Add manufacturer data filtering (#23)

* Add manufacturer data filtering

* Implement manufacturer data filter in windows

* Fix manufacturerData filtering on windows

* Fix linux

* Clean comments

---------

Co-authored-by: Foti Dim <fdimanidis@gmail.com>

android/src/main/kotlin/com/navideck/universal_ble/UniversalBle.g.kt

@@ -127,21 +127,53 @@ data class UniversalBleCharacteristic (
   }
 }
 
-/** Generated class from Pigeon that represents data sent in messages. */
+/**
+ * Scan Filters
+ *
+ * Generated class from Pigeon that represents data sent in messages.
+ */
 data class UniversalScanFilter (
-  val withServices: List<String?>
+  val withServices: List<String?>,
+  val withManufacturerData: List<UniversalManufacturerDataFilter?>
 
 ) {
   companion object {
     @Suppress("UNCHECKED_CAST")
     fun fromList(list: List<Any?>): UniversalScanFilter {
       val withServices = list[0] as List<String?>
-      return UniversalScanFilter(withServices)
+      val withManufacturerData = list[1] as List<UniversalManufacturerDataFilter?>
+      return UniversalScanFilter(withServices, withManufacturerData)
     }
   }
   fun toList(): List<Any?> {
     return listOf<Any?>(
       withServices,
+      withManufacturerData,
+    )
+  }
+}
+
+/** Generated class from Pigeon that represents data sent in messages. */
+data class UniversalManufacturerDataFilter (
+  val companyIdentifier: Long? = null,
+  val data: ByteArray? = null,
+  val mask: ByteArray? = null
+
+) {
+  companion object {
+    @Suppress("UNCHECKED_CAST")
+    fun fromList(list: List<Any?>): UniversalManufacturerDataFilter {
+      val companyIdentifier = list[0].let { if (it is Int) it.toLong() else it as Long? }
+      val data = list[1] as ByteArray?
+      val mask = list[2] as ByteArray?
+      return UniversalManufacturerDataFilter(companyIdentifier, data, mask)
+    }
+  }
+  fun toList(): List<Any?> {
+    return listOf<Any?>(
+      companyIdentifier,
+      data,
+      mask,
     )
   }
 }
@@ -166,6 +198,11 @@ private object UniversalBlePlatformChannelCodec : StandardMessageCodec() {
         }
       }
       131.toByte() -> {
+        return (readValue(buffer) as? List<Any?>)?.let {
+          UniversalManufacturerDataFilter.fromList(it)
+        }
+      }
+      132.toByte() -> {
         return (readValue(buffer) as? List<Any?>)?.let {
           UniversalScanFilter.fromList(it)
         }
@@ -187,10 +224,14 @@ private object UniversalBlePlatformChannelCodec : StandardMessageCodec() {
         stream.write(130)
         writeValue(stream, value.toList())
       }
-      is UniversalScanFilter -> {
+      is UniversalManufacturerDataFilter -> {
         stream.write(131)
         writeValue(stream, value.toList())
       }
+      is UniversalScanFilter -> {
+        stream.write(132)
+        writeValue(stream, value.toList())
+      }
       else -> super.writeValue(stream, value)
     }
   }

android/src/main/kotlin/com/navideck/universal_ble/UniversalBleHelper.kt

@@ -144,7 +144,7 @@ fun Int.parseGattErrorCode(): String? {
 }
 
 fun UniversalScanFilter.toScanFilters(): List<ScanFilter> {
-    var scanFilters: List<ScanFilter> = emptyList()
+    var scanFilters: ArrayList<ScanFilter> = arrayListOf()
 
     // Add withServices Filter
     for (service in this.withServices) {
@@ -152,7 +152,7 @@ fun UniversalScanFilter.toScanFilters(): List<ScanFilter> {
             val serviceUUID = service?.validFullUUID()
             serviceUUID?.let {
                 val parcelUUId = ParcelUuid.fromString(it)
-                scanFilters = scanFilters.plus(
+                scanFilters.add(
                     ScanFilter.Builder().setServiceUuid(parcelUUId).build()
                 )
                 Log.e(TAG, "scanFilters: $parcelUUId")
@@ -167,7 +167,37 @@ fun UniversalScanFilter.toScanFilters(): List<ScanFilter> {
         }
     }
 
-    return scanFilters
+    // Add ManufacturerData Filter
+    for (manufacturerData in this.withManufacturerData) {
+        try {
+            manufacturerData?.companyIdentifier?.let {
+                val data: ByteArray = manufacturerData.data ?: ByteArray(0)
+                val mask: ByteArray? = manufacturerData.mask
+                if (mask == null) {
+                    scanFilters.add(
+                        ScanFilter.Builder().setManufacturerData(
+                            it.toInt(), data
+                        ).build()
+                    )
+                } else {
+                    scanFilters.add(
+                        ScanFilter.Builder().setManufacturerData(
+                            it.toInt(), data, mask
+                        ).build()
+                    )
+                }
+            }
+        } catch (e: Exception) {
+            Log.e(TAG, e.toString())
+            throw FlutterError(
+                "illegalIllegalArgument",
+                "Invalid manufacturerData: ${manufacturerData?.companyIdentifier} ${manufacturerData?.data} ${manufacturerData?.mask}",
+                e.toString()
+            )
+        }
+    }
+
+    return scanFilters.toList()
 }
 
 val ScanResult.manufacturerDataHead: ByteArray?