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REF: Cache the numberformatter

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This commit is contained in:
Marcos Rodriguez Velez 2024-11-03 19:25:07 -04:00
parent 057638cb27
commit 4f67fa1b1b
1 changed files with 55 additions and 16 deletions
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71
blue_modules/currency.ts
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@ -27,11 +27,48 @@ let exchangeRates: ExchangeRates = { LAST_UPDATED_ERROR: false };
let lastTimeUpdateExchangeRateWasCalled: number = 0;
let skipUpdateExchangeRate: boolean = false;
let currencyFormatter: Intl.NumberFormat | null = null;
let btcFormatter: Intl.NumberFormat | null = null;
function getCurrencyFormatter(): Intl.NumberFormat {
if (
!currencyFormatter ||
currencyFormatter.resolvedOptions().locale !== preferredFiatCurrency.locale ||
currencyFormatter.resolvedOptions().currency !== preferredFiatCurrency.endPointKey
) {
currencyFormatter = new Intl.NumberFormat(preferredFiatCurrency.locale, {
style: 'currency',
currency: preferredFiatCurrency.endPointKey,
minimumFractionDigits: 2,
maximumFractionDigits: 8,
});
console.debug('Created new currency formatter');
} else {
console.debug('Using cached currency formatter');
}
return currencyFormatter;
}
function getBTCFormatter(): Intl.NumberFormat {
if (!btcFormatter) {
btcFormatter = new Intl.NumberFormat(preferredFiatCurrency.locale, {
minimumFractionDigits: 8,
maximumFractionDigits: 8,
});
console.debug('Created new BTC formatter');
} else {
console.debug('Using cached BTC formatter');
}
return btcFormatter;
}
async function setPreferredCurrency(item: FiatUnitType): Promise<void> {
await AsyncStorage.setItem(PREFERRED_CURRENCY_STORAGE_KEY, JSON.stringify(item));
await DefaultPreference.setName(GROUP_IO_BLUEWALLET);
await DefaultPreference.set(PREFERRED_CURRENCY_STORAGE_KEY, item.endPointKey);
await DefaultPreference.set(PREFERRED_CURRENCY_LOCALE_STORAGE_KEY, item.locale.replace('-', '_'));
currencyFormatter = null;
btcFormatter = null;
}
async function updateExchangeRate(): Promise<void> {
@ -79,7 +116,10 @@ async function updateExchangeRate(): Promise<void> {
rate.LAST_UPDATED_ERROR = true;
exchangeRates.LAST_UPDATED_ERROR = true;
await AsyncStorage.setItem(EXCHANGE_RATES_STORAGE_KEY, JSON.stringify(rate));
} catch (storageError) {}
} catch (storageError) {
exchangeRates = { LAST_UPDATED_ERROR: true };
throw storageError;
}
}
}
@ -233,15 +273,9 @@ function satoshiToLocalCurrency(satoshi: number, format: boolean = true): string
if (format === false) return formattedAmount;
try {
const formatter = new Intl.NumberFormat(preferredFiatCurrency.locale, {
style: 'currency',
currency: preferredFiatCurrency.endPointKey,
minimumFractionDigits: 2,
maximumFractionDigits: 8,
});
return formatter.format(Number(formattedAmount));
return getCurrencyFormatter().format(Number(formattedAmount));
} catch (error) {
console.warn(error);
console.error(error);
return formattedAmount;
}
}
@ -267,15 +301,10 @@ async function mostRecentFetchedRate(): Promise<CurrencyRate> {
currencyInformation = {};
}
const formatter = new Intl.NumberFormat(preferredFiatCurrency.locale, {
style: 'currency',
currency: preferredFiatCurrency.endPointKey,
});
const rate = currencyInformation[BTC_PREFIX + preferredFiatCurrency.endPointKey];
return {
LastUpdated: currencyInformation[LAST_UPDATED],
Rate: rate ? formatter.format(rate) : '...',
LastUpdated: currencyInformation[LAST_UPDATED] ? new Date(currencyInformation[LAST_UPDATED]) : null,
Rate: rate ? getCurrencyFormatter().format(rate) : '...',
};
} catch {
return {
@ -309,6 +338,15 @@ function getCurrencySymbol(): string {
return preferredFiatCurrency.symbol;
}
function formatBTC(btc: BigNumber.Value): string {
try {
return getBTCFormatter().format(Number(btc));
} catch (error) {
console.error(error);
return new BigNumber(btc).toFixed(8);
}
}
function _setPreferredFiatCurrency(currency: FiatUnitType): void {
preferredFiatCurrency = currency;
}
@ -341,4 +379,5 @@ export {
satoshiToLocalCurrency,
setPreferredCurrency,
updateExchangeRate,
formatBTC,
};