refactor: migrate to Tencent Cloud backend

miniprogram/services/command-sync.js

@@ -0,0 +1,68 @@
+var ble = require('./ble')
+var http = require('../utils/request')
+
+var syncing = false
+
+function commandPayload(command) {
+  return command.payload || {}
+}
+
+function execute(command) {
+  var payload = commandPayload(command)
+  switch (Number(command.opcode)) {
+    case ble.CMD.SET_PARAMS:
+      return ble.setParams({
+        region_mask: payload.region_mask,
+        wavelength: payload.wavelength,
+        brightness: payload.brightness,
+        duration_ms: payload.duration_ms,
+        mode: payload.mode
+      })
+    case ble.CMD.START:
+      return ble.startTreatment(payload.region_mask)
+    case ble.CMD.STOP:
+      return ble.stopTreatment()
+    case ble.CMD.QUERY_STATUS:
+      return ble.queryStatus()
+    default:
+      return Promise.reject({ error_code: 0xFE, error_msg: 'unsupported opcode' })
+  }
+}
+
+function report(command, success, result) {
+  return http.post('/api/v1/device/command/result', {
+    command_id: command.seq || command.command_id,
+    seq: command.seq || command.command_id,
+    success: success,
+    opcode: command.opcode,
+    result: result || null
+  }).catch(function () {})
+}
+
+function runOne(command) {
+  return execute(command).then(function (result) {
+    return report(command, true, result)
+  }).catch(function (err) {
+    return report(command, false, err)
+  })
+}
+
+function sync(deviceId) {
+  if (syncing || !deviceId || !ble.isConnected()) return Promise.resolve()
+  syncing = true
+  return http.get('/api/v1/device/command/pending', { device_id: deviceId }).then(function (data) {
+    var chain = Promise.resolve()
+    var commands = data.commands || []
+    commands.forEach(function (command) {
+      chain = chain.then(function () { return runOne(command) })
+    })
+    return chain
+  }).catch(function () {}).then(function () {
+    syncing = false
+  })
+}
+
+module.exports = {
+  sync: sync,
+  execute: execute
+}