//
//  ENDynamicGlucoseDevice.m
//  RNBTDevice
//
//  Created by lvwang2002 on 2019/3/22.
//  Copyright © 2019 zmxv. All rights reserved.
//

#import "ENDynamicGlucoseDevice.h"

@implementation ENDynamicGlucoseDevice{
    CBCharacteristic *_sendCharacteristic;
    int _deviceStatus;

}

static  NSString* UUID_BTLE_SERVICE = @"6e400001-b5a3-f393-e0a9-e50e24dcca9e";
static  NSString* UUID_BTLE_SEND = @"6e400002-b5a3-f393-e0a9-e50e24dcca9e";
static  NSString* UUID_BTLE_RECEIVE = @"6e400003-b5a3-f393-e0a9-e50e24dcca9e";

static NSString *displayName = @"动态血糖";

static int CMD_SWITCH = 0x06;
static int RESPOND_NEW_WORK = 0x08;
static int RESPOND_OLD_WORK = 0x03;
static int CMD_START = 0x01;

static int CMD_GET_DATA = 0x04;
static int RESPOND_DATA = 0x02;

const int NO_WORK = 0;
const int CONTINUE_WORK = 1;
const int NEW_WORK = 2;

const unsigned char auchCRCHi[] = {
    0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,
    0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
    0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,
    0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
    0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1,
    0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
    0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1,
    0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
    0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,
    0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40,
    0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1,
    0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
    0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,
    0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40,
    0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,
    0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
    0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,
    0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
    0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,
    0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
    0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,
    0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40,
    0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1,
    0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
    0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,
    0x80, 0x41, 0x00, 0xC1, 0x81, 0x40
};

const unsigned char auchCRCLo[]={
    0x00, 0xC0, 0xC1, 0x01, 0xC3, 0x03, 0x02, 0xC2, 0xC6, 0x06,
    0x07, 0xC7, 0x05, 0xC5, 0xC4, 0x04, 0xCC, 0x0C, 0x0D, 0xCD,
    0x0F, 0xCF, 0xCE, 0x0E, 0x0A, 0xCA, 0xCB, 0x0B, 0xC9, 0x09,
    0x08, 0xC8, 0xD8, 0x18, 0x19, 0xD9, 0x1B, 0xDB, 0xDA, 0x1A,
    0x1E, 0xDE, 0xDF, 0x1F, 0xDD, 0x1D, 0x1C, 0xDC, 0x14, 0xD4,
    0xD5, 0x15, 0xD7, 0x17, 0x16, 0xD6, 0xD2, 0x12, 0x13, 0xD3,
    0x11, 0xD1, 0xD0, 0x10, 0xF0, 0x30, 0x31, 0xF1, 0x33, 0xF3,
    0xF2, 0x32, 0x36, 0xF6, 0xF7, 0x37, 0xF5, 0x35, 0x34, 0xF4,
    0x3C, 0xFC, 0xFD, 0x3D, 0xFF, 0x3F, 0x3E, 0xFE, 0xFA, 0x3A,
    0x3B, 0xFB, 0x39, 0xF9, 0xF8, 0x38, 0x28, 0xE8, 0xE9, 0x29,
    0xEB, 0x2B, 0x2A, 0xEA, 0xEE, 0x2E, 0x2F, 0xEF, 0x2D, 0xED,
    0xEC, 0x2C, 0xE4, 0x24, 0x25, 0xE5, 0x27, 0xE7, 0xE6, 0x26,
    0x22, 0xE2, 0xE3, 0x23, 0xE1, 0x21, 0x20, 0xE0, 0xA0, 0x60,
    0x61, 0xA1, 0x63, 0xA3, 0xA2, 0x62, 0x66, 0xA6, 0xA7, 0x67,
    0xA5, 0x65, 0x64, 0xA4, 0x6C, 0xAC, 0xAD, 0x6D, 0xAF, 0x6F,
    0x6E, 0xAE, 0xAA, 0x6A, 0x6B, 0xAB, 0x69, 0xA9, 0xA8, 0x68,
    0x78, 0xB8, 0xB9, 0x79, 0xBB, 0x7B, 0x7A, 0xBA, 0xBE, 0x7E,
    0x7F, 0xBF, 0x7D, 0xBD, 0xBC, 0x7C, 0xB4, 0x74, 0x75, 0xB5,
    0x77, 0xB7, 0xB6, 0x76, 0x72, 0xB2, 0xB3, 0x73, 0xB1, 0x71,
    0x70, 0xB0, 0x50, 0x90, 0x91, 0x51, 0x93, 0x53, 0x52, 0x92,
    0x96, 0x56, 0x57, 0x97, 0x55, 0x95, 0x94, 0x54, 0x9C, 0x5C,
    0x5D, 0x9D, 0x5F, 0x9F, 0x9E, 0x5E, 0x5A, 0x9A, 0x9B, 0x5B,
    0x99, 0x59, 0x58, 0x98, 0x88, 0x48, 0x49, 0x89, 0x4B, 0x8B,
    0x8A, 0x4A, 0x4E, 0x8E, 0x8F, 0x4F, 0x8D, 0x4D, 0x4C, 0x8C,
    0x44, 0x84, 0x85, 0x45, 0x87, 0x47, 0x46, 0x86, 0x82, 0x42,
    0x43, 0x83, 0x41, 0x81, 0x80, 0x40
};


