/**
 * Ramp Network on-ramp adapter — URL-based widget, no server-side session needed.
 *
 * Docs: https://docs.ramp.network/
 */

import type { OnrampProvider, OnrampSessionRequest, OnrampSessionResult } from './onramp-provider';

export class RampOnrampAdapter implements OnrampProvider {
	id = 'ramp' as const;
	name = 'Ramp Network';

	isAvailable(): boolean {
		return !!process.env.RAMP_API_KEY;
	}

	async createSession(req: OnrampSessionRequest): Promise<OnrampSessionResult> {
		const hostApiKey = process.env.RAMP_API_KEY;
		if (!hostApiKey) throw new Error('Ramp Network not configured');

		const url = new URL('https://app.ramp.network/');
		url.searchParams.set('hostApiKey', hostApiKey);
		url.searchParams.set('userAddress', req.walletAddress);
		url.searchParams.set('swapAsset', 'BASE_USDC');
		url.searchParams.set('fiatValue', req.fiatAmount.toString());
		url.searchParams.set('fiatCurrency', req.fiatCurrency.toUpperCase());
		if (req.email) url.searchParams.set('userEmailAddress', req.email);
		if (req.returnUrl) url.searchParams.set('finalUrl', req.returnUrl);

		return { widgetUrl: url.toString(), provider: 'ramp' };
	}
}