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Calculator validation improvements

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softsimon 2023-07-15 15:09:41 +09:00
parent 9ffd4cc38d
commit 992196c91f
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GPG Key ID: 488D7DCFB5A430D7
1 changed files with 31 additions and 1 deletions
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32
frontend/src/app/components/calculator/calculator.component.ts
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@ -54,6 +54,9 @@ export class CalculatorComponent implements OnInit {
]).subscribe(([price, value]) => {
const rate = (value / price).toFixed(8);
const satsRate = Math.round(value / price * 100_000_000);
if (isNaN(value)) {
return;
}
this.form.get('bitcoin').setValue(rate, { emitEvent: false });
this.form.get('satoshis').setValue(satsRate, { emitEvent: false } );
});
@ -63,6 +66,9 @@ export class CalculatorComponent implements OnInit {
this.form.get('bitcoin').valueChanges
]).subscribe(([price, value]) => {
const rate = parseFloat((value * price).toFixed(8));
if (isNaN(value)) {
return;
}
this.form.get('fiat').setValue(rate, { emitEvent: false } );
this.form.get('satoshis').setValue(Math.round(value * 100_000_000), { emitEvent: false } );
});
@ -73,6 +79,9 @@ export class CalculatorComponent implements OnInit {
]).subscribe(([price, value]) => {
const rate = parseFloat((value / 100_000_000 * price).toFixed(8));
const bitcoinRate = (value / 100_000_000).toFixed(8);
if (isNaN(value)) {
return;
}
this.form.get('fiat').setValue(rate, { emitEvent: false } );
this.form.get('bitcoin').setValue(bitcoinRate, { emitEvent: false });
});
@ -88,7 +97,16 @@ export class CalculatorComponent implements OnInit {
if (value === '.') {
value = '0';
}
const sanitizedValue = this.removeExtraDots(value);
let sanitizedValue = this.removeExtraDots(value);
if (name === 'bitcoin' && this.countDecimals(sanitizedValue) > 8) {
sanitizedValue = this.toFixedWithoutRounding(sanitizedValue, 8);
}
if (sanitizedValue === '') {
sanitizedValue = '0';
}
if (name === 'satoshis') {
sanitizedValue = parseFloat(sanitizedValue).toFixed(0);
}
formControl.setValue(sanitizedValue, {emitEvent: true});
}
@ -100,4 +118,16 @@ export class CalculatorComponent implements OnInit {
const afterDotReplaced = afterDot.replace(/\./g, '');
return `${beforeDot}.${afterDotReplaced}`;
}
countDecimals(numberString: string): number {
const decimalPos = numberString.indexOf('.');
if (decimalPos === -1) return 0;
return numberString.length - decimalPos - 1;
}
toFixedWithoutRounding(numStr: string, fixed: number): string {
const re = new RegExp(`^-?\\d+(?:.\\d{0,${(fixed || -1)}})?`);
const result = numStr.match(re);
return result ? result[0] : numStr;
}
}