add mapper. add v2 handler. add tag description short and full versions. delete topic[1-5].

app/src/handlers/edge5-modbus-v2.ts

@@ -0,0 +1,71 @@
+import { createMetricMapper, type MappedMetric } from '../mapping.js'
+import type { TopicHandler } from '../types.js'
+
+export const TOPIC = 'data/edge5/modbus/v2'
+
+const mapper = createMetricMapper({
+  filePath:
+    process.env.EDGE5_MODBUS_V2_MAPPING_FILE ??
+    new URL('../mappings/edge5-modbus.json', import.meta.url),
+})
+const REGISTER_COUNT = mapper.tagCount
+const postUrl =
+  process.env.CLOUD_INGEST_URL ?? 'https://demo.backend.drill.greact.ru/ingest'
+
+function parseValues(payload: Buffer): number[] {
+  let value: unknown
+
+  try {
+    value = JSON.parse(payload.toString('utf8')) as unknown
+  } catch {
+    throw new Error(`Expected JSON number[${REGISTER_COUNT}]`)
+  }
+
+  if (
+    Array.isArray(value) &&
+    value.length === REGISTER_COUNT &&
+    value.every((item) => typeof item === 'number' && Number.isFinite(item))
+  ) {
+    return value
+  }
+
+  throw new Error(`Expected JSON number[${REGISTER_COUNT}]`)
+}
+
+async function postMetrics(metrics: MappedMetric[]): Promise<void> {
+  const response = await fetch(postUrl, {
+    method: 'POST',
+    headers: {
+      'content-type': 'application/json',
+    },
+    body: JSON.stringify(metrics),
+  })
+
+  if (!response.ok) {
+    const text = await response.text()
+    console.error('edge5.modbus.v2.post_error', {
+      status: response.status,
+      statusText: response.statusText,
+      body: text.slice(0, 500),
+    })
+    return
+  }
+
+  console.log('edge5.modbus.v2.posted', { count: metrics.length })
+}
+
+export const handleEdge5ModbusV2: TopicHandler = async (topic, payload) => {
+  console.log('edge5.modbus.v2.received', { topic, bytes: payload.length })
+
+  let values: number[]
+
+  try {
+    values = parseValues(payload)
+  } catch (err) {
+    console.warn('edge5.modbus.v2.invalid_payload', { topic, err })
+    return
+  }
+
+  const metrics = mapper.mapValues(values, Date.now())
+  await postMetrics(metrics)
+}