fix, feat: add currency conversion stub

uses proper JS api for currency formatting and preparations for showing other currencies based on page locale

src/content/uiRenderer.ts

@@ -1,7 +1,8 @@
 import { ItemPriceData } from "./priceService";
-import { convertTF2PriceToUSD } from "./utils/currency";
+import { convertTF2PriceToUSD, defaultCurrencyForPageLocale, convertUSD } from "./utils/currency";
 import { formatPrice } from "./utils/formatting";
 import { $T } from "./utils/localization";
+import { logError } from "./utils/log";
 
 export function createPriceRow(qualityName: string, data: ItemPriceData, keyPrice: ItemPriceData, locale: string, wikiPage: string = null): HTMLTableRowElement {
   const priceRow = document.createElement("tr");
@@ -23,14 +24,25 @@ export function createPriceRow(qualityName: string, data: ItemPriceData, keyPric
   var priceString: string = ''
 
   if(data) {
-    const currencyFormatter = new Intl.NumberFormat(locale, {
+    const gamePrice = formatPrice(data.keys, data.metal, keyPrice.metal, locale).trim()
-      minimumFractionDigits: 2,
+    const realPriceUSD = convertTF2PriceToUSD(data.keys, data.metal, keyPrice.metal)
-      maximumFractionDigits: 2,
+
-     });
+    const USDFormatter = new Intl.NumberFormat(locale, { style: "currency", currency: 'USD' })
+    var realPriceString = USDFormatter.format(realPriceUSD)
+    const currency = defaultCurrencyForPageLocale(locale) ?? 'USD'
+    if(currency !== 'USD') {
+      try {
+        const realPrice = convertUSD(realPriceUSD, currency)
+        const currencyFormatter = new Intl.NumberFormat(locale, { style: "currency", currency: currency })
+        realPriceString = currencyFormatter.format(realPrice).replace(/\s+/g, '')
+      } catch (e) {
+        logError(`Failed to convert USD ${realPriceUSD} to ${currency}`, e)
+      }
+    }
 
     priceString += [
-      formatPrice(data.keys, data.metal, keyPrice.metal, locale).trim(),
+      gamePrice,
-      '(US$' + currencyFormatter.format(convertTF2PriceToUSD(data.keys, data.metal, keyPrice.metal)) + ')'
+      '(' + realPriceString + ')'
     ].join(' ').trim()
   } else {
     priceString += $T('Data unavailable')

src/content/utils/currency.ts

@@ -1,8 +1,47 @@
 import { conversion_ref_usd } from '../config';
 
+export function defaultCurrencyForPageLocale(locale: string): string | null {
+	switch (locale) {
+	case 'de':
+	case 'fr':
+	case 'it':
+	case 'nl':
+	case 'hu':
+		return 'EUR';
+	case 'ja':
+		return 'JPY';
+	case 'tr':
+		return 'TRY';
+	case 'da':
+		return 'DKK';
+	case 'pt-br':
+		return 'BRL';
+	case 'zh-hans':
+	case 'zh-hant':
+		return 'CNY';
+	case 'ko':
+		return 'KRW';
+	case 'cs':
+		return 'CZK';
+	case 'ru':
+		return 'RUB';
+	case 'pl':
+		return 'PLN';
+	default:
+		return null;
+	}
+}
+
 export function convertTF2PriceToUSD(keys: number, metal: number, keyPrice: number): number {
 	const pureMetal = (keys * keyPrice) + metal;
 
 	// Round price up to nearest cent
   return Math.ceil(pureMetal * conversion_ref_usd * 100) / 100
 }
+
+export function convertUSD(usd: number, currency: string): number {
+	const cur = currency.toUpperCase()
+	if(cur === 'USD') return usd
+
+	throw new Error(`Not implemented`)
+}