//
//  SubmitOrderControllerViewController.m
//  FirstLink
//
//  Created by jack on 15/6/18.
//  Copyright (c) 2015年 FirstLink. All rights reserved.
//

#import "SubmitOrderController.h"

#import "SubmitAddNewCell.h"
#import "SubmitDefaultAddressCell.h"
#import "SubmitDefaultIDCardCell.h"
#import "ConnectServiceHeaderCell.h"
#import "ProductDetailTableCell.h"
#import "FKSubmitDiscountView.h"
#import "SubmitInputCell.h"
#import "PindanCommonCell.h"
#import "SubmitCarriageMoneyCell.h"
#import "SubmitDiscountCardCell.h"
#import "FKGroupStepCell.h"

#import "SubmitBottomView.h"
#import "SubmitSelectTransportView.h"
#import "SubmitDiscountPickView.h"

#import "FKAddressDetailController.h"
#import "FKAddressListController.h"
#import "FKAddIdCardController.h"
#import "FKIdCardManageController.h"
#import "ChatViewController.h"
#import "FLControllerHelper.h"
#import "OrderPayController.h"
#import "WebViewController.h"

#import "FKSubmitOrderRequest.h"
#import "FKSubmitOrderReform.h"
#import "FKBindIdCardRequest.h"
#import "FKBindIdCardReform.h"

#define kMessageTextFieldTag 40
#define kInviteTextFiedlTag 41

#define kInviteAlertTag 100
#define kDeleteSpecAlertTag 900

@interface SubmitOrderController ()
<UITableViewDataSource, UITableViewDelegate, UITextFieldDelegate, UIAlertViewDelegate, FLNetworkDelegate, FKAddressListControllerDataSource, FKAddressListControllerDelegate, FKIdCardManageControllerDataSource, FKIdCardManageControllerDelegate>

@property (nonatomic, strong) UITableView               *tableView;
@property (nonatomic, strong) SubmitBottomView          *bottomView;
@property (nonatomic, strong) FKSubmitDiscountView      *discountView;
@property (nonatomic, strong) SubmitDiscountPickView    *pickerView;
@end

@implementation SubmitOrderController

- (instancetype)initWithPurchaseCache:(FKPurchaseCache *)cache {
    self = [super init];
    if (self) {
        self.viewModel.cache = cache;
    }
    return self;
}

- (void)viewDidLoad {
    [super viewDidLoad];
    
    [self initializeLayout];
    [self registerTableViewCells];
}

- (void)dealloc {
    [[NSNotificationCenter defaultCenter] removeObserver:self];
}

- (void)viewWillAppear:(BOOL)animated {
    [super viewWillAppear:animated];
    self.navigationItem.title = @"提交订单";
    [self.navigationController setNavigationBarHidden:NO animated:YES];
    
    // 如果有省份请求运费（地址选择页面回来）
    if ([self.viewModel hasAddressProvince]){
        [self requestForCarriage];
    } else {
        [self requestForInitalData];
    }
    
    if (self.viewModel.cache.isPindanNeedIDCard && !self.viewModel.selectedIdCardItem) {
        [FKBindIdCardRequest requestIdCardListDelegate:self];
    }
}

- (void)viewDidAppear:(BOOL)animated {
    [super viewDidAppear:animated];
}

- (void)viewWillDisappear:(BOOL)animated {
    [super viewWillDisappear:animated];
    
    self.navigationItem.title = @" ";
    [self.view endEditing:YES];
    if ([self.pickerView isShowing]) {
        [self.pickerView dismissAnimated];
    }
}

- (void)viewDidDisappear:(BOOL)animated {
    [super viewDidDisappear:animated];
}

#pragma mark - Request

- (void)requestForInitalData {
    [self.hudView show:YES];

    [FKSubmitOrderRequest requestUserAddressWithDelegate:self];
    [FKSubmitOrderRequest requestDiscountDataWithPostID:self.viewModel.cache.postID delegate:self];
    [FKSubmitOrderRequest requestPostageFreeWithDelegate:self];
}

- (void)requestForCarriage {
    // 请求运费
    NSString *province = [self.viewModel province];
    if (!province || province.length == 0) return;
    
    [self.hudView show:YES];
    
    long allWeight = [self.viewModel.cache getAllWeight];
    NSString *allWeightString = [NSString stringWithFormat:@"%ld", allWeight];
    [FKSubmitOrderRequest requestCarriagePriceWithProvince:province
                                                  allWight:allWeightString
                                                  delegate:self];
}

- (void)requestToCreateOrder {
    [self.hudView show:YES];
    [FKSubmitOrderRequest requestTradeNoWithJson:[self.viewModel getJsonStringForTradeNoRequset]
                                 subClassJsonStr:[self.viewModel getSubClassJsonStringForTradeNoRequset]
                                        delegate:self];
}

