slice().reverse(),
-					datasets: this.data.series.map(x => ({
-						label: x.name,
-						data: x.data.slice().reverse(),
-						pointRadius: 0,
-						lineTension: 0,
-						borderWidth: 2,
-						borderColor: x.color,
-						borderDash: x.borderDash || [],
-						backgroundColor: alpha(x.color, 0.1),
-						fill: x.fill == null ? true : x.fill,
-						hidden: !!x.hidden
-					}))
-				},
-				options: {
-					aspectRatio: 2.5,
-					layout: {
-						padding: {
-							left: 16,
-							right: 16,
-							top: 16,
-							bottom: 8
-						}
-					},
-					legend: {
-						position: 'bottom',
-						labels: {
-							boxWidth: 16,
-						}
-					},
-					scales: {
-						xAxes: [{
-							type: 'time',
-							time: {
-								stepSize: 1,
-								unit: this.chartSpan == 'day' ? 'month' : 'day',
-							},
-							gridLines: {
-								display: this.detailed,
-								color: gridColor,
-								zeroLineColor: gridColor,
-							},
-							ticks: {
-								display: this.detailed
-							}
-						}],
-						yAxes: [{
-							position: 'left',
-							gridLines: {
-								color: gridColor,
-								zeroLineColor: gridColor,
-							},
-							ticks: {
-								display: this.detailed
-							}
-						}]
-					},
-					tooltips: {
-						intersect: false,
-						mode: 'index',
-					}
-				}
-			}));
-		},
-
-		getDate(ago: number) {
-			const y = this.now.getFullYear();
-			const m = this.now.getMonth();
-			const d = this.now.getDate();
-			const h = this.now.getHours();
-
-			return this.chartSpan == 'day' ? new Date(y, m, d - ago) : new Date(y, m, d, h - ago);
-		},
-
-		format(arr) {
-			const now = Date.now();
-			return arr.map((v, i) => ({
-				x: new Date(now - ((this.chartSpan == 'day' ? 86400000 :3600000 ) * i)),
-				y: v
-			}));
-		},
-
-		federationInstancesChart(total: boolean): any {
-			return {
-				series: [{
-					name: 'Instances',
-					color: '#008FFB',
-					data: this.format(total
-						? this.stats.federation.instance.total
-						: sum(this.stats.federation.instance.inc, negate(this.stats.federation.instance.dec))
-					)
-				}]
-			};
-		},
-
-		notesChart(type: string): any {
-			return {
-				series: [{
-					name: 'All',
-					type: 'line',
-					color: '#008FFB',
-					borderDash: [5, 5],
-					fill: false,
-					data: this.format(type == 'combined'
-						? sum(this.stats.notes.local.inc, negate(this.stats.notes.local.dec), this.stats.notes.remote.inc, negate(this.stats.notes.remote.dec))
-						: sum(this.stats.notes[type].inc, negate(this.stats.notes[type].dec))
-					)
-				}, {
-					name: 'Renotes',
-					type: 'area',
-					color: '#00E396',
-					data: this.format(type == 'combined'
-						? sum(this.stats.notes.local.diffs.renote, this.stats.notes.remote.diffs.renote)
-						: this.stats.notes[type].diffs.renote
-					)
-				}, {
-					name: 'Replies',
-					type: 'area',
-					color: '#FEB019',
-					data: this.format(type == 'combined'
-						? sum(this.stats.notes.local.diffs.reply, this.stats.notes.remote.diffs.reply)
-						: this.stats.notes[type].diffs.reply
-					)
-				}, {
-					name: 'Normal',
-					type: 'area',
-					color: '#FF4560',
-					data: this.format(type == 'combined'
-						? sum(this.stats.notes.local.diffs.normal, this.stats.notes.remote.diffs.normal)
-						: this.stats.notes[type].diffs.normal
-					)
-				}]
-			};
-		},
-
-		notesTotalChart(): any {
-			return {
-				series: [{
-					name: 'Combined',
-					type: 'line',
-					color: '#008FFB',
-					data: this.format(sum(this.stats.notes.local.total, this.stats.notes.remote.total))
-				}, {
-					name: 'Local',
-					type: 'area',
-					color: '#008FFB',
-					hidden: true,
-					data: this.format(this.stats.notes.local.total)
-				}, {
-					name: 'Remote',
-					type: 'area',
-					color: '#008FFB',
-					hidden: true,
-					data: this.format(this.stats.notes.remote.total)
-				}]
-			};
-		},
-
-		usersChart(total: boolean): any {
-			return {
-				series: [{
-					name: 'Combined',
-					type: 'line',
-					color: '#008FFB',
-					data: this.format(total
-						? sum(this.stats.users.local.total, this.stats.users.remote.total)
-						: sum(this.stats.users.local.inc, negate(this.stats.users.local.dec), this.stats.users.remote.inc, negate(this.stats.users.remote.dec))
-					)
-				}, {
-					name: 'Local',
-					type: 'area',
-					color: '#008FFB',
-					hidden: true,
-					data: this.format(total
-						? this.stats.users.local.total
-						: sum(this.stats.users.local.inc, negate(this.stats.users.local.dec))
-					)
-				}, {
-					name: 'Remote',
-					type: 'area',
-					color: '#008FFB',
-					hidden: true,
-					data: this.format(total
-						? this.stats.users.remote.total
-						: sum(this.stats.users.remote.inc, negate(this.stats.users.remote.dec))
-					)
-				}]
-			};
