# CLI Framework - Phase 1

**Status**: Planned
**Phase**: 1 - Build WITH Zexus
**Priority**: Medium
**Estimated Effort**: 2-3 months

## Overview

Build a comprehensive CLI framework in Zexus for creating command-line applications with:
- Argument parsing
- Command routing
- Flag/option handling
- Help generation
- Interactive prompts
- Progress bars
- Colored output

## Quick Example

```zexus
use {CLI, command, flag, argument} from "zexus/cli"

let app = CLI({
    name: "myapp",
    version: "1.0.0",
    description: "My awesome CLI tool"
})

# Define command
app.command("deploy", {
    description: "Deploy application",
    flags: [
        flag("environment", {
            type: "string",
            short: "e",
            default: "production",
            description: "Deployment environment"
        }),
        flag("force", {
            type: "boolean",
            short: "f",
            description: "Force deployment"
        })
    ],
    action: action(options) {
        let env = options.environment
        let force = options.force
        
        print("Deploying to " + env)
        if force {
            print("Force mode enabled")
        }
        
        # Deployment logic...
    }
})

# Run
app.run()
```

## Features

### Command Routing
```zexus
app.command("users list", ...)
app.command("users create", ...)
app.command("users delete", ...)
```

### Interactive Prompts
```zexus
use {prompt, confirm, select} from "zexus/cli"

let name = prompt("Enter your name:")
let proceed = confirm("Continue?")
let choice = select("Choose option:", ["A", "B", "C"])
```

### Progress Bars
```zexus
use {progress} from "zexus/cli"

let bar = progress(100)
for each i in range(0, 100) {
    # Do work
    bar.update(i)
}
bar.complete()
```

### Colored Output
```zexus
use {color} from "zexus/cli"

print(color.green("Success!"))
print(color.red("Error!"))
print(color.yellow("Warning!"))
```

## Related Documentation

- [Ecosystem Strategy](../../ECOSYSTEM_STRATEGY.md)
- [@zexus/cli Package (Phase 3)](../../packages/ZEXUS_CLI_PACKAGE.md)

---

**Status**: Planning
**Last Updated**: 2025-12-29
