package com.ruoyi.device.service.impl;

import com.ruoyi.device.domain.api.IAircraftDomain;
import com.ruoyi.device.domain.api.IDeviceDomain;
import com.ruoyi.device.domain.api.IDockAircraftDomain;
import com.ruoyi.device.domain.api.IDockDomain;
import com.ruoyi.device.domain.api.IThingsBoardDomain;
import com.ruoyi.device.domain.model.Aircraft;
import com.ruoyi.device.domain.model.Device;
import com.ruoyi.device.domain.model.Dock;
import com.ruoyi.device.domain.model.DockAircraft;
import com.ruoyi.device.domain.model.thingsboard.AttributeMap;
import com.ruoyi.device.domain.model.thingsboard.DeviceInfo;
import com.ruoyi.device.domain.model.thingsboard.constants.DeviceAttributes;
import com.ruoyi.device.service.enums.DeviceType;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Service;
import org.springframework.util.StringUtils;

import java.util.List;
import java.util.Objects;
import java.util.Optional;

@Service
public class SynService {

    private static final Logger log = LoggerFactory.getLogger(SynService.class);

    private final IThingsBoardDomain iThingsBoardDomain;

    @Autowired
    private IDeviceDomain deviceDomain;

    @Autowired
    private IDockDomain dockDomain;

    @Autowired
    private IAircraftDomain aircraftDomain;

    @Autowired
    private IDockAircraftDomain dockAircraftDomain;

    public SynService(IThingsBoardDomain iThingsBoardDomain) {
        this.iThingsBoardDomain = iThingsBoardDomain;
    }

    /**
     * 定时任务：同步基础表数据
     * 执行时间：启动后1分钟开始，每2分钟执行一次（可通过配置文件修改）
     * 配置项：device.schedule.print-devices.initial-delay 初始延迟时间（毫秒）
     *        device.schedule.print-devices.fixed-delay 执行间隔时间（毫秒）
     */
    @Scheduled(initialDelayString = "${device.schedule.update-devices.initial-delay:60000}",
            fixedDelayString = "${device.schedule.update-devices.fixed-delay:120000}")
    public void updateDevicesScheduled() {
        try {
            log.info("========== 开始执行定时任务：同步基础表数据 ==========");

            Iterable<List<DeviceInfo>> allDevices = iThingsBoardDomain.getAllDevices();
            int totalCount = 0;

            for (List<DeviceInfo> deviceBatch : allDevices) {
                for (DeviceInfo deviceInfo : deviceBatch) {
                    try {
                        // 获取设备属性
                        AttributeMap attributes = iThingsBoardDomain.getDeviceAttributes(deviceInfo.getId());

                        // 判断设备类型
                        DeviceType deviceType = determineDeviceType(deviceInfo, attributes);

                        // 同步设备表
                        Long deviceId = syncDevice(deviceInfo, attributes, deviceType);

                        // 根据设备类型进行不同的处理
                        if (deviceType == DeviceType.DOCK) {
                            // 机场：同步机场表
                            syncDock(deviceId, deviceInfo.getName());

                            // 获取机场挂载的无人机SN号
                            Optional<String> subDeviceSnOpt = attributes.get(DeviceAttributes.SUB_DEVICE_SN);
                            if (subDeviceSnOpt.isPresent() && StringUtils.hasText(subDeviceSnOpt.get())) {
                                String aircraftSn = subDeviceSnOpt.get();
                                // 通过SN号查找无人机设备
                                Device aircraftDevice = findDeviceBySn(aircraftSn);
                                if (aircraftDevice != null) {
                                    // 同步机场无人机关联
                                    syncDockAircraft(deviceId, aircraftDevice.getDeviceId());
                                }
                            }
                        } else if (deviceType == DeviceType.AIRCRAFT) {
                            // 无人机：同步无人机表
                            syncAircraft(deviceId, deviceInfo.getName());
                        }
                        // 网关类型不需要额外处理
                        totalCount++;
                    } catch (Exception e) {
                        log.error("同步设备失败: deviceId={}, deviceName={}, error={}",
                                deviceInfo.getId(), deviceInfo.getName(), e.getMessage(), e);
                    }
                }
            }

            log.info("========== 数据同步任务完成，共同步 {} 个设备 ==========", totalCount);
        } catch (Exception e) {
            log.error("数据同步任务执行失败: {}", e.getMessage(), e);
        }
    }

