export const PAYMENT_METHOD_LABELS = {
	wechat: '微信支付',
	alipay: '支付宝支付',
	wallet: '钱包支付'
};

export const normalizePaymentMethods = (methods) => {
	if (!Array.isArray(methods)) return [];

	return [...new Set(methods.filter((method) => Object.prototype.hasOwnProperty.call(PAYMENT_METHOD_LABELS, method)))];
};

export const getPaymentMethodOptions = (methods, preferredOrder = ['alipay', 'wechat', 'wallet']) => {
	const normalized = normalizePaymentMethods(methods);
	return preferredOrder
		.filter((method) => normalized.includes(method))
		.map((value) => ({ value, label: PAYMENT_METHOD_LABELS[value] }));
};

export const getDefaultPaymentMethod = (methods, preferredOrder) =>
	getPaymentMethodOptions(methods, preferredOrder)[0]?.value || '';