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#pragma once
#include <util/string/printf.h>
#include <util/stream/str.h>
#include <util/generic/set.h>
#include "data.h"
namespace NAnalytics {
inline TString ToCsv(const TTable& in, TString sep = TString("\t"), bool head = true)
{
TSet<TString> cols;
bool hasName = false;
for (const TRow& row : in) {
hasName = hasName || !row.Name.empty();
for (const auto& kv : row) {
cols.insert(kv.first);
}
}
TStringStream ss;
if (head) {
bool first = true;
if (hasName) {
ss << (first? TString(): sep) << "Name";
first = false;
}
for (const TString& c : cols) {
ss << (first? TString(): sep) << c;
first = false;
}
ss << Endl;
}
for (const TRow& row : in) {
bool first = true;
if (hasName) {
ss << (first? TString(): sep) << row.Name;
first = false;
}
for (const TString& c : cols) {
ss << (first? TString(): sep);
first = false;
TString value;
ss << (row.GetAsString(c, value) ? value : TString("-"));
}
ss << Endl;
}
return ss.Str();
}
}
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