Complaint Management System

A C++ console application developed for a Data Structures course at AASTMT-Aswan (Spring 2024). Manages customer complaints using manually implemented data structures: linked list, queue, stack, and priority queue. Supports Customer, Employee, and Admin roles with file-based data persistence.

Features

Customer Role:

• Submit complaints (name, phone, email, content).
• View complaint details by ID.
• Delete complaints by ID.
• Search complaint history by email.

Employee Role:

• View and reply to unreplied complaints.
• Add problem summaries (stored in stack).
• Search summaries by content.
• View urgent complaints (priority queue).

Admin Role:

• Manage employees (add, delete, view).
• View unreplied complaints and total count.
• Prioritize urgent complaints.

Data Structures:

Linked List: Employee management.

Queue (Linked List): Complaint storage.

Stack: Problem summaries.

Priority Queue (Sorted Linked List): Urgent complaints.

Persistence: Complaints saved to complaint_data.txt.

Installation

1. Clone the repository:

git clone https://github.com/mido-io/Complaint-Management-System.git

2. Navigate to the project directory:

cd Complaint-Management-System

3. Compile the code

• Linux/macOS: g++ src/main.cpp -o complaint_system

• Windows (MinGW): g++ src/main.cpp -o complaint_system.exe

4. Run the program

• Linux/macOS: ./complaint_system

• Windows: complaint_system.exe

Usage

• Launch the program and select a role (Customer, Employee, Admin).
• Follow menu prompts to perform actions.
• Complaints are saved to complaint_data.txt when exiting Customer menu.

Project Structure

• src/main.cpp: Main source code.
• complaint_data.txt: Stores complaint data.
• .gitignore: Excludes compiled binaries.

Limitations

• Plain-text passwords (educational use only).
• Basic input validation (e.g., email format).
• Single-file implementation.

Future Improvements

• Implement password hashing.
• Modularize code into headers.
• Add GUI.

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Feel free to reach out with feedback or collaboration ideas!