    /**
     * 判断设备类型
     * 优化后的判断逻辑：
     * 1. 优先使用 ThingsBoard 标准的 additionalInfo.gateway 字段判断网关
     * 2. 对于非网关设备，通过 dock_sn 属性区分机场和无人机
     *
     * @param deviceInfo ThingsBoard设备信息
     * @param attributes 设备属性
     * @return 设备类型
     */
    private DeviceType determineDeviceType(DeviceInfo deviceInfo, AttributeMap attributes) {
        String deviceName = deviceInfo.getName();

        // 1. 使用 ThingsBoard 标准方式判断网关：检查 additionalInfo 中的 gateway 字段
        if (deviceInfo.isGateway()) {
            return DeviceType.GATEWAY;
        }

        // 2. 非网关设备：通过 dock_sn 属性区分机场和无人机
        Optional<String> dockSnOpt = attributes.get(DeviceAttributes.DOCK_SN);

        if (dockSnOpt.isPresent() && StringUtils.hasText(dockSnOpt.get())) {
            String dockSn = dockSnOpt.get();
            // dock_sn 等于设备名称 -> 机场
            // dock_sn 不等于设备名称 -> 无人机（挂载在该机场下）
            return deviceName.equals(dockSn) ? DeviceType.DOCK : DeviceType.AIRCRAFT;
        }

        // dock_sn 属性不存在或为空，无法判断设备类型
        throw new IllegalStateException("无法确定设备类型：设备 " + deviceName + " 缺少 dock_sn 属性");
    }

    /**
     * 同步设备数据
     *
     * @param deviceInfo ThingsBoard设备信息
     * @param attributes 设备属性
     * @param deviceType 设备类型
     * @return 设备主键ID
     */
    private Long syncDevice(DeviceInfo deviceInfo, AttributeMap attributes, DeviceType deviceType) {
        String iotDeviceId = deviceInfo.getId();
        String deviceName = deviceInfo.getName();

        // 使用 ThingsBoard 标准方式获取网关设备ID（通过 EntityRelation）
        String gateway = iThingsBoardDomain.getDeviceGatewayId(iotDeviceId);

        String deviceSn = deviceName; // 使用设备名称作为SN号,网关其实是没有SN号的

        // 查询设备是否已存在
        Device existingDevice = deviceDomain.selectDeviceByIotDeviceId(iotDeviceId);

        if (existingDevice == null) {
            // 设备不存在，插入新设备
            Device newDevice = new Device();
            newDevice.setDeviceName(deviceName);
            newDevice.setIotDeviceId(iotDeviceId);
            newDevice.setDeviceType(deviceType.getCode());
            newDevice.setDeviceSn(deviceSn);
            newDevice.setGateway(gateway);
            newDevice.setCreateBy("system");

            deviceDomain.insertDevice(newDevice);
            log.info("插入新设备: iotDeviceId={}, deviceName={}, deviceType={}", iotDeviceId, deviceName, deviceType);
            return newDevice.getDeviceId();
        } else {
            // 设备已存在，检查是否需要更新
            boolean needUpdate = false;

            if (!Objects.equals(existingDevice.getDeviceName(), deviceName)) {
                existingDevice.setDeviceName(deviceName);
                needUpdate = true;
            }
            if (!Objects.equals(existingDevice.getDeviceType(), deviceType.getCode())) {
                existingDevice.setDeviceType(deviceType.getCode());
                needUpdate = true;
            }
            if (!Objects.equals(existingDevice.getDeviceSn(), deviceSn)) {
                existingDevice.setDeviceSn(deviceSn);
                needUpdate = true;
            }
            if (!Objects.equals(existingDevice.getGateway(), gateway)) {
                existingDevice.setGateway(gateway);
                needUpdate = true;
            }

            if (needUpdate) {
                existingDevice.setUpdateBy("system");
                deviceDomain.updateDevice(existingDevice);
                log.info("更新设备: iotDeviceId={}, deviceName={}, deviceType={}", iotDeviceId, deviceName, deviceType);
            }

