/**
 * 绑定信息控制器
 * @file bindingController.js
 * @description 处理耳标与牛只档案的绑定信息查询
 */

const { IotJbqClient, IotCattle, Farm, CattlePen, CattleBatch } = require('../models');
const { Op } = require('sequelize');

/**
 * 获取耳标绑定信息
 * @param {Object} req - 请求对象
 * @param {Object} res - 响应对象
 */
const getBindingInfo = async (req, res) => {
  try {
    const { cid } = req.params;
    
    if (!cid) {
      return res.status(400).json({
        success: false,
        message: '耳标编号不能为空',
        data: null
      });
    }

    // 查询耳标信息
    const jbqDevice = await IotJbqClient.findOne({
      where: { cid: cid },
      attributes: [
        'id', 'cid', 'aaid', 'org_id', 'uid', 'time', 'uptime', 'sid',
        'walk', 'y_steps', 'r_walk', 'lat', 'lon', 'gps_state', 'voltage',
        'temperature', 'temperature_two', 'state', 'type', 'sort', 'ver',
        'weight', 'start_time', 'run_days', 'zenowalk', 'zenotime',
        'is_read', 'read_end_time', 'bank_userid', 'bank_item_id',
        'bank_house', 'bank_lanwei', 'bank_place', 'is_home',
        'distribute_time', 'bandge_status', 'is_wear', 'is_temperature',
        'source_id', 'expire_time'
      ]
    });

    if (!jbqDevice) {
      return res.status(404).json({
        success: false,
        message: '未找到指定的耳标设备',
        data: null
      });
    }

    // 查询绑定的牛只档案信息
    const cattleInfo = await IotCattle.findOne({
      where: { ear_number: cid },
      include: [
        {
          model: Farm,
          as: 'farm',
          attributes: ['id', 'name', 'address', 'contact', 'phone']
        },
        {
          model: CattlePen,
          as: 'pen',
          attributes: ['id', 'name', 'description']
        },
        {
          model: CattleBatch,
          as: 'batch',
          attributes: ['id', 'name', 'description', 'start_date', 'end_date']
        }
      ],
      attributes: [
        'id', 'orgId', 'earNumber', 'sex', 'strain', 'varieties', 'cate',
        'birthWeight', 'birthday', 'penId', 'intoTime', 'parity', 'source',
        'sourceDay', 'sourceWeight', 'weight', 'event', 'eventTime',
        'lactationDay', 'semenNum', 'isWear', 'batchId', 'imgs',
        'isEleAuth', 'isQuaAuth', 'isDelete', 'isOut', 'createUid',
        'createTime', 'algebra', 'colour', 'infoWeight', 'descent',
        'isVaccin', 'isInsemination', 'isInsure', 'isMortgage',
        'updateTime', 'breedBullTime', 'level', 'sixWeight',
        'eighteenWeight', 'twelveDayWeight', 'eighteenDayWeight',
        'xxivDayWeight', 'semenBreedImgs', 'sellStatus',
        'weightCalculateTime', 'dayOfBirthday'
      ]
    });

