//
//  Bluetooth.m
//  tongxin
//
//  Created by ecell on 2022/11/3.
//  Copyright © 2022 xTT. All rights reserved.
//

#import "Bluetooth.h"
#import <CoreBluetooth/CoreBluetooth.h>
#import "BLEModel.h"
#import "BLEConst.h"
#import "GCDTimerManager.h"
#import <objc/runtime.h>
#import <AVFoundation/AVFoundation.h>

// 超时间隔
#define TimeOutNumber 5

NSString *const sDeviceKey = @"sDeviceModel";

@interface Bluetooth ()<CBPeripheralDelegate,CBCentralManagerDelegate,AVAudioPlayerDelegate>

@property (strong, nonatomic) CBPeripheral *bleCurrentPeripheral;

@property (strong, nonatomic) NSString *selectedOtaFilePath;

@property (strong, nonatomic) CBCentralManager *bleManager;

@property (strong, nonatomic) NSMutableArray<BLEModel *> *blePeripheralArr;

/// 计时器
@property (nonatomic ,assign) NSInteger timeNumber;

/// 自动重连次数
@property (nonatomic ,assign) NSInteger ljNumber;
@property (nonatomic, strong) AVAudioPlayer *audioPlayer;

@end

@implementation Bluetooth

+ (instancetype)shareInstance
{
    static Bluetooth *share;
    static dispatch_once_t oneToken;
    
    dispatch_once(&oneToken, ^{
        share = [[self alloc] init];
        share.cache = [YYCache cacheWithName:@"lksh_cache_data"];
        if ([share.cache containsObjectForKey:sDeviceKey])
        {
            id object = [share.cache objectForKey:sDeviceKey];
            if ([object isKindOfClass:BLEModel.class])
            {
                share.currenModel = object;
            }
        }
    });
    return share;
}

- (instancetype)init
{
    self = [super init];
    if (self)
    {
        self.timeNumber = 0;
        self.ljNumber = 0;
        _bleManager = [[CBCentralManager alloc] initWithDelegate:self queue:nil];
    }
    return self;
}


#pragma mark - 扫描设备相关

#pragma mark 开始扫描
- (void)startScanBLE
{
    NSLog(@"BLE ---> startScanBLE.");
    _blePeripheralArr = [NSMutableArray new];
    if (_bleManager) {
        NSArray *uuids = @[[CBUUID UUIDWithString:BraceletServicesUUID]];
        if (_bleManager.state == CBManagerStatePoweredOn)
        {
            [_bleManager scanForPeripheralsWithServices:uuids options:nil];
        }
        else
        {
            __weak typeof(self) weakSelf = self;
            dispatch_after(0.5, dispatch_get_main_queue(), ^{
                if (weakSelf.bleManager.state == CBManagerStatePoweredOn)
                {
                    [weakSelf.bleManager scanForPeripheralsWithServices:uuids options:nil];
                }
            });
        }
    }
}

#pragma mark 停止扫描
- (void)stopScanBLE
{
    if (_bleManager) [_bleManager stopScan];
}



#pragma mark - 蓝牙设备连接相关

#pragma mark 断开当前蓝牙设备连接
- (void)disconnectBLE
{
    if (_bleCurrentPeripheral)
    {
        NSLog(@"BLE --->To disconnectBLE.");
        [_bleManager cancelPeripheralConnection:_bleCurrentPeripheral];
        [GCDTimerManager.sharedInstance cancelTimerWithName:@"Zhendong"];
        AudioServicesRemoveSystemSoundCompletion(kSystemSoundID_Vibrate);
        [GCDTimerManager.sharedInstance cancelTimerWithName:@"BLELJ"];
    }
}

#pragma mark 连接蓝牙设备

- (void)connectBLE:(BLEModel*)bleModel
{
    _bleCurrentPeripheral = bleModel.peripheral;
    self.currenModel = bleModel;
    [_bleCurrentPeripheral setDelegate:self];
    [_bleManager connectPeripheral:_bleCurrentPeripheral options:@{CBConnectPeripheralOptionNotifyOnDisconnectionKey:@(YES)}];
    [_bleManager stopScan];

    NSLog(@"BLE Connecting... Name ---> %@", bleModel.peripheral.name);
    //[self jisjiqi:0 bleModel:bleModel];
}

