onecable_ios_user/OneCable/Classes/Handler/BLEServiceHandler.m

//
//  BLEServiceHandler.m
//  OneCable
//
//  Created by KaRam Kim on 2017. 5. 18..
//  Copyright © 2017년 ntels. All rights reserved.
//

#import "BLEServiceHandler.h"
#import <CoreBluetooth/Corebluetooth.h>
#import "Definitions.h"
#import "JDJSONModel.h"
#import "JDObject.h"

@interface BLEServiceHandler()<CBCentralManagerDelegate, CBPeripheralDelegate>
{
    CBCentralManager *_manager;
    NSMutableArray *_devices;
    BOOL _scanning;
    NSTimer *_scanTimer;
    

    //service characteristic
    CBService *lastService;

}

@end

@implementation BLEServiceHandler

+ (id)sharedManager
{
    static BLEServiceHandler *sharedBLEServiceHandler = nil;
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        sharedBLEServiceHandler = [[self alloc] init];
    });
    return sharedBLEServiceHandler;
}

- (id) init
{
    self = [super init];
    
    if (self) {
        _manager = [[CBCentralManager alloc] initWithDelegate:self queue:dispatch_get_main_queue()];
//        *peripheralManager = [[CBPeripheralManager alloc]initWithDelegate:nil queue:nil options:@{CBPeripheralManagerOptionShowPowerAlertKey:@NO}]
        _devices = [NSMutableArray array];
//        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(startScan) name:kBLEConnect object:nil];
//        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(startScan) name:kBLEDisConnect object:nil];

    }
    
    return self;
}

- (void)connect:(BTLEDeivceModel *)info
{
    [_manager connectPeripheral:info.peripheralRef options:nil];
//    if (info.peripheralRef.state != CBPeripheralStateDisconnected) {
//        [_manager cancelPeripheralConnection:info.peripheralRef];
//    } else {
//        [_manager connectPeripheral:info.peripheralRef options:nil];
//    }
}

- (void)disConnect
{
    _conDevice = nil;
}

-(void) openBluetoothSettings{
    
    [[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"App-Prefs:root=Bluetooth"]];
}

- (BOOL) checkBLEStatus {
    
    if (_manager.state == CBManagerStatePoweredOff) {
        
        NSLog(@"_manager.state != CBCentralManagerStatePoweredOn") ;
        
        [[JDFacade facade] confirmTitle:@"Notice"
                                message:@"블루투스가 비활성화 되어 있습니다. 활성화 해주세요."
                             btnOKLabel:@"OK"
                         btnCancelLabel:@"Cancel"
                             completion:^(CustomAlertView *alertView, NSInteger buttonIndex) {
                                 
                                 if (buttonIndex == 1) {
                                     
                                     [self openBluetoothSettings];
                                 }
                             }];
        
        return NO;
    }
    
    return YES;
}


- (void) startScan
{
    if (![self checkBLEStatus])
        return;

    _devices = [NSMutableArray array];
    
    if (_scanTimer) [_scanTimer invalidate];
    
    _scanning = YES;
    
    [_manager stopScan];
    
    NSLog(@"START SCAN");
    
    [_manager scanForPeripheralsWithServices:nil options:nil];
    
    _scanTimer = [NSTimer scheduledTimerWithTimeInterval:10 target:self selector:@selector(stopScan:) userInfo:@"Y" repeats:NO];
}


- (void)stopScan:(NSString*)timeout
{
    NSLog(@"STOP SCAN");
    
    [_manager stopScan] ;
    _scanning = NO ;
    
    if( _delegate && [_delegate respondsToSelector:@selector(BLEEndScan:)] ) {
        [_delegate BLEEndScan:_devices] ;
    }
}

-(NSMutableArray *)getDeviceList
{
    return _devices;
}

-(CBCharacteristic *)getChrInfo:(NSString *)name
{
    CBCharacteristic *result = nil;
    
    for (CBService *serviceInfo in [_conDevice getServiceList]) {
        
        for (CBCharacteristic *chrInfo in serviceInfo.characteristics) {

            if ([[self getStrUUID:chrInfo] isEquestToIgnoreCase:[self getServiceUUID:name]]) {
                
