Differential D20113 Diff 59788 apps/marlin-wallet/web/src/active-asset.ts

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apps/marlin-wallet/web/src/active-asset.ts

	// Copyright (c) 2026 The Bitcoin developers			// Copyright (c) 2026 The Bitcoin developers
	// Distributed under the MIT software license, see the accompanying			// Distributed under the MIT software license, see the accompanying
	// file COPYING or http://www.opensource.org/licenses/mit-license.php.			// file COPYING or http://www.opensource.org/licenses/mit-license.php.

	import { CryptoTicker } from 'ecash-price';			import {
				CryptoTicker,
				formatPrice,
				type PriceFormatterConfig,
				} from 'ecash-price';
	import { XEC_ASSET, type AssetDefinition } from './supported-assets';			import { XEC_ASSET, type AssetDefinition } from './supported-assets';

	type ActiveAsset = { def: AssetDefinition };			type ActiveAsset = { def: AssetDefinition };

	let current: ActiveAsset = { def: XEC_ASSET };			let current: ActiveAsset = { def: XEC_ASSET };

	export function setActiveAsset(asset: ActiveAsset): void {			export function setActiveAsset(asset: ActiveAsset): void {
	current = asset;			current = asset;
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	export function activeQuoteCurrency(): CryptoTicker \| undefined {			export function activeQuoteCurrency(): CryptoTicker \| undefined {
	return current.def.quoteCurrency ?? undefined;			return current.def.quoteCurrency ?? undefined;
	}			}

	export function allowFiatForActiveAsset(): boolean {			export function allowFiatForActiveAsset(): boolean {
	return current.def.quoteCurrency !== undefined;			return current.def.quoteCurrency !== undefined;
	}			}

				/** formatPrice uppercases crypto tickers; swap in the asset's display ticker. */
				function withDisplayTickerSuffix(
				formatted: string,
				displayTicker: string,
				cryptoTicker: CryptoTicker,
				): string {
				const upperSuffix = ` ${cryptoTicker.toString().toUpperCase()}`;
				const displaySuffix = ` ${displayTicker}`;
				if (formatted.endsWith(upperSuffix)) {
				return formatted.slice(0, -upperSuffix.length) + displaySuffix;
				}
				return formatted;
				}

				/** Format an amount in the active asset using its display ticker (preserves case). */
				export function formatActiveAssetAmount(
				amount: number,
				config?: PriceFormatterConfig,
				): string {
				const cryptoTicker = activeCryptoTicker();
				const formatted = formatPrice(amount, cryptoTicker, config);
				return withDisplayTickerSuffix(
				formatted,
				activeAssetTicker(),
				cryptoTicker,
				);
				}