package com.zy.acs.manager.core.service;

import com.alibaba.fastjson.JSON;
import com.zy.acs.framework.common.Cools;
import com.zy.acs.framework.common.SnowflakeIdWorker;
import com.zy.acs.manager.common.domain.TaskDto;
import com.zy.acs.manager.common.exception.BusinessException;
import com.zy.acs.manager.manager.entity.Code;
import com.zy.acs.manager.manager.entity.Loc;
import com.zy.acs.manager.manager.entity.Sta;
import com.zy.acs.manager.manager.entity.Task;
import com.zy.acs.manager.manager.enums.TaskTypeType;
import com.zy.acs.manager.manager.service.CodeService;
import com.zy.acs.manager.manager.service.LocService;
import com.zy.acs.manager.manager.service.StaService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import java.util.ArrayList;
import java.util.List;
import java.util.Objects;

/**
 * Created by vincent on 2023/6/14
 */
@Component("validService")
public class ValidService {

    @Autowired
    private StaService staService;
    @Autowired
    private LocService locService;
    @Autowired
    private CodeService codeService;
    @Autowired
    private MapService mapService;
    @Autowired
    private SnowflakeIdWorker snowflakeIdWorker;

    public List<Task> validTaskDtoList(List<TaskDto> taskDtoList) {
        List<Task> taskList = new ArrayList<>();
        for (TaskDto taskDto : taskDtoList) {
            if (Cools.isEmpty(taskDto.getSeqNum())) {
                throw new BusinessException("Task seqNum can't be empty!");
            }
            Task task = new Task();
            taskList.add(task);
            task.setUuid(String.valueOf(snowflakeIdWorker.nextId()).substring(3));
            task.setSeqNum(taskDto.getSeqNum());
            task.setPriority(taskDto.getPriority());

            // ori --------------------------
            if (!Cools.isEmpty(taskDto.getOriLoc())) {
                Loc oriLoc = locService.selecatByLocNo(taskDto.getOriLoc());
                if (null == oriLoc) {
                    throw new BusinessException("oriLoc: " + taskDto.getOriLoc() + " doesn't exist!");
                }
                task.setOriLoc(oriLoc.getId());
//                task.setOriCode(oriLoc.getCode());
            }
            if (!Cools.isEmpty(taskDto.getOriSta())) {
                Sta oriSta = staService.selectByStaNo(taskDto.getOriSta());
                if (null == oriSta) {
                    throw new BusinessException("oriSta: " + taskDto.getOriSta() + " doesn't exist!");
                }
                task.setOriSta(oriSta.getId());
//                task.setOriCode(oriSta.getCode());
            }
            // dest --------------------------
            if (!Cools.isEmpty(taskDto.getDestLoc())) {
                Loc destLoc = locService.selecatByLocNo(taskDto.getDestLoc());
                if (null == destLoc) {
                    throw new BusinessException("destLoc: " + taskDto.getDestLoc() + " doesn't exist!");
                }
                task.setDestLoc(destLoc.getId());
                task.setDestCode(destLoc.getCode());
            }
            if (!Cools.isEmpty(taskDto.getDestSta())) {
                Sta destSta = staService.selectByStaNo(taskDto.getDestSta());
                if (null == destSta) {
                    throw new BusinessException("destSta: " + taskDto.getDestSta() + " doesn't exist!");
                }
                task.setDestSta(destSta.getId());
                task.setDestCode(destSta.getCode());
            }

            // task-type ----------------------------------
            if (null == task.getOriLoc() && null == task.getOriSta()) {
                throw new BusinessException("seNum:" + task.getSeqNum() + " is wrong，there must be at least one of oriLoc and oriSta");
            }
            if (null != task.getOriLoc() && null != task.getOriSta()) {
                throw new BusinessException("seNum:" + task.getSeqNum() + " is wrong，there must be at least one of oriLoc and oriSta");
            }
            if (null == task.getDestLoc() && null == task.getDestSta()) {
                throw new BusinessException("seNum:" + task.getSeqNum() + " is wrong，either destLoc and destSta must be present");
            }
            if (null != task.getDestLoc() && null != task.getDestSta()) {
                throw new BusinessException("seNum:" + task.getSeqNum() + " is wrong，either destLoc and destSta must be present");
            }
            if (null != task.getOriSta()) {
                if (null != task.getDestLoc()) {
                    task.setTaskType(TaskTypeType.STA_TO_LOC.val());
                }
                if (null != task.getDestSta()) {
                    task.setTaskType(TaskTypeType.STA_TO_STA.val());
                }
            }
            if (null != task.getOriLoc()) {
                if (null != task.getDestLoc()) {
                    task.setTaskType(TaskTypeType.LOC_TO_LOC.val());
                }
                if (null != task.getDestSta()) {
                    task.setTaskType(TaskTypeType.LOC_TO_STA.val());
                }
            }
        }

