add new init command for generate boilerplate in flat or src layout

src/argenta/_cli/__main__.py

@@ -1,12 +1,12 @@
 from typer import Typer
 
-from .commands import run_handler
+from .commands import run_handler, init_handler
 
 
 def main():
     app = Typer()
     app.command("run")(run_handler)
-    app.command("init")(run_handler)
+    app.command("init")(init_handler)
     app()
 
 if __name__ == '__main__':

src/argenta/_cli/commands/__init__.py

@@ -1 +1,2 @@
-from .run import run_handler
+from .run import run_handler as run_handler
+from .init import init_handler as init_handler

src/argenta/_cli/commands/init.py

@@ -0,0 +1,108 @@
+__all__ = ["init_handler"]
+
+from pathlib import Path
+from typing import Literal
+
+GITIGNORE_CONTENT = """
+__pycache__/
+*.py[cod]
+.env
+.venv/
+env/
+"""
+
+FLAT_MAIN_TEMPLATE = """
+from argenta import Orchestrator, App
+
+from handlers import router
+
+
+def main():
+    app = App()
+    app.include_router(router)
+
+    orchestrator = Orchestrator()
+    orchestrator.start_polling(app)
+
+if __name__ == "__main__":
+    main()
+"""
+
+FLAT_HANDLERS_TEMPLATE = """
+from argenta import Router, Response
+
+router = Router("Hello command")
+
+@router.command("hello")
+def start_handler(response: Response):
+   print("Hello world!")
+"""
+
+SRC_MAIN_TEMPLATE = """
+from argenta import Orchestrator, App
+
+from .routers import router
+
+
+def main():
+    app = App()
+    app.include_router(router)
+
+    orchestrator = Orchestrator()
+    orchestrator.start_polling(app)
+
+if __name__ == "__main__":
+    main()
+"""
+
+SRC_ROUTERS_TEMPLATE = """
+from argenta import Router
+from .handlers.hello_world_handler import hello_handler
+
+router = Router()
+
+router.command('hello')(hello_handler)
+"""
+
+SRC_HANDLER_TEMPLATE = """
+from argenta import Response
+
+
+def hello_handler(response: Response) -> None:
+    print("Hello world!")
+
+"""
+
+
+def create_file(path: Path, content: str) -> None:
+    if not path.exists():
+        path.parent.mkdir(parents=True, exist_ok=True)
+        path.write_text(content.strip(), encoding="utf-8")
+        print(f"Created: {path}")
+    else:
+        print(f"Skipped: {path} (already exists)")
+
+
+def init_handler(with_arch: Literal["flat", "src"] = "flat") -> None:
+    cwd = Path.cwd()
+    project_name = cwd.name.lower().replace(" ", "_")
+
+    create_file(cwd / ".gitignore", GITIGNORE_CONTENT)
+
+    if with_arch == "flat":
+        create_file(cwd / "main.py", FLAT_MAIN_TEMPLATE)
+        create_file(cwd / "handlers.py", FLAT_HANDLERS_TEMPLATE)
+
+    elif with_arch == "src":
+        base_pkg = cwd / "src" / project_name / "application"
+
+        create_file(base_pkg / "__main__.py", SRC_MAIN_TEMPLATE)
+        create_file(base_pkg / "routers.py", SRC_ROUTERS_TEMPLATE)
+        create_file(base_pkg / "handlers" / "hello_world_handler.py", SRC_HANDLER_TEMPLATE)
+
+        create_file(cwd / "src" / "__init__.py", "")
+        create_file(cwd / "src" / project_name / "__init__.py", "")
+        create_file(base_pkg / "__init__.py", "")
+        create_file(base_pkg / "handlers" / "__init__.py", "")
+
+    print("\nInitialization complete.")