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52
app/api/sensors/config/route.ts
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52
app/api/sensors/config/route.ts
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import { NextResponse } from 'next/server';
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// Sensor configuration that matches the API route
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const SENSOR_CONFIG = [
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// Head area
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{ id: "head-1", x: 45, y: 15, zone: "head", label: "Head Left", pin: 2 },
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{ id: "head-2", x: 55, y: 15, zone: "head", label: "Head Right", pin: 3 },
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// Shoulder area
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{ id: "shoulder-1", x: 35, y: 25, zone: "shoulders", label: "Left Shoulder", pin: 4 },
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{ id: "shoulder-2", x: 65, y: 25, zone: "shoulders", label: "Right Shoulder", pin: 5 },
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// Upper back
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{ id: "back-1", x: 40, y: 35, zone: "back", label: "Upper Back Left", pin: 6 },
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{ id: "back-2", x: 50, y: 35, zone: "back", label: "Upper Back Center", pin: 7 },
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{ id: "back-3", x: 60, y: 35, zone: "back", label: "Upper Back Right", pin: 8 },
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// Lower back/Hip area
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{ id: "hip-1", x: 35, y: 50, zone: "hips", label: "Left Hip", pin: 9 },
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{ id: "hip-2", x: 50, y: 50, zone: "hips", label: "Lower Back", pin: 10 },
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{ id: "hip-3", x: 65, y: 50, zone: "hips", label: "Right Hip", pin: 11 },
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// Thigh area
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{ id: "thigh-1", x: 40, y: 65, zone: "legs", label: "Left Thigh", pin: 12 },
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{ id: "thigh-2", x: 60, y: 65, zone: "legs", label: "Right Thigh", pin: 13 },
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// Calf area (mock data)
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{ id: "calf-1", x: 40, y: 75, zone: "legs", label: "Left Calf" },
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{ id: "calf-2", x: 60, y: 75, zone: "legs", label: "Right Calf" },
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// Feet (mock data)
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{ id: "feet-1", x: 45, y: 85, zone: "feet", label: "Left Foot" },
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{ id: "feet-2", x: 55, y: 85, zone: "feet", label: "Right Foot" },
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];
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export async function GET() {
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try {
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return NextResponse.json({
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success: true,
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sensors: SENSOR_CONFIG,
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timestamp: new Date().toISOString()
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});
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} catch (error) {
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console.error('Sensor config API error:', error);
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return NextResponse.json({
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success: false,
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error: 'Failed to get sensor configuration',
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sensors: [],
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timestamp: new Date().toISOString()
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}, { status: 500 });
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}
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}
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295
app/api/sensors/route.ts
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295
app/api/sensors/route.ts
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import { NextRequest, NextResponse } from 'next/server';
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import { BedHardware, PinState, PinChange } from '@/services/BedHardware';
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// Complete sensor configuration with positions and pin mappings
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const SENSOR_CONFIG = [
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// Head area
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{ id: "head-1", x: 45, y: 15, zone: "head", label: "Head Left", pin: 2, baseNoise: 15 },
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{ id: "head-2", x: 55, y: 15, zone: "head", label: "Head Right", pin: 3, baseNoise: 12 },
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// Shoulder area
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{ id: "shoulder-1", x: 35, y: 25, zone: "shoulders", label: "Left Shoulder", pin: 4, baseNoise: 20 },
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{ id: "shoulder-2", x: 65, y: 25, zone: "shoulders", label: "Right Shoulder", pin: 5, baseNoise: 18 },
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// Upper back
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{ id: "back-1", x: 40, y: 35, zone: "back", label: "Upper Back Left", pin: 6, baseNoise: 25 },
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{ id: "back-2", x: 50, y: 35, zone: "back", label: "Upper Back Center", pin: 7, baseNoise: 30 },
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{ id: "back-3", x: 60, y: 35, zone: "back", label: "Upper Back Right", pin: 8, baseNoise: 22 },
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// Lower back/Hip area
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{ id: "hip-1", x: 35, y: 50, zone: "hips", label: "Left Hip", pin: 9, baseNoise: 35 },
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{ id: "hip-2", x: 50, y: 50, zone: "hips", label: "Lower Back", pin: 10, baseNoise: 40 },
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{ id: "hip-3", x: 65, y: 50, zone: "hips", label: "Right Hip", pin: 11, baseNoise: 32 },
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// Thigh area
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{ id: "thigh-1", x: 40, y: 65, zone: "legs", label: "Left Thigh", pin: 12, baseNoise: 28 },
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{ id: "thigh-2", x: 60, y: 65, zone: "legs", label: "Right Thigh", pin: 13, baseNoise: 26 },
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// Calf area (mock data)
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{ id: "calf-1", x: 40, y: 75, zone: "legs", label: "Left Calf", baseNoise: 15 },
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{ id: "calf-2", x: 60, y: 75, zone: "legs", label: "Right Calf", baseNoise: 18 },
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// Feet (mock data)
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{ id: "feet-1", x: 45, y: 85, zone: "feet", label: "Left Foot", baseNoise: 10 },
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{ id: "feet-2", x: 55, y: 85, zone: "feet", label: "Right Foot", baseNoise: 12 },
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];
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// Create pin mapping from sensor config
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const PIN_SENSOR_MAP: Record<number, typeof SENSOR_CONFIG[0]> = {};
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SENSOR_CONFIG.forEach(sensor => {
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if (sensor.pin) {
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PIN_SENSOR_MAP[sensor.pin] = sensor;
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}
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});
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let bedHardware: BedHardware | null = null;
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const sensorData: Record<string, {
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id: string;
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x: number;
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y: number;
