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<!--
SPDX-FileCopyrightText: syuilo and misskey-project
SPDX-License-Identifier: AGPL-3.0-only
-->
<template>
<div class="lcfyofjk">
<svg :viewBox="`0 0 ${ viewBoxX } ${ viewBoxY }`">
<defs>
<linearGradient :id="cpuGradientId" x1="0" x2="0" y1="1" y2="0">
<stop offset="0%" stop-color="hsl(180, 80%, 70%)"></stop>
<stop offset="100%" stop-color="hsl(0, 80%, 70%)"></stop>
</linearGradient>
<mask :id="cpuMaskId" x="0" y="0" :width="viewBoxX" :height="viewBoxY">
<polygon
:points="cpuPolygonPoints"
fill="#fff"
fill-opacity="0.5"
/>
<polyline
:points="cpuPolylinePoints"
fill="none"
stroke="#fff"
stroke-width="1"
/>
<circle
:cx="cpuHeadX"
:cy="cpuHeadY"
r="1.5"
fill="#fff"
/>
</mask>
</defs>
<rect
x="-2" y="-2"
:width="viewBoxX + 4" :height="viewBoxY + 4"
:style="{ stroke: 'none', fill: `url(#${ cpuGradientId })`, mask: `url(#${ cpuMaskId })` }"
/>
<text x="1" y="5">CPU <tspan>{{ cpuP }}%</tspan></text>
</svg>
<svg :viewBox="`0 0 ${ viewBoxX } ${ viewBoxY }`">
<defs>
<linearGradient :id="memGradientId" x1="0" x2="0" y1="1" y2="0">
<stop offset="0%" stop-color="hsl(180, 80%, 70%)"></stop>
<stop offset="100%" stop-color="hsl(0, 80%, 70%)"></stop>
</linearGradient>
<mask :id="memMaskId" x="0" y="0" :width="viewBoxX" :height="viewBoxY">
<polygon
:points="memPolygonPoints"
fill="#fff"
fill-opacity="0.5"
/>
<polyline
:points="memPolylinePoints"
fill="none"
stroke="#fff"
stroke-width="1"
/>
<circle
:cx="memHeadX"
:cy="memHeadY"
r="1.5"
fill="#fff"
/>
</mask>
</defs>
<rect
x="-2" y="-2"
:width="viewBoxX + 4" :height="viewBoxY + 4"
:style="{ stroke: 'none', fill: `url(#${ memGradientId })`, mask: `url(#${ memMaskId })` }"
/>
<text x="1" y="5">MEM <tspan>{{ memP }}%</tspan></text>
</svg>
</div>
</template>
<script lang="ts" setup>
import { onMounted, onBeforeUnmount, ref } from 'vue';
import * as Misskey from 'misskey-js';
import { v4 as uuid } from 'uuid';
const props = defineProps<{
connection: Misskey.ChannelConnection<Misskey.Channels['serverStats']>,
meta: Misskey.entities.ServerInfoResponse
}>();
const viewBoxX = ref<number>(50);
const viewBoxY = ref<number>(30);
const stats = ref<Misskey.entities.ServerStats[]>([]);
const cpuGradientId = uuid();
const cpuMaskId = uuid();
const memGradientId = uuid();
const memMaskId = uuid();
const cpuPolylinePoints = ref<string>('');
const memPolylinePoints = ref<string>('');
const cpuPolygonPoints = ref<string>('');
const memPolygonPoints = ref<string>('');
const cpuHeadX = ref<number>();
const cpuHeadY = ref<number>();
const memHeadX = ref<number>();
const memHeadY = ref<number>();
const cpuP = ref<string>('');
const memP = ref<string>('');
onMounted(() => {
props.connection.on('stats', onStats);
props.connection.on('statsLog', onStatsLog);
props.connection.send('requestLog', {
id: Math.random().toString().substring(2, 10),
length: 50,
});
});
onBeforeUnmount(() => {
props.connection.off('stats', onStats);
props.connection.off('statsLog', onStatsLog);
});
function onStats(connStats: Misskey.entities.ServerStats) {
stats.value.push(connStats);
if (stats.value.length > 50) stats.value.shift();
let cpuPolylinePointsStats = stats.value.map((s, i) => [viewBoxX.value - ((stats.value.length - 1) - i), (1 - s.cpu) * viewBoxY.value]);
let memPolylinePointsStats = stats.value.map((s, i) => [viewBoxX.value - ((stats.value.length - 1) - i), (1 - (s.mem.active / props.meta.mem.total)) * viewBoxY.value]);
cpuPolylinePoints.value = cpuPolylinePointsStats.map(xy => `${xy[0]},${xy[1]}`).join(' ');
memPolylinePoints.value = memPolylinePointsStats.map(xy => `${xy[0]},${xy[1]}`).join(' ');
cpuPolygonPoints.value = `${viewBoxX.value - (stats.value.length - 1)},${viewBoxY.value} ${cpuPolylinePoints.value} ${viewBoxX.value},${viewBoxY.value}`;
memPolygonPoints.value = `${viewBoxX.value - (stats.value.length - 1)},${viewBoxY.value} ${memPolylinePoints.value} ${viewBoxX.value},${viewBoxY.value}`;
cpuHeadX.value = cpuPolylinePointsStats.at(-1)![0];
cpuHeadY.value = cpuPolylinePointsStats.at(-1)![1];
memHeadX.value = memPolylinePointsStats.at(-1)![0];
memHeadY.value = memPolylinePointsStats.at(-1)![1];
cpuP.value = (connStats.cpu * 100).toFixed(0);
memP.value = (connStats.mem.active / props.meta.mem.total * 100).toFixed(0);
}
function onStatsLog(statsLog: Misskey.entities.ServerStatsLog) {
for (const revStats of statsLog.toReversed()) {
onStats(revStats);
}
}
</script>
<style lang="scss" scoped>
.lcfyofjk {
display: flex;
> svg {
display: block;
padding: 10px;
width: 50%;
&:first-child {
padding-right: 5px;
}
&:last-child {
padding-left: 5px;
}
> text {
font-size: 4.5px;
fill: currentColor;
> tspan {
opacity: 0.5;
}
}
}
}
</style>
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