//
//  webRtcPingManager.m
//  双子星云手机
//
//  Created by xd h on 2024/12/24.
//

#import "webRtcPingManager.h"
#import "WHPingTester.h"

@interface webRtcPingManager ()<WHPingDelegate>
{
    WHPingTester *whPingTester;
    NSInteger pingRoomIndex;//开始ping的第x个机房IP
    
    CGFloat allTimeInPingOneIP;//一个IP ping多少次的总延时
    NSInteger pingOneIPNumber;//一个IPping多少次
    NSInteger pingOneIPErrorNumber;//一个IP 错了多少次
}
@end

@implementation webRtcPingManager

+ (instancetype)shareManager {
    static webRtcPingManager *_instance;
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        _instance = [[self alloc] init];
    });
    return _instance;
}

- (instancetype)init {

    if (self = [super init]) {
        pingRoomIndex = 0;
        //[self registeNotification];
    }
    return self;
}

- (void)startPingNextFun
{
    pingRoomIndex++;
    [self startPingFun];
}

#pragma mark ---ping-----站点 判断是否是局域网
- (void)startPingFun
{
    allTimeInPingOneIP = 0;
    pingOneIPNumber = 0;
    pingOneIPErrorNumber = 0;
    
    NSString* roomInternetIp = @"";
    NSArray<webrtcServerModel>* webrtcServerList = ksharedAppDelegate.DeviceWebRtcMsgMod.data.webrtcServerList;
    
    if (!webrtcServerList)
    {
        return;
    }
    else if(webrtcServerList.count > pingRoomIndex) {
        webrtcServerModel *model = webrtcServerList[pingRoomIndex];
        roomInternetIp = model.turnIp;
    }
    else{//完成遍历了
        
        NSString *logstr = [[NSString alloc] initWithFormat:@"ping 结束 当前最佳机房IP:%@--延时:%.02fms",ksharedAppDelegate.bestWebrtcServerModel.turnIp,ksharedAppDelegate.bestWebrtcServerModel.delayedms];
        
        HLog(@"%@",logstr)
        [cachesFileManager writeLogsWithMsg:logstr];
        
        NSDictionary *bestdict = [ksharedAppDelegate.bestWebrtcServerModel toDictionary];
        if(bestdict){
            [HWDataManager setObjectWithKey:@"Const_best_webRtc_IPRoom" value:bestdict];
        }
        [[webRtcManager shareManager] relinkWebRtcFun];
        
        [[NSNotificationCenter defaultCenter] postNotificationName:didPingBestWebRtcIPRoomNotification object:nil];
        return;
    }
    
    //IP 出错
    if(!roomInternetIp || roomInternetIp.length ==0){
        if(webrtcServerList && webrtcServerList.count > pingRoomIndex ){
            [self startPingNextFun];
        }
        return;
    }
    
    if (self->whPingTester)
    {
        [self->whPingTester stopPing];
        self->whPingTester = nil;
    }
    
    self->whPingTester = [[WHPingTester alloc] initWithHostName:roomInternetIp];
    self->whPingTester.delegate = self;
    //self->whPingTester.countdownTime = 1; //1秒ping一次
    [self->whPingTester startPing];
    
    
    /// 启动定时器监听 10秒后 whPingTester的状态
    KWeakSelf
    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(5 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
        if(self->whPingTester){
            [weakSelf didGetPingStateIsOK:NO];
        }
    });
    
}

#pragma mark ---ping---- 代理回调
- (void)didPingSucccessWithTime:(float)time withError:(NSError*) error
{
    HLog(@"time:%f \n error: %@",time,error)
    
    //if(error.code == 111 || time > 1000) //超时或者延时超过100ms，就要记录数据
    if(error != nil)
    {
        pingOneIPErrorNumber += 1;
    }
    else if(time > 0){
        allTimeInPingOneIP += time;
        pingOneIPNumber +=1 ;
        //[self didGetPingStateIsOK:YES];
        //test code
        //[self didGetPingStateIsOK:NO];
    }
    
    if(pingOneIPErrorNumber >= 3){
        [self didGetPingStateIsOK:NO];
    }
    else if (pingOneIPNumber >= 9){
        [self didGetPingStateIsOK:YES];
    }

}

- (void)didPingfialewithError:(NSError*)error
{
    HLog(@" error  error: %@",error)
    pingOneIPErrorNumber += 1;
    
    [self didGetPingStateIsOK:NO];
}

-(void)didGetPingStateIsOK:(BOOL)isOk
{
    [self->whPingTester stopPing];
    self->whPingTester = nil;
    
    if (allTimeInPingOneIP > 0) {
        CGFloat averageDelayedms = allTimeInPingOneIP/pingOneIPNumber;
        
        webrtcServerModel*preBestModel = ksharedAppDelegate.bestWebrtcServerModel;
        
        NSArray<webrtcServerModel>* webrtcServerList = ksharedAppDelegate.DeviceWebRtcMsgMod.data.webrtcServerList;
        if (!webrtcServerList || webrtcServerList.count > pingRoomIndex) {
            webrtcServerModel *model = webrtcServerList[pingRoomIndex];
            model.delayedms = averageDelayedms;
            
            NSString *logstr = [[NSString alloc] initWithFormat:@"time: 平均:%f --%@",averageDelayedms,model.turnIp];
            HLog(@"%@",logstr)
            
            [cachesFileManager writeLogsWithMsg:logstr];
            
            if([model.turnIp isEqualToString:preBestModel.turnIp]){
                preBestModel.delayedms = averageDelayedms;
            }
            else{
                if(preBestModel.delayedms > 0 && model.delayedms < preBestModel.delayedms){
                    //找到耗时更短的机房
                    ksharedAppDelegate.bestWebrtcServerModel = model;
                }
            }
        }
    }
    
    [self startPingNextFun];
}

@end