-(instancetype)init{
    self = [super init];
    if(self){
        _deviceStatus = NO_WORK;
    }
    return self;
}

-(instancetype)initWithPeripheral:(CBPeripheral *)peripheral WithCentralManager:(CBCentralManager *)centerManager WithDevice:(BLEDevice *)device{
    self = [super initWithPeripheral:peripheral WithCentralManager:centerManager WithDevice:device];
    if(self){
        _deviceStatus = NO_WORK;
    }
    return self;
}

- (void)peripheral:(CBPeripheral *)peripheral didDiscoverServices:(NSError *)error{
    //找到服务,开始扫描指定的服务
    NSArray *array = [peripheral services];
    
    for( CBService *service in array ){
        CBUUID *serviceUUID = [CBUUID UUIDWithString:UUID_BTLE_SERVICE];
        if([serviceUUID isEqual:service.UUID]){
            NSArray *uuids = @[[CBUUID UUIDWithString:UUID_BTLE_SEND],
                               [CBUUID UUIDWithString:UUID_BTLE_RECEIVE]];
            
            [peripheral discoverCharacteristics:uuids forService:service];
            break;
        }
    }
}

- (void)peripheral:(CBPeripheral *)peripheral didDiscoverCharacteristicsForService:(CBService *)service error:(NSError *)error;{
    CBUUID *sendUUID = [CBUUID UUIDWithString:UUID_BTLE_SEND];
    CBUUID *receiveUUID = [CBUUID UUIDWithString:UUID_BTLE_RECEIVE];
    
    for( CBCharacteristic *characteristic in service.characteristics){
        NSString *log =[NSString stringWithFormat:@"characteristic is %@",characteristic];
        ENLog(log);
        
        if([characteristic.UUID isEqual:sendUUID]){
            _sendCharacteristic = characteristic;
            continue;
        }
        
        if([characteristic.UUID isEqual:receiveUUID]){
            [peripheral setNotifyValue:YES forCharacteristic:characteristic];
        }
    }
}

- (void)peripheral:(CBPeripheral *)peripheral didUpdateValueForCharacteristic:(CBCharacteristic *)characteristic error:(NSError *)error{
    CBUUID *receiveUUID = [CBUUID UUIDWithString:UUID_BTLE_RECEIVE];
    if( [receiveUUID isEqual:characteristic.UUID]){
        Byte *data = (Byte *)[[characteristic value] bytes];
        if(![self checkCRC:data]){
            return;
        }
        
        NSUInteger command = (NSUInteger)data[2];
        switch (command) {
            //开始工作
            case 0x01:{
                if(_deviceStatus == NEW_WORK){
                    if([self.deviceDelegate respondsToSelector:@selector(onStartPolarizationDevice:)]){
                        [(id)self.deviceDelegate onStartPolarizationDevice:_device];
                    }
                }else{
                    if([self.deviceDelegate respondsToSelector:@selector(onStartWork:)]){
                        [(id)self.deviceDelegate onStartWork:_device];
                    }
                }
                _deviceStatus = NO_WORK;
            }
                
            break;
            //选择不用状态开始进行
            case 0x06:{
                
                const int status = data[4];
                if([self.deviceDelegate respondsToSelector:@selector(onGetMonitorStatus:Status:)]){
                    [(id)self.deviceDelegate onGetMonitorStatus:_device Status:status];
                }
                
                dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.2 * NSEC_PER_SEC)), [[ENBLEDeviceManager shareDeviceManager] getPostQueue], ^{
                    if(_deviceStatus == NEW_WORK){
                        [self respondNewWork];
                    }else if(_deviceStatus == CONTINUE_WORK){
                        [self respondOldWork];
                    }else{
                        