                //NSLog(@"\nname : %@, chrInfo : %@", name, chrInfo.UUID);
                
                result = chrInfo;
                break;
            }
        }
    }
    
    return result;
}

-(NSString *)getChrName:(CBCharacteristic *)info
{
    NSString *result = nil;
    for (NSString *key in [[self getGatewayCharDict] allKeysForObject:[[self getStrUUID:info] lowercaseString]]) {
        result = key;
    }
    
    return result;
}

-(NSString *)getStrUUID:(CBCharacteristic *)info
{
    NSString *uuid =[NSString stringWithFormat:@"%@", info.UUID];
    
    return uuid;
}



- (BTLEDeivceModel *)addPeripheral:(CBPeripheral*)peripheral {
    
    BTLEDeivceModel *device = [[BTLEDeivceModel alloc] init];
    device.peripheralRef = peripheral;
    device.manager = _manager;
    
    peripheral.delegate = self;
    
    if (![_devices containsObject:device]) {
        
        [_devices addObject:device];
    }
    
    
//    if( _delegate && [_delegate respondsToSelector:@selector(BLEUpldateDevice:)] ) {
//        [_delegate BLEUpldateDevice:device] ;
//    }
    
    return device;
}



- (NSString*)hexStringValue:(CBCharacteristic *)input {
    if (!input.value) return @"-";

    NSString *raw = [NSString stringWithFormat:@"0x%@", input.value];
    raw = [raw stringByReplacingOccurrencesOfString:@"<" withString:@""];
    raw = [raw stringByReplacingOccurrencesOfString:@">" withString:@""];
    return raw;

}

- (NSString*)asciiStringValue:(CBCharacteristic *)input {
    
    if (!input.value) return @"-";
    
    NSString *ascii = [[NSString alloc] initWithData:input.value encoding:NSASCIIStringEncoding];
    return ascii;
}

-(void)sendData:(CBCharacteristic *)chr str:(NSString *)str
{
    NSData *data = [NSData data];
    
    if ([str isDigit]) {
        int dataToWrite = [str intValue];
        data = [NSData dataWithBytes:&dataToWrite length:1];
    } else {
        data = [str dataUsingEncoding:NSASCIIStringEncoding];
    }

    if (chr.properties & CBCharacteristicPropertyWriteWithoutResponse)
        [chr.service.peripheral writeValue:data forCharacteristic:chr type:CBCharacteristicWriteWithoutResponse];
    else if (chr.properties & CBCharacteristicPropertyWrite)
        [chr.service.peripheral writeValue:data forCharacteristic:chr type:CBCharacteristicWriteWithResponse];
}

#pragma mark - WiFi Settings
//WiFi Setting관련 메뉴
-(void)scanWiFiList
{
    [self sendData:[self getChrInfo:kBLEChrStWiFiScan] str:@"1"];
}

-(NSString *)getWLanList:(BLEWlanListType)type
{
    // TODO : WLanList 가져오기
    NSString *result = @"";
    switch (type) {
        case BLEWlanListType1:
            [self readAndNotifyCharacteristicUUID:kBLEChrRdWiFiList1 isNotify:NO];
            //result = [self asciiStringValue:[self getChrInfo:kBLEChrRdWiFiList1]];
            break;
        case BLEWlanListType2:
            [self readAndNotifyCharacteristicUUID:kBLEChrRdWiFiList2 isNotify:NO];
            //result = [self asciiStringValue:[self getChrInfo:kBLEChrRdWiFiList2]];
            break;
        case BLEWlanListType3:
            [self readAndNotifyCharacteristicUUID:kBLEChrRdWiFiList3 isNotify:NO];
            //result = [self asciiStringValue:[self getChrInfo:kBLEChrRdWiFiList3]];
            break;
            
        default:
            break;
    }
    
    return result;
}

-(NSString *)getValueFromCharacteristic:(NSString*)type
{
    return [self asciiStringValue:[self getChrInfo:type]];;
}

-(void)setWiFiSSID:(NSString *)ssid
{
    [self sendData:[self getChrInfo:kBLEChrStSSIDArg] str:ssid];
}