        // 校验路径合理性
        for (Task task : taskList) {
            Code startCode = null;
            Code endCode = null;
            Loc oriLoc = null; Loc destLoc = null;
            Sta oriSta = null; Sta destSta = null;
            List<String> pathList = null;
            switch (Objects.requireNonNull(TaskTypeType.get(task.getTaskTypeEl()))) {
                case LOC_TO_LOC:
                    oriLoc = locService.getById(task.getOriLoc());
                    destLoc = locService.getById(task.getDestLoc());

                    startCode = codeService.getById(oriLoc.getCode());
                    endCode = codeService.getById(destLoc.getCode());
                    if (null == startCode) {
                        throw new BusinessException("oriLoc：" + oriLoc.getLocNo() + " hasn't been bound to a QrCode yet");
                    }
                    if (null == endCode) {
                        throw new BusinessException("destLoc：" + destLoc.getLocNo() + " is not bound to a QrCode yet");
                    }
                    pathList = mapService.validFeasibility(startCode, endCode);
                    if (Cools.isEmpty(pathList)) {
                        throw new BusinessException("seqNum:" + task.getSeqNum() + " is wrong，oriLoc：" + task.getOriLoc() + " is unable to reach destLoc" + task.getDestLoc());
                    }
                    task.setPhase(JSON.toJSONString(pathList));
                    break;
                case LOC_TO_STA:
                    oriLoc = locService.getById(task.getOriLoc());
                    destSta = staService.getById(task.getDestSta());

                    startCode = codeService.getById(oriLoc.getCode());
                    endCode = codeService.getById(destSta.getCode());
                    if (null == startCode) {
                        throw new BusinessException("oriLoc：" + oriLoc.getLocNo() + " hasn't been bound to QrCode yet");
                    }
                    if (null == endCode) {
                        throw new BusinessException("destSta：" + destSta.getStaNo() + " is not bound to QrCode yet");
                    }
                    pathList = mapService.validFeasibility(startCode, endCode);
                    if (Cools.isEmpty(pathList)) {
                        throw new BusinessException("seqNum:" + task.getSeqNum() + " is wrong，oriLoc：" + task.getOriLoc() + " can't move to destSta" + task.getDestSta());
                    }
                    task.setPhase(JSON.toJSONString(pathList));
                    break;
                case STA_TO_LOC:
                    oriSta = staService.getById(task.getOriSta());
                    destLoc = locService.getById(task.getDestLoc());

                    startCode = codeService.getById(oriSta.getCode());
                    endCode = codeService.getById(destLoc.getCode());
                    if (null == startCode) {
                        throw new BusinessException("oriSta：" + oriSta.getStaNo() + " hasn't bound to QrCode yet");
                    }
                    if (null == endCode) {
                        throw new BusinessException("destLoc：" + destLoc.getLocNo() + " is not bound to QrCode yet");
                    }
                    pathList = mapService.validFeasibility(startCode, endCode);
                    if (Cools.isEmpty(pathList)) {
                        throw new BusinessException("seqNum:" + task.getSeqNum() + " is wrong，oriSta：" + task.getOriSta() + " is unable to react destLoc" + task.getDestLoc());
                    }
                    task.setPhase(JSON.toJSONString(pathList));
                    break;
                case STA_TO_STA:
                    oriSta = staService.getById(task.getOriSta());
                    destSta = staService.getById(task.getDestSta());

                    startCode = codeService.getById(oriSta.getCode());
                    endCode = codeService.getById(destSta.getCode());
                    if (null == startCode) {
                        throw new BusinessException("oriSta：" + oriSta.getStaNo() + " hasn't been bound to a QrCode yet");
                    }
                    if (null == endCode) {
                        throw new BusinessException("destSta：" + destSta.getStaNo() + " is not bound to a QrCode yet");
                    }
                    pathList = mapService.validFeasibility(startCode, endCode);
                    if (Cools.isEmpty(pathList)) {
                        throw new BusinessException("seqNum:" + task.getSeqNum() + " is wrong，oriSta：" + task.getOriSta() + " can't move to destSta" + task.getDestSta());
                    }
                    task.setPhase(JSON.toJSONString(pathList));
                    break;
                default:
                    throw new BusinessException("seqNum:" + task.getSeqNum() + " is wrong， cause this type not exist");
            }

        }

        return taskList;
    }

}