mempool/frontend/src/app/components/hashrate-chart/hashrate-chart.component.ts
2022-11-28 16:53:17 +09:00

451 lines
15 KiB
TypeScript

import { ChangeDetectionStrategy, Component, Inject, Input, LOCALE_ID, OnInit, HostBinding } from '@angular/core';
import { EChartsOption, graphic } from 'echarts';
import { Observable } from 'rxjs';
import { map, share, startWith, switchMap, tap } from 'rxjs/operators';
import { ApiService } from '../../services/api.service';
import { SeoService } from '../../services/seo.service';
import { formatNumber } from '@angular/common';
import { UntypedFormBuilder, UntypedFormGroup } from '@angular/forms';
import { selectPowerOfTen } from '../../bitcoin.utils';
import { StorageService } from '../../services/storage.service';
import { MiningService } from '../../services/mining.service';
import { download } from '../../shared/graphs.utils';
import { ActivatedRoute } from '@angular/router';
import { StateService } from '../../services/state.service';
@Component({
selector: 'app-hashrate-chart',
templateUrl: './hashrate-chart.component.html',
styleUrls: ['./hashrate-chart.component.scss'],
styles: [`
.loadingGraphs {
position: absolute;
top: 50%;
left: calc(50% - 15px);
z-index: 100;
}
`],
changeDetection: ChangeDetectionStrategy.OnPush,
})
export class HashrateChartComponent implements OnInit {
@Input() tableOnly = false;
@Input() widget = false;
@Input() right: number | string = 45;
@Input() left: number | string = 75;
miningWindowPreference: string;
radioGroupForm: UntypedFormGroup;
chartOptions: EChartsOption = {};
chartInitOptions = {
renderer: 'svg',
};
@HostBinding('attr.dir') dir = 'ltr';
hashrateObservable$: Observable<any>;
isLoading = true;
formatNumber = formatNumber;
timespan = '';
chartInstance: any = undefined;
network = '';
constructor(
@Inject(LOCALE_ID) public locale: string,
private seoService: SeoService,
private apiService: ApiService,
private formBuilder: UntypedFormBuilder,
private storageService: StorageService,
private miningService: MiningService,
private route: ActivatedRoute,
private stateService: StateService
) {
}
ngOnInit(): void {
this.stateService.networkChanged$.subscribe((network) => this.network = network);
let firstRun = true;
if (this.widget) {
this.miningWindowPreference = '1y';
} else {
this.seoService.setTitle($localize`:@@3510fc6daa1d975f331e3a717bdf1a34efa06dff:Hashrate & Difficulty`);
this.miningWindowPreference = this.miningService.getDefaultTimespan('3m');
}
this.radioGroupForm = this.formBuilder.group({ dateSpan: this.miningWindowPreference });
this.radioGroupForm.controls.dateSpan.setValue(this.miningWindowPreference);
this.route
.fragment
.subscribe((fragment) => {
if (['1m', '3m', '6m', '1y', '2y', '3y', 'all'].indexOf(fragment) > -1) {
this.radioGroupForm.controls.dateSpan.setValue(fragment, { emitEvent: false });
}
});
this.hashrateObservable$ = this.radioGroupForm.get('dateSpan').valueChanges
.pipe(
startWith(this.radioGroupForm.controls.dateSpan.value),
switchMap((timespan) => {
if (!this.widget && !firstRun) {
this.storageService.setValue('miningWindowPreference', timespan);
}
this.timespan = timespan;
firstRun = false;
this.miningWindowPreference = timespan;
this.isLoading = true;
return this.apiService.getHistoricalHashrate$(timespan)
.pipe(
tap((response) => {
const data = response.body;
// We generate duplicated data point so the tooltip works nicely
const diffFixed = [];
let diffIndex = 1;
let hashIndex = 0;
while (hashIndex < data.hashrates.length) {
if (diffIndex >= data.difficulty.length) {
while (hashIndex < data.hashrates.length) {
diffFixed.push({
timestamp: data.hashrates[hashIndex].timestamp,
difficulty: data.difficulty.length > 0 ? data.difficulty[data.difficulty.length - 1].difficulty : null
});
++hashIndex;
}
break;
}
while (hashIndex < data.hashrates.length && diffIndex < data.difficulty.length &&
