/**
 * Copyright (c) 2021 OceanBase
 * OceanBase CE is licensed under Mulan PubL v2.
 * You can use this software according to the terms and conditions of the Mulan PubL v2.
 * You may obtain a copy of Mulan PubL v2 at:
 *          http://license.coscl.org.cn/MulanPubL-2.0
 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
 * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
 * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
 * See the Mulan PubL v2 for more details.
 */

#ifndef _OB_EXPR_MOD_H_
#define _OB_EXPR_MOD_H_

#include "sql/engine/expr/ob_expr_operator.h"

namespace oceanbase {
namespace sql {
class ObExprMod : public ObArithExprOperator {
public:
  ObExprMod();
  explicit ObExprMod(common::ObIAllocator& alloc);
  virtual ~ObExprMod(){};
  virtual int calc_result_type2(
      ObExprResType& type, ObExprResType& type1, ObExprResType& type2, common::ObExprTypeCtx& type_ctx) const override;
  virtual int calc_result2(common::ObObj& res, const common::ObObj& ojb1, const common::ObObj& obj2,
      common::ObExprCtx& expr_ctx) const override;
  static int calc(common::ObObj& res, const common::ObObj& ojb1, const common::ObObj& obj2,
      common::ObIAllocator* allocator, common::ObScale scale);

  static int mod_int_int(const ObExpr& expr, ObEvalCtx& ctx, ObDatum& expr_datum);
  static int mod_int_uint(const ObExpr& expr, ObEvalCtx& ctx, ObDatum& expr_datum);
  static int mod_uint_int(const ObExpr& expr, ObEvalCtx& ctx, ObDatum& expr_datum);
  static int mod_uint_uint(const ObExpr& expr, ObEvalCtx& ctx, ObDatum& expr_datum);
  static int mod_float(const ObExpr& expr, ObEvalCtx& ctx, ObDatum& expr_datum);
  static int mod_double(const ObExpr& expr, ObEvalCtx& ctx, ObDatum& expr_datum);
  static int mod_number(const ObExpr& expr, ObEvalCtx& ctx, ObDatum& expr_datum);
  // temporary used, remove after all expr converted
  virtual int cg_expr(ObExprCGCtx& op_cg_ctx, const ObRawExpr& raw_expr, ObExpr& rt_expr) const override;

private:
  OB_INLINE static int mod_int(common::ObObj& res, const common::ObObj& left, const common::ObObj& right,
      common::ObIAllocator* allocator, common::ObScale scale);
  OB_INLINE static int mod_uint(common::ObObj& res, const common::ObObj& left, const common::ObObj& right,
      common::ObIAllocator* allocator, common::ObScale scale);
  static int mod_float(common::ObObj& res, const common::ObObj& left, const common::ObObj& right,
      common::ObIAllocator* allocator, common::ObScale scale);
  static int mod_double(common::ObObj& res, const common::ObObj& left, const common::ObObj& right,
      common::ObIAllocator* allocator, common::ObScale scale);
  static int mod_number(common::ObObj& res, const common::ObObj& left, const common::ObObj& right,
      common::ObIAllocator* allocator, common::ObScale scale);
  DISALLOW_COPY_AND_ASSIGN(ObExprMod);

private:
  static ObArithFunc mod_funcs_[common::ObMaxTC];
};
}  // namespace sql
}  // namespace oceanbase

#endif /* _OB_EXPR_MOD_H_ */
