perf: Optimization of recording function on mobile devices

[shaohuzhang1]

perf: Optimization of recording function on mobile devices

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[shaohuzhang1]

The provided code seems to be correctly implementing a mobile audio recording feature using El-Cli components. However, here are some recommendations for improvement:

1. Error Handling

Ensure that all error handling is comprehensive. The current implementation doesn't have extensive error handling logic.

2. Callback Function

In the open method of RecorderManage, consider adding more detailed logging or notifications when callbacks are used.

3. Cleanup and Rescanning Permissions

If permissions change after initialization, add mechanisms such as rescans during permission denial scenarios to ensure functionality remains consistent.

4. Refactoring

Consider refactoring repetitive code patterns like the microphone toggle button into a reusable component if applicable.

Suggestions

Improved Audio Recording Management:

class RecorderManage {
  private recorder?: Recordable
  uploadRecording: (blob: Blob, duration: number) =>void;

  constructor(uploadRecording: (blob: Blob, duration: number) => void) {
    this.uploadRecording = uploadRecording;
  }

  open(callback?: () => void): Promise<void> {
    return new Promise((resolve, reject) => {
      const config: RecorderConfig = {
        type: 'mp3',
        bitRate: 128,
      };

      Recorder.create(config).then(recorder => {
        this.recorder = recorder;
        recorder.start();
        resolve();

        if (callback) {
          callback();
        }
      }).catch(error => {
        console.error("Failed to start recording:", error);
        reject(error);
      });

      setTimeout(() => {
        recorder.stop().then(blob => {
          let startTime = Date.now() - timestamp;
          startTime /= 1000; // Convert milliseconds to seconds
          uploadRecording(blob, startTime);
          this.recorder!.stop(); // Explicitly stop again to release resources
          this.recorder = undefined;
          resolve();
        }).catch(error => {
          console.error("Failed to process recorded file:", error);
          reject(error);
        });
      }, recTime * SECOND);
    }); // Close Promise
  }

  close(): void {
    this.recorder?.clearDataForTest();
    this.recorder?.destroy();
    this.recorder = undefined;
  }

  destroy(): void {
    this.close();
  }

  private errorHandler(errType: string | null, errStack: StackFrame[]): void {
    throw new Error(`${errType}: ${JSON.stringify(stack)}\n`);
  }

  private errorCallBack(e: unknown): void {
    if (!(e instanceof DOMException)) {
      throw e;
    }
    console.warn("Error during recording:", { e });
  }
}

Enhanced Code Clarity:

• Ensure comments explain key parts of the code.
• Consider breaking down complex logic into smaller functions for better readability.

This revised version addresses some issues with error management and provides additional flexibility in managing the recording lifecycle. Adjustments may need to be made based on specific requirements and application context.