import { hilog } from '@kit.PerformanceAnalysisKit';
import fs from '@ohos.file.fs';
import fileIO from '@ohos.fileio';
import { Context } from '@kit.AbilityKit';
//import OCCTRender from 'libocctrender.so';

const DOMAIN = 0x0000;
const TAG = 'ModelView';

@Component
export struct ModelView {
  private displayController: XComponentController = new XComponentController();
  private displayContrId: string = 'OCCTRenderer'
  @State modelPath: string = '';
  @State modelName:string='model.step';
  @State nativeWindow:string='';
  @State loadStatus: string = '未测试';

  aboutToAppear() {
    this.copyRawFileToSandbox();
  }
  async loadNativeLibrary() {
    try {
      let NaviteOCCT = await import("libopencax.so")
      console.info(`[NDK] 模块类型: ${typeof NaviteOCCT}`);
      console.info(`[NDK] 模块值: ${JSON.stringify(NaviteOCCT)}`);
      console.info(`[NDK] 所有属性: ${Object.keys(NaviteOCCT).join(', ')}`);
      if (!NaviteOCCT) throw new Error("模块为 undefined");
    } catch (e) {
      console.error(`[NDK] 加载失败: ${e.message}`, e);
      // 此处会触发你看到的错误
    }
  }
  async copyRawFileToSandbox() {
  try {
    const context = getContext(this);
    this.modelPath = `${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(this.modelPath)) {
      fs.unlinkSync(this.modelPath);
    }
    const fd = fileIO.openSync(this.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:', this.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(){
        Button('加载模型').onClick(()=>{
          try {
            console.info('Model copied to:', this.modelPath);
            // 调用 native 加载
            //OCCTRender.loadModel(this.displayContrId, this.modelPath);
          } catch (e) {
            hilog.error(0x0000, 'ModelView', `LoadModel Failed: ${JSON.stringify(e)}`);
          }
        })
        Button('测试模块加载').onClick(async()=>{
          this.loadNativeLibrary();
        })
        Button('测试so是否存在').onClick(()=>{
          try {
            fs.accessSync('libs/x86_64/libopencax.so');
            console.info("动态库存在!");
          } catch (e) {
            console.error("动态库不存在!");
          }
        })
      }
      XComponent({
        id: this.displayContrId,
        type: 'surface',
        controller: this.displayController
      })
        .width('100%')
        .height('100%')
        .backgroundColor('#333333');
    }
    .width('100%')
    .height('100%');
  }
}