    // 构建响应数据
    const bindingInfo = {
      device: {
        id: jbqDevice.id,
        cid: jbqDevice.cid,
        aaid: jbqDevice.aaid,
        orgId: jbqDevice.org_id,
        uid: jbqDevice.uid,
        time: jbqDevice.time,
        uptime: jbqDevice.uptime,
        sid: jbqDevice.sid,
        walk: jbqDevice.walk,
        ySteps: jbqDevice.y_steps,
        rWalk: jbqDevice.r_walk,
        lat: jbqDevice.lat,
        lon: jbqDevice.lon,
        gpsState: jbqDevice.gps_state,
        voltage: jbqDevice.voltage,
        temperature: jbqDevice.temperature,
        temperatureTwo: jbqDevice.temperature_two,
        state: jbqDevice.state,
        type: jbqDevice.type,
        sort: jbqDevice.sort,
        ver: jbqDevice.ver,
        weight: jbqDevice.weight,
        startTime: jbqDevice.start_time,
        runDays: jbqDevice.run_days,
        zenowalk: jbqDevice.zenowalk,
        zenotime: jbqDevice.zenotime,
        isRead: jbqDevice.is_read,
        readEndTime: jbqDevice.read_end_time,
        bankUserid: jbqDevice.bank_userid,
        bankItemId: jbqDevice.bank_item_id,
        bankHouse: jbqDevice.bank_house,
        bankLanwei: jbqDevice.bank_lanwei,
        bankPlace: jbqDevice.bank_place,
        isHome: jbqDevice.is_home,
        distributeTime: jbqDevice.distribute_time,
        bandgeStatus: jbqDevice.bandge_status,
        isWear: jbqDevice.is_wear,
        isTemperature: jbqDevice.is_temperature,
        sourceId: jbqDevice.source_id,
        expireTime: jbqDevice.expire_time
      },
      cattle: cattleInfo ? {
        id: cattleInfo.id,
        orgId: cattleInfo.orgId,
        earNumber: cattleInfo.earNumber,
        sex: cattleInfo.sex,
        strain: cattleInfo.strain,
        varieties: cattleInfo.varieties,
        cate: cattleInfo.cate,
        birthWeight: cattleInfo.birthWeight,
        birthday: cattleInfo.birthday,
        penId: cattleInfo.penId,
        intoTime: cattleInfo.intoTime,
        parity: cattleInfo.parity,
        source: cattleInfo.source,
        sourceDay: cattleInfo.sourceDay,
        sourceWeight: cattleInfo.sourceWeight,
        weight: cattleInfo.weight,
        event: cattleInfo.event,
        eventTime: cattleInfo.eventTime,
        lactationDay: cattleInfo.lactationDay,
        semenNum: cattleInfo.semenNum,
        isWear: cattleInfo.isWear,
        batchId: cattleInfo.batchId,
        imgs: cattleInfo.imgs,
        isEleAuth: cattleInfo.isEleAuth,
        isQuaAuth: cattleInfo.isQuaAuth,
        isDelete: cattleInfo.isDelete,
        isOut: cattleInfo.isOut,
        createUid: cattleInfo.createUid,
        createTime: cattleInfo.createTime,
        algebra: cattleInfo.algebra,
        colour: cattleInfo.colour,
        infoWeight: cattleInfo.infoWeight,
        descent: cattleInfo.descent,
        isVaccin: cattleInfo.isVaccin,
        isInsemination: cattleInfo.isInsemination,
        isInsure: cattleInfo.isInsure,
        isMortgage: cattleInfo.isMortgage,
        updateTime: cattleInfo.updateTime,
        breedBullTime: cattleInfo.breedBullTime,
        level: cattleInfo.level,
        sixWeight: cattleInfo.sixWeight,
        eighteenWeight: cattleInfo.eighteenWeight,
        twelveDayWeight: cattleInfo.twelveDayWeight,
        eighteenDayWeight: cattleInfo.eighteenDayWeight,
        xxivDayWeight: cattleInfo.xxivDayWeight,
        semenBreedImgs: cattleInfo.semenBreedImgs,
        sellStatus: cattleInfo.sellStatus,
        weightCalculateTime: cattleInfo.weightCalculateTime,
        dayOfBirthday: cattleInfo.dayOfBirthday,
        farm: cattleInfo.farm,
        pen: cattleInfo.pen,
        batch: cattleInfo.batch
      } : null,
      isBound: !!cattleInfo,
      bindingStatus: cattleInfo ? '已绑定' : '未绑定'
    };

    res.json({
      success: true,
      message: '获取绑定信息成功',
      data: bindingInfo,
      timestamp: new Date().toISOString()
    });

  } catch (error) {
    console.error('获取绑定信息失败:', error);
    res.status(500).json({
      success: false,
      message: '获取绑定信息失败: ' + error.message,
      data: null,
      timestamp: new Date().toISOString()
    });
  }
};

/**
 * 获取所有绑定状态统计
 * @param {Object} req - 请求对象
 * @param {Object} res - 响应对象
 */
const getBindingStats = async (req, res) => {
  try {
    // 统计绑定状态
    const stats = await IotJbqClient.findAll({
      attributes: [
        'bandge_status',
        [IotJbqClient.sequelize.fn('COUNT', IotJbqClient.sequelize.col('id')), 'count']
      ],
      group: ['bandge_status'],
      raw: true
    });

