Fix Home Assistant energy Sankey diagram

configuration.yaml

frontend:
  extra_module_url:
    - /local/energy-rename.js

energy-rename.js

(() => {
  const SUBSTITUTIONS = {
    "ui.panel.lovelace.cards.energy.energy_devices_detail_graph.untracked_consumption":
      "Came in a fluffer",
    "ui.panel.lovelace.cards.energy.energy_devices_graph.untracked_consumption":
      "Came in a fluffer",
  };

  const originalFetch = window.fetch;

  window.fetch = async (...args) => {
    const response = await originalFetch(...args);

    const url =
      typeof args[0] === "string" ? args[0] : args[0]?.url ?? "";

    if (!url.includes("/translations/") || !url.endsWith(".json")) {
      return response;
    }

    const data = await response.clone().json();

    let modified = false;
    for (const [key, value] of Object.entries(SUBSTITUTIONS)) {
      if (data[key] !== undefined) {
        data[key] = value;
        modified = true;
      }
    }

    if (!modified) return response;

    return new Response(JSON.stringify(data), {
      status: response.status,
      statusText: response.statusText,
      headers: new Headers(response.headers),
    });
  };
})();