#pragma mark - response

- (void)networkDidReceiveError:(NSError*)error identify:(int)identify header:(MSGHeader*)header{
    [self.hudView hide:NO];
    
    if (identify == CARRIAGE_PRICE_REQ) {
        [self.tableView reloadData]; // 刷新代金券的bug
        [self refreshBottomView];
    } else if (identify == INVITE_CHECK_REQ){
        [FLProgressHUDHelper showText:@"邀请码验证失败" inView:self.view];
        self.viewModel.isInviteTrue = NO;
        [self refreshBottomView];
        return;
    }
    
    if (header.code.intValue == RESPONSE_MSG_BUSINESS_EXCEPTION) {
        [FLProgressHUDHelper showText:header.msg inView:self.view];
    } else if (header.code.intValue == RESPONSE_MSG_ACCESS_EXCEPTION){
        [FLProgressHUDHelper showText:@"请求失败" inView:self.view];
    }
}

- (void)networkDidSuccessResponse:(NSDictionary*)response identify:(int)identify header:(MSGHeader*)header{
    [self.hudView hide:NO];
    
    if (identify == ID_CARD_LIST_REQUEST) {
        NSArray *idCardArray = [FKBindIdCardReform parserIdCardListWithData:response];
        self.viewModel.selectedIdCardItem = [SubmitOrderViewModel validIdCardItemFromArray:idCardArray];
        
        [self.tableView reloadData];
    } else if (identify == USER_ADDRESS_REQ) {
        ShipAddress *addressModel = [FKSubmitOrderReform parserAddresModelWithDict:response];
        if (addressModel) {
            self.viewModel.selectedAddress = addressModel;
            if ([self.viewModel isPostageFree]) {
                [self.tableView reloadData];
                [self refreshBottomView];
                return;
            }
            NSString *allWeightString = [NSString stringWithFormat:@"%ld", [self.viewModel.cache getAllWeight]];
            [FKSubmitOrderRequest requestCarriagePriceWithProvince:[self.viewModel province]
                                                          allWight:allWeightString delegate:self];
        } else {
            [self.tableView reloadData];
            [self refreshBottomView];
        }
    } else if (identify == CARRIAGE_PRICE_REQ) {
        self.viewModel.carriagePrice = [FKSubmitOrderReform parserCarriagePriceWithDict:response];
        [self.tableView reloadData];
        [self refreshBottomView];
    } else if (identify == DISCOUNT_DATA_REQ) {
        self.viewModel.discountModel = [FKSubmitOrderReform parserDiscountItemWithDict:response];
        self.viewModel.inviteCutFee = [FKSubmitOrderReform parserInviteCutFeeWithDict:response];
        [self.viewModel ruledDiscount];
        [self.tableView reloadData];
        [self refreshBottomView];
    } else if (identify == TRADE_NO_REQ) {
        self.viewModel.paymentModel = [FKSubmitOrderReform parserPaymentItemWithDict:response];
        if (!self.viewModel.paymentModel) {
            [FLProgressHUDHelper showText:header.msg inView:self.view];
            return;
        }
        [self pushOrderPayController:self.viewModel.paymentModel];
    } else if (identify == INVITE_CHECK_REQ) {
        self.viewModel.isInviteTrue = [FKSubmitOrderReform parserInviteResWithDict:response];
        if (!self.viewModel.isInviteTrue) {
            [FLProgressHUDHelper showText:@"邀请码错误" inView:self.view];
        }
        [self refreshBottomView];
    } else if (identify == POSTAGE_FREE_REQ) {
        self.viewModel.isInternationalPostageFree = [FKSubmitOrderReform parseInternationalPostageFree:response];
        self.viewModel.activityText = [FKSubmitOrderReform parseActivityText:response];
        
        if (self.viewModel.isInternationalPostageFree) {
            [self.viewModel ruledDiscount];
            [self.tableView reloadData];
            
            self.discountView.hidden = NO;
            self.discountView.textLabel.text = self.viewModel.activityText;
        } else {
            self.discountView.hidden = YES;
        }
    }
}

