import { hilog } from '@kit.PerformanceAnalysisKit';
import fs from '@ohos.file.fs';
import fileIO from '@ohos.fileio';
import {NodeContent} from '@kit.ArkUI';
import NativeOpenCAX from 'libopencax.so';

const DOMAIN = 0x0000;
let modelPath: string = '';
export function OCCTLoadModel(Command: undefined, Param:undefined) {
  try {
    NativeOpenCAX.loadModel(modelPath);
    console.info('Model copied to:', modelPath);
  } catch (e) {
    hilog.error(0x0000, 'ModelView', `LoadModel Failed: ${JSON.stringify(e)}`);
  }
}
@Component
export struct ModelView {
  private displayController: XComponentController = new XComponentController();
  private displayContrId: string = 'OCCTRender';
  @State modelName:string='2027.stp';
  @State currentStatus: string = 'init';
  private nodeContent: NodeContent = new NodeContent();


  aboutToAppear() {
    NativeOpenCAX.createNativeNode(this.nodeContent);
    this.copyRawFileToSandbox();
  }
  async copyRawFileToSandbox() {
  try {
    const context = getContext(this);
    modelPath = `${context.filesDir}/${this.modelName}`;
    const arrayBuffer:Uint8Array = await context.resourceManager.getRawFileContent(this.modelName);
    const buffer = arrayBuffer.buffer;
    console.log('Raw file size:', arrayBuffer.byteLength);
    if (fs.accessSync(modelPath)) {
      fs.unlinkSync(modelPath);
    }
    const fd = fileIO.openSync(modelPath, fs.OpenMode.CREATE | fs.OpenMode.READ_WRITE,0o666);
    const bytesWritten = fileIO.writeSync(fd, buffer);
    console.log('Bytes written:', bytesWritten);
    fileIO.closeSync(fd);
    console.log('SanBox File:', arrayBuffer.byteLength);
    console.log('WriteModelPath:', modelPath);
  } catch (err) {
    let msg = 'Unknown error';
    if (err instanceof Error) {
      msg = err.message;
    } else if (typeof err === 'string') {
      msg = err;
    }
    console.error(`Copy failed: ${msg}`);
    throw new Error(`Failed to copy ${this.modelName} to sandbox: ${msg}`);
  }
}
  build() {
    Flex({ direction: FlexDirection.Column }) {
      Row(){
        ContentSlot(this.nodeContent);
      }.layoutWeight(1)
    }
    .width('100%')
    .height('100%');
  }
}