-(void)setWiFiPwd:(NSString *)pwd
{
    [self sendData:[self getChrInfo:kBLEChrStPWDArg] str:pwd];
}

-(void)enableDHCP
{
    [self sendData:[self getChrInfo:kBLEChrStDHCPArg] str:@"1"];
}

-(void)applyWiFiSettingInfo
{
    [self sendData:[self getChrInfo:kBLEChrStSetApply] str:@"1"];
    // todo : Connection정보가 notify로 들어오면, delegate를 통해서 알리기
}

-(void)readAndNotifyCharacteristicUUID:(NSString *)uuid
                              isNotify:(BOOL)isNotify
{
    
    for (CBService *service in _conDevice.peripheralRef.services) {
        
        for (CBCharacteristic *characteristic in service.characteristics) {
            
            if ([characteristic.UUID.UUIDString isEquestToIgnoreCase:[self getGatewayDicUUIDForKey:uuid]]) {
                
                if (isNotify)
                    [_conDevice.peripheralRef setNotifyValue:YES forCharacteristic:characteristic];
                else
                    [_conDevice.peripheralRef readValueForCharacteristic:characteristic];
                
                break;
            }
        }
    }
}

- (void)readConnectionWiFiInfo {
    
    [self readAndNotifyCharacteristicUUID:kBLEChrRdSSID isNotify:NO];
    [self readAndNotifyCharacteristicUUID:kBLEChrRdBSSID isNotify:NO];
    [self readAndNotifyCharacteristicUUID:kBLEChrRnIpSet isNotify:NO];
    [self readAndNotifyCharacteristicUUID:kBLEChrRnIpAddr isNotify:NO];
}

- (NSString*)getStringValueForCharacteristicWithKey:(NSString*)key {
    
   return [self asciiStringValue:[self getChrInfo:key]];
}

-(NSString *)getServiceName:(NSString *)uuid
{
    NSString *result = nil;
   
    
    for (NSString *key in [[self getGatewayCharDict] allKeysForObject:uuid.lowercaseString]) {
        result = key;
    }
    
    return result;
}

-(NSString *)getServiceUUID:(NSString *)strKey
{
    NSString *result = nil;
    
    
    for (NSString *key in [[self getGatewayCharDict] allKeys]) {
        
        if ([key isEquestToIgnoreCase:strKey]) {
            
            result = [[self getGatewayCharDict] objectForKey:key];
            
