WIP: square backend support

pom.xml

@@ -38,6 +38,12 @@
 
   <dependencies>
     <!-- TODO: upgrade in nucleus-parent -->
+    <dependency>
+      <groupId>com.squareup</groupId>
+      <artifactId>square</artifactId>
+      <version>2021-09-15</version>
+      <scope>compile</scope>
+    </dependency>
     <dependency>
       <groupId>com.impactupgrade.integration</groupId>
       <artifactId>mailchimp-jvm-client</artifactId>

src/main/java/com/impactupgrade/nucleus/client/SquareClient.java

@@ -0,0 +1,25 @@
+package com.impactupgrade.nucleus.client;
+
+import com.impactupgrade.nucleus.environment.Environment;
+import com.stripe.net.RequestOptions;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+
+public class SquareClient {
+
+    private static final Logger log = LogManager.getLogger(StripeClient.class.getName());
+
+    protected final RequestOptions requestOptions;
+
+    public SquareClient(Environment env) {
+//        requestOptions = RequestOptions.builder().setApiKey(env.getConfig().square.secretKey).build();
+        requestOptions = RequestOptions.builder().build();
+    }
+
+    public SquareClient(RequestOptions requestOptions) {
+        this.requestOptions = requestOptions;
+    }
+
+
+
+}

src/main/java/com/impactupgrade/nucleus/service/segment/SquarePaymentGatewayService.java

@@ -0,0 +1,42 @@
+package com.impactupgrade.nucleus.service.segment;
+
+import com.impactupgrade.nucleus.environment.Environment;
+import com.impactupgrade.nucleus.model.ManageDonationEvent;
+import com.impactupgrade.nucleus.model.PaymentGatewayDeposit;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+
+import java.util.Date;
+import java.util.List;
+
+public class SquarePaymentGatewayService implements PaymentGatewayService {
+
+    private static final Logger log = LogManager.getLogger(StripePaymentGatewayService.class);
+
+    protected Environment env;
+
+    @Override
+    public String name() { return "square"; }
+
+    @Override
+    public void init(Environment env) {
+        this.env = env;
+    }
+
+
+    @Override
+    public List<PaymentGatewayDeposit> getDeposits(Date startDate, Date endDate) throws Exception {
+        // TODO:
+        return null;
+    }
+
+    @Override
+    public void updateSubscription(ManageDonationEvent manageDonationEvent) throws Exception {
+        // TODO:
+    }
+
+    @Override
+    public void closeSubscription(ManageDonationEvent manageDonationEvent) throws Exception {
+        // TODO:
+    }
+}