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label: string;
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zone: string;
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pressure: number;
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pin?: number;
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digitalState?: number;
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timestamp: string;
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source: 'hardware' | 'mock';
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data: Array<{ time: string; timestamp: number; pressure: number }>;
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status: string;
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}> = {};
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let isHardwareConnected = false;
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// Initialize all sensor data
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function initializeSensorData() {
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SENSOR_CONFIG.forEach(sensor => {
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if (!sensorData[sensor.id]) {
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sensorData[sensor.id] = {
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id: sensor.id,
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x: sensor.x,
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y: sensor.y,
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label: sensor.label,
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zone: sensor.zone,
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pressure: 30 + Math.random() * 20, // Start with baseline pressure
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pin: sensor.pin,
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timestamp: new Date().toISOString(),
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source: sensor.pin ? 'hardware' : 'mock',
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data: generateTimeSeriesData(),
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status: 'normal'
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};
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}
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});
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}
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// Generate time series data for a sensor
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function generateTimeSeriesData(hours = 1) {
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const data = [];
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const now = new Date();
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for (let i = hours * 60; i >= 0; i -= 5) {
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const time = new Date(now.getTime() - i * 60 * 1000);
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data.push({
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time: time.toLocaleTimeString("en-US", { hour12: false }),
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timestamp: time.getTime(),
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pressure: Math.random() * 100 + Math.sin(i / 60) * 20 + 40,
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});
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}
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return data;
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}
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// Initialize hardware connection
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async function initializeHardware() {
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if (bedHardware && isHardwareConnected) return;
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try {
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// Try to find available serial ports
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const availablePorts = await BedHardware.listPorts();
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const portPath = availablePorts.find(port =>
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port.includes('ttyUSB') || port.includes('ttyACM') || port.includes('cu.usbmodem')
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) || '/dev/ttyUSB0'; // Default fallback
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bedHardware = new BedHardware(portPath, 9600);
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bedHardware.on('connected', () => {
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console.log('BedHardware connected');
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isHardwareConnected = true;
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});
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bedHardware.on('disconnected', () => {
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console.log('BedHardware disconnected');
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isHardwareConnected = false;
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});
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bedHardware.on('pinChanged', (change: PinChange) => {
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updateSensorFromPin(change.pin, change.currentState);
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});
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bedHardware.on('pinInitialized', (pinState: PinState) => {
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updateSensorFromPin(pinState.pin, pinState.state);
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});
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bedHardware.on('error', (error) => {
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console.error('BedHardware error:', error);
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isHardwareConnected = false;
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});
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await bedHardware.connect();
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} catch (error) {
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console.warn('Failed to connect to hardware, using mock data:', error);
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isHardwareConnected = false;
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}
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}
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// Convert digital pin state to analog pressure value with noise
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function digitalToPressure(pinState: number, baseNoise: number): number {
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// Base pressure from digital state
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const basePressure = pinState === 1 ? 60 : 20; // High when pin is HIGH, low when LOW
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// Add realistic noise and variation
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const timeNoise = Math.sin(Date.now() / 10000) * 10; // Slow oscillation
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const randomNoise = (Math.random() - 0.5) * baseNoise;
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const sensorDrift = (Math.random() - 0.5) * 5; // Small drift
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const pressure = basePressure + timeNoise + randomNoise + sensorDrift;
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// Clamp between 0 and 100
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return Math.max(0, Math.min(100, pressure));
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}
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// Update sensor data from pin change
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function updateSensorFromPin(pin: number, state: number) {
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const mapping = PIN_SENSOR_MAP[pin];
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if (!mapping) return;
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const pressure = digitalToPressure(state, mapping.baseNoise);
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if (sensorData[mapping.id]) {
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// Update existing sensor data
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const currentData = sensorData[mapping.id];
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sensorData[mapping.id] = {
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...currentData,
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pressure,
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digitalState: state,
