Zenith¶

"""Core domain logic with strict typing and immutability."""

from dataclasses import dataclass


@dataclass(frozen=True, slots=True)
class Greeter:
    """Greeting domain entity."""

    recipient: str

    def format(self) -> str:
        """Format greeting with recipient."""
        return f"Hello, {self.recipient}!"

"""Command line interface powered by Typer and Rich."""

from typing import Annotated

import typer
from my_awesome_service.core import Greeter
from rich.console import Console

app = typer.Typer(no_args_is_help=True)
console = Console()


@app.command()
def greet(
    name: Annotated[str, typer.Argument(help="Name to greet.")] = "World",
) -> None:
    """Display a personalized greeting."""
    greeter = Greeter(recipient=name)
    console.print(f"[bold green]✨ {greeter.format()}[/bold green]")

"""Automated CLI test suite with 100% coverage gate."""

from my_awesome_service.cli import app
from typer.testing import CliRunner

runner = CliRunner()


def test_greet() -> None:
    result = runner.invoke(app, ["greet", "Zenith"])
    assert result.exit_code == 0
    assert "✨ Hello, Zenith!" in result.stdout