import { dialog, ipcMain } from "electron";
import os from "os";
import {
  findDcmFiles,
  processFilesInBatches,
  structureMetadata,
} from "./core/dicom";
import { EVENT_PARSE_DICOM } from "./ipcEvent";
import PythonManager from "./core/PythonManager";

/**
 * 渲染进程和主进程的事件调度
 */
const registerIpcMainHandlers = (
  mainWindow: Electron.BrowserWindow | null,
  pythonManager: PythonManager
) => {
  if (!mainWindow) return;

  ipcMain.removeAllListeners();

  /**
   * 等待渲染完成再显示窗口
   */
  ipcMain.on("ipc-loaded", () => mainWindow.show());

  /**
   * 解析dicoM
   */
  ipcMain.on(EVENT_PARSE_DICOM, async (event, file: string) => {
    const dirDialog = await dialog.showOpenDialog(mainWindow, {
      properties: ["openDirectory"],
    });
    if (dirDialog.filePaths.length > 0) {
      const filePaths = await findDcmFiles(dirDialog.filePaths[0]);
      const batchSize = os.cpus().length * 1 || 10;
      console.time("分批处理");
      const unraw = await processFilesInBatches(filePaths, batchSize);
      console.timeEnd("分批处理");
      const result = structureMetadata(unraw);
      event.reply(EVENT_PARSE_DICOM + ":RES", result);
    }
  });

  ipcMain.on("python-service", (event, data) => {
    const { running } = data;
    running ? pythonManager.startFlask() : pythonManager.stopFlask();
  });

  ipcMain.on("scan-dicom", async () => {
    const result = await dialog.showOpenDialog({
      properties: ["openDirectory"],
    });
    if (result.canceled) return null;
    const filePaths = result.filePaths[0];
    const dcmPaths = await findDcmFiles(filePaths);
    const items = await processFilesInBatches(dcmPaths, 4);
    const structDicom = await structureMetadata(items);
    Database.getDb().data.posts.push("hello world");
    return structDicom;
  });
};

export default registerIpcMainHandlers;