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BleNative.m
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BleNative.m
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#import "BleNative.h"
#import "React/RCTLog.h"
#import "ByteUtils.h"
@implementation BleNative
{
bool hasListeners;
}
-(void)startObserving{
hasListeners = YES;
}
-(void)stopObserving{
hasListeners = NO;
}
-(NSDictionary *)constantsToExport{
return @{@"ModuleName": @"BleNative", @"ModuleDescription":@"Native Module to wrap native bluetooth rfid scanner functionality", @"MaxReaders":@20, @"ScanCodes":@{@0:@"success", @-101:@"INVALID_PARAMETER", @-201: @"DEVICE_NOT_OPENED", @-202: @"DEVICE_BUSY", @-203:@"DEVICE_NOASK", @-204:@"DEVICE_FAILED", @-205:@"DEVICE_BATTERY_LOW", @-301:@"COMMUNICATE_TIMEOUT", @-302:@"COMMUNICATE_ERROR", @-303:@"COMMUNICATE_FAILED"}};
}
+(BOOL) requiresMainQueueSetup{
return YES;
}
-(NSArray<NSString*>*)supportedEvents{
return @[@"Event", @"StartBleSearch", @"FinishBleSearch", @"StopBleSearch", @"BleDeviceDiscovered", @"BleServiceInit", @"ConnectionSuccess", @"ConnectionFail", @"ConnectionDisconnect", @"StartScanning", @"StopScanning", @"ErrorScanning", @"TagScanned"];
}
-(void) eventReceived: (NSString*) message{
NSString* eventName = [[NSString alloc] initWithFormat: @"BleEvent: %@", message];
[self sendEventWithName:@"Event" body:@{@"name": eventName}];
}
- (void)didUpdateState:(NSInteger)state {
if (state == 5) {
[self scanForBleReader];
}
}
- (void)didConnect {
if(hasListeners){
[self sendEventWithName:@"ConnectionSuccess" body:@{@"msg": @"Successfully Connected!"}];
}
}
- (void)didDisconnect {
if(hasListeners){
[self sendEventWithName:@"ConnectionDisconnect" body:@{@"msg": @"Device Disconnected"}];
}
}
- (void)didFailConnect {
if(hasListeners){
[self sendEventWithName:@"ConnectionFail" body:@{@"msg": @"Failed to Connected!"}];
}
}
- (void)didDiscoverBleReader:(BU01_BleReader *)reader {
RCTLogInfo(@"didDiscoverBleReader");
[self.readers addObject:reader];
[self sendEventWithName:@"BleDeviceDiscovered" body: @{@"readerName": reader.name?reader.name:@"null", @"rssi": reader.RSSI?reader.RSSI:@"null"}];
}
- (void)scanForBleReader {
[self.readers removeAllObjects];
[self.service scanForBleReader];
double delayInSeconds = 4.0;
dispatch_time_t popTime = dispatch_time(DISPATCH_TIME_NOW, delayInSeconds * NSEC_PER_SEC);
dispatch_after(popTime, dispatch_get_main_queue(), ^(void){
[self.service stopScan];
NSArray* readers = [[NSArray alloc] initWithArray: self.readers];
if(self.searchFinishCallback){
// self.searchFinishCallback(@[[NSNull null], readers]);
}
[self sendEventWithName:@"FinishBleSearch" body:@{@"readers": readers}];
});
}
- (void)addTag:(BU01_Tag *)tag {
NSString *epc = [ByteUtils toHexString:tag.epc spaceBytes:0];
int i=0;
for (; i<self.tagRecords.count; i++) {
BU01_Tag *tagRecord = self.tagRecords[i][@"tag"];
NSString* current_ecp =[ByteUtils toHexString:tagRecord.epc spaceBytes:0];
if ([current_ecp isEqualToString:epc]) {
NSNumber* count = [NSNumber numberWithInt: (((NSNumber*)self.tagRecords[i][@"count"]).intValue + 1)];
[self.tagRecords setObject:@{@"tag": tagRecord, @"count": count} atIndexedSubscript:i];
