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#include "mkql_round.h"
#include <yql/essentials/minikql/computation/mkql_computation_node_holders.h>
#include <yql/essentials/minikql/computation/presort.h>
#include <yql/essentials/minikql/mkql_node_cast.h>
#include <yql/essentials/minikql/mkql_node_builder.h>
#include <yql/essentials/minikql/mkql_type_builder.h>
#include <yql/essentials/minikql/mkql_string_util.h>
#include <yql/essentials/public/udf/udf_data_type.h>
#include <yql/essentials/utils/utf8.h>
#include <algorithm>
namespace NKikimr {
namespace NMiniKQL {
using namespace NYql::NUdf;
namespace {
template<typename From, typename To>
class TRoundIntegralWrapper : public TMutableComputationNode<TRoundIntegralWrapper<From, To>> {
using TSelf = TRoundIntegralWrapper<From, To>;
using TBase = TMutableComputationNode<TSelf>;
typedef TBase TBaseComputation;
public:
TRoundIntegralWrapper(TComputationMutables& mutables, IComputationNode* source, bool down)
: TBaseComputation(mutables)
, Source(source)
, Down(down)
{
}
NUdf::TUnboxedValuePod DoCalculate(TComputationContext& ctx) const {
const auto value = Source->GetValue(ctx).Get<From>();
constexpr auto toMin = std::numeric_limits<To>::min();
constexpr auto toMax = std::numeric_limits<To>::max();
if constexpr (std::is_signed<From>::value && std::is_unsigned<To>::value) {
if (value < 0) {
return Down ? TUnboxedValuePod() : TUnboxedValuePod(toMin);
}
if (static_cast<std::make_unsigned_t<From>>(value) > toMax) {
return Down ? TUnboxedValuePod(toMax) : TUnboxedValuePod();
}
return TUnboxedValuePod(static_cast<To>(value));
}
if constexpr (std::is_unsigned<From>::value && std::is_signed<To>::value) {
if (value > static_cast<std::make_unsigned_t<To>>(toMax)) {
return Down ? TUnboxedValuePod(toMax) : TUnboxedValuePod();
}
return TUnboxedValuePod(static_cast<To>(value));
}
if (value < toMin) {
return Down ? TUnboxedValuePod() : TUnboxedValuePod(toMin);
}
if (value > toMax) {
return Down ? TUnboxedValuePod(toMax) : TUnboxedValuePod();
}
return TUnboxedValuePod(static_cast<To>(value));
}
private:
void RegisterDependencies() const final {
this->DependsOn(Source);
}
IComputationNode* const Source;
const bool Down;
};
class TRoundDateTypeWrapper : public TMutableComputationNode<TRoundDateTypeWrapper> {
using TSelf = TRoundDateTypeWrapper;
using TBase = TMutableComputationNode<TSelf>;
typedef TBase TBaseComputation;
public:
TRoundDateTypeWrapper(TComputationMutables& mutables, IComputationNode* source, bool down, EDataSlot from, EDataSlot to)
: TBaseComputation(mutables)
, Source(source)
, Down(down)
, From(from)
, To(to)
{
}
NUdf::TUnboxedValuePod DoCalculate(TComputationContext& ctx) const {
constexpr i64 usInDay = 86400'000'000ll;
constexpr i64 usInSec = 1000'000ll;
i64 us;
if (From == EDataSlot::Timestamp64) {
us = Source->GetValue(ctx).Get<i64>();
} else if (From == EDataSlot::Datetime64) {
us = usInSec * Source->GetValue(ctx).Get<i64>();
} else if (From == EDataSlot::Timestamp) {
us = static_cast<i64>(Source->GetValue(ctx).Get<ui64>());
} else if (From == EDataSlot::Datetime) {
us = usInSec * static_cast<i64>(Source->GetValue(ctx).Get<ui32>());
} else {
Y_ENSURE(From == EDataSlot::Date32);
us = usInDay * static_cast<i64>(Source->GetValue(ctx).Get<i32>());
}
if (To == EDataSlot::Date || To == EDataSlot::Date32) {
i64 rounded = us / usInDay;
i64 rem = us % usInDay;
if (rem > 0 && !Down) {
rounded += 1;
} else if (rem < 0 && Down) {
rounded -= 1;
}
if (To == EDataSlot::Date32 && rounded <= MAX_DATE32) {
// lower bound check is not needed as RoundDown(MinTimestamp64) is valid value
return TUnboxedValuePod(static_cast<i32>(rounded));
} else if (To == EDataSlot::Date && rounded >= 0 && rounded < MAX_DATE) {
return TUnboxedValuePod(static_cast<ui16>(rounded));
}
} else if (To == EDataSlot::Datetime || To == EDataSlot::Datetime64) {
i64 rounded = us / usInSec;
i64 rem = us % usInSec;
if (rem > 0 && !Down) {
rounded += 1;
} else if (rem < 0 && Down) {
rounded -= 1;
}
if (To == EDataSlot::Datetime64 && rounded <= MAX_DATETIME64) {
// lower bound check is not needed as RoundDown(MinTimestamp64) is valid value
return TUnboxedValuePod(rounded);
} else if (To == EDataSlot::Datetime && rounded >= 0 && rounded < MAX_DATETIME) {
