430 lines
10 KiB
JavaScript
430 lines
10 KiB
JavaScript
/**
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* 预警控制器
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* @file alertController.js
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* @description 处理预警相关的请求
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*/
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const { Alert, Farm, Device } = require('../models');
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const { Sequelize } = require('sequelize');
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/**
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* 获取所有预警
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* @param {Object} req - 请求对象
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* @param {Object} res - 响应对象
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*/
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exports.getAllAlerts = async (req, res) => {
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try {
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const alerts = await Alert.findAll({
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include: [
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{ model: Farm, as: 'farm', attributes: ['id', 'name', 'location'] },
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{ model: Device, as: 'device', attributes: ['id', 'name', 'type'] }
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],
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order: [['created_at', 'DESC']]
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});
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res.status(200).json({
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success: true,
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data: alerts
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});
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} catch (error) {
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console.error('获取预警列表失败:', error);
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res.status(500).json({
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success: false,
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message: '获取预警列表失败',
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error: error.message
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});
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}
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};
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/**
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* 根据养殖场名称搜索预警
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* @param {Object} req - 请求对象
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* @param {Object} res - 响应对象
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*/
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exports.searchAlertsByFarmName = async (req, res) => {
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try {
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const { farmName } = req.query;
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if (!farmName) {
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return res.status(400).json({
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success: false,
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message: '请提供养殖场名称参数'
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});
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}
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console.log(`开始搜索养殖场名称包含 "${farmName}" 的预警...`);
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// 首先找到匹配的养殖场
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const farms = await Farm.findAll({
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where: {
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name: {
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[require('sequelize').Op.like]: `%${farmName}%`
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}
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},
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attributes: ['id', 'name']
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});
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if (farms.length === 0) {
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return res.status(200).json({
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success: true,
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data: [],
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message: '未找到匹配的养殖场'
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});
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}
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const farmIds = farms.map(farm => farm.id);
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// 根据养殖场ID查找预警
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const alerts = await Alert.findAll({
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where: {
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farm_id: {
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[require('sequelize').Op.in]: farmIds
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}
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},
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include: [
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{ model: Farm, as: 'farm', attributes: ['id', 'name', 'location'] },
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{ model: Device, as: 'device', attributes: ['id', 'name', 'type'] }
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],
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order: [['created_at', 'DESC']]
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});
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console.log(`找到 ${alerts.length} 个匹配的预警`);
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res.status(200).json({
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success: true,
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data: alerts,
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message: `找到 ${alerts.length} 个养殖场名称包含 "${farmName}" 的预警`
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});
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} catch (error) {
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console.error('根据养殖场名称搜索预警失败:', error);
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res.status(500).json({
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success: false,
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message: '搜索预警失败',
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error: error.message
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});
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}
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};
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/**
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* 获取单个预警
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* @param {Object} req - 请求对象
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* @param {Object} res - 响应对象
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*/
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exports.getAlertById = async (req, res) => {
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try {
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const { id } = req.params;
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const alert = await Alert.findByPk(id, {
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include: [
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{ model: Farm, as: 'farm', attributes: ['id', 'name'] },
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{ model: Device, as: 'device', attributes: ['id', 'name', 'type'] }
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]
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});
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if (!alert) {
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return res.status(404).json({
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success: false,
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message: '预警不存在'
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});
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}
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res.status(200).json({
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success: true,
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data: alert
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});
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} catch (error) {
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console.error(`获取预警(ID: ${req.params.id})失败:`, error);
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res.status(500).json({
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success: false,
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message: '获取预警详情失败',
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error: error.message
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});
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}
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};
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/**
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* 创建预警
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* @param {Object} req - 请求对象
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* @param {Object} res - 响应对象
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*/
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exports.createAlert = async (req, res) => {
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try {
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const { type, level, message, status, farm_id, device_id } = req.body;
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// 验证必填字段
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if (!type || !message || !farm_id) {
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return res.status(400).json({
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success: false,
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message: '类型、消息内容和养殖场ID为必填项'
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});
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}
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// 验证养殖场是否存在
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const farm = await Farm.findByPk(farm_id);
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if (!farm) {
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return res.status(404).json({
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success: false,
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message: '指定的养殖场不存在'
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});
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}
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// 如果提供了设备ID，验证设备是否存在
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if (device_id) {
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const device = await Device.findByPk(device_id);
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if (!device) {
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return res.status(404).json({
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success: false,
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message: '指定的设备不存在'
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});
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}
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}
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const alert = await Alert.create({
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type,
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level,
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message,
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status,
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farm_id,
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device_id
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});
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res.status(201).json({
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success: true,
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message: '预警创建成功',
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data: alert
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});
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} catch (error) {
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console.error('创建预警失败:', error);
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res.status(500).json({
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success: false,
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message: '创建预警失败',
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error: error.message
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});
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}
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};
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/**
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* 更新预警
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* @param {Object} req - 请求对象
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* @param {Object} res - 响应对象
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*/
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exports.updateAlert = async (req, res) => {
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try {
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const { id } = req.params;
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const { type, level, message, status, farm_id, device_id, resolved_at, resolved_by, resolution_notes } = req.body;
