#pragma once

#include <memory>
#include "date.h"
#include "condition_parser.h"


using namespace std;


class Node {
 public:
  Node();
  virtual bool Evaluate(const Date &date, const string &event) const = 0;
};


class EmptyNode : public Node {
 public:
  EmptyNode();

  bool Evaluate(const Date &date, const string &event) const override;
};


class DateComparisonNode : public Node {
 public:
  DateComparisonNode(const Comparison &comparison, const Date &date);

  bool Evaluate(const Date &date, const string &event) const override;

 private:
  const Comparison _comparison;
  const Date _date;
};


class EventComparisonNode : public Node {
 public:
  EventComparisonNode(const Comparison &comparison, const string &value);

  bool Evaluate(const Date &date, const string &event) const override;

 private:
  const Comparison _comparison;
  const string _value;
};


class LogicalOperationNode : public Node {
 public:
  LogicalOperationNode(const LogicalOperation &logical_operation, const shared_ptr<Node> &left,
                       const shared_ptr<Node> &right);

  bool Evaluate(const Date &date, const string &event) const override;

 private:
  const LogicalOperation _logical_operation;
  const shared_ptr<Node> _left, _right;
};