Shape Template

A modern C++ template-based project for calculating properties of geometric shapes.
Supports both command-line and interactive modes. Includes Docker support and GitHub Actions CI.

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📦 Features

• Object-oriented design with polymorphism
• Template-based Shape base class
• Runtime shape creation and display
• Scalable and extensible design
• CI workflow with GitHub Actions
• Dockerized build and run
• Demonstrates advanced C++ features and design patterns

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🎓 Design Intent

This project intentionally overengineers certain components to demonstrate C++ fluency, especially:

• Use of smart pointers (shared_ptr) to show memory-safe dynamic allocation
• Application of design patterns:
  • Factory and Command: via process_input() dispatcher
  • Template Method: shape interface with polymorphic overrides
  • Mixin (modShape): central shape counter and scale validation
• Usage of C++ templates to enable flexibility in numeric types
• CI/CD and Docker support for real-world development

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🚀 Supported Shapes

Shape	Parameters
Circle	radius [scale optional]
Rectangle	length, width
Square	side
Triangle	side1, side2, side3 (validated)
Sphere	radius
Cube	side [scale optional]

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🔨 Build Instructions

🛠️ Using Makefile

make run

🛠️ Manual build

g++ src/main.cpp -o shapes -Wall -Wextra -std=c++17

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🚀 Run Instructions

▶️ Command-line mode

./shapes circle 5
./shapes circle 5 scale 2
./shapes rectangle 4 6
./shapes square 7
./shapes triangle 3 4 5
./shapes sphere 5
./shapes cube 6
./shapes cube 6 scale 1.5

▶️ Interactive mode

./shapes
# Example input:
circle 5
rectangle 4 6
triangle 3 4 5
sphere 5
cube 6
exit

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🐳 Run inside Docker

docker build -t shapes .
docker run --rm shapes circle 10

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🧪 Integration test

./run_shapes.sh

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⚙️ Continuous Integration (CI)

• GitHub Actions: .github/workflows/ci_workflow.yml
• Runs:
  • make all
  • Docker build
  • Docker run validation
• Logs output to ./build/docker.log on failure

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