// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.

#include "runtime/dpp_writer.h"

#include <string>

#include <gtest/gtest.h>

#include "common/logging.h"
#include "runtime/descriptors.h"
#include "runtime/row_batch.h"
#include "exprs/int_literal.h"
#include "exprs/float_literal.h"
#include "exprs/date_literal.h"
#include "exprs/string_literal.h"
#include "exprs/expr.h"
#include "runtime/primitive_type.h"
#include "gen_cpp/Types_types.h"

namespace doris {

struct TestDataTuple {
    int8_t tiny_val;
    int16_t small_val;
    int32_t int_val;
    int64_t big_val;
    float float_val;
    double double_val;
    std::string date_val;
    std::string datetime_val;
    std::string char_val;
    std::string varchar_val;
};

class DppWriterTest : public testing::Test {
public:
    DppWriterTest() :
            _row_batch(_row_desc, 1024) {
    }

protected:
    virtual void SetUp() {
        _row_batch.add_row();
        _row_batch.commit_last_row();
    }

    virtual void TearDown() {
    }

    void format_one(TestDataTuple& data, struct std::vector<Expr*>& output_expr);

private:
    RowDescriptor _row_desc;
    RowBatch _row_batch;
};

void DppWriterTest::format_one(TestDataTuple& data, std::vector<Expr*>& output_expr) {
        // Tinyint
        {
            ColumnType type(TYPE_TINYINT, 0);
            IntLiteral* expr = new IntLiteral(type, &data.tiny_val);
            expr->prepare(nullptr, _row_desc);
            output_expr.push_back(expr);
        }
        // Smallint
        {
            ColumnType type(TYPE_SMALLINT, 0);
            IntLiteral* expr = new IntLiteral(type, &data.small_val);
            expr->prepare(nullptr, _row_desc);
            output_expr.push_back(expr);
        }
        // Int
        {
            ColumnType type(TYPE_INT, 0);
            IntLiteral* expr = new IntLiteral(type, &data.int_val);
            expr->prepare(nullptr, _row_desc);
            output_expr.push_back(expr);
        }
        // Long
        {
            ColumnType type(TYPE_BIGINT, 0);
            IntLiteral* expr = new IntLiteral(type, &data.big_val);
            expr->prepare(nullptr, _row_desc);
            output_expr.push_back(expr);
        }
        // Float
        {
            ColumnType type(TYPE_FLOAT, 0);
            FloatLiteral* expr = new FloatLiteral(type, &data.float_val);
            expr->prepare(nullptr, _row_desc);
            output_expr.push_back(expr);
        }
        // Double
        {
            ColumnType type(TYPE_DOUBLE, 0);
            FloatLiteral* expr = new FloatLiteral(type, &data.double_val);
            expr->prepare(nullptr, _row_desc);
            output_expr.push_back(expr);
        }
        // Date
        {
            TExprNode node;
            TColumnType t_type;
            t_type.__set_type(TPrimitiveType::DATE);
            node.type = t_type;
            node.date_literal.value = data.date_val;
            DateLiteral* expr = new DateLiteral(node);
            expr->prepare(nullptr, _row_desc);
            output_expr.push_back(expr);
        }
        // Datetime
        {
            TExprNode node;
            TColumnType t_type;
            t_type.__set_type(TPrimitiveType::DATETIME);
            node.type = t_type;
            node.date_literal.value = data.datetime_val;
            DateLiteral* expr = new DateLiteral(node);
            expr->prepare(nullptr, _row_desc);
            output_expr.push_back(expr);
        }
        // char
        {
            TExprNode node;
            TColumnType t_type;
            t_type.__set_type(TPrimitiveType::CHAR);
            t_type.__set_len(20);
            node.type = t_type;
            node.string_literal.value = data.char_val;
            node.string_literal.value.append(20 - data.char_val.size(), '\0');
            StringLiteral* expr = new StringLiteral(node);
            expr->prepare(nullptr, _row_desc);
            output_expr.push_back(expr);
        }
        // Varchar
        {
            TExprNode node;
            TColumnType t_type;
            t_type.__set_type(TPrimitiveType::VARCHAR);
            node.type = t_type;
            node.string_literal.value = data.varchar_val;
            StringLiteral* expr = new StringLiteral(node);
            expr->prepare(nullptr, _row_desc);
            output_expr.push_back(expr);
        }
}

TEST_F(DppWriterTest, normalCase) {
    FileHandler fp;
    fp.open_with_mode("zc.out", O_CREAT | O_TRUNC | O_WRONLY, S_IRWXU | S_IRWXU);
    std::vector<Expr*> output_expr;
    DppWriter writer(1, output_expr, &fp);
    writer.open();

    TestDataTuple data;

    data.tiny_val = 23;
    data.small_val = 2345;
    data.int_val = 23456789;
    data.big_val = 23456789987654321;
    data.float_val = 23.45;
    data.double_val = 2345.678;
    data.date_val = "22101112";
    data.datetime_val = "22101112123456";
    data.char_val = "i am char too";
    data.varchar_val = "i am varchar too";
    format_one(data, output_expr);
    writer.add_batch(&_row_batch);
    for (auto iter : output_expr) {
        delete iter;
    }
    output_expr.clear();

    data.tiny_val = 123;
    data.small_val = 12345;
    data.int_val = 123456789;
    data.big_val = 123456789987654321;
    data.float_val = 123.45;
    data.double_val = 12345.678;
    data.date_val = "20101112";
    data.datetime_val = "20101112123456";
    data.char_val = "i am char";
    data.varchar_val = "i am varchar";
    format_one(data, output_expr);
    writer.add_batch(&_row_batch);
    for (auto iter : output_expr) {
        delete iter;
    }
    output_expr.clear();

    writer.close();
    fp.close();
}

}

int main(int argc, char** argv) {
    // std::string conffile = std::string(getenv("DORIS_HOME")) + "/conf/be.conf";
    // if (!doris::config::init(conffile.c_str(), false)) {
    //     fprintf(stderr, "error read config file. \n");
    //     return -1;
    // }
    ::testing::InitGoogleTest(&argc, argv);
    return RUN_ALL_TESTS();
}