feat: add user deactivation and vendor BLE protocol

miniprogram/services/ble/protocol.js

@@ -1,5 +1,7 @@
 // BLE protocol: frame encoding/decoding, checksum, constants
 
+var PROTOCOL_MODE = 'vendor_33'
+
 var SERVICE = {
   DEVICE_INFO: 'FFE0',
   DATA_COMM: 'FFE1',
@@ -8,8 +10,8 @@ var SERVICE = {
 
 var CHAR = {
   DEVICE_INFO: 'FFE3',
-  COMMAND: 'FFE4',
-  STATUS: 'FFE5',
+  COMMAND: 'FFE1',
+  STATUS: 'FFE4',
   BOND_INFO: 'FFE6',
   OTA_CONTROL: 'FFE7',
   OTA_DATA: 'FFE8',
@@ -112,6 +114,18 @@ function xorChecksum(bytes) {
   return result
 }
 
+function clampByte(value) {
+  var n = parseInt(value, 10)
+  if (isNaN(n)) n = 0
+  return Math.max(0, Math.min(255, n))
+}
+
+function clampUInt16(value) {
+  var n = parseInt(value, 10)
+  if (isNaN(n)) n = 0
+  return Math.max(0, Math.min(65535, n))
+}
+
 function uint32ToBytes(value) {
   return [
     (value >> 24) & 0xFF,
@@ -141,6 +155,54 @@ function bytesToHex(bytes) {
   return hex.toUpperCase()
 }
 
+// --- vendor 33-byte command protocol ---
+
+function buildVendorCommand33(options) {
+  options = options || {}
+  var regionMask = options.region_mask || REGION.FULL_FACE
+  var wavelength = options.wavelength || WAVELENGTH.R
+  var brightness = clampByte(options.brightness === undefined ? 200 : options.brightness)
+  var gain = clampUInt16(options.current_gain === undefined ? brightness : options.current_gain)
+  var durationMs = options.duration_ms || 600000
+  var holdSeconds = clampUInt16(options.hold_time === undefined ? Math.round(durationMs / 1000) : options.hold_time)
+  var regions = [
+    REGION.LEFT_CHEEK,
+    REGION.RIGHT_CHEEK,
+    REGION.FOREHEAD,
+    REGION.CHIN,
+    REGION.NOSE
+  ]
+  var bytes = []
+
+  for (var i = 0; i < regions.length; i++) {
+    var enabled = (regionMask & regions[i]) !== 0
+    var red = 0
+    var infrared = 0
+    var uv = 0
+    var warmYellow = 0
+    if (enabled) {
+      if (wavelength === WAVELENGTH.R) red = brightness
+      if (wavelength === WAVELENGTH.IR) infrared = brightness
+      if (wavelength === WAVELENGTH.UV) uv = brightness
+      if (wavelength === WAVELENGTH.Y) warmYellow = brightness
+    }
+    bytes.push(red, infrared, uv, warmYellow, (gain >> 8) & 0xFF, gain & 0xFF)
+  }
+
+  bytes.push((holdSeconds >> 8) & 0xFF, holdSeconds & 0xFF)
+  bytes.push(xorChecksum(bytes))
+  return bytes
+}
+
+function parseVendorStatus(buffer) {
+  var bytes = bufferToBytes(buffer)
+  return {
+    mode_state: bytes.length > 0 ? bytes[0] : MODE_STATE.IDLE,
+    raw_bytes: bytes,
+    raw_hex: bytesToHex(bytes)
+  }
+}
+
 // --- frame encoding/decoding ---
 
 function buildFrame(type, payload) {
@@ -240,6 +302,7 @@ function getModeStateName(code) {
 }
 
 module.exports = {
+  PROTOCOL_MODE: PROTOCOL_MODE,
   SERVICE: SERVICE,
   CHAR: CHAR,
   CMD: CMD,
@@ -258,9 +321,11 @@ module.exports = {
   bytesToUint32: bytesToUint32,
   hexToBytes: hexToBytes,
   bytesToHex: bytesToHex,
+  buildVendorCommand33: buildVendorCommand33,
 
   buildFrame: buildFrame,
   parseFrame: parseFrame,
+  parseVendorStatus: parseVendorStatus,
   parseStatusReport: parseStatusReport,
   parseAck: parseAck,
   parseTreatmentComplete: parseTreatmentComplete,