Basic Planning

Basic Planning

Development Environment

• C++ 17
• Qt 6

Third-Party Libraries

• HTTP: cpr / asio, with plans to support various download protocols later: aria2
• JSON: nlohmann
• Logging: spdlog
• Installer: NSIS, with the option to use dulib for UI customization and incremental updates in the future

Structure

• Separation of Logic and Widget layers
• HTTP client class can be used as a standalone library
• Download service or features involving download URL parsing
• Version detection and update functionality with customizable protocols, utilizing the HTTP client class for network requests and downloads
• Optional analytics library for tracking software usage frequency (for learning purposes)

Development Challenges

• Multithreaded file downloading (considering thread pool management)
• Resumable downloads
• Handling cookies and anti-hotlinking issues
• Browser extension development

Multithreaded File Downloading

• Downloads different segments of a file using multiple threads, where each thread downloads a specific byte range.
• Updates the overall progress by fetching the number of bytes downloaded in each thread.

Resumable Downloads

• Implemented through the Range request header, allowing downloads to resume from a specific byte offset.

Code Naming Conventions

#pragma once
#include <QWidget>

enum class EnumDemo { One, Two, Three };

class MainWindow : public QWidget {
    Q_OBJECT
public:
    explicit MainWindow(QWidget* parent = nullptr);
    ~MainWindow() override;
    void funcOne();

private:
    Ui::MainWindow* ui;
    QString name;
};

Git Development Process

• Clone the repository and develop in your own fork
• Branch naming conventions:
  • feature: for new feature development
  • bugfix: for bug fixing
  • hotfix: for urgent bug fixes
• Once development is complete, submit a pull request (PR) for review and merge
• Reviewers conduct code review, and upon approval, the changes are merged into the main repository

Constraints

• Avoid writing to the registry as it hinders cross-platform compatibility and increases user burden, possibly leading to residual files during uninstallation

Future Plans

• Support for downloading FTP, BT, and magnet links
• Tracker support
• Consideration of utilizing scripting languages (Python, Lua) for certain tasks