data.hashrates[hashIndex].timestamp <= data.difficulty[diffIndex].time
) {
diffFixed.push({
timestamp: data.hashrates[hashIndex].timestamp,
difficulty: data.difficulty[diffIndex - 1].difficulty
});
++hashIndex;
}
++diffIndex;
}
let maResolution = 15;
const hashrateMa = [];
for (let i = maResolution - 1; i < data.hashrates.length; ++i) {
let avg = 0;
for (let y = maResolution - 1; y >= 0; --y) {
avg += data.hashrates[i - y].avgHashrate;
}
avg /= maResolution;
hashrateMa.push([data.hashrates[i].timestamp * 1000, avg]);
}
this.prepareChartOptions({
hashrates: data.hashrates.map(val => [val.timestamp * 1000, val.avgHashrate]),
difficulty: diffFixed.map(val => [val.timestamp * 1000, val.difficulty]),
hashrateMa: hashrateMa,
});
this.isLoading = false;
}),
map((response) => {
const data = response.body;
return {
blockCount: parseInt(response.headers.get('x-total-count'), 10),
currentDifficulty: data.currentDifficulty,
currentHashrate: data.currentHashrate,
};
}),
);
}),
share()
);
}
prepareChartOptions(data) {
let title: object;
if (data.hashrates.length === 0) {
title = {
textStyle: {
color: 'grey',
fontSize: 15
},
text: $localize`:@@23555386d8af1ff73f297e89dd4af3f4689fb9dd:Indexing blocks`,
left: 'center',
top: 'center'
};
}
this.chartOptions = {
title: title,
animation: false,
color: [
new graphic.LinearGradient(0, 0, 0, 0.65, [
{ offset: 0, color: '#F4511E99' },
{ offset: 0.25, color: '#FB8C0099' },
{ offset: 0.5, color: '#FFB30099' },
{ offset: 0.75, color: '#FDD83599' },
{ offset: 1, color: '#7CB34299' }
]),
'#D81B60',
new graphic.LinearGradient(0, 0, 0, 0.65, [
{ offset: 0, color: '#F4511E' },
{ offset: 0.25, color: '#FB8C00' },
{ offset: 0.5, color: '#FFB300' },
{ offset: 0.75, color: '#FDD835' },
{ offset: 1, color: '#7CB342' }
]),
],
grid: {
top: this.widget ? 20 : 40,
bottom: this.widget ? 30 : 70,
right: this.right,
left: this.left,
},
tooltip: {
show: !this.isMobile() || !this.widget,
trigger: 'axis',
axisPointer: {
type: 'line'
},
backgroundColor: 'rgba(17, 19, 31, 1)',
borderRadius: 4,
shadowColor: 'rgba(0, 0, 0, 0.5)',
textStyle: {
color: '#b1b1b1',
align: 'left',
},
borderColor: '#000',
formatter: (ticks) => {
let hashrateString = '';
let difficultyString = '';
let hashrateStringMA = '';
let hashratePowerOfTen: any = selectPowerOfTen(1);
for (const tick of ticks) {
if (tick.seriesIndex === 0) { // Hashrate
let hashrate = tick.data[1];
if (this.isMobile()) {
hashratePowerOfTen = selectPowerOfTen(tick.data[1]);
hashrate = Math.round(tick.data[1] / hashratePowerOfTen.divider);
}
hashrateString = `${tick.marker} ${tick.seriesName}: ${formatNumber(hashrate, this.locale, '1.0-0')} ${hashratePowerOfTen.unit}H/s<br>`;
} else if (tick.seriesIndex === 1) { // Difficulty
let difficultyPowerOfTen = hashratePowerOfTen;
let difficulty = tick.data[1];
if (difficulty === null) {
difficultyString = `${tick.marker} ${tick.seriesName}: No data<br>`;
} else {
if (this.isMobile()) {
difficultyPowerOfTen = selectPowerOfTen(tick.data[1]);
difficulty = Math.round(tick.data[1] / difficultyPowerOfTen.divider);
}
difficultyString = `${tick.marker} ${tick.seriesName}: ${formatNumber(difficulty, this.locale, '1.2-2')} ${difficultyPowerOfTen.unit}<br>`;
}
} else if (tick.seriesIndex === 2) { // Hashrate MA
let hashrate = tick.data[1];
if (this.isMobile()) {
hashratePowerOfTen = selectPowerOfTen(tick.data[1]);
hashrate = Math.round(tick.data[1] / hashratePowerOfTen.divider);
}
hashrateStringMA = `${tick.marker} ${tick.seriesName}: ${formatNumber(hashrate, this.locale, '1.0-0')} ${hashratePowerOfTen.unit}H/s`;
}
}
const date = new Date(ticks[0].data[0]).toLocaleDateString(this.locale, { year: 'numeric', month: 'short', day: 'numeric' });
return `
<b style="color: white; margin-left: 2px">${date}</b><br>
<span>${difficultyString}</span>
<span>${hashrateString}</span>