- (void)jisjiqi:(NSInteger)type bleModel:(BLEModel*)bleModel
{
    self.timeNumber = 0;
    [GCDTimerManager.sharedInstance cancelTimerWithName:@"BLELJ"];
    [GCDTimerManager.sharedInstance scheduleGCDTimerWithName:@"BLELJ" interval:1 queue:dispatch_get_main_queue() repeats:YES option:CancelPreviousTimerAction action:^{
        self.timeNumber++;
        NSLog(@"%ld",self.timeNumber);
        [[NSNotificationCenter defaultCenter] postNotificationName:@"LIANJIEZ" object:self.timeNumber%2 == 0 ? @"连接中..." : @"连接中.."];
        if (self.timeNumber == 15)
        {
            self.ljNumber ++;
            [GCDTimerManager.sharedInstance cancelTimerWithName:@"BLELJ"];
            if (self.ljNumber < 2)
            {
                if (type == 1)
                    [self connectPeripheralWithUUID];
                else
                    [self connectBLE:bleModel];
                
            }
            else
            {
                [[NSNotificationCenter defaultCenter] postNotificationName:BluetoothNotificationAtConnectFail object:nil];
                self.isConnected = NO;
                self.ljNumber = 0;
                
                NSString *switchNum = [[NSUserDefaults standardUserDefaults] objectForKey:@"WARNINGSWITCH"];
                if ([switchNum boolValue])
                {
                    NSURL *fileURL = [[NSBundle mainBundle]URLForResource:@"alarm_sound" withExtension:@".caf"];
                    self.audioPlayer = [[AVAudioPlayer alloc]initWithContentsOfURL:fileURL error:nil];
                    self.audioPlayer.delegate = self;
                    self.audioPlayer.numberOfLoops = 10;
                    [self.audioPlayer play];
                    [GCDTimerManager.sharedInstance scheduleGCDTimerWithName:@"Zhendong" interval:1 queue:dispatch_get_main_queue() repeats:YES option:CancelPreviousTimerAction action:^{
                        AudioServicesPlaySystemSound(kSystemSoundID_Vibrate);
                    }];
                }
                
                
                UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"防丢警告" message:@"您已经和您的设备远离，请确认设备是否还在您附近！！！" preferredStyle:UIAlertControllerStyleAlert];
                [alert addAction:[UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:^(UIAlertAction * _Nonnull action) {
                    [self.audioPlayer stop];
                    [GCDTimerManager.sharedInstance cancelTimerWithName:@"Zhendong"];
                    AudioServicesRemoveSystemSoundCompletion(kSystemSoundID_Vibrate);
                    
                }]];
                [[Bluetooth currentVC] presentViewController:alert animated:YES completion:nil];
            }
        }
    }];
}

#pragma mark AVAudioPlayerDelegate
/// 音频播放完成时
- (void)audioPlayerDidFinishPlaying:(AVAudioPlayer *)player successfully:(BOOL)flag
{
    [GCDTimerManager.sharedInstance cancelTimerWithName:@"Zhendong"];
    AudioServicesRemoveSystemSoundCompletion(kSystemSoundID_Vibrate);
}

#pragma mark 通过UDID重连
- (void)connectPeripheralWithUUID
{
    NSString *uuid = [[NSUserDefaults standardUserDefaults] objectForKey:AutomaticReconnectionDevice];
    if (!uuid) return;
    NSArray *uuidArr = @[[[NSUUID alloc] initWithUUIDString:uuid]];
    NSArray *phArr = [_bleManager retrievePeripheralsWithIdentifiers:uuidArr];//serviceUUID就是你首次连接配对的蓝牙

    if (phArr.count == 0)
    {
        return;
    }
    
    CBPeripheral* peripheral = phArr[0];
    if (phArr.firstObject
//        && [phArr.firstObject state] != CBPeripheralStateConnected
//        && [phArr.firstObject state] != CBPeripheralStateConnecting
        )
    {
        NSString *ble_name = peripheral.name;
        NSString *ble_uuid = peripheral.identifier.UUIDString;
        NSLog(@"FLT Connecting(Last)... Name ---> %@ UUID:%@",ble_name,ble_uuid);
        
        _bleCurrentPeripheral = peripheral;
        [_bleCurrentPeripheral setDelegate:self];
        
        [_bleManager connectPeripheral:_bleCurrentPeripheral options:@{CBConnectPeripheralOptionNotifyOnDisconnectionKey:@(YES)}];
        [self jisjiqi:1 bleModel:nil];
    }
}

