Netflix-System-Design.md

Designing an Streaming Services Like Netflix

In this article, we will explore the object-oriented design and implementation of a Streaming Services using C++.

System Requirements:

1. User Account Management:

Allow users to create accounts, log in, and log out. Manage user profiles, preferences, and viewing history.

2. Content Catalog:

Maintain a catalog of available movies and TV shows. Categorize content based on genres, release date, etc.

3. Video Playback:

Enable users to play, pause, resume, and stop video playback. Support adaptive streaming for different internet speeds.

4. Offline Viewing:

Allow users to download content for offline viewing. Manage downloaded content securely and efficiently.

5. Recommendation System:

Provide personalized content recommendations based on user behavior and preferences.

6. Search Functionality:

Implement a robust search feature to help users find specific movies or TV shows.

7. Subscription Management:

Handle subscription plans, billing, and payment processing. Allow users to upgrade, downgrade, or cancel their subscription.

8. Social Features:

Implement social features such as sharing, liking, and commenting on content. Enable users to see what their friends are watching.

Core Use Cases:

1. User Registration and Authentication:

Users can create accounts, log in, and log out securely.

2. Browsing and Searching:

Users can browse the content catalog, search for specific titles, and view details.

3. Video Playback:

Users can play, pause, resume, and stop video playback.

4. Offline Viewing:

Users can download content for offline viewing and manage downloads.

5. Recommendation System:

Users receive personalized content recommendations.

6. Subscription Management:

Users can manage their subscription plans, billing, and payment details.

7. Social Interaction:

Users can engage in social features like sharing, liking, and commenting on content.

Key Classes:

StreamingServiceSystem:

Manages the overall streaming service. Coordinates interactions between different components.

1. User:

Represents a user account with information like username, password, and preferences.

2. ContentCatalog:

Manages the catalog of movies and TV shows. Categorizes content and provides details for display.

3. VideoPlayer:

Handles video playback functionalities such as play, pause, and stop.

4. DownloadManager:

Manages the downloading and storage of content for offline viewing.

5. RecommendationEngine:

Generates personalized content recommendations for users.

6. SubscriptionManager:

Manages subscription plans, billing, and payment processing.

7. SocialInteractionHandler:

Handles social features like sharing, liking, and commenting. This design provides a foundation for building a streaming service and can be further expanded and refined based on specific requirements and technical considerations.

#include <iostream>
#include <vector>
#include <unordered_map>

class User {
public:
    User(std::string username, std::string password) : username(username), password(password) {}

    // Other user-related methods and attributes
private:
    std::string username;
    std::string password;
    // Other user-related attributes
};

class Content {
public:
    Content(std::string title, std::string genre, int releaseYear) : title(title), genre(genre), releaseYear(releaseYear) {}

    // Other content-related methods and attributes
private:
    std::string title;
    std::string genre;
    int releaseYear;
    // Other content-related attributes
};

class StreamingServiceSystem {
public:
    void addUser(User user) {
        // Logic to add a user
    }

    void addContent(Content content) {
        // Logic to add content to the catalog
    }

    // Other methods for managing the streaming service
private:
    std::vector<User> users;
    std::vector<Content> contentCatalog;
    // Other attributes and data structures
};

class VideoPlayer {
public:
    void playContent(Content content) {
        // Logic to play video content
    }

    void pauseContent() {
        // Logic to pause video content
    }

    void stopContent() {
        // Logic to stop video content
    }

    // Other methods for video playback
};

class DownloadManager {
public:
    void downloadContent(User user, Content content) {
        // Logic to download content for offline viewing
    }

    void manageDownloads(User user) {
        // Logic to manage downloaded content
    }

    // Other methods for download management
};

class RecommendationEngine {
public:
    void generateRecommendations(User user) {
        // Logic to generate personalized recommendations
    }

    // Other methods for recommendation generation
};

class SubscriptionManager {
public:
    void manageSubscription(User user) {
        // Logic to handle subscription plans, billing, and payment processing
    }

    // Other methods for subscription management
};

class SocialInteractionHandler {
public:
    void shareContent(User user, Content content) {
        // Logic to handle content sharing
    }

    void likeContent(User user, Content content) {
        // Logic to handle liking content
    }

    void commentOnContent(User user, Content content, std::string comment) {
        // Logic to handle commenting on content
    }

    // Other methods for social interactions
};

int main() {
    // Example usage
    StreamingServiceSystem streamingService;
    User user1("Alice", "password123");
    Content content1("Movie 1", "Action", 2022);

    streamingService.addUser(user1);
    streamingService.addContent(content1);

    VideoPlayer videoPlayer;
    videoPlayer.playContent(content1);

    DownloadManager downloadManager;
    downloadManager.downloadContent(user1, content1);
    downloadManager.manageDownloads(user1);

    RecommendationEngine recommendationEngine;
    recommendationEngine.generateRecommendations(user1);

    SubscriptionManager subscriptionManager;
    subscriptionManager.manageSubscription(user1);

    SocialInteractionHandler socialInteractionHandler;
    socialInteractionHandler.likeContent(user1, content1);
    socialInteractionHandler.commentOnContent(user1, content1, "Great movie!");

    return 0;
}