//
//  EZHttpUtil.m
//  EZOpenSDKDemo
//
//  Created by 陈嘉乐 on 2021/2/26.
//  Copyright © 2021 hikvision. All rights reserved.
//

#import "EZHttpUtil.h"
#import <Foundation/Foundation.h>
#import <CommonCrypto/CommonDigest.h>
#import "AFNetworking.h"

#define TestRequestHttpsHost @"https://test-gz.hdlcontrol.com"
#pragma mark API
#define API_POST_EZ_AddDevice @"/home-wisdom/platform/childAddDevice"
#define API_POST_EZ_GetChildToken @"/home-wisdom/platform/childToken"
#define API_POST_EZ_ChildDelDevice @"/home-wisdom/platform/childDelDevice"
#define API_POST_EZ_RefreshToken @"/smart-footstone/member/oauth/login"


#pragma mark APP_KEY
#define APP_KEY @"HDL-HOME-APP-TEST"
#define SECRET_KEY @"WeJ8TY88vbakCcnvH8G1tDUqzLWY8yss"


#define TIME_OUT 15.0f

@implementation EZHttpUtil

#pragma mark -接口请求部分


/// sharedManager
+ (id)sharedManager {
    static dispatch_once_t once;
    static id instance;
    dispatch_once(&once, ^{
        instance = [self new];
    });
    return instance;
}

/**
 *  @since 河东获取子账号token的接口
 *
 *  @param block 回调block
 */
- (void)getChildToken:(void (^)(NSString *accessToken))block{
    
    //2.设置请求参数
    NSMutableDictionary *parameters = [NSMutableDictionary dictionary];
    parameters = [self GetSignRequestDictionary:parameters];
    
    [self requestHttpsPost:API_POST_EZ_GetChildToken parameters:parameters completion:^(ResponseData *responseData) {
        if (block) {
            NSString * token = @"";
            if(responseData.success){
                token = responseData.data[@"accessToken"];
            }
            block(token);
        }
        
    }];
    
//    return task;
}
/**
 *  @since 河东添加设备的接口
 *  根据设备序列号和设备验证码添加设备接口
 *
 *  @param deviceSerial 设备序列号
 *  @param verifyCode   设备验证码
 *  @param completion   回调block，error为空时表示添加成功
 *
 */
- (void)addDeviceByHDL:(NSString *)deviceSerial
                              verifyCode:(NSString *)verifyCode
                              completion:(void (^)(ResponseData *responseData))completion{

    //2.设置请求参数
    NSMutableDictionary *parameters = [NSMutableDictionary dictionary];
    [parameters setValue:deviceSerial forKey:@"deviceSerial"];
    [parameters setValue:verifyCode forKey:@"validateCode"];
    parameters = [self GetSignRequestDictionary:parameters];
    
   [self requestHttpsPost:API_POST_EZ_AddDevice parameters:parameters completion:^(ResponseData *responseData) {
        if (completion) {
            completion (responseData);
        }
    }];
    
//    return task;
}

/**
 *  @since 河东删除设备的接口
 *  根据设备序列号删除设备接口
 *
 *  @param deviceSerial 设备序列号
 *  @param completion   回调block，error为空时表示添加成功
 *
 */
- (void)deleteDeviceByHDL:(NSString *)deviceSerial completion:(void (^)(ResponseData *responseData))completion{
    //1.设置请求参数
    NSMutableDictionary *parameters = [NSMutableDictionary dictionary];
    [parameters setValue:deviceSerial forKey:@"deviceSerial"];
    parameters = [self GetSignRequestDictionary:parameters];
    
    [self requestHttpsPost:API_POST_EZ_ChildDelDevice parameters:parameters completion:^(ResponseData *responseData) {
        if (completion) {
            completion (responseData);
        }
    }];
    
//    return task;
}



/// 刷新token
/// @param block 结果
- (void)refreshHDLToken:(void (^)(BOOL isSuccess))block{

    //1.设置请求参数
    NSMutableDictionary *parameters = [NSMutableDictionary dictionary];
    [parameters setValue:GlobalKit.shareKit.hdlRefreshToken forKey:@"refreshToken"];
    [parameters setValue:@"refresh_token" forKey:@"grantType"];
    [parameters setValue:@"APP" forKey:@"platform"];
    
    parameters = [self GetSignRequestDictionary:parameters];
    
    [self requestHttpsBase:API_POST_EZ_RefreshToken parameters:parameters completion:^(ResponseData *responseData) {
        if (block) {
            if (responseData) {
                if(responseData.success){
                    [EZSDK setHDlAccessToken:
                     [NSString stringWithFormat:@"%@%@",responseData.data[@"headerPrefix"], responseData.data[@"accessToken"]]
                                refreshToken:responseData.data[@"refreshToken"]];

                    block(YES);
                    return;
                }
            }
            block(NO);
        }
    }];
    
  
//    return task;
}


#pragma mark HttpUtil

/// 通用  请求服务器方法
/// @param apiPath 接口地址
/// @param parameters 请求参数
/// @param completion 请求响应参数
- (void)requestHttpsPost:(NSString *)apiPath
                                parameters:(NSMutableDictionary *)parameters
              completion:(void (^)(ResponseData *responseData))completion{
    
