//
//  nasUploadManager.m
//  Private-X
//
//  Created by xd h on 2024/8/7.
//

#import "nasUploadManager.h"
#import "AFNetworking.h"
#import "AFNetworkReachabilityManager.h"
#import "AFHTTPSessionManager.h"
#import "frpUploadModel.h"

#define Kboundary @"Boundaryhxd"
#define KNewLine [@"\r\n" dataUsingEncoding:NSUTF8StringEncoding]

@interface nasUploadManager ()<NSURLSessionDataDelegate>
@property(nonatomic,strong)AFHTTPSessionManager *uploadManager;
@property (nonatomic, strong) NSURLSessionDataTask *uploadTask;
@end

@implementation nasUploadManager
+ (instancetype)shareInstance {
    static nasUploadManager *_instance;
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        _instance = [[self alloc] init];
    });
    return _instance;
}

- (id)init
{
    self = [super init];
    if (self) {
        [self initManager];
    }
    return self;
}

- (void)initManager
{
    _uploadManager = [[AFHTTPSessionManager alloc] init];
    _uploadManager.requestSerializer = [AFJSONRequestSerializer serializer];
    _uploadManager.responseSerializer = [AFJSONResponseSerializer serializer];
    
    [_uploadManager.requestSerializer setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];
    _uploadManager.responseSerializer.acceptableContentTypes = [NSSet setWithObjects:@"application/json",@"text/json", @"text/javascript",@"text/html",@"text/plain",nil];
    _uploadManager.requestSerializer.timeoutInterval = 180;
    
}

#pragma mark NSURLSessionDataDelegate

// 1响应
- (void)URLSession:(NSURLSession *)session dataTask:(NSURLSessionDataTask *)dataTask didReceiveResponse:(NSURLResponse *)response completionHandler:(void (^)(NSURLSessionResponseDisposition))completionHandler{
    
    completionHandler(NSURLSessionResponseAllow);
}

// 上传进度
- (void)URLSession:(NSURLSession *)session task:(NSURLSessionTask *)task didSendBodyData:(int64_t)bytesSent totalBytesSent:(int64_t)totalBytesSent totalBytesExpectedToSend:(int64_t)totalBytesExpectedToSend{
    
    //每包发送的大小bytesSent，totalBytesSent已经上传了多少；totalBytesExpectedToSend总共要发送多少
    // 32768 = 32KB
    HLog(@"didSendBodyData: %lld--%lld-%lld", bytesSent, totalBytesSent, totalBytesExpectedToSend);
    
}

// 2 接收数据
//- (void)URLSession:(NSURLSession *)session dataTask:(NSURLSessionDataTask *)dataTask didReceiveData:(NSData *)data{
//    
//    NSDictionary *infoDict = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingAllowFragments error:nil];
//    HLog(@"%@", infoDict);
//    
//}

// 3 完成
//- (void)URLSession:(NSURLSession *)session task:(NSURLSessionTask *)task didCompleteWithError:(NSError *)error{
//    HLog(@"上传完成 task:%@---error:%@", task,error);
//}

- (NSMutableData *)getBodyDataWithRequest:(NSMutableURLRequest *)request withModel:(uploadFileDataModel*)dataModel withData:(NSData*)data  withPara:(NSMutableDictionary*)params{
    
    //1 边界符号要配置请求头里面去
    /*
     multipart/form-data 是表单格式
     charset=utf-8 是utf-8编码
     bounary 是表单开头
     */
    [request setValue:[NSString stringWithFormat:@"multipart/form-data; charset=utf-8; boundary=%@", Kboundary] forHTTPHeaderField:@"Content-Type"];
    
    /// body
    NSMutableData *boydData = [NSMutableData data];
    // 2.1 边界符号（开始边界）
    
