feat: add sim support to litd

In the commit we add the sinln support to litd nodes.

Author: Abdulkbk

src/components/designer/default/AddSimulationModal.tsx

@@ -113,7 +113,7 @@ const AddSimulationModal: React.FC<Props> = ({ network }) => {
               name="source"
               label={l('source')}
               nodeStatus={Status.Started}
-              implementation={['LND', 'eclair', 'c-lightning']}
+              implementation={['LND', 'eclair', 'c-lightning', 'litd']}
               nodes={nodes}
             />
           </Col>
@@ -123,7 +123,7 @@ const AddSimulationModal: React.FC<Props> = ({ network }) => {
               name="destination"
               label={l('destination')}
               nodeStatus={Status.Started}
-              implementation={['LND', 'eclair', 'c-lightning']}
+              implementation={['LND', 'eclair', 'c-lightning', 'litd']}
               nodes={nodes}
             />
           </Col>

src/lib/docker/dockerService.spec.ts

@@ -889,7 +889,7 @@ describe('DockerService', () => {
       eclairNodes: 1,
       bitcoindNodes: 1,
       tapdNodes: 0,
-      litdNodes: 0,
+      litdNodes: 1,
       repoState: defaultRepoState,
       managedImages: testManagedImages,
       customImages: [],
@@ -902,6 +902,7 @@ describe('DockerService', () => {
     const clightningNodes = network.nodes.lightning.filter(
       n => n.implementation === 'c-lightning',
     );
+    const litdNodes = network.nodes.lightning.filter(n => n.implementation === 'litd');
     beforeEach(() => {
       // Add simulation config to the test network
       network.simulation = {
@@ -966,13 +967,6 @@ describe('DockerService', () => {
       );
     });
 
-    it('should handle errors when using unsupported node types', async () => {
-      network.nodes.lightning[0].implementation = 'litd';
-      await expect(dockerService.startSimulation(network)).rejects.toThrow(
-        'unsupported node implementation: litd',
-      );
-    });
-
     it('should handle errors when node is not found', async () => {
       network.simulation!.activity[0].source = 'non-existent';
       await expect(dockerService.startSimulation(network)).rejects.toThrow(
@@ -999,14 +993,14 @@ describe('DockerService', () => {
       );
     });
 
-    // Now we should be able to use c-lightning in the simulation
+    // Now we should be able to use c-lightning and litd in the simulation
     it('should add c-lightning to the docker-compose.yml file', async () => {
       network.simulation = {
         activity: [
           {
             id: 0,
             source: clightningNodes[0].name,
-            destination: eclairNodes[0].name,
+            destination: litdNodes[0].name,
             intervalSecs: 60,
             amountMsat: 1000,
           },

src/lib/docker/dockerService.ts

@@ -470,8 +470,17 @@ class DockerService implements DockerLibrary {
             };
             break;
 
-          default:
-            throw new Error(`unsupported node implementation: ${node.implementation}`);
+          case 'litd':
+            const litd = node as LitdNode;
+            simNode = {
+              id: litd.name,
+              address: `host.docker.internal:${litd.ports.grpc}`,
+              cert: `/home/simln/.${litd.paths.tlsCert.split('volumes/').pop()}`,
+              macaroon: `/home/simln/.${litd.paths.adminMacaroon
+                .split('volumes/')
+                .pop()}`,
+            };
+            break;
         }
 
         // Add the node to the nodes Set.

src/lib/docker/nodeTemplates.ts

@@ -199,6 +199,7 @@ export const simln = (
     `./volumes/${name}:/home/simln/.simln`,
     `./volumes/${dockerConfigs.LND.volumeDirName}:/home/simln/.lnd`,
     `./volumes/${dockerConfigs['c-lightning'].volumeDirName}:/home/simln/.c-lightning`,
+    `./volumes/${dockerConfigs.litd.volumeDirName}:/home/simln/.litd`,
   ],
   expose: [],
   ports: [],