[WIP] feature: add 127507 charger status

pgns/127507.js

@@ -0,0 +1,43 @@
+
+function prefix(n2k) {
+  return `electrical.charger.${n2k.fields['Instance']}.battery.${n2k.fields['Battery Instance']}`
+}
+
+module.exports = [
+  {
+    node: n2k => prefix(n2k) + '.operatingState',
+    value: n2k => n2k.fields['Operating State'].toLowerCase(),
+    filter: n2k => typeof n2k.fields['Operating State'] === 'string'
+  },
+  {
+    node: n2k => prefix(n2k) + '.chargeMode',
+    value: n2k => n2k.fields['Charge Mode'].toLowerCase(),
+    filter: n2k => typeof n2k.fields['Charge Mode'] === 'string'
+  },
+  {
+    node: n2k => prefix(n2k) + '.chargerEnabled',
+    value: n2k => n2k.fields['Charger Enabled'].toLowerCase(),
+    filter: n2k => typeof n2k.fields['Charger Enabled'] === 'string'
+  },
+  {
+    node: n2k => prefix(n2k) + '.equalizationPending',
+    value: n2k => n2k.fields['Equalization Pending'].toLowerCase(),
+    filter: n2k => typeof n2k.fields['Equalization Pending'] === 'string'
+  },
+  {
+    allowNull: true,
+    value: function (n2k) {
+      var val = n2k.fields['Equalization Time Remaining']
+      var res
+      if (typeof val !== 'undefined') {
+        res = val * 60 // convert to seconds
+      } else {
+        res = null
+      }
+      return res
+    },
+    node: function (n2k) {
+      return prefix(n2k) + '.equalizationTimeRemaining'
+    }
+  }
+]       

pgns/index.js

@@ -11,6 +11,7 @@ module.exports = {
   127489: require('./127489.js'),
   127505: require('./127505.js'),
   127506: require('./127506.js'),
+  127507: require('./127507.js'),
   127508: require('./127508.js'),
   128259: require('./128259.js'),
   128267: require('./128267.js'),

test/127507_charger_status.js

@@ -0,0 +1,43 @@
+var chai = require('chai')
+chai.Should()
+const { expect } = chai
+chai.use(require('chai-things'))
+chai.use(require('@signalk/signalk-schema').chaiModule)
+
+describe('127507 charger status', function () {
+  it('complete sentence converts', function () {
+    const pgn =
+      '{"canId":435295105,"prio":6,"src":129,"dst":255,"pgn":127507,"timestamp":"2021-07-30T16:48:59.722Z","input":[],"fields":{"Instance":113,"Battery Instance":0,"Operating State":"Disabled","Charge Mode":"Standalone mode","Charger Enabled":"Off"},"description":"Charger Status"}'
+
+    const delta = require('./testMapper').toDelta(JSON.parse(pgn))
+
+    findPathValue(
+      delta,
+      'electrical.charger.113.battery.0.operatingState'
+    ).value.should.equal('disabled')
+    findPathValue(
+      delta,
+      'electrical.charger.113.battery.0.chargeMode'
+    ).value.should.equal('standalone mode')
+    findPathValue(
+      delta,
+      'electrical.charger.113.battery.0.chargerEnabled'
+    ).value.should.equal('off')
+    expect(findPathValue(
+      delta,
+      'electrical.charger.113.battery.0.equalizationTimeRemaining'
+    ).value).to.be.null
+  })
+})
+
+function findPathValue(delta, path) {
+  const found = delta.updates[0].values.find(
+    (pathValue) => pathValue.path === path
+  )
+  if (!found) {
+    throw new Error(
+      `No pathValue with path ${path} in ${JSON.stringify(delta, null, 2)}`
+    )
+  }
+  return found
+}