import { ClosureComponent, VnodeDOM } from "mithril";
import { m } from "../components.ts";
import { QueryResponse, evaluateExpression } from "../store.ts";
import { FlatDevice } from "../../lib/ui/db.ts";
import { Expression } from "../../lib/types.ts";

interface Attrs {
  device: FlatDevice;
  parameters: Record<
    string,
    { type?: Expression; label: Expression; parameter: Expression }
  >;
  deviceQuery: QueryResponse;
}

const component: ClosureComponent<Attrs> = () => {
  return {
    view: (vnode) => {
      const device = vnode.attrs.device;

      const rows = Object.values(vnode.attrs.parameters).map((parameter) => {
        const type = evaluateExpression(parameter.type, device);
        const p = m.context(
          {
            device: device,
            parameter: parameter.parameter,
          },
          (type as string) || "parameter",
          parameter,
        );

        return m(
          "tr",
          {
            oncreate: (vn) => {
              (vn.dom as HTMLElement).style.display = (p as VnodeDOM).dom
                ? ""
                : "none";
            },
            onupdate: (vn) => {
              (vn.dom as HTMLElement).style.display = (p as VnodeDOM).dom
                ? ""
                : "none";
            },
          },
          m("th", evaluateExpression(parameter.label, device)),
          m("td", p),
        );
      });

      return m(
        "loading",
        { queries: [vnode.attrs.deviceQuery] },
        m("table.parameter-list", rows),
      );
    },
  };
};

export default component;