list_wasm.cpp

#include <emscripten/bind.h>
#include <sstream>
#include "LinkedList.hpp"

using namespace emscripten;

// Wrapper class to expose OrderedLinkedList<int> with JS-friendly methods
class LinkedListWrapper {
private:
    OrderedLinkedList<int> list;

public:
    LinkedListWrapper() : list() {}

    void insert(int item) {
        list.insert(item);
    }

    void remove(int item) {
        list.remove(item);
    }

    int find(int item) {
        return list.find(item);
    }

    int get(int pos) {
        try {
            return list.get(pos);
        } catch (...) {
            return -1; // Return -1 for invalid positions
        }
    }

    int size() {
        return list.size();
    }

    bool empty() {
        return list.empty();
    }

    void clear() {
        list.clear();
    }

    std::string toString() {
        std::ostringstream oss;
        oss << list;
        return oss.str();
    }

    // Returns all elements as a space-separated string for JS parsing
    std::string getAll() {
        std::ostringstream oss;
        for (int i = 0; i < list.size(); i++) {
            if (i > 0) oss << " ";
            oss << list.get(i);
        }
        return oss.str();
    }
};

EMSCRIPTEN_BINDINGS(list_module) {
    class_<LinkedListWrapper>("LinkedList")
        .constructor<>()
        .function("insert", &LinkedListWrapper::insert)
        .function("remove", &LinkedListWrapper::remove)
        .function("find", &LinkedListWrapper::find)
        .function("get", &LinkedListWrapper::get)
        .function("size", &LinkedListWrapper::size)
        .function("empty", &LinkedListWrapper::empty)
        .function("clear", &LinkedListWrapper::clear)
        .function("toString", &LinkedListWrapper::toString)
        .function("getAll", &LinkedListWrapper::getAll);
}