/*
 * query.cpp
 *
 *  Created on: Nov 11, 2019
 *      Author: ruben
 */

#include "boost/mysql/connection.hpp"
#include <gmock/gmock.h> // for EXPECT_THAT()
#include <boost/asio/use_future.hpp>
#include "metadata_validator.hpp"
#include "integration_test_common.hpp"
#include "test_common.hpp"

namespace net = boost::asio;
using namespace testing;
using namespace boost::mysql::test;
using boost::mysql::detail::make_error_code;
using boost::mysql::field_metadata;
using boost::mysql::field_type;
using boost::mysql::errc;

namespace
{

template <typename Stream>
struct QueryTest : public NetworkTest<Stream>
{
	auto do_query(std::string_view sql)
	{
		return this->GetParam().net->query(this->conn, sql);
	}

	void InsertQueryOk()
	{
		const char* sql = "INSERT INTO inserts_table (field_varchar, field_date) VALUES ('v0', '2010-10-11')";
		auto result = do_query(sql);
		result.validate_no_error();
		EXPECT_TRUE(result.value.fields().empty());
		EXPECT_TRUE(result.value.valid());
		EXPECT_TRUE(result.value.complete());
		EXPECT_EQ(result.value.affected_rows(), 1);
		EXPECT_EQ(result.value.warning_count(), 0);
		EXPECT_GT(result.value.last_insert_id(), 0);
		EXPECT_EQ(result.value.info(), "");
	}

	void InsertQueryFailed()
	{
		const char* sql = "INSERT INTO bad_table (field_varchar, field_date) VALUES ('v0', '2010-10-11')";
		auto result = do_query(sql);
		result.validate_error(errc::no_such_table, {"table", "doesn't exist", "bad_table"});
		EXPECT_FALSE(result.value.valid());
	}

	void UpdateQueryOk()
	{
		const char* sql = "UPDATE updates_table SET field_int = field_int+1";
		auto result = do_query(sql);
		result.validate_no_error();
		EXPECT_TRUE(result.value.fields().empty());
		EXPECT_TRUE(result.value.valid());
		EXPECT_TRUE(result.value.complete());
		EXPECT_EQ(result.value.affected_rows(), 2);
		EXPECT_EQ(result.value.warning_count(), 0);
		EXPECT_EQ(result.value.last_insert_id(), 0);
		EXPECT_THAT(std::string(result.value.info()), HasSubstr("Rows matched"));
	}

	void SelectOk()
	{
		auto result = do_query("SELECT * FROM empty_table");
		result.validate_no_error();
		EXPECT_TRUE(result.value.valid());
		EXPECT_FALSE(result.value.complete());
		this->validate_2fields_meta(result.value, "empty_table");
	}

	void SelectQueryFailed()
	{
		auto result = do_query("SELECT field_varchar, field_bad FROM one_row_table");
		result.validate_error(errc::bad_field_error, {"unknown column", "field_bad"});
		EXPECT_FALSE(result.value.valid());
	}

	// Some system-level query tests (TODO: this does not feel right here)
	void QueryAndFetch_AliasedTableAndField_MetadataCorrect()
	{
		auto result = do_query("SELECT field_varchar AS field_alias FROM empty_table table_alias");
		meta_validator validator ("table_alias", "empty_table", "field_alias",
				"field_varchar", field_type::varchar);
		result.validate_no_error();
		validate_meta(result.value.fields(), {validator});
	}
};

BOOST_MYSQL_NETWORK_TEST_SUITE(QueryTest)

BOOST_MYSQL_NETWORK_TEST(QueryTest, InsertQueryOk)
BOOST_MYSQL_NETWORK_TEST(QueryTest, InsertQueryFailed)
BOOST_MYSQL_NETWORK_TEST(QueryTest, UpdateQueryOk)
BOOST_MYSQL_NETWORK_TEST(QueryTest, SelectOk)
BOOST_MYSQL_NETWORK_TEST(QueryTest, SelectQueryFailed)
BOOST_MYSQL_NETWORK_TEST(QueryTest, QueryAndFetch_AliasedTableAndField_MetadataCorrect)


} // anon namespace