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package com.ruoyi.system.service.impl;
 
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import com.ruoyi.common.utils.DateUtils;
import com.ruoyi.common.utils.SecurityUtils;
import com.ruoyi.system.mapper.SysTaskVehicleMapper;
import com.ruoyi.system.domain.SysTaskVehicle;
import com.ruoyi.system.service.ISysTaskVehicleService;
 
/**
 * 任务车辆关联Service业务层处理
 * 
 * @author ruoyi
 * @date 2024-01-15
 */
@Service
public class SysTaskVehicleServiceImpl implements ISysTaskVehicleService {
    
    @Autowired
    private SysTaskVehicleMapper sysTaskVehicleMapper;
 
    /**
     * 查询任务车辆关联
     * 
     * @param id 任务车辆关联主键
     * @return 任务车辆关联
     */
    @Override
    public SysTaskVehicle selectSysTaskVehicleById(Long id) {
        return sysTaskVehicleMapper.selectSysTaskVehicleById(id);
    }
 
    /**
     * 查询任务车辆关联列表
     * 
     * @param sysTaskVehicle 任务车辆关联
     * @return 任务车辆关联
     */
    @Override
    public List<SysTaskVehicle> selectSysTaskVehicleList(SysTaskVehicle sysTaskVehicle) {
        return sysTaskVehicleMapper.selectSysTaskVehicleList(sysTaskVehicle);
    }
 
    /**
     * 根据任务ID查询关联车辆列表
     * 
     * @param taskId 任务ID
     * @return 任务车辆关联集合
     */
    @Override
    public List<SysTaskVehicle> selectSysTaskVehicleByTaskId(Long taskId) {
        return sysTaskVehicleMapper.selectSysTaskVehicleByTaskId(taskId);
    }
 
    /**
     * 新增任务车辆关联
     * 
     * @param sysTaskVehicle 任务车辆关联
     * @return 结果
     */
    @Override
    @Transactional
    public int insertSysTaskVehicle(SysTaskVehicle sysTaskVehicle) {
        // 设置分配时间和分配人
        if (sysTaskVehicle.getAssignTime() == null) {
            sysTaskVehicle.setAssignTime(DateUtils.getNowDate());
        }
        if (sysTaskVehicle.getAssignBy() == null || sysTaskVehicle.getAssignBy().isEmpty()) {
            sysTaskVehicle.setAssignBy(SecurityUtils.getUsername());
        }
        // 设置默认状态
        if (sysTaskVehicle.getStatus() == null || sysTaskVehicle.getStatus().isEmpty()) {
            sysTaskVehicle.setStatus("ASSIGNED");
        }
        sysTaskVehicle.setCreateTime(DateUtils.getNowDate());
        return sysTaskVehicleMapper.insertSysTaskVehicle(sysTaskVehicle);
    }
 
    /**
     * 修改任务车辆关联
     * 
     * @param sysTaskVehicle 任务车辆关联
     * @return 结果
     */
    @Override
    @Transactional
    public int updateSysTaskVehicle(SysTaskVehicle sysTaskVehicle) {
        sysTaskVehicle.setUpdateTime(DateUtils.getNowDate());
        return sysTaskVehicleMapper.updateSysTaskVehicle(sysTaskVehicle);
    }
 
    /**
     * 批量删除任务车辆关联
     * 
     * @param ids 需要删除的任务车辆关联主键
     * @return 结果
     */
    @Override
    @Transactional
    public int deleteSysTaskVehicleByIds(Long[] ids) {
        return sysTaskVehicleMapper.deleteSysTaskVehicleByIds(ids);
    }
 
    /**
     * 删除任务车辆关联信息
     * 
     * @param id 任务车辆关联主键
     * @return 结果
     */
    @Override
    @Transactional
    public int deleteSysTaskVehicleById(Long id) {
        return sysTaskVehicleMapper.deleteSysTaskVehicleById(id);
    }
 
    /**
     * 根据任务ID删除车辆关联
     * 
     * @param taskId 任务ID
     * @return 结果
     */
    @Override
    @Transactional
    public int deleteSysTaskVehicleByTaskId(Long taskId) {
        return sysTaskVehicleMapper.deleteSysTaskVehicleByTaskId(taskId);
    }
 
    /**
     * 根据任务ID和车辆ID删除关联
     * 
     * @param taskId 任务ID
     * @param vehicleId 车辆ID
     * @return 结果
     */
    @Override
    @Transactional
    public int deleteSysTaskVehicleByTaskIdAndVehicleId(Long taskId, Long vehicleId) {
        return sysTaskVehicleMapper.deleteSysTaskVehicleByTaskIdAndVehicleId(taskId, vehicleId);
    }
 
    /**
     * 检查任务车辆关联是否存在
     * 
     * @param taskId 任务ID
     * @param vehicleId 车辆ID
     * @return 结果
     */
    @Override
    public int checkTaskVehicleExists(Long taskId, Long vehicleId) {
        return sysTaskVehicleMapper.checkTaskVehicleExists(taskId, vehicleId);
    }
 
    /**
     * 批量新增任务车辆关联
     * 
     * @param sysTaskVehicleList 任务车辆关联列表
     * @return 结果
     */
    @Override
    @Transactional
    public int batchInsertSysTaskVehicle(List<SysTaskVehicle> sysTaskVehicleList) {
        return sysTaskVehicleMapper.batchInsertSysTaskVehicle(sysTaskVehicleList);
    }
 