<span>${hashrateStringMA}</span>
`;
}
},
xAxis: data.hashrates.length === 0 ? undefined : {
type: 'time',
splitNumber: (this.isMobile() || this.widget) ? 5 : 10,
axisLabel: {
hideOverlap: true,
}
},
legend: (this.widget || data.hashrates.length === 0) ? undefined : {
data: [
{
name: $localize`:@@79a9dc5b1caca3cbeb1733a19515edacc5fc7920:Hashrate`,
inactiveColor: 'rgb(110, 112, 121)',
textStyle: {
color: 'white',
},
icon: 'roundRect',
itemStyle: {
color: '#FFB300',
},
},
{
name: $localize`:@@25148835d92465353fc5fe8897c27d5369978e5a:Difficulty`,
inactiveColor: 'rgb(110, 112, 121)',
textStyle: {
color: 'white',
},
icon: 'roundRect',
},
{
name: $localize`Hashrate (MA)`,
inactiveColor: 'rgb(110, 112, 121)',
textStyle: {
color: 'white',
},
icon: 'roundRect',
itemStyle: {
color: '#FFB300',
},
},
],
selected: JSON.parse(this.storageService.getValue('hashrate_difficulty_legend')) ?? {
'$localize`:@@79a9dc5b1caca3cbeb1733a19515edacc5fc7920:Hashrate`': true,
'$localize`::Difficulty`': this.network === '',
'$localize`Hashrate (MA)`': true,
},
},
yAxis: data.hashrates.length === 0 ? undefined : [
{
min: (value) => {
const selectedPowerOfTen: any = selectPowerOfTen(value.min);
const newMin = Math.floor(value.min / selectedPowerOfTen.divider / 10);
return newMin * selectedPowerOfTen.divider * 10;
},
type: 'value',
axisLabel: {
color: 'rgb(110, 112, 121)',
formatter: (val) => {
const selectedPowerOfTen: any = selectPowerOfTen(val);
const newVal = Math.round(val / selectedPowerOfTen.divider);
return `${newVal} ${selectedPowerOfTen.unit}H/s`;
}
},
splitLine: {
lineStyle: {
type: 'dotted',
color: '#ffffff66',
opacity: 0.25,
}
},
},
{
min: (value) => {
return value.min * 0.9;
},
type: 'value',
position: 'right',
axisLabel: {
color: 'rgb(110, 112, 121)',
formatter: (val) => {
if (this.stateService.network === 'signet') {
return val;
}
const selectedPowerOfTen: any = selectPowerOfTen(val);
const newVal = Math.round(val / selectedPowerOfTen.divider);
return `${newVal} ${selectedPowerOfTen.unit}`;
}
},
splitLine: {
show: false,
}
}
],
series: data.hashrates.length === 0 ? [] : [
{
zlevel: 0,
yAxisIndex: 0,
name: $localize`:@@79a9dc5b1caca3cbeb1733a19515edacc5fc7920:Hashrate`,
showSymbol: false,
symbol: 'none',
data: data.hashrates,
type: 'line',
lineStyle: {
width: 1,
},
},
{
zlevel: 1,
yAxisIndex: 1,
name: $localize`:@@25148835d92465353fc5fe8897c27d5369978e5a:Difficulty`,
showSymbol: false,
symbol: 'none',
data: data.difficulty,
type: 'line',
lineStyle: {
width: 3,
}
},
{
zlevel: 2,
name: $localize`Hashrate (MA)`,
showSymbol: false,
symbol: 'none',
data: data.hashrateMa,
type: 'line',
smooth: true,
lineStyle: {
width: 3,
}
}
],
dataZoom: this.widget ? null : [{
type: 'inside',
realtime: true,
zoomLock: true,
maxSpan: 100,
minSpan: 5,
moveOnMouseMove: false,
}, {
showDetail: false,
show: true,
type: 'slider',
brushSelect: false,
realtime: true,
left: 20,
right: 15,
selectedDataBackground: {
lineStyle: {
color: '#fff',
opacity: 0.45,
},
areaStyle: {
opacity: 0,
}
},
}],
};
}
onChartInit(ec) {
this.chartInstance = ec;
this.chartInstance.on('legendselectchanged', (e) => {
this.storageService.setValue('hashrate_difficulty_legend', JSON.stringify(e.selected));
});
}
isMobile() {
return (window.innerWidth <= 767.98);
}
onSaveChart() {
// @ts-ignore
const prevBottom = this.chartOptions.grid.bottom;
const now = new Date();
// @ts-ignore
this.chartOptions.grid.bottom = 30;
this.chartOptions.backgroundColor = '#11131f';
this.chartInstance.setOption(this.chartOptions);
download(this.chartInstance.getDataURL({
pixelRatio: 2,
excludeComponents: ['dataZoom'],
}), `hashrate-difficulty-${this.timespan}-${Math.round(now.getTime() / 1000)}.svg`);
// @ts-ignore
this.chartOptions.grid.bottom = prevBottom;
this.chartOptions.backgroundColor = 'none';
this.chartInstance.setOption(this.chartOptions);
}
}