package com.iailab.module.model.mdk.sample;

import com.iailab.module.data.api.point.DataPointApi;
import com.iailab.module.data.api.point.dto.ApiPointDTO;
import com.iailab.module.data.api.point.dto.ApiPointValueDTO;
import com.iailab.module.data.api.point.dto.ApiPointValueQueryDTO;
import com.iailab.module.model.mcs.pre.entity.MmItemOutputEntity;
import com.iailab.module.model.mcs.pre.service.MmItemOutputService;
import com.iailab.module.model.mcs.pre.service.MmItemResultService;
import com.iailab.module.model.mcs.pre.service.MmItemTypeService;
import com.iailab.module.model.mdk.common.enums.ModelParamType;
import com.iailab.module.model.mdk.sample.dto.ColumnItem;
import com.iailab.module.model.mdk.sample.dto.ColumnItemPort;
import com.iailab.module.model.mdk.sample.dto.SampleData;
import com.iailab.module.model.mdk.sample.dto.SampleInfo;
import com.iailab.module.model.mdk.vo.DataValueVO;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import java.math.BigDecimal;
import java.util.*;
import java.util.stream.Collectors;

/**
 * 预测样本数据构造
 */
@Component
public class PredictSampleDataConstructor extends SampleDataConstructor {

    private Logger logger = LoggerFactory.getLogger(getClass());

    @Autowired
    private DataPointApi dataPointApi;

    @Autowired
    private MmItemResultService mmItemResultService;

    @Autowired
    private MmItemTypeService mmItemTypeService;

    @Autowired
    private MmItemOutputService mmItemOutputService;

    /**
     * alter by zfc 2020.11.24 修改数据样本构造方案：sampleInfo中数据已按爪子进行分类，但爪内数据为无序的，
     * 对爪内数据样本拼接：先基于modelParamOrder对项进行排序（重写comparator匿名函数），再逐项拼接
     *
     * @param sampleInfo
     * @return
     */
    @Override
    public List<SampleData> prepareSampleData(SampleInfo sampleInfo) {
        List<SampleData> sampleDataList = new ArrayList<>();
        //对每个爪分别进行计算
        for (ColumnItemPort entry : sampleInfo.getColumnInfo()) {
            //先依据爪内数据项的modelParamOrder进行排序——重写comparator匿名函数
            Collections.sort(entry.getColumnItemList(), new Comparator<ColumnItem>() {
                @Override
                public int compare(ColumnItem o1, ColumnItem o2) {
                    return o1.getModelParamOrder() - o2.getModelParamOrder();
                }
            });

            //默认都是double类型的数据,且按列向量进行拼接,默认初始值为0.0
            double[][] matrix = new double[entry.getDataLength()][entry.getColumnItemList().size()];
            for (int i = 0; i < entry.getColumnItemList().size(); i++) {
                for (int j = 0; j < entry.getDataLength(); j++) {
                    matrix[j][i] = -2.0;
                }
            }

            //对每一项依次进行数据查询,然后将查询出的值赋给matrix对应的位置
            for (int i = 0; i < entry.getColumnItemList().size(); i++) {
                try {
                    List<DataValueVO> dataEntityList = getData(entry.getColumnItemList().get(i));
                    //补全数据
                    ColumnItem columnItem = entry.getColumnItemList().get(i);
                    dataEntityList = super.completionData(matrix.length, dataEntityList, columnItem.startTime, columnItem.endTime,
                            columnItem.paramId, columnItem.getParamType());

                    /** 如果数据取不满，把缺失的数据点放在后面 */
                    if (dataEntityList != null && dataEntityList.size() != 0) {
                        logger.info("设置matrix, i = " + i + ", size = " + dataEntityList.size());
                        for (int k = 0; k < dataEntityList.size(); k++) {
                            matrix[k][i] = dataEntityList.get(k).getDataValue();
                        }
                    }
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
            SampleData sampleData = new SampleData();
            sampleData.setMatrix(matrix);
            sampleDataList.add(sampleData);
        }
        return sampleDataList;
    }

    /**
     * getData
     *
     * @param columnItem
     * @return
     * @throws Exception
     */
    private List<DataValueVO> getData(ColumnItem columnItem) throws Exception {
        List<DataValueVO> dataList = new ArrayList<>();
        String paramType = columnItem.getParamType();
        switch (ModelParamType.getEumByCode(paramType)) {
            case DATAPOINT:
                ApiPointDTO point = dataPointApi.getInfoById(columnItem.getParamId());
                ApiPointValueQueryDTO queryDto = new ApiPointValueQueryDTO();
                queryDto.setPointNo(point.getPointNo());
                queryDto.setStart(columnItem.getStartTime());
                queryDto.setEnd(columnItem.getEndTime());
                List<ApiPointValueDTO> pointValueList = dataPointApi.queryPointHistoryValue(queryDto);
                dataList = pointValueList.stream().map(t -> {
                    DataValueVO vo = new DataValueVO();
                    vo.setDataTime(t.getT());
                    vo.setDataValue(t.getV());
                    return vo;
                }).collect(Collectors.toList());
                break;
            case PREDICTITEM:
                MmItemOutputEntity outPut = mmItemOutputService.getOutPutById(columnItem.getId());
                dataList = mmItemResultService.getPredictValue(outPut.getId(),
                        columnItem.getStartTime(), columnItem.getEndTime());
                if (dataList == null) {
                    throw new Exception("没有预测值");
                }
                break;
            default:
                break;
        }
        return dataList;
    }
}