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timestamp: new Date().toISOString(),
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source: 'hardware',
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data: [
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...currentData.data.slice(-287), // Keep last ~24 hours (288 points at 5min intervals)
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{
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time: new Date().toLocaleTimeString("en-US", { hour12: false }),
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timestamp: Date.now(),
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pressure: pressure,
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}
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],
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status: pressure > 80 ? 'critical' : pressure > 60 ? 'warning' : 'normal'
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};
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}
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}
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// Update mock sensor data with variation
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function updateMockSensorData() {
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SENSOR_CONFIG.forEach(sensor => {
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if (!sensor.pin && sensorData[sensor.id]) {
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// This is a mock sensor, update with variation
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const currentSensor = sensorData[sensor.id];
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const variation = (Math.random() - 0.5) * 10;
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const newPressure = Math.max(0, Math.min(100, currentSensor.pressure + variation));
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sensorData[sensor.id] = {
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...currentSensor,
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pressure: newPressure,
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timestamp: new Date().toISOString(),
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data: [
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...currentSensor.data.slice(-287), // Keep last ~24 hours
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{
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time: new Date().toLocaleTimeString("en-US", { hour12: false }),
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timestamp: Date.now(),
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pressure: newPressure,
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}
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],
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status: newPressure > 80 ? 'critical' : newPressure > 60 ? 'warning' : 'normal'
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};
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}
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});
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}
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export async function GET() {
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try {
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// Initialize sensor data if not already done
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if (Object.keys(sensorData).length === 0) {
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initializeSensorData();
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}
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// Initialize hardware if not already done
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if (!bedHardware) {
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await initializeHardware();
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}
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// Update mock sensor data
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updateMockSensorData();
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// If hardware is connected, get current pin states
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if (isHardwareConnected && bedHardware) {
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const pinStates = bedHardware.getAllPinStates();
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pinStates.forEach(pinState => {
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updateSensorFromPin(pinState.pin, pinState.state);
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});
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}
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// Return all sensor data
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return NextResponse.json({
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success: true,
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connected: isHardwareConnected,
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sensors: Object.values(sensorData),
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timestamp: new Date().toISOString()
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});
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} catch (error) {
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console.error('Sensor API error:', error);
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return NextResponse.json({
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success: false,
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error: 'Failed to get sensor data',
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connected: false,
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sensors: [],
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timestamp: new Date().toISOString()
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}, { status: 500 });
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}
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}
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export async function POST(request: NextRequest) {
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try {
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const body = await request.json();
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if (body.action === 'connect') {
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await initializeHardware();
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return NextResponse.json({
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success: true,
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connected: isHardwareConnected,
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message: isHardwareConnected ? 'Hardware connected' : 'Using mock data'
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});
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}
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if (body.action === 'disconnect') {
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if (bedHardware) {
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await bedHardware.disconnect();
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bedHardware = null;
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isHardwareConnected = false;
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}
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return NextResponse.json({
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success: true,
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connected: false,
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message: 'Hardware disconnected'
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});
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}
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return NextResponse.json({
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success: false,
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error: 'Invalid action'
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}, { status: 400 });
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} catch (error) {
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console.error('Sensor API POST error:', error);
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return NextResponse.json({
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success: false,
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error: 'Failed to process request'
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}, { status: 500 });
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}
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}
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