RCTLogInfo(@"tag epc: %@, rssi: %f , count: %@", [ByteUtils toHexString:((BU01_Tag*)self.tagRecords[i][@"tag"]).epc spaceBytes:0], ((BU01_Tag*)self.tagRecords[i][@"tag"]).rssi, (NSNumber*)self.tagRecords[i][@"count"]);
[self sendEventWithName:@"TagScanned" body:@{@"ScannedTag": @{@"epc": current_ecp, @"rssi": [NSNumber numberWithDouble: tagRecord.rssi], @"count": count}}];
break;
}
}
if (i == self.tagRecords.count) {
[self.tagRecords addObject:@{@"tag": tag, @"count": @1}];
[self sendEventWithName:@"TagScanned" body:@{@"ScannedTag": @{@"epc": epc, @"rssi": [NSNumber numberWithDouble: tag.rssi], @"count": @1}}];
RCTLogInfo(@"Adding new tag!!");
}
}
- (void)inventory {
[self.reader inventory:^(int ret, NSArray *tags) {
if (ret == 0) {
for (BU01_Tag *tag in tags) {
RCTLogInfo(@"tag epc: %@, rssi: %f", [ByteUtils toHexString:tag.epc spaceBytes:0], tag.rssi);
[self addTag: tag];
}
if (self.inventoring) {
[self inventory];
} else {
[self sendEventWithName:@"StopScanning" body:@{@"msg": @"scanning stopped!"}];
}
} else {
if (ret != 0) {
NSLog(@"inventory failed: %d", ret);
}
[self sendEventWithName:@"ErrorScanning" body:@{@"errorCode": [NSNumber numberWithInt: ret]}];
}
}];
}
RCT_EXPORT_MODULE()
RCT_EXPORT_METHOD(BleInit: (RCTResponseSenderBlock) callback)
{
// TODO: Implement some actually useful functionality
self.service = [BU01_BleService new];
self.service.delegate = self;
self.readers = [NSMutableArray arrayWithCapacity: 20];
self.tagRecords = [NSMutableArray arrayWithCapacity: 20];
callback(@[[NSNull null], @"Ble Service Initialized"]);
if(hasListeners){
[self sendEventWithName:@"BleServiceInit" body:@{@"msg":@"Ble Service Initialized"}];
}
}
RCT_EXPORT_METHOD(addEvent: (NSString*)name location: (NSString*) location callback: (RCTResponseSenderBlock) callback)
{
// TODO: Implement some actually useful functionality
RCTLogInfo(@"Pretending to create an event %@ at %@", name, location);
callback(@[[NSNull null], name, location]);
if(hasListeners){
[self eventReceived: location];
}
}
RCT_EXPORT_METHOD(searchForBleReader:(RCTResponseSenderBlock) callback)
{
[self scanForBleReader];
self.searchFinishCallback = callback;
if(hasListeners){
[self sendEventWithName:@"StartBleSearch" body:@{@"msg": @"Search Started!"}];
}
}
RCT_EXPORT_METHOD(connectToBleReader: (NSDictionary*) reader index: (nonnull NSNumber*) index callback: (RCTResponseSenderBlock) callback){
self.reader = self.readers[index.intValue];
self.reader.delegate = self;
[self.reader connect];
RCTLogInfo(@"reader *: %@, reader Name: %@, reader RSSI: %@, Array Index: %@", self.reader, self.reader.name, self.reader.RSSI, index);
callback(@[[NSNull null], @"connect"]);
}
RCT_EXPORT_METHOD(disconnectFromBleReader: (RCTResponseSenderBlock) callback){
if(self.inventoring){
self.inventoring = false;
}
[self.reader disconnect];
callback(@[[NSNull null], @"disconnected"]);
}
RCT_EXPORT_METHOD(StartScanning: (RCTResponseSenderBlock) callback){
self.inventoring = true;
[self inventory];
[self sendEventWithName:@"StartScanning" body:@{@"msg": @"Started Scanning!"}];
callback(@[[NSNull null]]);
}
RCT_EXPORT_METHOD(StopScanning: (RCTResponseSenderBlock) callback){
self.inventoring = false;
callback(@[[NSNull null]]);
}
@end