    //2.1.1 其它参数
    NSMutableString *paraString = [NSMutableString new];
    //[paraString appendFormat:@"--%@\r\n",Kboundary];//\n:换行 \n:切换到行首
    for (NSString *key in params) {
        NSString *value = params[key];
        [paraString appendFormat:@"--%@\r\n",Kboundary];//\n:换行 \n:切换到行首
        [paraString appendFormat:@"Content-Disposition: form-data; name=\"%@\"",key];
        [paraString appendFormat:@"\r\n"];
        [paraString appendFormat:@"\r\n"];
        [paraString appendFormat:@"%@\r\n",value];
    }
    
    //[boydData appendData:[paraString dataUsingEncoding:NSUTF8StringEncoding]];
    
    
    // body每一个段内容以换行符作为结束标示
    NSString *fileBeginBoundary = [NSString stringWithFormat:@"--%@\r\n", Kboundary];
    //[boydData appendData:[fileBeginBoundary dataUsingEncoding:NSUTF8StringEncoding]];
    
    [paraString appendString:fileBeginBoundary];
    
    // 2.2 属性配置 名字；key；类型
    
    NSString *serverFileKey = @"image";  //key
    //NSString *serverFileKey = @"file";
    NSString *serverContentTypes = @"image/png";  //类型
    
    if (dataModel.curUploadFileType == uploadFileTypeVideo) {
        serverFileKey = @"video";
        serverContentTypes = @"video/mp4";
    }
    
    
    NSString *serverFileName = dataModel.filename;  //name

    
    // filename已命名文件;  name相当于一个key, 这个名字和服务器保持一致
    /*
     理解key，表单发送给服务端，服务端拿到数据之后，可以将任务解析成一个字典了imageDict；图片数据会通过这个字典里面的name来获取图片（伪代码 image =  imageDict[serverFileKey]）
     */
    //2.3 拼接数据(创建一个字符串来拼装)
    NSMutableString *string = [NSMutableString new];
    [string appendFormat:@"Content-Disposition:form-data; name=\"%@\"; filename=\"%@\" ", @"file", serverFileName];
    //[string appendFormat:@"%@", KNewLine];
    [string appendFormat:@"\r\n"];
    [string appendFormat:@"Content-Type:%@", serverContentTypes];
//    [string appendFormat:@"%@", KNewLine];
//    [string appendFormat:@"%@", KNewLine];
    [string appendFormat:@"\r\n"];
    [string appendFormat:@"\r\n"];
   // [boydData appendData:[string dataUsingEncoding:NSUTF8StringEncoding]];
    
    [paraString appendString:string];
    [boydData appendData:[paraString dataUsingEncoding:NSUTF8StringEncoding]];
    
    // 2.3 拼接数据(拼接文件数据)
    [boydData appendData:data];
    
    // 2.4 边界符号 (结束边界)
    NSString *fileEndBoundary = [NSString stringWithFormat:@"\r\n--%@--", Kboundary];
    [boydData appendData:[fileEndBoundary dataUsingEncoding:NSUTF8StringEncoding]];
    
    return boydData;
}

- (void)startUpload:(NSMutableDictionary *)params model:(uploadFileDataModel*)dataModel data:(NSData *)data success:(netWork_Success)success faild:(netWork_Faild)faildStr {
    
    NSString *urlString = ksharedAppDelegate.NASFileByBoxService;
    urlString = [[NSString alloc] initWithFormat:@"%@uploadFile",urlString];
    NSURL *URL = [NSURL URLWithString:urlString];
    NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:URL];
    [request setHTTPMethod:@"POST"];
    
    //请求体
    NSMutableData *bodyData = [self getBodyDataWithRequest:request withModel:dataModel withData:data withPara:params];
    
    //设置请求体
    [request setHTTPMethod:@"POST"];
    [request setHTTPBody:bodyData];
    
    //设置请求体长度
    NSInteger length = [bodyData length];
    [request setValue:[NSString stringWithFormat:@"%ld",length] forHTTPHeaderField:@"Content-Length"];
    //设置 POST请求文件上传
    [request setValue:[NSString stringWithFormat:@"multipart/form-data; boundary=%@",Kboundary]  forHTTPHeaderField:@"Content-Type"];

