83 lines
1.9 KiB
JavaScript
83 lines
1.9 KiB
JavaScript
const { DataTypes } = require('sequelize');
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module.exports = (sequelize) => {
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const Heartbeat = sequelize.define('Heartbeat', {
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id: {
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type: DataTypes.UUID,
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defaultValue: DataTypes.UUIDV4,
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primaryKey: true
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},
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device_id: {
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type: DataTypes.INTEGER,
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allowNull: false,
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references: {
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model: 'devices',
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key: 'id'
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},
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comment: 'ID of the device sending heartbeat'
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},
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device_key: {
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type: DataTypes.STRING,
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allowNull: false,
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comment: 'Unique key of the sensor from heartbeat message'
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},
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signal_strength: {
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type: DataTypes.INTEGER,
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allowNull: true,
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comment: 'Signal strength at time of heartbeat'
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},
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battery_level: {
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type: DataTypes.INTEGER,
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allowNull: true,
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comment: 'Battery level percentage (0-100)'
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},
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temperature: {
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type: DataTypes.DECIMAL(4, 1),
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allowNull: true,
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comment: 'Device temperature in Celsius'
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},
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uptime: {
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type: DataTypes.BIGINT,
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allowNull: true,
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comment: 'Device uptime in seconds'
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},
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memory_usage: {
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type: DataTypes.INTEGER,
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allowNull: true,
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comment: 'Memory usage percentage'
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},
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firmware_version: {
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type: DataTypes.STRING,
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allowNull: true,
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comment: 'Firmware version reported in heartbeat'
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},
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received_at: {
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type: DataTypes.DATE,
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defaultValue: DataTypes.NOW,
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comment: 'When heartbeat was received by server'
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},
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created_at: {
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type: DataTypes.DATE,
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defaultValue: DataTypes.NOW
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}
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}, {
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tableName: 'heartbeats',
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timestamps: true,
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createdAt: 'created_at',
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updatedAt: false,
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indexes: [
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{
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fields: ['device_id']
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},
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{
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fields: ['received_at']
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},
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{
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fields: ['device_id', 'received_at']
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}
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]
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});
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return Heartbeat;
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};
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