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const alert = await Alert.findByPk(id);
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if (!alert) {
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return res.status(404).json({
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success: false,
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message: '预警不存在'
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});
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}
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// 如果更新了养殖场ID，验证养殖场是否存在
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if (farm_id && farm_id !== alert.farm_id) {
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const farm = await Farm.findByPk(farm_id);
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if (!farm) {
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return res.status(404).json({
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success: false,
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message: '指定的养殖场不存在'
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});
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}
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}
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// 如果更新了设备ID，验证设备是否存在
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if (device_id && device_id !== alert.device_id) {
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const device = await Device.findByPk(device_id);
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if (!device) {
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return res.status(404).json({
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success: false,
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message: '指定的设备不存在'
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});
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}
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}
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// 如果状态更新为已解决，自动设置解决时间
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let updateData = {
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type,
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level,
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message,
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status,
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farm_id,
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device_id,
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resolved_at,
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resolved_by,
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resolution_notes
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};
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// 只更新提供的字段
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Object.keys(updateData).forEach(key => {
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if (updateData[key] === undefined) {
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delete updateData[key];
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}
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})
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if (status === 'resolved' && !resolved_at) {
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updateData.resolved_at = new Date();
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}
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await alert.update(updateData);
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res.status(200).json({
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success: true,
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message: '预警更新成功',
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data: alert
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});
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} catch (error) {
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console.error(`更新预警(ID: ${req.params.id})失败:`, error);
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res.status(500).json({
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success: false,
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message: '更新预警失败',
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error: error.message
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});
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}
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};
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/**
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* 删除预警
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* @param {Object} req - 请求对象
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* @param {Object} res - 响应对象
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*/
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exports.deleteAlert = async (req, res) => {
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try {
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const { id } = req.params;
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const alert = await Alert.findByPk(id);
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if (!alert) {
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return res.status(404).json({
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success: false,
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message: '预警不存在'
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});
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}
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await alert.destroy();
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res.status(200).json({
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success: true,
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message: '预警删除成功'
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});
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} catch (error) {
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console.error(`删除预警(ID: ${req.params.id})失败:`, error);
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res.status(500).json({
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success: false,
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message: '删除预警失败',
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error: error.message
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});
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}
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};
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/**
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* 按类型统计预警数量
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* @param {Object} req - 请求对象
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* @param {Object} res - 响应对象
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*/
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exports.getAlertStatsByType = async (req, res) => {
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try {
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const { sequelize } = require('../config/database-simple');
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const stats = await Alert.findAll({
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attributes: [
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'type',
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[sequelize.fn('COUNT', sequelize.col('id')), 'count']
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],
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group: ['type'],
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raw: true
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});
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// 格式化数据
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const formattedStats = stats.map(item => ({
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type: item.type,
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count: parseInt(item.count) || 0
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}));
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res.status(200).json({
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success: true,
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data: formattedStats
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});
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} catch (error) {
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console.error('获取预警类型统计失败:', error);
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res.status(500).json({
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success: false,
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message: '获取预警类型统计失败',
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error: error.message
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});
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}
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};
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/**
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* 按级别统计预警数量
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* @param {Object} req - 请求对象
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* @param {Object} res - 响应对象
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*/
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exports.getAlertStatsByLevel = async (req, res) => {
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try {
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const { sequelize } = require('../config/database-simple');
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const stats = await Alert.findAll({
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attributes: [
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'level',
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[sequelize.fn('COUNT', sequelize.col('id')), 'count']
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],
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group: ['level'],
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raw: true
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});
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// 格式化数据
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const formattedStats = stats.map(item => ({
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level: item.level,
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count: parseInt(item.count) || 0
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}));
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res.status(200).json({
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success: true,
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data: formattedStats
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});
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} catch (error) {
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console.error('获取预警级别统计失败:', error);
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res.status(500).json({
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success: false,
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message: '获取预警级别统计失败',
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error: error.message
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});
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}
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};
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/**
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* 按状态统计预警数量
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* @param {Object} req - 请求对象
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* @param {Object} res - 响应对象
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*/
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exports.getAlertStatsByStatus = async (req, res) => {
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try {
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const { sequelize } = require('../config/database-simple');
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const stats = await Alert.findAll({
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attributes: [
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'status',
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[sequelize.fn('COUNT', sequelize.col('id')), 'count']
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],
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group: ['status'],
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raw: true
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});
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// 格式化数据
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const formattedStats = stats.map(item => ({
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status: item.status,
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count: parseInt(item.count) || 0
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}));
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res.status(200).json({
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success: true,
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data: formattedStats
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});
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} catch (error) {
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console.error('获取预警状态统计失败:', error);
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res.status(500).json({
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success: false,
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message: '获取预警状态统计失败',
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error: error.message
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});
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}
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}; |