📚 Software Re-Engineering – Library Management System

📌 Project Overview

This project is part of the Software Re-Engineering assignment course. The target was to choose an existing open-source software baseline, analyze its architecture, fix legacy dependency bugs, and introduce functional/design improvements.

• Original Base Repository: Prakarsha/Library-Management-System
• Re-Engineered Repository: Usman-ali31/Software-ReEngineering-Library-System

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🚀 Re-Engineering Modifications Made

1. Legacy Library & UI Crash Fixes (Refactoring)

• Pillow Migration: Upgraded deprecated Image.ANTIALIAS calls to modern Image.Resampling.LANCZOS standard to prevent execution crashes on modern Python environments.
• Canvas Fallback Handler: Implemented an exception-handling fallback design that renders custom colored UI banners when local PNG background images are missing, preventing blank screen rendering.

2. Live Dashboard Real-Time Counter (New Feature)

• Added a centered dynamic dashboard header panel on the main menu.
• Real-time querying against the SQLite database (test.db) to compute total available book copies and active issued books count.

3. Dynamic Overdue Fine Calculation Module (Functional Improvement)

• Modified the book return logic (returnbook).
• Automatically compares the expected return date against the system date.
• Calculates a penalty fine rate (Rs. 10/day) for overdue items and alerts the administrator via detailed popup dialogs.

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🛠️ Tech Stack & Requirements

• Language: Python 3.x
• GUI Framework: Tkinter
• Database: SQLite3
• Image Processing: Pillow (PIL)

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🏃 How to Run the Application

1. Clone the Repository:

   git clone [https://github.com/Usman-ali31/Software-ReEngineering-Library-System.git](https://github.com/Usman-ali31/Software-ReEngineering-Library-System.git)
   cd Software-ReEngineering-Library-System