GlobalWaves Project

Author: BIRLEANU TEODOR MATEI 324CA

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Overview

The GlobalWaves project is a Spotify-like application designed to manage users, songs, podcasts, and playback functionality. It includes features for generating user-specific statistics, monetization management, recommendations, and detailed playback tracking. The program also incorporates robust design patterns for scalability and maintainability.

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Functionalities

1. Statistics Generation

• Tracks playback statistics for albums, songs, artists, and podcasts.
• Updates the number of listens dynamically based on playback data.
• Handles time-based statistics using the listening method to track content consumption between actions like loading or searching.

2. Notifications

• All users can receive notifications about new albums, merchandise, or events.
• Notifications are managed through a dedicated class containing their name and description.

3. Recommendations

• Recommends songs of the same genre as the currently playing one if the song has been played for at least 30 seconds.
• Uses a random utility to generate and display recommendations.

4. Playback and State Management

• Allows playback of albums, songs, and podcasts, with detailed tracking of what has been consumed.
• Simulates playback pause and resume when users go offline or return online, using the updateTimestamp method.

5. End-of-Program Summary

• Provides a summary of playback data, including artist details and consumption statistics.
• Uses the EndProgramOutput class to aggregate and display the results.

6. Content Management

• Supports adding, deleting, and modifying users, songs, albums, and podcasts.
• Ensures proper cascading deletions (e.g., deleting an album also removes its songs).

7. Page Navigation

• Implements a navigation system to move between pages (e.g., user playlists, announcements, albums).
• Tracks the current and previous pages to enhance user interaction.

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Design Patterns

1. Singleton Pattern

• Ensures a single instance of the Admin class is used throughout the application.
• Provides a global access point for managing users, songs, and podcasts.

2. Command Pattern

• Simplifies navigation between pages and the execution of commands.
• Allows easy extension of commands by encapsulating operations in a command interface.

3. Factory Pattern

• Used in the PageFactory class to dynamically create pages based on their type.
• Provides a modular and extensible solution for page creation and management.

4. Strategy Pattern

• Implements shuffle functionality for playlists.
• Encapsulates the shuffle logic in a ShuffleStrategy interface and a RandomStrategy class for reuse across the program.

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Key Classes

1. CommandRunner

   • Centralizes command execution and connects with the Main class for user input handling.

2. User

   • Manages user-specific data, including playback statistics, notifications, and recommendations.

3. Admin

   • Handles global data storage and operations for users, songs, and podcasts.
   • Ensures proper cascading updates when modifying the system's content.

4. EndProgramOutput

   • Aggregates playback statistics and artist data for the program's final summary.

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Highlights

• Comprehensive playback tracking and user-specific statistics.
• Scalable design using well-known patterns for maintainability.
• Enhanced user experience through personalized notifications and recommendations.
• Robust management of content and playback state.

The GlobalWaves project showcases efficient and modular software design, making it a versatile and powerful application for managing digital media content.