"""The live-site editor, mounted inside the Studio.

The editor is a whole FastAPI app of its own — sessions, ACL, the Joomla write
adapter, the fleet console. It is mounted rather than merged so it keeps one
implementation: the same code runs standalone on the box that edits a single
site, and here as a Studio tab, with no fork to keep in step.

Its modules import each other by bare name (`import mesh`), which is what lets
them run standalone. Putting this directory on the path preserves that instead
of rewriting every import — and none of those names collide with the Studio's,
which keeps everything under `core.`.
"""
import importlib.util
import sys
from pathlib import Path

HERE = Path(__file__).parent
if str(HERE) not in sys.path:
    sys.path.insert(0, str(HERE))


def build():
    """The editor's ASGI app, with current runtime seams installed."""
    try:
        spec = importlib.util.spec_from_file_location("kyklos_editor_app",
                                                      HERE / "app.py")
        module = importlib.util.module_from_spec(spec)
        sys.modules[spec.name] = module
        spec.loader.exec_module(module)

        try:
            import migration_routes
            migration_routes.install(module.app)
        except Exception as e:
            print(f"[editor] migration route seam unavailable: {type(e).__name__}: {e}",
                  flush=True)

        try:
            import postmeet_routes
            setattr(postmeet_routes, "editor", module)
            postmeet_routes.install(module.app, module)
        except Exception as e:
            print(f"[editor] PostMeet route seam unavailable: {type(e).__name__}: {e}",
                  flush=True)

        try:
            import bridge
            bridge.install(module.app)
        except Exception as e:
            print(f"[editor] Joomla bridge unavailable: {type(e).__name__}: {e}",
                  flush=True)
        return module.app
    except Exception as e:
        print(f"[editor] unavailable: {type(e).__name__}: {e}", flush=True)
        return None