/// 移除设备
- (void)disConnectedCurrenDevice
{
    [self disconnectBLE];
    [Bluetooth.shareInstance.cache containsObjectForKey:sDeviceKey withBlock:^(NSString * _Nonnull key, BOOL contains) {
        [self.cache removeObjectForKey:sDeviceKey withBlock:^(NSString * _Nonnull key) {
            
        }];
    }];
    [self.audioPlayer stop];
    [[NSNotificationCenter defaultCenter] postNotificationName:DISConnectedCurrenDevice object:nil];
    [GCDTimerManager.sharedInstance cancelTimerWithName:@"Zhendong"];
    AudioServicesRemoveSystemSoundCompletion(kSystemSoundID_Vibrate);
    [GCDTimerManager.sharedInstance cancelTimerWithName:@"BLELJ"];
    [[NSUserDefaults standardUserDefaults] removeObjectForKey:AutomaticReconnectionDevice];
    [[NSUserDefaults standardUserDefaults] removeObjectForKey:@"WARNINGSWITCH"];
}


#pragma mark - coreBlueTooth --系统代理

- (void)centralManagerDidUpdateState:(CBCentralManager *)central
{
    _mBleManagerState = central.state;
    if (central.state == CBManagerStatePoweredOn)
    {
        // 蓝牙开始重连
        [self connectPeripheralWithUUID];
    }
    else if (central.state == CBManagerStatePoweredOff)
    {
        [[NSNotificationCenter defaultCenter] postNotificationName:BluetoothNotificationAtPowerOff object:@"PowerOff"];
        CGFloat systemVision = DEVICEVERSION;
        if (systemVision <10 || systemVision >= 11) {
            if (self.isConnected) {
                // 连接断开发出通知
                self.isConnected = NO;
                [[NSNotificationCenter defaultCenter] postNotificationName:BluetoothNotificationAtDisconnect object:nil];
                // 清空所有
                self.writecharacteristic = nil;
            }
        }
        [self connectPeripheralWithUUID];
    }
}

//搜索蓝牙设备
- (void)centralManager:(CBCentralManager *)central didDiscoverPeripheral:(CBPeripheral *)peripheral
     advertisementData:(NSDictionary<NSString *,id> *)advertisementData RSSI:(NSNumber *)RSSI
{
    NSLog(@"搜索到了设备:%@ 标示:%@ advertisementData:%@",peripheral.name,peripheral.identifier.UUIDString,advertisementData);
    NSLog(@"搜索到的设备UUID：%@",peripheral.identifier.UUIDString);
    NSLog(@"%@",[advertisementData objectForKey:@"kCBAdvDataServiceData"]);
    NSString *ble_name = advertisementData[@"kCBAdvDataLocalName"];
    
    NSString *MACString = [[NSString alloc] init];
    NSData *manufacturerData = [advertisementData objectForKey:@"kCBAdvDataManufacturerData"];
    if (manufacturerData && manufacturerData.length >= 8)
    {
        NSData *MACData = [[advertisementData objectForKey:@"kCBAdvDataManufacturerData"] subdataWithRange:NSMakeRange(2, 6)];
        MACString = [BluetoothTool getPositiveSequenceMacWithData:MACData];
    }
    BLEModel *bleModel = [BLEModel new];
    bleModel.central = central;
    bleModel.peripheral = peripheral;
    bleModel.advertisementData = advertisementData;
    bleModel.RSSI = RSSI;
    bleModel.UUIDString = peripheral.identifier.UUIDString;
    bleModel.MACString = MACString;
    bleModel.DeName = peripheral.name;
    if (ble_name.length > 0)
        [self.blePeripheralArr addObject:bleModel];
    [[NSNotificationCenter defaultCenter] postNotificationName:@"BLEUPDATA" object:self.blePeripheralArr];
}



#pragma mark 连接外设--成功
- (void)centralManager:(CBCentralManager *)central didConnectPeripheral:(CBPeripheral *)peripheral
{
    NSLog(@"BLE Connected ---> Device %@", peripheral.name);
    [GCDTimerManager.sharedInstance cancelTimerWithName:@"BLELJ"];
    [peripheral discoverServices:nil];
    [self stopScanBLE];

