code optimization

lib/middleware/ParseResponse.js

@@ -1,11 +0,0 @@
-'use strict';
-
-const H004Response = require('../versions/H004/Response');
-
-module.exports = class ParseResponse {
-	static parse(data, keys, version) {
-		if (version.toUpperCase() === 'H004') return new H004Response(data, keys);
-
-		throw Error('Unknow EBICS response version');
-	}
-};

lib/middleware/XMLSign.js

@@ -1,15 +0,0 @@
-'use strict';
-
-const H004Signer = require('../versions/H004/Signer');
-
-const H004Serializer = require('../versions/H004/OrderSerializer');
-
-module.exports = class XMLSign {
-	static sign(order) {
-		const { keys } = order;
-
-		if (order.version.toUpperCase() === 'H004') return new H004Signer(H004Serializer.serialize(order).toXML(), keys).digest().sign().toXML();
-
-		throw Error('Error from XMLSign class: Invalid version number');
-	}
-};

lib/middleware/response.js

@@ -0,0 +1,11 @@
+'use strict';
+
+const H004Response = require('../orders/H004/response');
+
+module.exports = {
+	version(v) {
+		if (v.toUpperCase() === 'H004') return H004Response;
+
+		throw Error('Error from middleware/response.js: Invalid version number');
+	},
+};

lib/middleware/serializer.js

@@ -0,0 +1,13 @@
+'use strict';
+
+const H004Serializer = require('../orders/H004/serializer');
+
+module.exports = {
+	use(order) {
+		const { version } = order;
+
+		if (version.toUpperCase() === 'H004') return H004Serializer.use(order);
+
+		throw Error('Error middleware/serializer.js: Invalid version number');
+	},
+};

lib/middleware/signer.js

@@ -0,0 +1,11 @@
+'use strict';
+
+const H004Signer = require('../orders/H004/signer');
+
+module.exports = {
+	version(v) {
+		if (v.toUpperCase() === 'H004') return H004Signer;
+
+		throw Error('Error from middleware/signer.js: Invalid version number');
+	},
+};