package com.iailab.module.model.mdk.predict.impl;

import com.iailab.framework.common.util.collection.CollectionUtils;
import com.iailab.module.model.mcs.pre.entity.MmPredictModelEntity;
import com.iailab.module.model.mcs.pre.service.MmPredictModelService;
import com.iailab.module.model.mdk.common.enums.ItemPredictStatus;
import com.iailab.module.model.mdk.common.exceptions.ItemInvokeException;
import com.iailab.module.model.mdk.common.exceptions.ModelInvokeException;
import com.iailab.module.model.mdk.predict.PredictItemHandler;
import com.iailab.module.model.mdk.predict.PredictModelHandler;
import com.iailab.module.model.mdk.vo.ItemVO;
import com.iailab.module.model.mdk.vo.PredictResultVO;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import java.sql.Timestamp;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.List;

/**
 * @author PanZhibao
 * @Description
 * @createTime 2024年09月01日
 */
@Component
public class PredictItemNormalHandlerImpl implements PredictItemHandler {

    @Autowired
    private MmPredictModelService mmPredictModelService;

    @Autowired
    private PredictModelHandler predictModelHandler;

    @Override
    public PredictResultVO predict(Date predictTime, ItemVO predictItemDto)
            throws ItemInvokeException{
        String itemId = predictItemDto.getId();
        ItemPredictStatus itemStatus = ItemPredictStatus.PREDICTING;
        PredictResultVO finalResult = new PredictResultVO();
        PredictResultVO predictResult = new PredictResultVO();
        List<PredictResultVO> predictResultList = new ArrayList<>();
        try {
            // 获取预测项模型
            List<MmPredictModelEntity> predictModelList = mmPredictModelService.getActiveModelByItemId(itemId);
            if (CollectionUtils.isAnyEmpty(predictModelList)) {
                throw new ModelInvokeException(MessageFormat.format("{0},itemId={1}",
                        ModelInvokeException.errorGetModelEntity, itemId));
            }
            for (MmPredictModelEntity predictModel : predictModelList) {
                predictResult = predictModelHandler.predictByModel(predictTime, predictModel);
                predictResult.setPredictId(itemId);
                predictResultList.add(predictResult);
            }
            itemStatus = ItemPredictStatus.SUCCESS;
            Calendar calendar = Calendar.getInstance();
            calendar.setTime(predictTime);
            calendar.add(Calendar.MINUTE, predictResult.getPredictMatrix().length - 1);
            Timestamp endTime = new Timestamp(calendar.getTime().getTime());
            finalResult = predictResultList.get(0);

        } catch (Exception ex) {
            ex.printStackTrace();
            //预测项预测失败的状态
            itemStatus = ItemPredictStatus.FAILED;
            throw new ItemInvokeException(MessageFormat.format("{0},itemId={1}",
                    ItemInvokeException.errorItemFailed, itemId));
        }

        return finalResult;
    }
}