            break;
        }
    }
    
    return result;
}

- (NSString*)getGatewayDicUUIDForKey:(NSString*)key{
    
    return [[self getGatewayCharDict] objectForKey:key];
}

-(NSDictionary *)getGatewayCharDict
{
    NSDictionary *db = @{@"WFNPS_UUID":@"6f819d94-dddf-11e6-bf26-cec0c932ce01",
                         @"SCAN_CHR_UUID":@"b364676d-dd76-11e6-bf26-cec0c932ce01",
                         @"WLAN_LIST1_CHR_UUID":@"f333f87c-0787-11e7-93ae-92361f002671",
                         @"WLAN_LIST2_CHR_UUID":@"f333fad4-0787-11e7-93ae-92361f002671",
                         @"WLAN_LIST3_CHR_UUID":@"f333fbec-0787-11e7-93ae-92361f002671",
                         @"SSID_ARG_CHR_UUID":@"508e6c28-0788-11e7-93ae-92361f002671",
                         @"PASSWORD_ARG_CHR_UUID":@"b3646c08-dd76-11e6-bf26-cec0c932ce01",
                         @"CONNECTION_CHR_UUID":@"b3646fbe-dd76-11e6-bf26-cec0c932ce01",
                         @"SSID_CHR_UUID":@"b3647108-dd76-11e6-bf26-cec0c932ce01",
                         @"BSSID_CHR_UUID":@"b3647234-dd76-11e6-bf26-cec0c932ce01",
                         @"WF_IP_SET_ARG_CHR_UUID":@"8e0b49e6-088b-11e7-93ae-92361f002671",
                         @"WF_IP_ADDR_ARG_CHR_UUID":@"8e0b4c2a-088b-11e7-93ae-92361f002671",
                         @"WF_NET_PRE_LEN_ARG_CHR_UUID":@"8e0b4e32-088b-11e7-93ae-92361f002671",
                         @"WF_GATEWAY_ARG_CHR_UUID":@"8e0b4ffe-088b-11e7-93ae-92361f002671",
                         @"WF_DNS_ARG_CHR_UUID":@"8e0b50d0-088b-11e7-93ae-92361f002671",
                         @"APPLY_CHR_UUID":@"8e0b51a2-088b-11e7-93ae-92361f002671",
                         @"WF_IP_SET_CHR_UUID":@"8e0b5314-088b-11e7-93ae-92361f002671",
                         @"WF_IP_ADDR_CHR_UUID":@"8e0b54a4-088b-11e7-93ae-92361f002671",
                         @"WF_NET_PRE_LEN_CHR_UUID":@"8e0b5576-088b-11e7-93ae-92361f002671",
                         @"WF_GATEWAY_CHR_UUID":@"8e0b568e-088b-11e7-93ae-92361f002671",
                         @"WF_DNS_CHR_UUID":@"8e0b5878-088b-11e7-93ae-92361f002671",
                         @"IPNPS_UUID":@"09d38ae8-dbb9-11e6-bf26-cec0c932ce01",
                         @"IP_SET_ARG_CHR_UUID":@"09d38d68-dbb9-11e6-bf26-cec0c932ce01",
                         @"IP_ADDR_ARG_CHR_UUID":@"09d38e62-dbb9-11e6-bf26-cec0c932ce01",
                         @"NET_PRE_LEN_ARG_CHR_UUID":@"09d38f48-dbb9-11e6-bf26-cec0c932ce01",
                         @"GATEWAY_ARG_CHR_UUID":@"09d39024-dbb9-11e6-bf26-cec0c932ce01",
                         @"DNS_ARG_CHR_UUID":@"09d3960a-dbb9-11e6-bf26-cec0c932ce01",
                         @"APPLY_IP_CHR_UUID":@"73207ac8-dd72-11e6-bf26-cec0c932ce01",
                         @"IP_SET_CHR_UUID":@"73208018-dd72-11e6-bf26-cec0c932ce01",
                         @"IP_ADDR_CHR_UUID":@"73208126-dd72-11e6-bf26-cec0c932ce01",
                         @"NET_PRE_LEN_CHR_UUID":@"73208202-dd72-11e6-bf26-cec0c932ce01",
                         @"GATEWAY_CHR_UUID":@"732082de-dd72-11e6-bf26-cec0c932ce01",
                         @"DNS_CHR_UUID":@"732083a6-dd72-11e6-bf26-cec0c932ce01"};
    
    return db;
}


#pragma mark - CBCentralManagerDelegate
- (void)centralManagerDidUpdateState:(CBCentralManager *)central {
    NSLog(@"Central manager changed state: %ld", central.state);
    
    if( _delegate && [_delegate respondsToSelector:@selector(BLEStateChange:)] ) {
        [_delegate BLEStateChange:central.state == CBCentralManagerStatePoweredOn] ;
    }
    
    if (central.state == CBCentralManagerStatePoweredOn) {
        
        [self startScan];
    }
}

- (void)centralManager:(CBCentralManager *)central didRetrievePeripherals:(NSArray *)peripherals {
    NSLog(@"%ld periphirals retrieved", [peripherals count]);
}

- (void)centralManager:(CBCentralManager *)central didRetrieveConnectedPeripherals:(NSArray *)peripherals {
    
    for (CBPeripheral *peripheral in peripherals)
    {
        NSLog(@"1Periphiral discovered: %@, %@", peripheral.name, peripheral.identifier);

        BOOL isExist = NO;
        for (BTLEDeivceModel *device in _devices)
        {
            if ([[device.peripheralRef.identifier UUIDString] isEqualToString:[peripheral.identifier UUIDString]])
            {
                isExist = YES;
            }
        }
        
        
        if (!isExist)
            [self addPeripheral:peripheral];