    NSLog(@"连接成功！！！！！！");
    // 连接成功保存UUID,做重连使用
    [[NSUserDefaults standardUserDefaults] setObject:peripheral.identifier.UUIDString forKey:AutomaticReconnectionDevice];
    // 订阅了读数据才发出连接成功通知
    
    self.isConnected = YES;
    self.currenModel.peripheral = peripheral;
    self.bleCurrentPeripheral = peripheral;
    [self.bleCurrentPeripheral setDelegate:self];
    if (self.currenModel != nil)
    {
        NSMutableDictionary *dic = [NSMutableDictionary dictionary];
        //[dic setObject:self.currenModel.central forKey:@"central"];
//            [dic setObject:peripheral forKey:@"peripheral"];
//            [dic setObject:self.currenModel.advertisementData forKey:@"advertisementData"];
        [dic setObject:self.currenModel.RSSI forKey:@"RSSI"];
        [dic setObject:self.currenModel.UUIDString forKey:@"UUIDString"];
        [dic setObject:self.currenModel.MACString forKey:@"MACString"];
        [dic setObject:peripheral.name forKey:@"DeName"];

        BLEModel *model = [BLEModel yy_modelWithJSON:[self dictToJsonStr:dic]];
        self.currenModel = model;
        [self.cache setObject:model forKey:sDeviceKey];
        
    }
    
    [[NSNotificationCenter defaultCenter] postNotificationName:BluetoothNotificationAtConnectSuccess object:self.currenModel];
}

#pragma mark 连接外设——失败
- (void)centralManager:(CBCentralManager *)central didFailToConnectPeripheral:(CBPeripheral *)peripheral error:(NSError *)error
{
    NSLog(@"设备：%@--连接失败",peripheral.name);
    [SVProgressHUD showInfoWithStatus:NSLocalizedString(@"连接失败", nil)];
    // 连接失败发出通知
    [[NSNotificationCenter defaultCenter] postNotificationName:BluetoothNotificationAtConnectFail object:peripheral.name];
    self.isConnected = NO;
}


#pragma mark 取消或已经断开连接回调
- (void) centralManager:(CBCentralManager *)central didDisconnectPeripheral:(CBPeripheral *)peripheral error:(NSError *)error {
    NSLog(@"设备：%@--断开连接",peripheral.name);

    // 连接断开发出通知
    self.isConnected = NO;
    [[NSNotificationCenter defaultCenter] postNotificationName:BluetoothNotificationAtDisconnect object:peripheral.name];
    // 清空所有
    self.writecharacteristic = nil;
    [self connectPeripheralWithUUID];
}


#pragma mark - 中心读取外设实时数据
- (void)peripheral:(CBPeripheral *)peripheral didUpdateNotificationStateForCharacteristic:(CBCharacteristic *)characteristic error:(nullable NSError *)error
{
    if (error){NSLog(@"订阅失败");}
    if (characteristic.isNotifying) {NSLog(@"订阅成功");} else {NSLog(@"取消订阅");}
    // 判断是否监听设备广播通知成功 -->成功才发送连接成功通知
    if (characteristic.isNotifying && [characteristic.UUID isEqual:[CBUUID UUIDWithString:NotifycharacteristicUUIDString]])
    {
        NSLog(@"连接成功！！！！！！");
        // 连接成功保存UUID,做重连使用
        [[NSUserDefaults standardUserDefaults] setObject:peripheral.identifier.UUIDString forKey:AutomaticReconnectionDevice];
        // 订阅了读数据才发出连接成功通知
        
        self.isConnected = YES;
        self.currenModel.peripheral = peripheral;
        self.bleCurrentPeripheral = peripheral;
        [self.bleCurrentPeripheral setDelegate:self];
        if (self.currenModel != nil)
        {
            NSMutableDictionary *dic = [NSMutableDictionary dictionary];
            //[dic setObject:self.currenModel.central forKey:@"central"];
//            [dic setObject:peripheral forKey:@"peripheral"];
//            [dic setObject:self.currenModel.advertisementData forKey:@"advertisementData"];
            [dic setObject:self.currenModel.RSSI forKey:@"RSSI"];
            [dic setObject:self.currenModel.UUIDString forKey:@"UUIDString"];
            [dic setObject:self.currenModel.MACString forKey:@"MACString"];
            [dic setObject:peripheral.name forKey:@"DeName"];

            BLEModel *model = [BLEModel yy_modelWithJSON:[self dictToJsonStr:dic]];
            self.currenModel = model;
            [self.cache setObject:model forKey:sDeviceKey];
            
        }
        
        [[NSNotificationCenter defaultCenter] postNotificationName:BluetoothNotificationAtConnectSuccess object:self.currenModel];
    }
   
