library/cpp/messagebus/key_value_printer.h


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#pragma once

#include <util/generic/string.h> 
#include <util/generic/typetraits.h>
#include <util/generic/vector.h>
#include <util/string/cast.h>

class TKeyValuePrinter {
private:
    TString Sep; 
    TVector<TString> Keys; 
    TVector<TString> Values; 
    TVector<bool> AlignLefts; 

public:
    TKeyValuePrinter(const TString& sep = TString(": ")); 
    ~TKeyValuePrinter();

    template <typename TKey, typename TValue>
    void AddRow(const TKey& key, const TValue& value, bool leftAlign = !std::is_integral<TValue>::value) {
        return AddRowImpl(ToString(key), ToString(value), leftAlign);
    }

    TString PrintToString() const; 

private:
    void AddRowImpl(const TString& key, const TString& value, bool leftAlign); 
};