#include <iostream>
#include <memory>

#include "expression.hpp"

int main() {
    // v1, v2, v3 are ValueExpression objects
    auto v1 = make_value(42);
    auto v2 = make_value(23);
    auto v3 = make_value(3.14);

    std::cout << "v1 = " << *v1->evaluate() << std::endl;
    std::cout << "expression v1: " << *v1 << std::endl;

    std::cout << "v2 = " << *v2->evaluate() << std::endl;
    std::cout << "expression v2: " << *v2 << std::endl;

    std::cout << "v3 = " << *v3->evaluate() << std::endl;
    std::cout << "expression v3: " << *v3 << std::endl;

    auto e1 = make_addition(std::move(v1), std::move(v2));

    std::cout << "42 + 23 = " << *e1->evaluate() << std::endl;

    std::cout << "Expression e1: " << *e1 << std::endl;

    auto e2 = make_multiplication(std::move(e1), std::move(v3));

    std::cout << "(42 + 23) * 3.14 = " << *e2->evaluate() << std::endl;

    // Print the expression in the prefix notation: * + 42 23 3.14
    std::cout << "Expression e2: " << *e2 << std::endl;

    return 0;
}