    [self requestHttpsBase:apiPath parameters:parameters completion:^(ResponseData *responseData) {
        if (completion) {
            if([responseData.code isEqual:@"10001"]){
                //刷新token
                [self refreshHDLToken:^(BOOL isSuccess) {
                    if (isSuccess) {
                        //刷新token成功，重新请求一次
                        [self requestHttpsBase:apiPath parameters:parameters completion:^(ResponseData *responseData) {
                            completion(responseData);
                            return;
                        }];
                    }
                }];
            }
            
            completion(responseData);
        }
    }];
}

/// 通用  请求服务器方法
/// @param apiPath 接口地址
/// @param parameters 请求参数
/// @param completion 请求响应参数
- (void)requestHttpsBase:(NSString *)apiPath
                                parameters:(NSMutableDictionary *)parameters
                                completion:(void (^)(ResponseData *responseData))completion{
    
    //1,创建你得请求url
    NSString *URL = [GlobalKit shareKit].GlobalRequestHttpsHost;
    if([self stringIsNullOrEmpty:URL]){
        URL = TestRequestHttpsHost;
    }
    URL = [NSString stringWithFormat:@"%@%@", URL, apiPath];
    
//    NSURLSessionDataTask * task=nil;
    AFHTTPSessionManager *manager = [[AFHTTPSessionManager alloc] initWithSessionConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]];
    AFHTTPResponseSerializer *responseSerializer = [AFHTTPResponseSerializer serializer];
    manager.responseSerializer = responseSerializer;
      
    //3.request
    NSMutableURLRequest * request = [[AFJSONRequestSerializer serializer] requestWithMethod:@"post" URLString:URL parameters:parameters error:nil];
    request.timeoutInterval = TIME_OUT;
    [request setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];
    [request setValue:@"application/json" forHTTPHeaderField:@"Accept"];
    [request setValue:GlobalKit.shareKit.hdlAccessToken forHTTPHeaderField:@"Authorization"];
    //4.dataTaskWithRequest
    [[manager dataTaskWithRequest:request completionHandler:^(NSURLResponse * _Nonnull response, id  _Nullable responseObject, NSError * _Nullable error) {
        if (completion) {
            ResponseData *responseData = [[ResponseData alloc] init];
            responseData.code = @"-1";
            
            if(responseObject != NULL){
                //4.解析拿到的响应数据
                NSLog(@"%@",[[NSString alloc]initWithData:responseObject encoding:NSUTF8StringEncoding]);
                NSDictionary * outDic = [NSJSONSerialization JSONObjectWithData:responseObject options:NSJSONReadingAllowFragments error:nil];
                responseData = [[ResponseData alloc] initWithDictionary:outDic];
            }
            
            if (!responseData) {
                responseData = [[ResponseData alloc] init];
            }
            completion(responseData);
        }
    }]resume];
//    return task;
}

/**
 *  基础服务的接口都要校验sign
 */
-(NSMutableDictionary *)GetSignRequestDictionary:(NSMutableDictionary *)params{
    if(params == NULL){
        params =[NSMutableDictionary dictionary];
    }
    UInt64 recordTime = [[NSDate date] timeIntervalSince1970]*1000;
    [params setValue:APP_KEY forKey:@"appKey"];
    [params setValue:[NSString stringWithFormat:@"%llu",recordTime] forKey:@"timestamp"];
    //1.对KEY升序
    NSArray *keyArray = [params allKeys];
    NSArray *sortKeyArray = [keyArray sortedArrayUsingComparator:^NSComparisonResult(id  _Nonnull obj1, id  _Nonnull obj2) {
        return [obj1 compare:obj2 options:NSNumericSearch];
    }];
    //2.2 拼接按URL键值对
    NSString *newString = @"";
    for(NSString *key in sortKeyArray){
        if(params[key] != NULL){
            NSString *valueStr = params[key];
            //检测当前参数是否需要参与校验
            if([self IfValueNeedSign:valueStr]){
                newString = [newString stringByAppendingString:[NSString stringWithFormat:@"%@=%@&", key,valueStr]];
            }
        }
    }
    //2.3 拼接SECRET_KEY
    newString = [newString substringToIndex:[newString length] - 1];
    newString = [newString stringByAppendingString: SECRET_KEY];
    //2.4 MD5转换+转小写
    if([self stringIsNullOrEmpty:newString]){
        newString = @"";
    }
    NSString* signstr = [self signMD5Encrypt:newString];
    [params setValue:signstr forKey:@"sign"];
    
    return params;
}


/// 字符串判空
/// @param valueStr 传入判断字符
- (BOOL)stringIsNullOrEmpty:(NSString *)valueStr
{
    if((valueStr == nil || [valueStr isKindOfClass:[NSNull class]] || valueStr.length == 0)){
        return YES;
    }else{
        return NO;
    }
    
}

/**
 MD5转换+转小写
 */
- (NSString*)signMD5Encrypt:(NSString *)str
{
    const char *cStr = [str UTF8String];
    unsigned char digest[CC_MD5_DIGEST_LENGTH];
    CC_MD5( cStr, strlen(cStr),digest );
    NSMutableString *result = [NSMutableString stringWithCapacity:CC_MD5_DIGEST_LENGTH * 2];
    for(int i = 0; i < CC_MD5_DIGEST_LENGTH; i++)
    [result appendFormat:@"%02x", digest[i]];
    return result;
    
    
}

/// <summary>
/// 判断当前值是否需要参与签名，保持跟云端一致
/// 空字符串不参与
/// 数组,集合,对象不参与
/// </summary>
/// <param name="valueStr"></param>
/// <returns></returns>
-(bool)IfValueNeedSign:(NSString *)valueStr{
    if (( [self stringIsNullOrEmpty:valueStr])//判空字符
        || ([[valueStr substringToIndex:1] isEqual:@"{"])//判断是否为对象
        || ([[valueStr substringToIndex:1] isEqual:@"["])//判断是否为数组
        ) {
        return false;
    }
    return true;
}


@end