"""Where Steward's templates live, for the guards that read every one, and a
way to render a plugin's template in a test."""
import pathlib

from jinja2 import ChoiceLoader, FileSystemLoader
from quart import render_template

import steward

REPO = pathlib.Path(steward.__file__).parent.parent


def template_files() -> list[pathlib.Path]:
    """Every first-party .html template: core and each plugin's."""
    roots = [REPO / "steward" / "templates", *(REPO / "plugins").glob("*/templates")]
    return sorted(p for root in roots for p in root.rglob("*.html"))


async def render_plugin_template(app, plugin: str, name: str, /, **ctx) -> str:
    """Render plugins/<plugin>/templates/<name> with quart.render_template,
    whether or not the plugin is enabled in this app: the plugin's template
    folder goes ahead of the app's loader for the one render. Call inside
    app.test_request_context()."""
    loader = app.jinja_env.loader
    app.jinja_env.loader = ChoiceLoader(
        [FileSystemLoader(str(REPO / "plugins" / plugin / "templates")), loader])
    try:
        return await render_template(name, **ctx)
    finally:
        app.jinja_env.loader = loader