                    }
                    
                });

                
            }
                break;
            //接收数据
            case 0x04:{
                
                MQGlucoseData *bloodGlucose = [self getBloodGlucose:data];
                if([self.deviceDelegate respondsToSelector:@selector(onUpdateNewDataDevice:BloodGlucose:)]){
                    [(id)self.deviceDelegate onUpdateNewDataDevice:_device BloodGlucose:bloodGlucose];
                    
                }
                
                dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.2 * NSEC_PER_SEC)), [[ENBLEDeviceManager shareDeviceManager] getPostQueue], ^{
                    [self respondData];
                });
                
            }
            default:
                break;
        }

        
    }
}

-(void)startWork{
    _deviceStatus = NEW_WORK;
}

-(void)continueWork{
    _deviceStatus = CONTINUE_WORK;
}



-(void)respondNewWork{
    const Byte cmdList[1] = {0x00};
    NSData *cmdData = [NSData dataWithBytes:cmdList length:1];
    NSData *data = [self assembleCommandCommand:RESPOND_NEW_WORK Data:cmdData];
    [self sendData:data];
}

-(void)respondOldWork{
    const Byte cmdList[1] = {0x00};
    NSData *cmdData = [NSData dataWithBytes:cmdList length:1];
    NSData *data = [self assembleCommandCommand:RESPOND_OLD_WORK Data:cmdData];
    [self sendData:data];
}

-(void)respondData{
    const Byte cmdList[1] = {0x00};
    NSData *cmdData = [NSData dataWithBytes:cmdList length:1];
    NSData *data = [self assembleCommandCommand:RESPOND_DATA Data:cmdData];
    [self sendData:data];
}

-(NSData *)assembleCommandCommand:(Byte)command Data:(NSData *)data{
    int commandLength = [data length]+6;
    const Byte *deviceData = [data bytes];
    Byte cmdData[20];
    cmdData[0] = 0x5a;
    cmdData[1] = 0xa5;
    cmdData[2] = command;
    cmdData[3] = [data length];
    for(int i=0;i<[data length];i++){
        cmdData[i+4] = deviceData[i];
    }
    
    unsigned short crc = Get_Crc16(cmdData, commandLength);
    cmdData[commandLength-2] = crc>>8;
    cmdData[commandLength-1] = crc&0x00ff;
    
    NSData *myData = [NSData dataWithBytes:cmdData length:commandLength];
    return  myData;
}


/** 发送数据 */
-(void)sendData:(NSData *)data{
    if(_peripheral == nil || _sendCharacteristic == nil){
        //如果附件和属性有为空项,不发送.
        return;
    }
    
    dispatch_async([[ENBLEDeviceManager shareDeviceManager] getPostQueue], ^{
        [_peripheral writeValue:data forCharacteristic:_sendCharacteristic type:CBCharacteristicWriteWithResponse];
    });
}


-(BOOL)checkCRC:(Byte *)data{
    return true;
}

unsigned short Get_Crc16(unsigned char *puchMsg,unsigned short usDataLen)
{
    unsigned char uchCRCHi=0xFF;
    unsigned char uchCRCLo=0xFF;
    unsigned short uIndex;
    while(usDataLen--)
    {
        uIndex=uchCRCHi^*puchMsg++;
        uchCRCHi=uchCRCLo^auchCRCHi[uIndex];
        uchCRCLo=auchCRCLo[uIndex];
    }
    return (uchCRCHi<<8|uchCRCLo);
}




-(MQGlucoseData *)getBloodGlucose:(Byte *)data{
    
    
    MQGlucoseData *bloodGlucose = [[MQGlucoseData alloc] init];
    bloodGlucose.index = (((unsigned short)(data[6]&0xff))<<8)|(data[5]&0xff);
    bloodGlucose.originalElectric = (((unsigned short)(data[8] & 0xff)) << 8) | (data[7] & 0xff);
    bloodGlucose.power = ((float) (data[9] & 0xff)) / 10.0f;
    bloodGlucose.BGElectric = (float)bloodGlucose.originalElectric;
    return bloodGlucose;
}






@end
