app.py

from logging import getLogger
from pathlib import Path

from sanic import Sanic, response

from docs_app.examples import get_normalized_example_name, load_examples
from reactpy import component
from reactpy.backend.sanic import Options, configure, use_request
from reactpy.types import ComponentConstructor

THIS_DIR = Path(__file__).parent
DOCS_DIR = THIS_DIR.parent
DOCS_BUILD_DIR = DOCS_DIR / "build"

REACTPY_MODEL_SERVER_URL_PREFIX = "/_reactpy"

logger = getLogger(__name__)


REACTPY_MODEL_SERVER_URL_PREFIX = "/_reactpy"


@component
def Example():
    raw_view_id = use_request().get_args().get("view_id")
    view_id = get_normalized_example_name(raw_view_id)
    return _get_examples()[view_id]()


def _get_examples():
    if not _EXAMPLES:
        _EXAMPLES.update(load_examples())
    return _EXAMPLES


def reload_examples():
    _EXAMPLES.clear()
    _EXAMPLES.update(load_examples())


_EXAMPLES: dict[str, ComponentConstructor] = {}


def make_app(name: str):
    app = Sanic(name)

    app.static("/docs", str(DOCS_BUILD_DIR))

    @app.route("/")
    async def forward_to_index(_):
        return response.redirect("/docs/index.html")

    configure(
        app,
        Example,
        Options(url_prefix=REACTPY_MODEL_SERVER_URL_PREFIX),
    )

    return app