            return existingDevice.getDeviceId();
        }
    }

    /**
     * 同步机场数据
     *
     * @param deviceId 设备主键ID
     * @param deviceName 设备名称
     */
    private void syncDock(Long deviceId, String deviceName) {
        // 查询机场是否已存在
        Dock existingDock = dockDomain.selectDockByDeviceId(deviceId);

        if (existingDock == null) {
            // 机场不存在，插入新机场
            Dock newDock = new Dock();
            newDock.setDockName(deviceName);
            newDock.setDeviceId(deviceId);
            newDock.setCreateBy("system");

            dockDomain.insertDock(newDock);
            log.info("插入新机场: deviceId={}, dockName={}", deviceId, deviceName);
        }
        // 机场已存在，无需更新
    }

    /**
     * 同步无人机数据
     *
     * @param deviceId 设备主键ID
     * @param deviceName 设备名称
     * @return 无人机主键ID
     */
    private Long syncAircraft(Long deviceId, String deviceName) {
        // 查询无人机是否已存在
        Aircraft existingAircraft = aircraftDomain.selectAircraftByDeviceId(deviceId);

        if (existingAircraft == null) {
            // 无人机不存在，插入新无人机
            Aircraft newAircraft = new Aircraft();
            newAircraft.setAircraftName(deviceName);
            newAircraft.setDeviceId(deviceId);
            newAircraft.setCreateBy("system");

            aircraftDomain.insertAircraft(newAircraft);
            log.info("插入新无人机: deviceId={}, aircraftName={}", deviceId, deviceName);
            return newAircraft.getAircraftId();
        }
        // 无人机已存在，无需更新
        return existingAircraft.getAircraftId();
    }

    /**
     * 根据设备SN号查找设备
     *
     * @param deviceSn 设备SN号
     * @return 设备信息
     */
    private Device findDeviceBySn(String deviceSn) {
        Device queryDevice = new Device();
        queryDevice.setDeviceSn(deviceSn);
        List<Device> devices = deviceDomain.selectDeviceList(queryDevice);
        return (devices != null && !devices.isEmpty()) ? devices.get(0) : null;
    }

    /**
     * 同步机场无人机关联数据
     * 按照一个机场只会挂载一台无人机的逻辑进行处理
     *
     * @param dockDeviceId 机场设备主键ID
     * @param aircraftDeviceId 无人机设备主键ID
     */
    private void syncDockAircraft(Long dockDeviceId, Long aircraftDeviceId) {
        // 获取机场主键
        Dock dock = dockDomain.selectDockByDeviceId(dockDeviceId);
        if (dock == null) {
            log.warn("机场不存在，无法同步机场无人机关联: dockDeviceId={}", dockDeviceId);
            return;
        }

        // 获取无人机主键
        Aircraft aircraft = aircraftDomain.selectAircraftByDeviceId(aircraftDeviceId);
        if (aircraft == null) {
            log.warn("无人机不存在，无法同步机场无人机关联: aircraftDeviceId={}", aircraftDeviceId);
            return;
        }

        Long dockId = dock.getDockId();
        Long aircraftId = aircraft.getAircraftId();

        // 查询该机场是否已有关联
        List<DockAircraft> existingRelations = dockAircraftDomain.selectDockAircraftByDockId(dockId);

        if (existingRelations == null || existingRelations.isEmpty()) {
            // 机场没有关联，插入新关联
            DockAircraft newRelation = new DockAircraft();
            newRelation.setDockId(dockId);
            newRelation.setAircraftId(aircraftId);
            newRelation.setCreateBy("system");

            dockAircraftDomain.insertDockAircraft(newRelation);
            log.info("插入机场无人机关联: dockId={}, aircraftId={}", dockId, aircraftId);
        } else {
            // 机场已有关联，检查是否需要更新
            DockAircraft existingRelation = existingRelations.get(0);
            if (!Objects.equals(existingRelation.getAircraftId(), aircraftId)) {
                // 无人机发生变化，更新关联
                existingRelation.setAircraftId(aircraftId);
                existingRelation.setUpdateBy("system");
                dockAircraftDomain.updateDockAircraft(existingRelation);
                log.info("更新机场无人机关联: dockId={}, aircraftId={}", dockId, aircraftId);
            }
        }
    }
}