var _mp_key = "pk_live_wZtAfihRvoQM47vKiREe8uWFRGdzq9kO";
function calculate_buy(coin, usd_amount, callback_fn){
	const options = {method: 'GET', headers: {accept: 'application/json'}};
	
	fetch('https://api.moonpay.com/v3/currencies/'+coin+'/buy_quote?baseCurrencyCode=usd&baseCurrencyAmount='+usd_amount+'&apiKey='+_mp_key, options)
	  .then(function(response){return response.json();}).then(function(data){
		  callback_fn(data.totalAmount); //not calling the function
	  });
}

function load_mp_window(currency, address, usd_amount, crypto_amount){
	const moonPay = window.MoonPayWebSdk.init;
	
	if(crypto_amount){
		//when receiving crypto amount
		var mp_params = {
		  apiKey: _mp_key,
		  currencyCode: currency,
		  walletAddress: address,
		  baseCurrencyCode: 'usd',
		  quoteCurrencyAmount: crypto_amount,
		  //lockAmount:true
		}
	}else{
		//when receiving USD amount
		var mp_params = {
		  apiKey: _mp_key,
		  currencyCode: currency,
		  walletAddress: address,
		  baseCurrencyCode: 'usd',
		  baseCurrencyAmount: usd_amount
		  //quoteCurrencyAmount: crypto_amount,
		  //lockAmount:true
		}
	}
	
	const moonPaySdk = moonPay({
	  flow: 'buy',
	  environment: 'production',
	  variant: 'embedded',
	  useWarnBeforeRefresh: false,
	  containerNodeSelector: '#moonpay-widget',	  
	  params: mp_params
	});
	
	const urlForSignature = moonPaySdk.generateUrlForSigning();
	
	fetch("https://kribatta.com/cashier/utilities/action/moonpay_signing.php", {
	  method: "POST",
	  body: JSON.stringify({ urlForSignature }),
	}).then(function(response){return response.json();}).then(function(data){
		$("#moonifrm").attr("src",data.signature);
	});
	
}