perf: Improve workflows list performance (#5021)

* spike: Improve workflow list performance

* fix: Correcting override behavior

* refactor: Remove unnecessary promise

* remove duplicate code

* remove the `async` that is breaking the listings page

Co-authored-by: कारतोफ्फेलस्क्रिप्ट™ <aditya@netroy.in>

packages/cli/src/workflows/workflows.services.ee.ts

@@ -89,7 +89,9 @@ export class EEWorkflowsService extends WorkflowsService {
 	static addOwnerAndSharings(workflow: WorkflowWithSharingsAndCredentials): void {
 		workflow.ownedBy = null;
 		workflow.sharedWith = [];
-		workflow.usedCredentials = [];
+		if (!workflow.usedCredentials) {
+			workflow.usedCredentials = [];
+		}
 
 		workflow.shared?.forEach(({ user, role }) => {
 			const { id, email, firstName, lastName } = user;
@@ -154,6 +156,71 @@ export class EEWorkflowsService extends WorkflowsService {
 		});
 	}
 
+	static async addCredentialsToWorkflows(
+		workflows: WorkflowWithSharingsAndCredentials[],
+		currentUser: User,
+	): Promise<void> {
+		// Create 2 maps: one with all the credential ids used by all workflows
+		// And another to match back workflow <> credentials
+		const allUsedCredentialIds = new Set<string>();
+		const mapsWorkflowsToUsedCredentials: string[][] = [];
+		workflows.forEach((workflow, idx) => {
+			workflow.nodes.forEach((node) => {
+				if (!node.credentials) {
+					return;
+				}
+				Object.keys(node.credentials).forEach((credentialType) => {
+					const credential = node.credentials?.[credentialType];
+					if (!credential?.id) {
+						return;
+					}
+					if (!mapsWorkflowsToUsedCredentials[idx]) {
+						mapsWorkflowsToUsedCredentials[idx] = [];
+					}
+					mapsWorkflowsToUsedCredentials[idx].push(credential.id);
+					allUsedCredentialIds.add(credential.id);
+				});
+			});
+		});
+
+		const usedWorkflowsCredentials = await EECredentials.getMany({
+			where: {
+				id: In(Array.from(allUsedCredentialIds)),
+			},
+			relations: ['shared', 'shared.user', 'shared.role'],
+		});
+		const userCredentials = await EECredentials.getAll(currentUser, { disableGlobalRole: true });
+		const userCredentialIds = userCredentials.map((credential) => credential.id.toString());
+		const credentialsMap: Record<string, CredentialUsedByWorkflow> = {};
+		usedWorkflowsCredentials.forEach((credential) => {
+			credentialsMap[credential.id.toString()] = {
+				id: credential.id.toString(),
+				name: credential.name,
+				type: credential.type,
+				currentUserHasAccess: userCredentialIds.includes(credential.id.toString()),
+				sharedWith: [],
+				ownedBy: null,
+			};
+			credential.shared?.forEach(({ user, role }) => {
+				const { id, email, firstName, lastName } = user;
+				if (role.name === 'owner') {
+					credentialsMap[credential.id.toString()].ownedBy = { id, email, firstName, lastName };
+				} else {
+					credentialsMap[credential.id.toString()].sharedWith?.push({
+						id,
+						email,
+						firstName,
+						lastName,
+					});
+				}
+			});
+		});
+
+		mapsWorkflowsToUsedCredentials.forEach((usedCredentialIds, idx) => {
+			workflows[idx].usedCredentials = usedCredentialIds.map((id) => credentialsMap[id]);
+		});
+	}
+
 	static validateCredentialPermissionsToUser(
 		workflow: WorkflowEntity,
 		allowedCredentials: ICredentialsDb[],