document.h

#pragma once

#include <iostream>

struct Document {
    Document() = default;
    explicit Document(int document_id, double document_relevance, int document_rating):
        id(document_id), relevance(document_relevance), rating(document_rating){}

    int id = 0;
    double relevance = 0.0;
    int rating = 0;

    friend bool operator == (const Document &lhs, const Document &rhs);
    friend bool operator != (const Document &lhs, const Document &rhs);
    friend bool operator < (const Document &lhs, const Document &rhs);
    friend std::ostream& operator << (std::ostream& os, const Document &rhs);
};

enum class DocumentStatus {
    ACTUAL,
    IRRELEVANT,
    BANNED,
    REMOVED
};