    // 统计匹配情况
    const matchStats = await IotJbqClient.findAll({
      attributes: [
        [IotJbqClient.sequelize.fn('COUNT', IotJbqClient.sequelize.col('IotJbqClient.id')), 'total_jbq'],
        [IotJbqClient.sequelize.fn('COUNT', IotJbqClient.sequelize.col('cattle.id')), 'matched_count']
      ],
      include: [
        {
          model: IotCattle,
          as: 'cattle',
          attributes: [],
          required: false,
          where: {
            earNumber: IotJbqClient.sequelize.col('IotJbqClient.cid')
          }
        }
      ],
      raw: true
    });

    const result = {
      bindingStats: stats.map(stat => ({
        status: stat.bandge_status === 1 ? '已绑定' : '未绑定',
        count: parseInt(stat.count)
      })),
      matchStats: {
        totalJbq: parseInt(matchStats[0]?.total_jbq || 0),
        matchedCount: parseInt(matchStats[0]?.matched_count || 0),
        matchRate: matchStats[0]?.total_jbq > 0 
          ? ((matchStats[0]?.matched_count / matchStats[0]?.total_jbq) * 100).toFixed(2) + '%'
          : '0%'
      }
    };

    res.json({
      success: true,
      message: '获取绑定统计成功',
      data: result,
      timestamp: new Date().toISOString()
    });

  } catch (error) {
    console.error('获取绑定统计失败:', error);
    res.status(500).json({
      success: false,
      message: '获取绑定统计失败: ' + error.message,
      data: null,
      timestamp: new Date().toISOString()
    });
  }
};

/**
 * 手动绑定耳标与牛只档案
 * @param {Object} req - 请求对象
 * @param {Object} res - 响应对象
 */
const bindCattle = async (req, res) => {
  try {
    const { cid, cattleId } = req.body;
    
    if (!cid || !cattleId) {
      return res.status(400).json({
        success: false,
        message: '耳标编号和牛只ID不能为空',
        data: null
      });
    }

    // 检查耳标是否存在
    const jbqDevice = await IotJbqClient.findOne({
      where: { cid: cid }
    });

    if (!jbqDevice) {
      return res.status(404).json({
        success: false,
        message: '未找到指定的耳标设备',
        data: null
      });
    }

    // 检查牛只档案是否存在
    const cattle = await IotCattle.findByPk(cattleId);
    if (!cattle) {
      return res.status(404).json({
        success: false,
        message: '未找到指定的牛只档案',
        data: null
      });
    }

    // 更新牛只档案的耳标号
    await cattle.update({
      earNumber: cid,
      updateTime: Math.floor(Date.now() / 1000)
    });

    // 更新耳标的绑定状态
    await jbqDevice.update({
      bandge_status: 1
    });

    res.json({
      success: true,
      message: '绑定成功',
      data: {
        cid: cid,
        cattleId: cattleId,
        bindingStatus: '已绑定'
      },
      timestamp: new Date().toISOString()
    });

  } catch (error) {
    console.error('绑定失败:', error);
    res.status(500).json({
      success: false,
      message: '绑定失败: ' + error.message,
      data: null,
      timestamp: new Date().toISOString()
    });
  }
};

/**
 * 解绑耳标与牛只档案
 * @param {Object} req - 请求对象
 * @param {Object} res - 响应对象
 */
const unbindCattle = async (req, res) => {
  try {
    const { cid } = req.params;
    
    if (!cid) {
      return res.status(400).json({
        success: false,
        message: '耳标编号不能为空',
        data: null
      });
    }

    // 查找绑定的牛只档案
    const cattle = await IotCattle.findOne({
      where: { earNumber: cid }
    });

    if (cattle) {
      // 清除牛只档案的耳标号
      await cattle.update({
        earNumber: null,
        updateTime: Math.floor(Date.now() / 1000)
      });
    }

    // 更新耳标的绑定状态
    const jbqDevice = await IotJbqClient.findOne({
      where: { cid: cid }
    });

    if (jbqDevice) {
      await jbqDevice.update({
        bandge_status: 0
      });
    }

    res.json({
      success: true,
      message: '解绑成功',
      data: {
        cid: cid,
        bindingStatus: '未绑定'
      },
      timestamp: new Date().toISOString()
    });

  } catch (error) {
    console.error('解绑失败:', error);
    res.status(500).json({
      success: false,
      message: '解绑失败: ' + error.message,
      data: null,
      timestamp: new Date().toISOString()
    });
  }
};

module.exports = {
  getBindingInfo,
  getBindingStats,
  bindCattle,
  unbindCattle
};