# Use Cases for yosi.ai

This guide covers common use cases for yosi.ai in different development scenarios.

## Table of Contents

- [Web Development](#web-development)
- [Backend Development](#backend-development)
- [Mobile Development](#mobile-development)
- [Data Science](#data-science)
- [DevOps](#devops)
- [Testing](#testing)
- [Learning New Technologies](#learning-new-technologies)
- [Prototyping](#prototyping)

## Web Development

### Generate React Components

```bash
# Generate a basic component
yosi "create a React component named Header with logo and navigation" --output Header.jsx

# Generate a form component
yosi advanced "create a React form component for user registration with validation" --framework react --language jsx --output RegisterForm.jsx

# Generate a custom hook
yosi --language typescript "create a React hook for managing form state" --output useForm.ts
```

### Generate CSS/SCSS

```bash
# Generate CSS for a component
yosi --language css "create CSS styles for a responsive navigation bar" --output navbar.css

# Generate SCSS with variables and mixins
yosi --language scss "create SCSS styles for a card component with different themes" --output card.scss
```

### Generate JavaScript Utilities

```bash
# Generate a date formatting utility
yosi "create a utility function to format dates in different formats" --output dateUtils.js

# Generate a validation library
yosi "create a validation library for email, password, and phone numbers" --output validators.js
```

## Backend Development

### Generate API Endpoints

```bash
# Generate a REST API endpoint
yosi advanced "create an Express.js API endpoint for user authentication" --framework express --output auth.js

# Generate a GraphQL resolver
yosi "create a GraphQL resolver for querying and mutating user data" --output userResolver.js
```

### Generate Database Models

```bash
# Generate a Mongoose model
yosi "create a Mongoose schema and model for a blog post" --output Post.js

# Generate a Sequelize model
yosi "create a Sequelize model for a product with associations" --output Product.js
```

### Generate Server Configuration

```bash
# Generate a Node.js server setup
yosi "create a Node.js server configuration with Express, CORS, and error handling" --output server.js

# Generate a middleware
yosi "create an authentication middleware for JWT verification" --output authMiddleware.js
```

## Mobile Development

### Generate React Native Components

```bash
# Generate a React Native screen
yosi advanced "create a React Native screen for user profile with styling" --framework "react native" --output ProfileScreen.js

# Generate a navigation setup
yosi advanced "create a React Native navigation setup with tab and stack navigators" --framework "react native" --output Navigation.js
```

### Generate Native Code

```bash
# Generate Swift code for iOS
yosi --language swift "create a Swift view controller for a login screen" --output LoginViewController.swift

# Generate Kotlin code for Android
yosi --language kotlin "create a Kotlin activity for a settings screen" --output SettingsActivity.kt
```

## Data Science

### Generate Data Processing Scripts

```bash
# Generate a Python script for data cleaning
yosi --language python "create a Python script to clean and preprocess CSV data" --output data_cleaner.py

# Generate a data visualization script
yosi --language python "create a Python script using matplotlib to visualize sales data" --output visualize_sales.py
```

### Generate Machine Learning Code

```bash
# Generate a model training script
yosi --language python "create a Python script to train a classification model using scikit-learn" --output train_model.py

# Generate a model evaluation script
yosi --language python "create a Python script to evaluate a machine learning model with cross-validation" --output evaluate_model.py
```

## DevOps

### Generate Configuration Files

```bash
# Generate a Docker configuration
yosi --language dockerfile "create a Dockerfile for a Node.js application" --output Dockerfile

# Generate a GitHub Actions workflow
yosi --language yaml "create a GitHub Actions workflow for CI/CD of a Node.js app" --output .github/workflows/ci.yml
```

### Generate Shell Scripts

```bash
# Generate a deployment script
yosi --language bash "create a bash script to deploy an application to a server" --output deploy.sh

# Generate a backup script
yosi --language bash "create a bash script to backup a database" --output backup.sh
```

## Testing

### Generate Unit Tests

```bash
# Generate Jest tests for a React component
yosi advanced "create Jest tests for a Button component with different states" --framework jest --language javascript --output Button.test.js

# Generate Mocha tests for an API
yosi --language javascript "create Mocha tests for user authentication API endpoints" --output auth.test.js
```

### Generate E2E Tests

```bash
# Generate Cypress tests
yosi --language javascript "create Cypress tests for a user registration flow" --output register.spec.js

# Generate Selenium tests
yosi --language python "create Selenium tests for a login page" --output test_login.py
```

## Learning New Technologies

### Generate Example Code

```bash
# Generate a React hooks example
yosi "create an example of React hooks (useState, useEffect, useContext)" --output hooks-example.jsx

# Generate a GraphQL example
yosi "create an example of a GraphQL server with Apollo" --output graphql-example.js
```

### Generate Tutorial Code

```bash
# Generate a step-by-step tutorial
yosi --language markdown "create a tutorial on building a REST API with Node.js and Express" --output rest-api-tutorial.md

# Generate code snippets for a tutorial
yosi "create code snippets for a tutorial on React state management" --output state-management-snippets.js
```

## Prototyping

### Generate MVP Components

```bash
# Generate a quick prototype
yosi advanced "create a React dashboard with charts and tables" --framework react --language jsx --output Dashboard.jsx

# Generate a landing page
yosi --language html "create an HTML landing page with CSS for a SaaS product" --output landing.html
```

### Generate Mockups

```bash
# Generate API mock data
yosi --language json "create mock data for a user API with 10 sample users" --output mock-users.json

# Generate a mock service
yosi "create a mock service for simulating API responses" --output mockService.js
```