    KWeakSelf
    //回话对象
    NSURLSession *session = [NSURLSession sessionWithConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration] delegate:self delegateQueue:nil];
    
    //请求task
    /*
     第一个参数:请求对象
     第二个参数:传递是要上传的数据(请求体)
     第三个参数:
     */
    NSURLSessionUploadTask *uploadTask = [session uploadTaskWithRequest:request fromData:nil completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) {
        //解析
        [weakSelf handleCustomUploadResultBy:data withResponse:response withError:error success:success faild:faildStr];
    }];
    
//    NSString *filePath = [cachesFileManager getFilePathWithName:dataModel.filename type:uploadFileTypeVideo]; // 文件路径
//    NSURL *filePathUrl = [NSURL URLWithString:filePath];
//    
//    NSURLSessionUploadTask *uploadTask = [session uploadTaskWithRequest:request fromFile:filePathUrl completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) {
//        HLog(@"data string:%@",[[NSString alloc]initWithData:data encoding:NSUTF8StringEncoding]);
    //[weakSelf handleCustomUploadResultBy:data withResponse:response withError:error];
//    }];
    
//    NSURLSessionDataTask *uploadTask = [session dataTaskWithRequest:request completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) {
//           
//        HLog(@"data string:%@",[[NSString alloc]initWithData:data encoding:NSUTF8StringEncoding]);
    //[weakSelf handleCustomUploadResultBy:data withResponse:response withError:error];
//
////           NSJSONSerialization *object = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableLeaves error:nil];
////           NSDictionary *dict = (NSDictionary *)object;
////           NSLog(@"=====%@",[dict objectForKey:@"success"]);
//       }];

    
    //执行Task
    [uploadTask resume];
    self.uploadTask = uploadTask;
}

#pragma mark 用系统方法写的上传处理
- (void)handleCustomUploadResultBy:(NSData*)data withResponse:(NSURLResponse*)response withError:(NSError*)error success:(netWork_Success)success faild:(netWork_Faild)faildStr{
    if(error){
        HLog(@"上传错误:%@",error)
        faildStr(error);
        return;
    }
    
    NSJSONSerialization *object = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableLeaves error:nil];
    NSDictionary *dict = (NSDictionary *)object;
    
    frpUploadModel *model = [[frpUploadModel alloc] initWithDictionary:dict error:nil];
    if(model && [model.msg isEqualToString:@"success"]){
        success(dict);
    }
    else{
        NSError *err = [NSError new];
        faildStr(err);
    }
}

#pragma mark afnetwork
- (void)nasUploadFileToFileServiceWithParams:(NSMutableDictionary *)params model:(uploadFileDataModel*)dataModel data:(NSData *)data success:(netWork_Success)success faild:(netWork_Faild)faildStr {
    
    //test code
//    [self startUpload:params model:dataModel data:data success:success faild:faildStr];
//    return;
    
    NSString *urlString = ksharedAppDelegate.NASFileByBoxService;
    urlString = [[NSString alloc] initWithFormat:@"%@uploadFile",urlString];
    
    NSInteger position = 0;
    if([[params allKeys] containsObject:@"position"]){
        NSNumber *positionNumber = params[@"position"];
        position = positionNumber.longValue;
    }
    
    __block long dataLength = [data length];
    HLog(@"上传地址：%@---%@---position:%ld--data 长度：%ld ",urlString,params,position,[data length]);
    
    self.uploadTask = [_uploadManager POST:urlString parameters:params constructingBodyWithBlock:^(id<AFMultipartFormData>  _Nonnull formData) {
        
        NSString *mimeType =@"application/octet-stream";
        if ([[params allKeys] containsObject:@"imageType"]) {
            mimeType = @"image/jpeg";
            //mimeType = @"jpg";
        }
        else if ([[params allKeys] containsObject:@"videoType"]) {
            //mimeType = @"video/mp4";
            mimeType = @"video";
        }
        