    }
}

- (void)centralManager:(CBCentralManager *)central didDiscoverPeripheral:(CBPeripheral *)peripheral advertisementData:(NSDictionary *)advertisementData RSSI:(NSNumber *)RSSI {
    
    //NSLog(@"2Periphiral discovered: %@, %@, signal strength: %d", peripheral.name, peripheral.identifier, RSSI.intValue);
    
    for (BTLEDeivceModel *device in _devices) {
        
        if ([[device.peripheralRef.identifier UUIDString] isEqualToString:[peripheral.identifier UUIDString]]) {
            return;
        }
    }
    if (peripheral.name != nil && peripheral.name != (id)[NSNull null]) {
        
        if ([peripheral.name rangeOfString:@"DKC"].location != NSNotFound || [peripheral.name rangeOfString:@"BlueZ"].location != NSNotFound) {
            
            BTLEDeivceModel *device = [self addPeripheral:peripheral];
            
            if (![_devices containsObject:device]) {
                
                [_devices addObject:device];
            }
        }
    }
}

- (void)centralManager:(CBCentralManager *)central didConnectPeripheral:(CBPeripheral *)peripheral {
    
    NSLog(@"Periphiral connected name : %@", peripheral.name);

    _isConnected = YES;
    
    [peripheral discoverServices:nil] ;
    
}

- (void)centralManager:(CBCentralManager *)central didDisconnectPeripheral:(CBPeripheral *)peripheral error:(NSError *)error {
    
    NSLog(@"Periphiral disconnected: %@", peripheral.name);
    
    if( _delegate && [_delegate respondsToSelector:@selector(BLEDisConnected:)] ) {
        [_delegate BLEDisConnected:_conDevice] ;
    }
    
    _isConnected = NO;
    _conDevice = nil;
}

- (void)centralManager:(CBCentralManager *)central didFailToConnectPeripheral:(CBPeripheral *)peripheral error:(NSError *)error {
    
    NSLog(@"Periphiral failed to connect: %@", peripheral.name);
}

#pragma mark - CBPeripheralDelegate
- (void)peripheral:(CBPeripheral *)peripheral didDiscoverServices:(NSError *)error {
    
    NSLog(@"\nServices dicovered for peripheral %@:", peripheral.name);

    
    lastService = [peripheral.services lastObject];

    for (CBService *service in peripheral.services) {

        [peripheral discoverCharacteristics:nil forService:service];
    }
}

- (void)peripheral:(CBPeripheral *)peripheral didDiscoverCharacteristicsForService:(CBService *)service error:(NSError *)error {
    
    NSLog(@"\ncharacteristics dicovered for service : %@", service.UUID);

    if ([lastService.UUID isEqual:service.UUID]) {
        
        _conDevice = [self addPeripheral:peripheral];
        lastService = nil;
        
        if( _delegate && [_delegate respondsToSelector:@selector(BLEConnected:)] ) {
            [_delegate BLEConnected:_conDevice] ;
        }
    }

    for (CBCharacteristic *characteristic in service.characteristics) {
        //NSLog(@"characteristic : %@", characteristic.UUID);

//        [self readValueSetNotifyValueForCharacteristic:characteristic peripheral:peripheral];
//        [peripheral setNotifyValue:YES forCharacteristic:characteristic];
//        [peripheral readValueForCharacteristic:characteristic];
    }
    
}


- (void)peripheral:(CBPeripheral *)peripheral didUpdateValueForCharacteristic:(CBCharacteristic *)characteristic error:(NSError *)error {
    
    NSLog(@"Incoming: [%@], %@",
          [self getChrName:characteristic],
          [self asciiStringValue:characteristic]);
    
    [self updateValueForDelegateWithCharacteristic:characteristic];
}

-(void)peripheral:(CBPeripheral *)peripheral didModifyServices:(NSArray<CBService *> *)invalidatedServices
{
    //    device = peripheral;
    NSLog(@"peripheral : %@", peripheral);
    NSLog(@"didModifyServices : %@", invalidatedServices);
    
}


- (void)peripheral:(CBPeripheral *)peripheral didWriteValueForCharacteristic:(CBCharacteristic *)characteristic error:(NSError *)error {
    
