/**
 * @executor-js/plugin-desktop-settings/server
 *
 * Zero-server-state plugin. The Desktop Settings panel reads and writes
 * its configuration via Electron IPC (`window.executor.*`), not through
 * the executor server. The server contribution exposes an agent-facing
 * browser handoff tool so a chat flow can still route the user to the
 * Desktop-only settings UI without moving the Basic-auth password
 * through the model context.
 */

import { Effect, Schema } from "effect";

import { definePlugin, tool, type StaticToolSchema } from "@executor-js/sdk/core";

export interface DesktopSettingsPluginOptions {
  readonly webBaseUrl?: string;
}

const schemaToStaticToolSchema = <A, I>(schema: Schema.Decoder<A, I>): StaticToolSchema<A, I> =>
  Schema.toStandardSchemaV1(Schema.toStandardJSONSchemaV1(schema) as never) as StaticToolSchema<
    A,
    I
  >;

const DesktopSettingsOpenOutput = Schema.Struct({
  url: Schema.String,
  flow: Schema.String,
});

const DesktopSettingsOpenOutputStd = schemaToStaticToolSchema(DesktopSettingsOpenOutput);

const resolveWebBaseUrl = (configured: string | undefined): string =>
  (configured ?? "http://localhost:4788").replace(/\/$/, "");

export const desktopSettingsPlugin = definePlugin((options: DesktopSettingsPluginOptions = {}) => ({
  id: "desktop-settings" as const,
  packageName: "@executor-js/plugin-desktop-settings",
  storage: () => ({}),
  staticSources: () => [
    {
      id: "desktopSettings",
      kind: "executor",
      name: "Desktop Settings",
      tools: [
        tool({
          name: "openSettings",
          description:
            "Return the Desktop Settings browser URL for configuring the local sidecar port, Basic-auth requirement, and generated password. This flow must stay in the Desktop UI because password display/regeneration and server restart are Electron IPC operations; never ask the user to paste the password in chat.",
          outputSchema: DesktopSettingsOpenOutputStd,
          execute: () =>
            Effect.succeed({
              url: `${resolveWebBaseUrl(options.webBaseUrl)}/plugins/desktop-settings/`,
              flow: "Open this URL in Executor Desktop. The user can change port/auth or regenerate the password there; then rerun discovery/list tools to observe the restarted server.",
            }),
        }),
      ],
    },
  ],
}));
