fusion/packages/desktop/src/preload.ts

import { contextBridge, ipcRenderer } from "electron";
import type { DeepLinkResult, FusionAPI, SystemInfo, UpdateCheckResult } from "./types";

interface ShellConnectionProfile {
  id: string;
  name: string;
  serverUrl: string;
  authToken?: string | null;
  createdAt: string;
  updatedAt: string;
  lastUsedAt?: string | null;
}

interface ShellConnectionProfileInput {
  id?: string;
  name: string;
  serverUrl: string;
  authToken?: string | null;
}

interface ShellConnectionState {
  host: "web" | "mobile-shell" | "desktop-shell";
  desktopModeState?: {
    isFirstRun: boolean;
    desktopMode: "local" | "remote" | null;
  };
  desktopMode?: "local" | "remote";
  activeProfileId: string | null;
  profiles: ShellConnectionProfile[];
  localRuntime?: {
    source: "embedded-local" | "external-cli" | "none";
    state: "stopped" | "starting" | "running" | "error";
    port?: number;
    baseUrl?: string;
    error?: string;
  };
}

export type FusionDesktopAPI = FusionAPI;

type WindowControlAction = "minimize" | "maximize" | "close" | "isMaximized";

const electronApi = {
  // Window control
  minimize: (): Promise<void> => ipcRenderer.invoke("window:minimize"),
  maximize: (): Promise<boolean> => ipcRenderer.invoke("window:maximize"),
  close: (): Promise<void> => ipcRenderer.invoke("window:close"),
  isMaximized: (): Promise<boolean> => ipcRenderer.invoke("window:isMaximized"),

  // App info
  getSystemInfo: (): Promise<SystemInfo> => ipcRenderer.invoke("app:getSystemInfo"),
  checkForUpdates: (): Promise<UpdateCheckResult> => ipcRenderer.invoke("app:checkForUpdates"),
  getServerPort: (): Promise<number | undefined> => ipcRenderer.invoke("app:getServerPort"),
  getDesktopRuntimeStatus: (): Promise<ShellConnectionState["localRuntime"]> => ipcRenderer.invoke("desktopRuntime:getStatus"),
  startDesktopLocalRuntime: (): Promise<ShellConnectionState["localRuntime"]> => ipcRenderer.invoke("desktopRuntime:startLocal"),
  stopDesktopLocalRuntime: (): Promise<ShellConnectionState["localRuntime"]> => ipcRenderer.invoke("desktopRuntime:stopLocal"),
  getDesktopLaunchMode: (): Promise<"choose" | "local" | "remote"> => ipcRenderer.invoke("desktopLaunchMode:getMode"),
  setDesktopLaunchMode: (mode: "choose" | "local" | "remote"): Promise<"choose" | "local" | "remote"> =>
    ipcRenderer.invoke("desktopLaunchMode:setMode", mode),
  getDesktopLaunchContext: (): Promise<{ mode: "remote"; profileId: string; serverBaseUrl: string; serverLabel?: string; authToken?: string } | null> =>
    ipcRenderer.invoke("desktopLaunchMode:getContext"),
  openConnectionManager: (): Promise<void> => ipcRenderer.invoke("shell:openConnectionManager"),

  // Tray status
  updateTrayStatus: (status: string): Promise<void> => ipcRenderer.invoke("tray:updateStatus", status),

  // Native dialogs
  showExportDialog: (): Promise<string | null> => ipcRenderer.invoke("native:showExportDialog"),
  showImportDialog: (): Promise<string | null> => ipcRenderer.invoke("native:showImportDialog"),

  // Deep link events (main → renderer)
  onDeepLink: (callback: (result: DeepLinkResult) => void): (() => void) => {
    const handler = (_event: Electron.IpcRendererEvent, result: DeepLinkResult) => callback(result);
    ipcRenderer.on("deep-link", handler);
    return () => ipcRenderer.removeListener("deep-link", handler);
  },

  windowControl: async (action: WindowControlAction): Promise<boolean | void> => {
    switch (action) {
      case "minimize":
        return ipcRenderer.invoke("window:minimize");
      case "maximize":
        return ipcRenderer.invoke("window:maximize");
      case "close":
        return ipcRenderer.invoke("window:close");
      case "isMaximized":
        return ipcRenderer.invoke("window:isMaximized");
    }
  },
  getPlatform: (): Promise<"darwin" | "win32" | "linux"> => ipcRenderer.invoke("platform:get"),
  apiRequest: (method: string, path: string, body?: unknown): Promise<unknown> =>
    ipcRenderer.invoke("api-request", { method, path, body }),

  // Auto-updater events (main → renderer)
  onUpdateAvailable: (callback: (info: { version: string }) => void): (() => void) => {
    const handler = (_event: Electron.IpcRendererEvent, info: { version: string }) => callback(info);
    ipcRenderer.on("update-available", handler);
    return () => ipcRenderer.removeListener("update-available", handler);
  },
  onUpdateDownloaded: (callback: () => void): (() => void) => {
    const handler = () => callback();
    ipcRenderer.on("update-downloaded", handler);
    return () => ipcRenderer.removeListener("update-downloaded", handler);
  },
  invoke: (channel: string, payload?: unknown): Promise<unknown> => ipcRenderer.invoke(channel, payload),
};

const fusionShell = {
  getState: (): Promise<ShellConnectionState> => ipcRenderer.invoke("shell:getState"),
  listProfiles: (): Promise<ShellConnectionProfile[]> => ipcRenderer.invoke("shell:listProfiles"),
  saveProfile: (profile: ShellConnectionProfileInput): Promise<ShellConnectionProfile> => ipcRenderer.invoke("shell:saveProfile", profile),
  deleteProfile: (profileId: string): Promise<void> => ipcRenderer.invoke("shell:deleteProfile", profileId),
  setActiveProfile: (profileId: string | null): Promise<ShellConnectionState> => ipcRenderer.invoke("shell:setActiveProfile", profileId),
  getDesktopModeState: (): Promise<{ isFirstRun: boolean; desktopMode: "local" | "remote" | null }> =>
    ipcRenderer.invoke("shell:getDesktopModeState"),
  setDesktopMode: (mode: "local" | "remote"): Promise<ShellConnectionState> => ipcRenderer.invoke("shell:setDesktopMode", mode),
  startQrScan: (): Promise<{ serverUrl: string; authToken?: string | null }> => ipcRenderer.invoke("shell:startQrScan"),
  openConnectionManager: (): Promise<void> => ipcRenderer.invoke("shell:openConnectionManager"),
  subscribe: (listener: (state: ShellConnectionState) => void): (() => void) => {
    const handler = (_event: Electron.IpcRendererEvent, state: ShellConnectionState) => listener(state);
    ipcRenderer.on("shell:state", handler);
    return () => ipcRenderer.removeListener("shell:state", handler);
  },
};

contextBridge.exposeInMainWorld("electronAPI", electronApi);
contextBridge.exposeInMainWorld("fusionAPI", electronApi);
contextBridge.exposeInMainWorld("fusionShell", fusionShell);