#include "QueryViewsLog.h"

#include <Columns/IColumn.h>
#include <Core/Block.h>
#include <DataTypes/DataTypeArray.h>
#include <DataTypes/DataTypeDate.h>
#include <DataTypes/DataTypeDateTime.h>
#include <DataTypes/DataTypeDateTime64.h>
#include <DataTypes/DataTypeEnum.h>
#include <DataTypes/DataTypeMap.h>
#include <DataTypes/DataTypeString.h>
#include <DataTypes/DataTypeUUID.h>
#include <DataTypes/DataTypesNumber.h>
#include <Interpreters/ProfileEventsExt.h>
#include <Common/DateLUT.h>
#include <base/types.h>

namespace DB
{
NamesAndTypesList QueryViewsLogElement::getNamesAndTypes()
{
    auto view_status_datatype = std::make_shared<DataTypeEnum8>(DataTypeEnum8::Values{
        {"QueryStart", static_cast<Int8>(QUERY_START)},
        {"QueryFinish", static_cast<Int8>(QUERY_FINISH)},
        {"ExceptionBeforeStart", static_cast<Int8>(EXCEPTION_BEFORE_START)},
        {"ExceptionWhileProcessing", static_cast<Int8>(EXCEPTION_WHILE_PROCESSING)}});

    auto view_type_datatype = std::make_shared<DataTypeEnum8>(DataTypeEnum8::Values{
        {"Default", static_cast<Int8>(ViewType::DEFAULT)},
        {"Materialized", static_cast<Int8>(ViewType::MATERIALIZED)},
        {"Live", static_cast<Int8>(ViewType::LIVE)},
        {"Window", static_cast<Int8>(ViewType::WINDOW)}});

    return {
        {"event_date", std::make_shared<DataTypeDate>()},
        {"event_time", std::make_shared<DataTypeDateTime>()},
        {"event_time_microseconds", std::make_shared<DataTypeDateTime64>(6)},
        {"view_duration_ms", std::make_shared<DataTypeUInt64>()},

        {"initial_query_id", std::make_shared<DataTypeString>()},
        {"view_name", std::make_shared<DataTypeString>()},
        {"view_uuid", std::make_shared<DataTypeUUID>()},
        {"view_type", std::move(view_type_datatype)},
        {"view_query", std::make_shared<DataTypeString>()},
        {"view_target", std::make_shared<DataTypeString>()},

        {"read_rows", std::make_shared<DataTypeUInt64>()},
        {"read_bytes", std::make_shared<DataTypeUInt64>()},
        {"written_rows", std::make_shared<DataTypeUInt64>()},
        {"written_bytes", std::make_shared<DataTypeUInt64>()},
        {"peak_memory_usage", std::make_shared<DataTypeInt64>()},
        {"ProfileEvents", std::make_shared<DataTypeMap>(std::make_shared<DataTypeString>(), std::make_shared<DataTypeUInt64>())},

        {"status", std::move(view_status_datatype)},
        {"exception_code", std::make_shared<DataTypeInt32>()},
        {"exception", std::make_shared<DataTypeString>()},
        {"stack_trace", std::make_shared<DataTypeString>()}};
}

NamesAndAliases QueryViewsLogElement::getNamesAndAliases()
{
    return {
        {"ProfileEvents.Names", {std::make_shared<DataTypeArray>(std::make_shared<DataTypeString>())}, "mapKeys(ProfileEvents)"},
        {"ProfileEvents.Values", {std::make_shared<DataTypeArray>(std::make_shared<DataTypeUInt64>())}, "mapValues(ProfileEvents)"}};
}

void QueryViewsLogElement::appendToBlock(MutableColumns & columns) const
{
    size_t i = 0;

    columns[i++]->insert(DateLUT::instance().toDayNum(event_time).toUnderType()); // event_date
    columns[i++]->insert(event_time);
    columns[i++]->insert(event_time_microseconds);
    columns[i++]->insert(view_duration_ms);

    columns[i++]->insertData(initial_query_id.data(), initial_query_id.size());
    columns[i++]->insertData(view_name.data(), view_name.size());
    columns[i++]->insert(view_uuid);
    columns[i++]->insert(view_type);
    columns[i++]->insertData(view_query.data(), view_query.size());
    columns[i++]->insertData(view_target.data(), view_target.size());

    columns[i++]->insert(read_rows);
    columns[i++]->insert(read_bytes);
    columns[i++]->insert(written_rows);
    columns[i++]->insert(written_bytes);
    columns[i++]->insert(peak_memory_usage);

    if (profile_counters)
    {
        auto * column = columns[i++].get();
        ProfileEvents::dumpToMapColumn(*profile_counters, column, true);
    }
    else
    {
        columns[i++]->insertDefault();
    }

    columns[i++]->insert(status);
    columns[i++]->insert(exception_code);
    columns[i++]->insertData(exception.data(), exception.size());
    columns[i++]->insertData(stack_trace.data(), stack_trace.size());
}

}