        [formData appendPartWithFileData:data name:@"file" fileName:params[@"filename"] mimeType:mimeType];
        
    } progress:^(NSProgress * _Nonnull uploadProgress) {
        HLog(@"上传 Progress：--%@---%lld",uploadProgress,uploadProgress.completedUnitCount)
        //dataModel.didUploadBytes = position + (uploadProgress.completedUnitCount);
        
        long didSendData = (long)(uploadProgress.fractionCompleted *dataLength);
        if(uploadProgress.fractionCompleted==1){
            didSendData = dataLength;
        }
        dataModel.didUploadBytes = position + didSendData;
        
        [[NSNotificationCenter defaultCenter] postNotificationName:uploadFileRefreshNotification object:dataModel];
        
    } success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {
        
        success(responseObject);
        
    } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error, id  _Nonnull responseObject) {
        if(error.code != -999){
            faildStr(error);
        }
    }];
    
    data = nil;
}

- (void)beginUploadDataBy:(uploadFileDataModel*)dataModel success:(netWork_Success)success faild:(netWork_Faild)faildStr
{
    NSMutableDictionary *paraDict = [NSMutableDictionary new];
    
    NSString* taskUid  = dataModel.taskId;
    if(!taskUid || taskUid.length == 0){
        taskUid = [iTools getTaskUidStr];
    }
    
    [paraDict setObject:taskUid forKey:@"taskId"];
    [paraDict setObject:@0 forKey:@"position"];
    [paraDict setObject:@"true" forKey:@"isLast"];
    if(dataModel.savePath){
        [paraDict setObject:dataModel.savePath forKey:@"savePath"];
    }
    else{
        HLog(@"获取保存路径失败")
        return;
    }
    
    if(dataModel.filename){
        [paraDict setObject:dataModel.filename forKey:@"filename"];
    }
    else{
        HLog(@"获取用户名失败")
        return;
    }
    
    KWeakSelf
    if(dataModel.curUploadFileType == uploadFileTypeImage){
        [paraDict setObject:@1 forKey:@"imageType"];
        NSData *curData = dataModel.imageData;
        
        [self nasUploadFileToFileServiceWithParams:paraDict model:dataModel data:curData success:^(id  _Nonnull responseObject) {
            HLog(@"%@上传完成 000",dataModel.filename)
            success(responseObject);
        } faild:^(NSError * _Nonnull error) {
            HLog(@"%@上传失败",dataModel.filename)
            faildStr(error);
        }];
    }
    else{
        [paraDict setObject:@0 forKey:@"videoType"];
        [paraDict setObject:@"false" forKey:@"isLast"];
        
        long curPosition = dataModel.didUploadBytes;
        [self beginUploadVideoDataFunBy:dataModel with:curPosition withPara:paraDict success:^(id  _Nonnull responseObject) {
            success(responseObject);
        } faild:^(NSError * _Nonnull error) {
            faildStr(error);
        }];
    }
    
}

- (void)beginUploadVideoDataFunBy:(uploadFileDataModel*)dataModel with:(NSInteger)position withPara:(NSMutableDictionary*)paraDict success:(netWork_Success)success faild:(netWork_Faild)faildStr
{

    BOOL isLastPicece = NO;
    if((dataModel.totalBytes - position) <= MaxNasUploadPieceSzie){
        [paraDict setObject:@"true" forKey:@"isLast"];
        isLastPicece = YES;
    }
    
    [paraDict setObject:[NSNumber numberWithLong:position] forKey:@"position"];
    
    //视频数据切片
    __block NSData *videoData = [self cutVideoFileFunAtIndex:position withMaxLenght:MaxNasUploadPieceSzie withModel:dataModel];
        
