/**
 * @file mix_cc/sql/value.h
 * @brief SQL语句中的设置数值
 * @author Cat (null.null.null@qq.com)
 * @version 0.1
 * @date 2021-09-17
 * 
 * Copyright: Baosight Co. Ltd.
 * DO NOT COPY/USE WITHOUT PERMISSION
 * 
 */
#pragma once
#include <mix_cc/sql/public.h>
#include <mix_cc/sql/op/compare.h>
#include <string>

namespace mix_cc {
namespace sql {
template <typename Name, typename Tp>
struct value_t {
  using value_type = Tp;

 private:
  Name val_name_;
  value_type value_;

 public:
  constexpr value_t(Name val, value_type value)
      : val_name_(val), value_(value) {}
  ~value_t() {}

  constexpr auto get_str() {
    return std::string(val_name_.c_str()) + "=" + get_value();
  }

  constexpr auto get_col_name() { return std::string(val_name_.c_str()); }

  constexpr auto get_value() {
    std::string value_str;
    if constexpr (std::is_integral_v<value_type> ||
                  std::is_floating_point_v<value_type>) {
      value_str = boost::str(boost::format("%1%") % value_);
    } else {
      value_str = boost::str(boost::format("%2%%1%%2%") % value_ % '\'');
    }
    return value_str;
  }
};

}  // namespace sql
}  // namespace mix_cc