Design an Elevator System - Request Feasibility (Single Lift)

What You'll Build

• The system must determine if a new request can be fulfilled given the current elevator state (position, direction, current load, pending requests).
• The system should check capacity constraints - verify if the elevator has sufficient capacity (weight and passenger count) for additional passengers.
• The system must perform route planning - calculate if the elevator can reach the requested floor without violating constraints or conflicting with existing commitments.
• The system should estimate the time required to fulfill a request based on current position, direction, pending requests, and travel time.
• The system must detect conflicts between new requests and existing commitments (e.g., request requires opposite direction while elevator is committed to current direction).
• ...and more