Fast Food Simulator

Fast Food Simulator is an advanced application that models the complete operation of a take-away restaurant, designed to demonstrate Promise-based programming and SOLID design principles. This simulator manages the complex interactions between customers, order takers, cooks, and servers in a realistic restaurant workflow.

This advanced project demonstrates:

• Promise-Based Architecture: Using native Promises for asynchronous operations
• SOLID Design Principles: Clean, maintainable code architecture
• Concurrent Process Management: Multiple simultaneous restaurant operations
• Real-time Simulation: Live workflow visualization and monitoring
• Complex State Management: Coordinating multiple actors and processes

Key System Components:

Actor Roles and Responsibilities

• Customer: Places orders and waits for completion
• Order Taker: Processes customer orders and creates order tickets
• Cook: Prepares orders based on order tickets
• Server: Delivers completed orders to pickup counter

Simulation Control System

• Configuration Interface:
  • Customer arrival interval settings
  • Order fulfillment time controls
  • Simulation start/stop controls
  • Input validation and error handling

Real-time Process Visualization

• Order Line Area: Display customers waiting to place orders
• Order Processing: Show current order being taken
• Kitchen Operations:
  • Current order being prepared
  • Queue of waiting orders with count
• Pickup Counter:
  • Orders ready for customer pickup
  • Customers waiting in serving line

Promise-Based Workflow

• Dual Promise System:
  • Server-side promises for order preparation
  • Customer-side promises for order pickup
  • Coordinated promise resolution for complete workflow

Advanced Features (Bonus)

• Customizable Timing:
  • Order taking duration configuration
  • Serving time customization
  • Total simulation runtime limits
• Visual Animation: Animated representation of workflow processes
• Performance Metrics: Real-time statistics and efficiency tracking

Technical Requirements:

Promise Implementation

• Native Promises Only: Must use language-native Promise features
• No async/await: Focus on Promise chains and resolution patterns
• Dual Promise Architecture: Separate promises for different waiting states

Timing Constraints

• Fixed Intervals: Constant customer arrival rates
• Consistent Processing: Fixed order fulfillment timing
• Configurable Parameters: User-adjustable timing intervals

Architecture Principles

• SOLID Design: Follow all five SOLID principles
• Native Implementation: No external simulation libraries
• Clean Code: Maintainable and extensible architecture

Technical Challenges:

• Designing clean Promise chains for complex workflows
• Implementing SOLID principles in asynchronous systems
• Managing multiple concurrent processes with proper coordination
• Creating realistic simulation timing and queue management
• Building intuitive interfaces for complex system monitoring

Learning Outcomes:

• Advanced Promise programming patterns
• SOLID design principle implementation
• Concurrent system design and management
• Real-time simulation development
• Complex state coordination across multiple actors

Development Approach: This project emphasizes incremental development following Agile principles. Start by sketching the UI and actor interactions, then build the system incrementally with continuous testing and refinement.

Workflow Logic: The simulation models the complete restaurant workflow from customer entry through order completion, with each step represented by appropriate Promise chains and state management systems.

This project is ideal for developers wanting to master asynchronous programming patterns while building a complex, realistic simulation system.