-		},
-
-		activeUsersChart(): any {
-			return {
-				series: [{
-					name: 'Combined',
-					type: 'line',
-					color: '#008FFB',
-					data: this.format(sum(this.stats.activeUsers.local.count, this.stats.activeUsers.remote.count))
-				}, {
-					name: 'Local',
-					type: 'area',
-					color: '#008FFB',
-					hidden: true,
-					data: this.format(this.stats.activeUsers.local.count)
-				}, {
-					name: 'Remote',
-					type: 'area',
-					color: '#008FFB',
-					hidden: true,
-					data: this.format(this.stats.activeUsers.remote.count)
-				}]
-			};
-		},
-
-		driveChart(): any {
-			return {
-				bytes: true,
-				series: [{
-					name: 'All',
-					type: 'line',
-					color: '#09d8e2',
-					borderDash: [5, 5],
-					fill: false,
-					data: this.format(
-						sum(
-							this.stats.drive.local.incSize,
-							negate(this.stats.drive.local.decSize),
-							this.stats.drive.remote.incSize,
-							negate(this.stats.drive.remote.decSize)
-						)
-					)
-				}, {
-					name: 'Local +',
-					type: 'area',
-					color: '#008FFB',
-					data: this.format(this.stats.drive.local.incSize)
-				}, {
-					name: 'Local -',
-					type: 'area',
-					color: '#FF4560',
-					data: this.format(negate(this.stats.drive.local.decSize))
-				}, {
-					name: 'Remote +',
-					type: 'area',
-					color: '#00E396',
-					data: this.format(this.stats.drive.remote.incSize)
-				}, {
-					name: 'Remote -',
-					type: 'area',
-					color: '#FEB019',
-					data: this.format(negate(this.stats.drive.remote.decSize))
-				}]
-			};
-		},
-
-		driveTotalChart(): any {
-			return {
-				bytes: true,
-				series: [{
-					name: 'Combined',
-					type: 'line',
-					color: '#008FFB',
-					data: this.format(sum(this.stats.drive.local.totalSize, this.stats.drive.remote.totalSize))
-				}, {
-					name: 'Local',
-					type: 'area',
-					color: '#008FFB',
-					hidden: true,
-					data: this.format(this.stats.drive.local.totalSize)
-				}, {
-					name: 'Remote',
-					type: 'area',
-					color: '#008FFB',
-					hidden: true,
-					data: this.format(this.stats.drive.remote.totalSize)
-				}]
-			};
-		},
-
-		driveFilesChart(): any {
-			return {
-				series: [{
-					name: 'All',
-					type: 'line',
-					color: '#09d8e2',
-					borderDash: [5, 5],
-					fill: false,
-					data: this.format(
-						sum(
-							this.stats.drive.local.incCount,
-							negate(this.stats.drive.local.decCount),
-							this.stats.drive.remote.incCount,
-							negate(this.stats.drive.remote.decCount)
-						)
-					)
-				}, {
-					name: 'Local +',
-					type: 'area',
-					color: '#008FFB',
-					data: this.format(this.stats.drive.local.incCount)
-				}, {
-					name: 'Local -',
-					type: 'area',
-					color: '#FF4560',
-					data: this.format(negate(this.stats.drive.local.decCount))
-				}, {
-					name: 'Remote +',
-					type: 'area',
-					color: '#00E396',
-					data: this.format(this.stats.drive.remote.incCount)
-				}, {
-					name: 'Remote -',
-					type: 'area',
-					color: '#FEB019',
-					data: this.format(negate(this.stats.drive.remote.decCount))
-				}]
-			};
-		},
-
-		driveFilesTotalChart(): any {
-			return {
-				series: [{
-					name: 'Combined',
-					type: 'line',
-					color: '#008FFB',
-					data: this.format(sum(this.stats.drive.local.totalCount, this.stats.drive.remote.totalCount))
-				}, {
-					name: 'Local',
-					type: 'area',
-					color: '#008FFB',
-					hidden: true,
-					data: this.format(this.stats.drive.local.totalCount)
-				}, {
-					name: 'Remote',
-					type: 'area',
-					color: '#008FFB',
-					hidden: true,
-					data: this.format(this.stats.drive.remote.totalCount)
-				}]
-			};
-		},
-
-		number
-	}
 });
 </script>
 
diff --git a/src/client/components/number-diff.vue b/src/client/components/number-diff.vue
new file mode 100644
index 0000000000..ba7e6964de
--- /dev/null
+++ b/src/client/components/number-diff.vue
@@ -0,0 +1,47 @@
+<template>
+<span class="ceaaebcd" :class="{ isPlus, isMinus, isZero }">
+	<slot name="before"></slot>{{ isPlus ? '+' : isMinus ? '-' : '' }}{{ number(value) }}<slot name="after"></slot>
+</span>
+</template>
+
+<script lang="ts">
+import { computed, defineComponent } from 'vue';
+import number from '@client/filters/number';
+
+export default defineComponent({
+	props: {
+		value: {
+			type: Number,
+			required: true
+		},
+	},
+
+	setup(props) {
+		const isPlus = computed(() => props.value > 0);
+		const isMinus = computed(() => props.value < 0);
+		const isZero = computed(() => props.value === 0);
+		return {
+			isPlus,
+			isMinus,
+			isZero,
+			number,
+		};
+	}
+});
+</script>
+
+<style lang="scss" scoped>
+.ceaaebcd {
+	&.isPlus {
+		color: var(--success);
+	}
+
+	&.isMinus {
+		color: var(--error);
+	}
+
+	&.isZero {
+		opacity: 0.5;
+	}
+}
+</style>