return TUnboxedValuePod(static_cast<ui32>(rounded));
}
} else {
Y_ENSURE(To == EDataSlot::Timestamp);
if (0 <= us && us < static_cast<i64>(MAX_TIMESTAMP)) {
return TUnboxedValuePod(static_cast<ui64>(us));
}
}
return {};
}
private:
void RegisterDependencies() const final {
this->DependsOn(Source);
}
IComputationNode* const Source;
const bool Down;
const EDataSlot From;
const EDataSlot To;
};
class TRoundStringWrapper : public TMutableComputationNode<TRoundStringWrapper> {
using TSelf = TRoundStringWrapper;
using TBase = TMutableComputationNode<TSelf>;
typedef TBase TBaseComputation;
public:
TRoundStringWrapper(TComputationMutables& mutables, IComputationNode* source, bool down)
: TBaseComputation(mutables)
, Source(source)
, Down(down)
{
}
NUdf::TUnboxedValuePod DoCalculate(TComputationContext& ctx) const {
TUnboxedValue input = Source->GetValue(ctx);
auto output = NYql::RoundToNearestValidUtf8(input.AsStringRef(), Down);
if (!output) {
return {};
}
return MakeString(*output);
}
private:
void RegisterDependencies() const final {
this->DependsOn(Source);
}
IComputationNode* const Source;
const bool Down;
};
template<typename From>
IComputationNode* FromIntegral(TComputationMutables& mutables, IComputationNode* source, bool down, EDataSlot target) {
switch (target) {
case EDataSlot::Int8: return new TRoundIntegralWrapper<From, i8>(mutables, source, down);
case EDataSlot::Uint8: return new TRoundIntegralWrapper<From, ui8>(mutables, source, down);
case EDataSlot::Int16: return new TRoundIntegralWrapper<From, i16>(mutables, source, down);
case EDataSlot::Uint16: return new TRoundIntegralWrapper<From, ui16>(mutables, source, down);
case EDataSlot::Int32: return new TRoundIntegralWrapper<From, i32>(mutables, source, down);
case EDataSlot::Uint32: return new TRoundIntegralWrapper<From, ui32>(mutables, source, down);
case EDataSlot::Int64: return new TRoundIntegralWrapper<From, i64>(mutables, source, down);
case EDataSlot::Uint64: return new TRoundIntegralWrapper<From, ui64>(mutables, source, down);
default: Y_ENSURE(false, "Unsupported integral rounding");
}
return nullptr;
}
} // namespace
IComputationNode* WrapRound(TCallable& callable, const TComputationNodeFactoryContext& ctx) {
MKQL_ENSURE(callable.GetInputsCount() == 1, "Expecting exactly one argument");
auto type = callable.GetInput(0).GetStaticType();
MKQL_ENSURE(type->IsData(), "Expecting data as argument");
auto returnType = callable.GetType()->GetReturnType();
MKQL_ENSURE(returnType->IsOptional(), "Expecting optional as return type");
auto targetType = static_cast<TOptionalType*>(returnType)->GetItemType();
MKQL_ENSURE(targetType->IsData(), "Expecting Data as target type");
auto from = GetDataSlot(static_cast<TDataType*>(type)->GetSchemeType());
auto to = GetDataSlot(static_cast<TDataType*>(targetType)->GetSchemeType());
bool down = callable.GetType()->GetName() == "RoundDown";
auto source = LocateNode(ctx.NodeLocator, callable, 0);
switch (from) {
case EDataSlot::Int8: return FromIntegral<i8>(ctx.Mutables, source, down, to);
case EDataSlot::Uint8: return FromIntegral<ui8>(ctx.Mutables, source, down, to);
case EDataSlot::Int16: return FromIntegral<i16>(ctx.Mutables, source, down, to);
case EDataSlot::Uint16: return FromIntegral<ui16>(ctx.Mutables, source, down, to);
case EDataSlot::Int32: return FromIntegral<i32>(ctx.Mutables, source, down, to);
case EDataSlot::Uint32: return FromIntegral<ui32>(ctx.Mutables, source, down, to);
case EDataSlot::Int64: return FromIntegral<i64>(ctx.Mutables, source, down, to);
case EDataSlot::Uint64: return FromIntegral<ui64>(ctx.Mutables, source, down, to);
case EDataSlot::Datetime:
case EDataSlot::Timestamp:
case EDataSlot::Date32: // From Date cases are covered in NYql::NTypeAnnImpl::RoundWrapper
case EDataSlot::Datetime64:
case EDataSlot::Timestamp64:
Y_ENSURE(GetDataTypeInfo(to).Features & DateType);
return new TRoundDateTypeWrapper(ctx.Mutables, source, down, from, to);
case EDataSlot::String:
Y_ENSURE(to == EDataSlot::Utf8);
return new TRoundStringWrapper(ctx.Mutables, source, down);
default:
Y_ENSURE(false,
"Unsupported rounding from " << GetDataTypeInfo(from).Name << " to " << GetDataTypeInfo(to).Name);
}
return nullptr;
}
}
}
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