JSJP_Student/jiaPei/Modules/HomePageModule/ViewModel/HomePage/RQHomePageViewModel.m

//
//  RQHomePageViewModel.m
//  RQCommon
//
//  Created by 张嵘 on 2018/11/21.
//  Copyright © 2018 张嵘. All rights reserved.
//

#import "RQHomePageViewModel.h"

@interface RQHomePageViewModel ()
@property (nonatomic, readwrite, strong) RACCommand *requestReLoginCommand;
/// The current `user`.
@property (nonatomic, readwrite , strong) RQUserModel *user;

@end

@implementation RQHomePageViewModel
#pragma mark - Public Method
- (instancetype)initWithServices:(id<RQViewModelServices>)services params:(NSDictionary *)params{
    if (self = [super initWithServices:services params:params]) {
        /// 获取user
        self.user = [RQ_USER_MANAGER currentUser];
    }
    return self;
}

- (void)initialize {
    [super initialize];
    
    self.title = @"";
    /// 隐藏导航栏的细线
    self.prefersNavigationBarBottomLineHidden = YES;
    
    ///配置数据
    [self rq_configureData];
}

#pragma mark - PrivateMethod
- (void)rq_configureData {
    @weakify(self);
    /// 获取网络数据+本地数据
    RACSignal *fetchLocalDataSignal = [RACSignal return:[self fetchLocalData]];
    RACSignal *requestRemoteDataSignal = self.requestRemoteDataCommand.executionSignals.switchToLatest;
    [[[fetchLocalDataSignal
       merge:requestRemoteDataSignal]
      deliverOnMainThread]
     subscribeNext:^(RQUserModel *user) {
         @strongify(self)
        [RQ_VIP_Module isVipWithSubject:0 complete:^(BOOL isVip) {}];
        [RQ_VIP_Module isActiveWithCcomplete:^(RQActivationModel * _Nullable activationModel, BOOL isSuccess) {}];
        [[RQ_HTTP_Service getMyScoreWithSubject:RQHomePageSubjectType_SubjectOne] subscribeNext:^(NSArray *examResultModelArr) {
            RQ_COMMON_MANAGER.myExamOneCount = examResultModelArr.count;
            RQ_COMMON_MANAGER.examResultOneListArr = examResultModelArr;
        }];
        
        [[RQ_HTTP_Service getMyScoreWithSubject:RQHomePageSubjectType_SubjectFour] subscribeNext:^(NSArray *examResultModelArr) {
            RQ_COMMON_MANAGER.myExamFourCount = examResultModelArr.count;
            RQ_COMMON_MANAGER.examResultFourListArr = examResultModelArr;
        }];
         [self willChangeValueForKey:@"user"];
         /// user模型的数据 重置，但是user的 指针地址不变
         [self.user mergeValuesForKeysFromModel:user];
         [self didChangeValueForKey:@"user"];
     }];
    [self.requestReLoginCommand execute:nil];
}

- (RACCommand *)requestReLoginCommand {
    @weakify(self)
    return [[RACCommand alloc] initWithSignalBlock:^RACSignal * _Nonnull(id  _Nullable input) {
        @strongify(self)
        return [[self requestReLoginSignal] takeUntil:self.rac_willDeallocSignal];
    }];
}

/// 获取本地的用户数据
- (RQUserModel *)fetchLocalData{
    return [RQ_USER_MANAGER currentUser];
}

/// 获取网络的用户数据 用于比对
- (RACSignal *)requestReLoginSignal {
    return [[RACSignal createSignal:^RACDisposable * _Nullable(id<RACSubscriber>  _Nonnull subscriber) {
        if (RQStringIsNotEmpty([SAMKeychain rawLogin]) && RQStringIsNotEmpty([SAMKeychain rawLoginPassword]) && RQ_USER_MANAGER.currentUser) {
            RQ_USER_MANAGER.currentUser.channel = RQUserLoginChannelTypeAutoLogin;
            [[RQ_HTTP_Service studentLoginWithLoginCode:[SAMKeychain rawLogin] password:[SAMKeychain rawLoginPassword]] subscribeNext:^(RQUserModel *userModel) {
                [subscriber sendNext:userModel];
            } error:^(NSError * _Nullable error) {
                [subscriber sendError:error];
            } completed:^{
                [subscriber sendCompleted];
            }];
        }
        return [RACDisposable disposableWithBlock:^{
            /// 取消任务
        }];
    }] doError:^(NSError * _Nonnull error) {
        [RQ_USER_MANAGER logoutUser];
        /// 延迟一段时间
        dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(1.0 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
            /// 这里切换 到账号登录的界面
            [RQNotificationCenter postNotificationName:RQSwitchRootViewControllerNotification object:nil userInfo:@{RQSwitchRootViewControllerUserInfoKey:@(RQSwitchRootViewControllerFromTypeLogout)}];
        });
        [QMUITips showError:[NSError rq_tipsFromError:error]];
    }];
}

@end