    /**
     * 分配车辆给任务
     * 
     * @param taskId 任务ID
     * @param vehicleId 车辆ID
     * @param remark 备注
     * @return 结果
     */
    @Override
    @Transactional
    public int assignVehicleToTask(Long taskId, Long vehicleId, String remark) {
        // 检查是否已经分配
        int exists = sysTaskVehicleMapper.checkTaskVehicleExists(taskId, vehicleId);
        if (exists > 0) {
            throw new RuntimeException("车辆已经分配给该任务");
        }
        
        SysTaskVehicle taskVehicle = new SysTaskVehicle();
        taskVehicle.setTaskId(taskId);
        taskVehicle.setVehicleId(vehicleId);
        taskVehicle.setAssignTime(DateUtils.getNowDate());
        taskVehicle.setAssignBy(SecurityUtils.getUsername());
        taskVehicle.setStatus("ASSIGNED");
        taskVehicle.setRemark(remark);
        
        return sysTaskVehicleMapper.insertSysTaskVehicle(taskVehicle);
    }
 
    /**
     * 取消任务车辆分配
     * 
     * @param taskId 任务ID
     * @param vehicleId 车辆ID
     * @return 结果
     */
    @Override
    @Transactional
    public int unassignVehicleFromTask(Long taskId, Long vehicleId) {
        return sysTaskVehicleMapper.deleteSysTaskVehicleByTaskIdAndVehicleId(taskId, vehicleId);
    }
 
    /**
     * 批量分配车辆给任务
     * 
     * @param taskId 任务ID
     * @param vehicleIds 车辆ID列表
     * @param remark 备注
     * @return 结果
     */
    @Override
    @Transactional
    public int assignMultipleVehiclesToTask(Long taskId, List<Long> vehicleIds, String remark) {
        List<SysTaskVehicle> taskVehicles = new ArrayList<>();
        Date now = DateUtils.getNowDate();
        String assignBy = SecurityUtils.getUsername();
        
        for (Long vehicleId : vehicleIds) {
            // 检查是否已经分配
            int exists = sysTaskVehicleMapper.checkTaskVehicleExists(taskId, vehicleId);
            if (exists == 0) {
                SysTaskVehicle taskVehicle = new SysTaskVehicle();
                taskVehicle.setTaskId(taskId);
                taskVehicle.setVehicleId(vehicleId);
                taskVehicle.setAssignTime(now);
                taskVehicle.setAssignBy(assignBy);
                taskVehicle.setStatus("ASSIGNED");
                taskVehicle.setRemark(remark);
                taskVehicles.add(taskVehicle);
            }
        }
        
        if (!taskVehicles.isEmpty()) {
            return sysTaskVehicleMapper.batchInsertSysTaskVehicle(taskVehicles);
        }
        
        return 0;
    }
 
    /**
     * 查询可用车辆
     * 
     * @param deptId 部门ID
     * @param taskType 任务类型
     * @return 可用车辆列表
     */
    @Override
    public List<SysTaskVehicle> getAvailableVehicles(Long deptId, String taskType) {
        // 查询指定部门下状态为正常的车辆
        // 这里需要根据实际的车辆信息表结构来实现
        // 暂时返回空列表，实际实现需要：
        // 1. 查询 tb_vehicle_info 表中 dept_id = deptId 且 vehicle_status = '0' 的车辆
        // 2. 排除已经分配给其他未完成任务且状态为 ACTIVE 的车辆
        // 3. 根据任务类型筛选合适的车辆类型
        
        List<SysTaskVehicle> availableVehicles = new ArrayList<>();
        
        // TODO: 实现具体的查询逻辑
        // 示例代码：
        // 1. 查询车辆信息
        // List<TbVehicleInfo> vehicles = vehicleInfoMapper.selectAvailableVehiclesByDept(deptId, taskType);
        // 
        // 2. 转换为 SysTaskVehicle 对象
        // for (TbVehicleInfo vehicle : vehicles) {
        //     SysTaskVehicle taskVehicle = new SysTaskVehicle();
        //     taskVehicle.setVehicleId(vehicle.getVehicleId());
        //     taskVehicle.setVehicleNo(vehicle.getVehicleNo());
        //     taskVehicle.setVehicleType(vehicle.getVehicleType());
        //     taskVehicle.setVehicleBrand(vehicle.getVehicleBrand());
        //     taskVehicle.setVehicleModel(vehicle.getVehicleModel());
        //     availableVehicles.add(taskVehicle);
        // }
        
        return availableVehicles;
    }
 
    /**
     * 更新任务车辆关联状态
     * 
     * @param id 关联ID
     * @param status 新状态
     * @return 结果
     */
    @Override
    @Transactional
    public int updateTaskVehicleStatus(Long id, String status) {
        SysTaskVehicle taskVehicle = new SysTaskVehicle();
        taskVehicle.setId(id);
        taskVehicle.setStatus(status);
        taskVehicle.setUpdateTime(DateUtils.getNowDate());
        return sysTaskVehicleMapper.updateSysTaskVehicle(taskVehicle);
    }
}