Feature/editor simplify - API to work with mock data sets (#5421)

* Added an API to get list of mock datsets
Removed the flow of

* Removed the auto populate of mock datasets flow when the user sign up first time

* Fixed indentation issues

* Instead of sending empty datasource, change template value to empty

* Add only the configs to response instead of entire mongo doc

* Add API to create mock data set

app/server/appsmith-server/src/main/java/com/appsmith/server/controllers/DatasourceController.java

@@ -9,6 +9,8 @@
 import com.appsmith.server.services.DatasourceService;
 import com.appsmith.server.solutions.AuthenticationService;
 import com.appsmith.server.solutions.DatasourceStructureSolution;
+import com.appsmith.server.services.ConfigService;
+import com.appsmith.server.solutions.ExamplesOrganizationCloner;
 import lombok.extern.slf4j.Slf4j;
 import org.apache.commons.lang3.BooleanUtils;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -23,6 +25,8 @@
 import org.springframework.web.server.ServerWebExchange;
 import reactor.core.publisher.Mono;
 
+import net.minidev.json.JSONObject;
+
 import java.net.URI;
 
 @Slf4j
@@ -32,14 +36,20 @@ public class DatasourceController extends BaseController<DatasourceService, Data
 
     private final DatasourceStructureSolution datasourceStructureSolution;
     private final AuthenticationService authenticationService;
+    private final ConfigService configService;
+    private final ExamplesOrganizationCloner examplesOrganizationCloner;
+
+    private static final String TEMPLATE_ORGANIZATION_CONFIG_NAME = "template-mockdb";
 
     @Autowired
     public DatasourceController(DatasourceService service,
                                 DatasourceStructureSolution datasourceStructureSolution,
-                                AuthenticationService authenticationService) {
+                                AuthenticationService authenticationService, ConfigService configService, ExamplesOrganizationCloner examplesOrganizationCloner) {
         super(service);
         this.datasourceStructureSolution = datasourceStructureSolution;
         this.authenticationService = authenticationService;
+        this.configService = configService;
+        this.examplesOrganizationCloner = examplesOrganizationCloner;
     }
 
     @PostMapping("/test")
@@ -79,5 +89,16 @@ public Mono<Void> getAccessToken(AuthorizationCodeCallbackDTO callbackDTO, Serve
                 });
     }
 
+    @GetMapping("/mocks")
+    public Mono<ResponseDTO<JSONObject>> getMockDataSets() {
+        return configService.getByName(TEMPLATE_ORGANIZATION_CONFIG_NAME)
+                .map(config -> new ResponseDTO<>(HttpStatus.OK.value(), config.getConfig(), null));
+    }
+
+    @PostMapping("/mocks")
+    public Mono<ResponseDTO<Datasource>> createMockDataSet(@RequestParam String datasourceId, @RequestParam String organizationId) {
+        return examplesOrganizationCloner.cloneDatasource(datasourceId, organizationId)
+                .map(datasource -> new ResponseDTO<>(HttpStatus.OK.value(), datasource, null));
+    }
 
 }

app/server/appsmith-server/src/main/java/com/appsmith/server/solutions/ExamplesOrganizationCloner.java

@@ -370,7 +370,7 @@ private Mono<Application> cloneApplicationDocument(Application application) {
                 );
     }
 
-    private Mono<Datasource> cloneDatasource(String datasourceId, String toOrganizationId) {
+    public Mono<Datasource> cloneDatasource(String datasourceId, String toOrganizationId) {
         final Mono<List<Datasource>> existingDatasourcesMono = datasourceRepository.findAllByOrganizationId(toOrganizationId)
                 .collectList();