feat: Add MCP settings export and copy functionality (#367)

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: samanhappy <2755122+samanhappy@users.noreply.github.com>
Co-authored-by: samanhappy <samanhappy@gmail.com>

tests/controllers/configController.test.ts

@@ -0,0 +1,139 @@
+import { getMcpSettingsJson } from '../../src/controllers/configController.js'
+import * as config from '../../src/config/index.js'
+import { Request, Response } from 'express'
+
+// Mock the config module
+jest.mock('../../src/config/index.js')
+
+describe('ConfigController - getMcpSettingsJson', () => {
+  let mockRequest: Partial<Request>
+  let mockResponse: Partial<Response>
+  let mockJson: jest.Mock
+  let mockStatus: jest.Mock
+
+  beforeEach(() => {
+    mockJson = jest.fn()
+    mockStatus = jest.fn().mockReturnThis()
+    mockRequest = {
+      query: {},
+    }
+    mockResponse = {
+      json: mockJson,
+      status: mockStatus,
+    }
+
+    // Reset mocks
+    jest.clearAllMocks()
+  })
+
+  describe('Full Settings Export', () => {
+    it('should handle settings without users array', () => {
+      const mockSettings = {
+        mcpServers: {
+          'test-server': {
+            command: 'test',
+            args: ['--test'],
+          },
+        },
+      }
+
+      ;(config.loadOriginalSettings as jest.Mock).mockReturnValue(mockSettings)
+
+      getMcpSettingsJson(mockRequest as Request, mockResponse as Response)
+
+      expect(mockJson).toHaveBeenCalledWith({
+        success: true,
+        data: {
+          mcpServers: mockSettings.mcpServers,
+          users: undefined,
+        },
+      })
+    })
+  })
+
+  describe('Individual Server Export', () => {
+    it('should return individual server configuration when serverName is specified', () => {
+      const mockSettings = {
+        mcpServers: {
+          'test-server': {
+            command: 'test',
+            args: ['--test'],
+            env: {
+              TEST_VAR: 'test-value',
+            },
+          },
+          'another-server': {
+            command: 'another',
+            args: ['--another'],
+          },
+        },
+        users: [
+          {
+            username: 'admin',
+            password: '$2b$10$hashedpassword',
+            isAdmin: true,
+          },
+        ],
+      }
+
+      mockRequest.query = { serverName: 'test-server' }
+      ;(config.loadOriginalSettings as jest.Mock).mockReturnValue(mockSettings)
+
+      getMcpSettingsJson(mockRequest as Request, mockResponse as Response)
+
+      expect(mockJson).toHaveBeenCalledWith({
+        success: true,
+        data: {
+          mcpServers: {
+            'test-server': {
+              command: 'test',
+              args: ['--test'],
+              env: {
+                TEST_VAR: 'test-value',
+              },
+            },
+          },
+        },
+      })
+    })
+
+    it('should return 404 when server does not exist', () => {
+      const mockSettings = {
+        mcpServers: {
+          'test-server': {
+            command: 'test',
+            args: ['--test'],
+          },
+        },
+      }
+
+      mockRequest.query = { serverName: 'non-existent-server' }
+      ;(config.loadOriginalSettings as jest.Mock).mockReturnValue(mockSettings)
+
+      getMcpSettingsJson(mockRequest as Request, mockResponse as Response)
+
+      expect(mockStatus).toHaveBeenCalledWith(404)
+      expect(mockJson).toHaveBeenCalledWith({
+        success: false,
+        message: "Server 'non-existent-server' not found",
+      })
+    })
+  })
+
+  describe('Error Handling', () => {
+    it('should handle errors gracefully and return 500', () => {
+      const errorMessage = 'Failed to load settings'
+      ;(config.loadOriginalSettings as jest.Mock).mockImplementation(() => {
+        throw new Error(errorMessage)
+      })
+
+      getMcpSettingsJson(mockRequest as Request, mockResponse as Response)
+
+      expect(mockStatus).toHaveBeenCalledWith(500)
+      expect(mockJson).toHaveBeenCalledWith({
+        success: false,
+        message: 'Failed to get MCP settings',
+      })
+    })
+  })
+})