#include <eqpalg/utility/sample_utilites.h>
namespace utility {

/**
 * @brief 判断样本是否应该报警
 * @param  sample           总采样信息
 * @param  real_value       输入的实际值
 * @param  diff             运行的差值
 * @return true             样本应报警
 * @return false            样本不应报警
 */
bool is_alarm_value(SampleTrendAnalysis *sample, double real_value,
                    double diff) {
  bool ret_flag = false;
  if (sample->HaveSample()) {
    switch (sample->JudgeMode()) {
    case JUDGE_MODE::DIFFERENCE:
      if (fabs(fabs(real_value) -
               fabs(sample->GetProperty()->data.abs_diff.avg)) > diff) {
        ret_flag = true;
      }
      break;
    case JUDGE_MODE::PRCENTAGE:
      if (fabs(fabs(real_value) -
               fabs(sample->GetProperty()->data.abs_diff.avg)) /
              fabs(sample->GetProperty()->data.abs_diff.avg) >
          diff) {
        ret_flag = true;
      }
      break;
    case JUDGE_MODE::NORMAL:
      if (real_value > sample->GetProperty()->data.normal_cfdi.up ||
          real_value < sample->GetProperty()->data.normal_cfdi.low) {
        ret_flag = true;
      }
    default:
      break;
    }
  }
  return ret_flag;
}

/**
 * @brief 判断样本是否应该报警 *无报警下限，适用于样本判断偏差是否合法的算法
 * @param  sample           总采样信息
 * @param  real_value       输入的实际值
 * @param  diff             运行的差值
 * @return true             样本应报警
 * @return false            样本不应报警
 */
bool is_alarm_value_no_down_lim(SampleTrendAnalysis *sample, double real_value,
                                double diff) {
  bool ret_flag = false;
  if (sample->HaveSample()) {
    switch (sample->JudgeMode()) {
    case JUDGE_MODE::DIFFERENCE:
      if (fabs(fabs(real_value) -
               fabs(sample->GetProperty()->data.abs_diff.avg)) > diff &&
          fabs(real_value) - fabs(sample->GetProperty()->data.abs_diff.avg) >
              0) {
        ret_flag = true;
      }
      break;
    case JUDGE_MODE::PRCENTAGE:
      if (fabs(fabs(real_value) -
               fabs(sample->GetProperty()->data.abs_diff.avg)) /
                  fabs(sample->GetProperty()->data.abs_diff.avg) >
              diff &&
          (fabs(real_value) - fabs(sample->GetProperty()->data.abs_diff.avg)) >
              0) {
        ret_flag = true;
      }
      break;
    case JUDGE_MODE::NORMAL:
      if (real_value > sample->GetProperty()->data.normal_cfdi.up) {
        ret_flag = true;
      }
    default:
      break;
    }
  }
  return ret_flag;
}

/**
 * @brief 产生样本描述
 * @param  sample           总样本信息
 * @param  real_value       输入的实际值
 * @param  diff             合法区间
 * @return string           产生的样本描述
 */
string generate_sample_describe(SampleTrendAnalysis *sample, double real_value,
                                double diff) {
  string value = " 实际值:" + to_string(real_value);
  if (sample->JudgeMode() == JUDGE_MODE::DIFFERENCE) {
    value += " 区间[" +
             to_string(sample->GetProperty()->data.abs_diff.avg - diff) + "," +
             to_string(sample->GetProperty()->data.abs_diff.avg + diff) + "]";
  } else if (sample->JudgeMode() == JUDGE_MODE::PRCENTAGE) {
    value += " 基准值:" + to_string(sample->GetProperty()->data.abs_diff.avg) +
             "," + to_string(diff * 100) + "%";
  } else if (sample->JudgeMode() == JUDGE_MODE::NORMAL) {
    value += " 区间[" + to_string(sample->GetProperty()->data.normal_cfdi.low) +
             "," + to_string(sample->GetProperty()->data.normal_cfdi.up) + "]";
  }
  return value;
}
}