    //_conDevice.peripheralRef = peripheral;
    
    NSLog(@"didWriteValueForCharacteristic [%@]", [self getChrName:characteristic]) ;

}


//update characteristic 데이터 처리
- (void)updateValueForDelegateWithCharacteristic:(CBCharacteristic*)characteristic {

    //wlan list
    if ([self isReadWlanForCharacteristic:characteristic]) {
        
        if( _delegate && [_delegate respondsToSelector:@selector(BLEWLanUpdateWithKey:result:)] ) {
            [_delegate BLEWLanUpdateWithKey:[self getChrName:characteristic]
                            result:[self asciiStringValue:characteristic]];
        }
    }
    //ssid argument 읽음
    else if ([[self getStrUUID:characteristic] isEquestToIgnoreCase:
              [self getServiceUUID:kBLEChrStSSIDArg]]) {
        
        if( _delegate && [_delegate respondsToSelector:@selector(BLEWiFiSSIDUpdate:)] ) {
            [_delegate BLEWiFiSSIDUpdate:[self asciiStringValue:characteristic]];
        }
    }
    //dhcp 읽음
    else if ([[self getStrUUID:characteristic] isEquestToIgnoreCase:
              [self getServiceUUID:kBLEChrStDHCPArg]]) {
        
        if( _delegate && [_delegate respondsToSelector:@selector(BLEWiFiDHCPUpdate:)] ) {
            [_delegate BLEWiFiDHCPUpdate:nil];
        }
    }
    //wifi connection
    else if ([[self getStrUUID:characteristic] isEquestToIgnoreCase:
              [self getServiceUUID:kBLEChrRdConInfo]]) {
        
        if( _delegate && [_delegate respondsToSelector:@selector(BLEWiFiConnectionUpdate:)] ) {
            [_delegate BLEWiFiConnectionUpdate:characteristic];
        }
    }
    //ssid
    else if ([self isReadConInfoForCharacteristic:characteristic]) {
        
        if( _delegate && [_delegate respondsToSelector:@selector(BLEWiFiConnectionInfoUpdateWithKey:result:)] ) {
            [_delegate BLEWiFiConnectionInfoUpdateWithKey:[self getChrName:characteristic]
                                                   result:[self asciiStringValue:characteristic]];
        }
    }
    
}



//wlan list read 인지 판단
- (BOOL)isReadWlanForCharacteristic:(CBCharacteristic*)characteristic {
    
    NSString *uuid = characteristic.UUID.UUIDString;
    
    BOOL rdWiFi = [uuid isEquestToIgnoreCase:[self getGatewayDicUUIDForKey:kBLEChrRdWiFiList1]] ||
    [uuid isEquestToIgnoreCase:[self getGatewayDicUUIDForKey:kBLEChrRdWiFiList2]] ||
    [uuid isEquestToIgnoreCase:[self getGatewayDicUUIDForKey:kBLEChrRdWiFiList3]];
    
    return rdWiFi;
}

//wlan list read 인지 판단
- (BOOL)isReadConInfoForCharacteristic:(CBCharacteristic*)characteristic {
    
    NSString *uuid = characteristic.UUID.UUIDString;

    //    static NSString *kBLEChrRdSSID = @"SSID_CHR_UUID";
    //    static NSString *kBLEChrRdBSSID = @"BSSID_CHR_UUID";
    //    static NSString *kBLEChrRnIpSet = @"WF_IP_SET_CHR_UUID";
    //    static NSString *kBLEChrRnIpAddr = @"WF_IP_ADDR_CHR_UUID";
    
    
    BOOL conInfo = [uuid isEquestToIgnoreCase:[self getGatewayDicUUIDForKey:kBLEChrRdSSID]] ||
    [uuid isEquestToIgnoreCase:[self getGatewayDicUUIDForKey:kBLEChrRdBSSID]] ||
    [uuid isEquestToIgnoreCase:[self getGatewayDicUUIDForKey:kBLEChrRnIpSet]] ||
    [uuid isEquestToIgnoreCase:[self getGatewayDicUUIDForKey:kBLEChrRnIpAddr]] ;
    
    return conInfo;
}
@end