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55// Register the settings page, then the convergence/settings service, then
// the host events that change what the page shows. The page loads the first
// time it is opened, not at activation.
import * as Effect from "effect/Effect";
import * as Stream from "effect/Stream";
import { Events, Services, Views, runPlugin } from "convergence/effect";
import type { HostEvents } from "convergence";
import { SettingsPage } from "./controller.ts";
import { Settings as SettingsService } from "./contract.ts";
import { renderSettings } from "./views/page.ts";

const program = Effect.gen(function* () {
  const page = yield* SettingsPage;
  const views = yield* Views;
  page.views.push(
    yield* views.slot("center", (ctx) => renderSettings(ctx, page), {
      on: [
        "app_state",
        "agents_changed",
        "plugins_changed",
        "updates_changed",
        "keybindings_changed",
        "plugin_settings_changed",
      ],
    }),
  );
  const services = yield* Services;
  yield* services.provide(SettingsService, {
    showShortcuts: ({ query }) => page.showShortcuts(query),
  });
  const events = yield* Events;
  // Every listener fires its effect as its own fork, as the original's
  // async listeners did; a failure is logged, not propagated.
  const follow = <E extends keyof HostEvents, R>(
    name: E,
    run: (event: HostEvents[E]) => Effect.Effect<void, unknown, R>,
  ) =>
    events.stream(name).pipe(
      Stream.runForEach((event) => Effect.forkScoped(run(event).pipe(Effect.ignore), { startImmediately: true })),
      Effect.ignore,
      Effect.forkScoped({ startImmediately: true }),
    );
  yield* follow("keybindings_changed", () => page.loadKeys());
  yield* follow("plugin_settings_changed", (event) =>
    page.state.sections[event.plugin] ? page.loadSection(event.plugin) : Effect.void,
  );
  yield* follow("agents_changed", () => page.load());
  yield* follow("plugins_changed", () => page.load());
  // A plugin enabled or turned off, or a grant given or taken back.
  yield* follow("access_changed", () => page.load());
  yield* follow("workspaces_changed", () => page.load());
  yield* follow("updates_changed", () => page.refreshUpdates());
});

export const activate = runPlugin(SettingsPage.layer, program);