}

#pragma mark - 从外围设备读取数据
- (void)peripheral:(CBPeripheral *)peripheral didUpdateValueForCharacteristic:(CBCharacteristic *)characteristic error:(NSError *)error {
    NSLog(@" 设备发过来的 characteristic name:%@ value is:%@",characteristic.UUID,characteristic.value);

}

#pragma mark 发现服务回调
- (void)peripheral:(CBPeripheral *)peripheral didDiscoverServices:(NSError *)error
{
    for (CBService *service in peripheral.services) {
    NSLog(@"BLE Service ---> %@", service);
        [peripheral discoverCharacteristics:nil forService:service];
    }
}

#pragma mark 发现特征回调
- (void)peripheral:(CBPeripheral *)peripheral didDiscoverCharacteristicsForService:(CBService *)service error:(NSError *)error
{
    if ([service.UUID.UUIDString isEqualToString:@"1802"]
        || [service.UUID.UUIDString isEqualToString:@"1803"])
    {
        NSLog(@"服务-->%@",service.UUID.UUIDString);
        for (CBCharacteristic *characteristic in service.characteristics )
        {
            NSLog(@"特征---->%@",characteristic.UUID.UUIDString);
            if ([characteristic.UUID.UUIDString isEqualToString:@"2A06"] && [service.UUID.UUIDString isEqualToString:@"1802"])
            {
                [peripheral setNotifyValue:true forCharacteristic:characteristic];
                self.writecharacteristic = characteristic;
            }
            if ([characteristic.UUID.UUIDString isEqualToString:@"2A06"] && [service.UUID.UUIDString isEqualToString:@"1803"])
            {
                [peripheral setNotifyValue:true forCharacteristic:characteristic];
                self.writecharacteristicq = characteristic;
            }
        }
    }
}

//写入值的监听
- (void)peripheral:(CBPeripheral *)peripheral didWriteValueForCharacteristic:(CBCharacteristic *)characteristic error:(nullable NSError *)error
{
    NSLog(@"写入成功");
}



/// 发送指令
/// - Parameter cmd: 查找设备：0x00，取消查找：0x01，断开后报警：0x02/0xFF
- (void)writeCheckBleWithBle:(NSString *)cmd
{
    NSData *data = [cmd dataUsingEncoding:NSUTF8StringEncoding];                               
    [self.bleCurrentPeripheral writeValue:data forCharacteristic:self.writecharacteristic type:CBCharacteristicWriteWithResponse];
}





- (NSString *)dictToJsonStr:(NSMutableDictionary *)dict
{
    NSError *error = nil;
    NSData *jsonData = nil;
    if (!self) {
      return nil;
    }
    [dict enumerateKeysAndObjectsUsingBlock:^(id _Nonnull key, id _Nonnull obj, BOOL * _Nonnull stop) {
      NSString *keyString = nil;
      NSString *valueString = nil;
      if ([key isKindOfClass:[NSString class]]) {
        keyString = key;
      }else{
        keyString = [NSString stringWithFormat:@"%@",key];
      }

      if ([obj isKindOfClass:[NSString class]]) {
        valueString = obj;
      }else{
        valueString = [NSString stringWithFormat:@"%@",obj];
      }

      [dict setObject:valueString forKey:keyString];
    }];
    jsonData = [NSJSONSerialization dataWithJSONObject:dict options:NSJSONWritingPrettyPrinted error:&error];
    if ([jsonData length] == 0 || error != nil) {
      return nil;
    }
    NSString *jsonString = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
    return jsonString;
}


+ (UIViewController *)currentVC
{
    UIWindow * window = [[UIApplication sharedApplication] keyWindow];
    if (window.windowLevel != UIWindowLevelNormal)
    {
        NSArray *windows = [[UIApplication sharedApplication] windows];
        for(UIWindow * tmpWin in windows)
        {
            if (tmpWin.windowLevel == UIWindowLevelNormal)
            {
                window = tmpWin;
                break;
            }
        }
    }
    UIViewController *result = window.rootViewController;
    while (result.presentedViewController)
    {
        result = result.presentedViewController;
    }
    if ([result isKindOfClass:[UITabBarController class]])
    {
        result = [(UITabBarController *)result selectedViewController];
    }
    if ([result isKindOfClass:[UINavigationController class]])
    {
        result = [(UINavigationController *)result topViewController];
    }
    return result;
}



@end