    KWeakSelf
    [self nasUploadFileToFileServiceWithParams:paraDict model:dataModel data:videoData success:^(id  _Nonnull responseObject) {
        HLog(@"%@上传完成 222 %@",dataModel.filename,responseObject)
        videoData = nil;
        
        frpUploadModel *model = [[frpUploadModel alloc] initWithDictionary:responseObject error:nil];
        if(model && model.msg){
            if (isLastPicece) {
                success(responseObject);
            }
            else{
                [weakSelf beginUploadVideoDataFunBy:dataModel with:model.position withPara:paraDict success:^(id  _Nonnull responseObject) {
                    success(responseObject);
                } faild:^(NSError * _Nonnull error) {
                    NSError *err = error;
                    if(error.code != -999){
                        faildStr(err);
                    }
                   
                }];
            }
        }
        else{
            videoData = nil;
            NSError *err = [NSError new];
            faildStr(err);
        }
        
    } faild:^(NSError * _Nonnull error) {
        HLog(@"%@上传失败---%@",dataModel.filename,error)
        videoData = nil;
        faildStr(error);
    }];
}

#pragma mark 分段读视频文件
-(NSData*)cutVideoFileFunAtIndex:(NSUInteger)dataIndex withMaxLenght:(NSInteger)maxLengt withModel:(uploadFileDataModel*)dataModel{
    NSString *filePath = [cachesFileManager getFilePathWithName:dataModel.filename type:uploadFileTypeVideo]; // 文件路径
    
    NSFileManager *manager0 = [NSFileManager defaultManager];
    if(![manager0 fileExistsAtPath:filePath]) {
     
        return [NSData new];
    }
    
    NSFileHandle *fileHandle = [NSFileHandle fileHandleForReadingAtPath:filePath]; // 创建文件句柄
      
    // 设置分段读取的大小，这里以每次读取1KB为例
    const NSUInteger chunkSize = maxLengt;//cutVideoPieceSzie;//5 * 1024 *1024;
    NSMutableData *data = [NSMutableData data];
    
    //把视频切成两份文件给凌云 
//    NSData* chunk = [fileHandle readDataOfLength:MaxNasUploadPieceSzie];
//    
//    [cachesFileManager getFileNameWithContent:chunk fileName:[[NSString alloc] initWithFormat:@"1_%@",dataModel.filename] type:uploadFileTypeVideo];
//    
//    [fileHandle seekToFileOffset:MaxNasUploadPieceSzie];
//    NSData* chunk2 = [fileHandle readDataToEndOfFile];
//    [cachesFileManager getFileNameWithContent:chunk2 fileName:[[NSString alloc] initWithFormat:@"2_%@",dataModel.filename] type:uploadFileTypeVideo];
//
//    return chunk2;
    
    if (fileHandle) {
       
        long long endOfFile = [fileHandle seekToEndOfFile];
        
        if(dataModel.totalBytes == 0
           || dataModel.totalBytes < endOfFile){//异常处理
            dataModel.totalBytes = endOfFile;
        }
        
        //异常处理
        if(endOfFile == dataIndex){
            dataModel.totalBytes = endOfFile;
            dataModel.didUploadBytes = endOfFile;
            dataModel.curUploadStateType = uploadStateDone;
            [fileHandle closeFile];
            return  data;
        }
        
        if (endOfFile >=  chunkSize) {
            
            // 读取文件的分段数据到某个位置
            [fileHandle seekToFileOffset:dataIndex];
            
            // 读取文件的分段数据
            NSData* chunk = [fileHandle readDataOfLength:chunkSize];
            if (chunk) {
                [data appendData:chunk];
            }
        }
        else{
            // 读取文件的分段数据到某个位置
            [fileHandle seekToFileOffset:dataIndex];
            
            [data appendData:[fileHandle readDataToEndOfFile]];
        }
        
        // 在这里可以对文件内容进行处理
        // ...
        
        // 关闭文件句柄
        [fileHandle closeFile];
    }
    
    HLog(@"视频切片完成 dataIndex:%ld --长度:%ld",dataIndex,[data length])
    return data;
}


#pragma mark 取消任务
- (void)cancelUploadTaskFun
{
    [self.uploadTask cancel];
}
@end