open-consul/ui/packages/consul-ui/app/components/topology-metrics/index.js

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import Component from '@glimmer/component';
import { tracked } from '@glimmer/tracking';
import { action } from '@ember/object';
export default class TopologyMetrics extends Component {
// =attributes
@tracked centerDimensions;
@tracked downView;
@tracked downLines = [];
@tracked upView;
@tracked upLines = [];
@tracked noMetricsReason;
// =methods
drawDownLines(items) {
const order = ['allow', 'deny'];
const dest = {
x: this.centerDimensions.x - 7,
y: this.centerDimensions.y + this.centerDimensions.height / 2,
};
return items
.map(item => {
const dimensions = item.getBoundingClientRect();
const src = {
x: dimensions.x + dimensions.width,
y: dimensions.y + dimensions.height / 2,
};
return {
id: item.id,
permission: item.getAttribute('data-permission'),
dest: dest,
src: src,
};
})
.sort((a, b) => {
return order.indexOf(a.permission) - order.indexOf(b.permission);
});
}
drawUpLines(items) {
const order = ['allow', 'deny'];
const src = {
x: this.centerDimensions.x + 5.5,
y: this.centerDimensions.y + this.centerDimensions.height / 2,
};
return items
.map(item => {
const dimensions = item.getBoundingClientRect();
const dest = {
x: dimensions.x - dimensions.width - 25,
y: dimensions.y + dimensions.height / 2,
};
return {
id: item.id,
permission: item.getAttribute('data-permission'),
dest: dest,
src: src,
};
})
.sort((a, b) => {
return order.indexOf(a.permission) - order.indexOf(b.permission);
});
}
// =actions
@action
calculate() {
if (this.args.isRemoteDC) {
this.noMetricsReason = 'Unable to fetch metrics for a remote datacenter';
} else if (this.args.service.Service.Kind === 'ingress-gateway') {
this.noMetricsReason = 'Unable to fetch metrics for a ingress gateway';
} else {
this.noMetricsReason = null;
}
// Calculate viewBox dimensions
this.downView = document.querySelector('#downstream-lines').getBoundingClientRect();
this.upView = document.querySelector('#upstream-lines').getBoundingClientRect();
// Get Card elements positions
const downCards = [...document.querySelectorAll('#downstream-container .card')];
const grafanaCard = document.querySelector('.metrics-header');
const upCards = [...document.querySelectorAll('#upstream-column .card')];
// Set center positioning points
this.centerDimensions = grafanaCard.getBoundingClientRect();
// Set Downstream Cards Positioning points
this.downLines = this.drawDownLines(downCards);
// Set Upstream Cards Positioning points
this.upLines = this.drawUpLines(upCards);
}
}