chore: create new folder structure with placeholders

Author: natalierobbins

server/src/database/connection/__tests__/mongoose.test.ts

@@ -0,0 +1,67 @@
+import { describe, expect, it, jest, beforeEach, afterEach } from '@jest/globals';
+import mongoose from 'mongoose';
+import { connectDB } from '../../index';
+
+// Mock mongoose
+jest.mock('mongoose');
+const mockedMongoose = mongoose as jest.Mocked<typeof mongoose>;
+
+// Mock console methods
+const consoleLogSpy = jest.spyOn(console, 'log').mockImplementation(() => {});
+const consoleErrorSpy = jest.spyOn(console, 'error').mockImplementation(() => {});
+const processExitSpy = jest.spyOn(process, 'exit').mockImplementation(() => {
+	throw new Error('process.exit called');
+});
+
+describe('Database Connection', () => {
+	beforeEach(() => {
+		jest.clearAllMocks();
+		process.env.MONGO_URI = 'mongodb+srv://test:test@test.mongodb.net/test?retryWrites=false&ssl=true';
+	});
+
+	afterEach(() => {
+		consoleLogSpy.mockClear();
+		consoleErrorSpy.mockClear();
+		processExitSpy.mockClear();
+	});
+
+	it('should connect to MongoDB successfully', async () => {
+		mockedMongoose.connect.mockResolvedValueOnce(mongoose);
+
+		await connectDB();
+
+		expect(mockedMongoose.connect).toHaveBeenCalledTimes(1);
+		expect(mockedMongoose.connect).toHaveBeenCalledWith(
+			process.env.MONGO_URI,
+			{
+				retryWrites: false,
+				ssl: true
+			}
+		);
+		expect(consoleLogSpy).toHaveBeenCalledWith('Connected to Azure Cosmos DB (MongoDB API)');
+	});
+
+	it('should handle connection failure and exit process', async () => {
+		const mockError = new Error('Connection failed');
+		mockedMongoose.connect.mockRejectedValueOnce(mockError);
+
+		await expect(connectDB()).rejects.toThrow('process.exit called');
+
+		expect(mockedMongoose.connect).toHaveBeenCalledTimes(1);
+		expect(consoleErrorSpy).toHaveBeenCalledWith('MongoDB connection failed:', mockError);
+		expect(processExitSpy).toHaveBeenCalledWith(1);
+	});
+
+	it('should use environment variable for connection string', async () => {
+		const testUri = 'mongodb+srv://custom:uri@test.mongodb.net/custom?retryWrites=false&ssl=true';
+		process.env.MONGO_URI = testUri;
+		mockedMongoose.connect.mockResolvedValueOnce(mongoose);
+
+		await connectDB();
+
+		expect(mockedMongoose.connect).toHaveBeenCalledWith(testUri, {
+			retryWrites: false,
+			ssl: true
+		});
+	});
+});

server/src/database/connection/mongoose.ts

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+import mongoose from 'mongoose';
+
+const connectDB = async (): Promise<void> => {
+	try {
+		await mongoose.connect(process.env.MONGO_URI as string, {
+			retryWrites: false,
+			ssl: true
+		});
+		console.log('Connected to Azure Cosmos DB (MongoDB API)');
+	} catch (error) {
+		console.error('MongoDB connection failed:', error);
+		process.exit(1);
+	}
+};
+
+export default connectDB;

server/src/database/index.ts

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+// Connection setup
+export { default as connectDB } from './connection/mongoose';
+
+// Type exports
+// export * from './types/user.type';
+// export * from './types/survey.type';
+// export * from './types/seed.type';
+
+// Repository exports
+// export * from './repositories/user.repository';
+// export * from './repositories/survey.repository';
+// export * from './repositories/seed.repository';

server/src/database/models/seed.model.ts

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+// TODO: Implement Seed mongoose model

server/src/database/models/survey.model.ts

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+// TODO: Implement Survey mongoose model

server/src/database/models/user.model.ts

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+// TODO: Implement User mongoose model

server/src/database/repositories/seed.repository.ts

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+// TODO: Implement Seed repository

server/src/database/repositories/survey.repository.ts

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+// TODO: Implement Survey repository

server/src/database/repositories/user.repository.ts

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+// TODO: Implement User repository

server/src/database/types/seed.type.ts

@@ -0,0 +1 @@
+// TODO: Implement Seed type interface + Zod validation