#pragma mark - tableView dataSoure && delegate

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
    return [self.viewModel numberOfSectionsInTableView];
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    return [self.viewModel numberOfRowsInSection:section];
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    int cellType = 0;
    UITableViewCell *cell = [self.viewModel buildCellWithTableView:tableView forIndexPath:indexPath cellType:&cellType];
    switch (cellType) {
        case kSubmitCellTypeProductDetail:{
            WeakSelf(weakSelf);
            ProductDetailTableCell *detailCell = (ProductDetailTableCell *)cell;
            detailCell.numberChangeAction = ^(NSInteger number, NSIndexPath *indexPath){
                return [weakSelf refreshWithNewNumber:number indexPath:indexPath];
            };
            if (self.viewModel.cache.orderType == kOrderTypeGroup) {
                [detailCell configCellForGroup];
            } else {
                [detailCell configCellForNormal];
            }
        }
            break;
        case kSubmitCellTypeDiscount:{
            SubmitDiscountCardCell *discountCell = (SubmitDiscountCardCell *)cell;
            [discountCell.actionButton addTarget:self
                                          action:@selector(disCountButtonClick)
                                forControlEvents:UIControlEventTouchUpInside];
        }
            break;
        case kSubmitCellTypeInvite:{
            SubmitInputCell *inviteCell = (SubmitInputCell *)cell;
            inviteCell.inputField.delegate = self;
            inviteCell.inputField.tag = kInviteTextFiedlTag;
            return inviteCell;
        }
            break;
        case kSubmitCellTypeMessage:{
            SubmitInputCell *messageCell = (SubmitInputCell *)cell;
            messageCell.inputField.delegate = self;
            messageCell.inputField.tag = kMessageTextFieldTag;
            return messageCell;
        }
        default:
            break;
    }
    return cell;
}

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
    return [self.viewModel cellHeightForIndexPath:indexPath];
}

- (CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section {
    return 10;
}

- (CGFloat)tableView:(UITableView *)tableView heightForFooterInSection:(NSInteger)section {
    if (section ==  ([self.viewModel numberOfSectionsInTableView] - 1)) {
        if ([self.viewModel isInternationalPostageFree]) {
            return 32;
        }
        return 10;
    }
    return CGFLOAT_MIN;
}

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
    kSubmitCellType type = [self.viewModel cellTypeForIndexPath:indexPath];

    switch (type) {
        case kSubmitCellTypeAddAddress: {
            UIViewController *controller = [[FKAddressDetailController alloc] initWithAddress:nil type:FKAddressDetailControllerTypeAdd];
            controller.hidesBottomBarWhenPushed = YES;
            [self.navigationController pushViewController:controller animated:YES];
            break;
        }
        case kSubmitCellTypeAddress: {
            FKAddressListController *controller = [[FKAddressListController alloc] initWithType:FKAddressListControllerTypeChoice];
            controller.dataSource = self;
            controller.delegate   = self;
            
            controller.hidesBottomBarWhenPushed = YES;
            [self.navigationController pushViewController:controller animated:YES];
            break;
        }
        case kSubmitCellTypeAddIDCard: {
            UIViewController *controller = [FKAddIdCardController new];
            controller.hidesBottomBarWhenPushed = YES;
            [self.navigationController pushViewController:controller animated:YES];
            break;
        }
        case kSubmitCellTypeIDCard: {
            FKIdCardManageController *controller = [FKIdCardManageController new];
            controller.dataSource = self;
            controller.delegate = self;
            controller.hidesBottomBarWhenPushed = YES;
            [self.navigationController pushViewController:controller animated:YES];
            break;
        }
        case kSubmitCellTypeGroupProgress: {
            WebViewController *web = [[WebViewController alloc]init];
            web.url = [FKGroupStepCell pushExplainUrl];
            web.hidesBottomBarWhenPushed = YES;
            [self.navigationController pushViewController:web animated:YES];
            break;
        }
        default:
            break;
    }
}

#pragma mark - FKAddressListController DataSource & Delegate

- (NSString *)currentSelectedAddressID {
    return self.viewModel.selectedAddress.addressID;
}

- (void)addressListController:(FKAddressListController *)controller didSelectAddress:(ShipAddress *)address {
    if (address){
        self.viewModel.selectedAddress = address;
        [self.navigationController popToViewController:self animated:YES];
    }
}

- (void)addressListController:(FKAddressListController *)controller didUpdateAddress:(ShipAddress *)address {
    self.viewModel.selectedAddress = address;
}

#pragma mark - FKIdCardManageController DataSource & Delegate

- (NSString *)currentSelectedIDCard {
    return self.viewModel.selectedIdCardItem.itemID;
}

- (void)idCardManageController:(FKIdCardManageController *)controller didSelectItem:(FKIdCardItem *)item {
    if (item) {
        self.viewModel.selectedIdCardItem = item;
        [self.navigationController popToViewController:self animated:YES];
    }
}

- (void)idCardManageController:(FKIdCardManageController *)controller didRemoveItem:(FKIdCardItem *)item {
    self.viewModel.selectedIdCardItem = nil;
}

- (void)idCardManageController:(FKIdCardManageController *)controller didUpdateItem:(FKIdCardItem *)item {
    self.viewModel.selectedIdCardItem = item;
}

#pragma mark - action

- (void)disCountButtonClick {
    [self.view endEditing:YES];
    
    NSArray *titleArray = [self.viewModel.discountModel getDiscountStringArray];
    NSUInteger selectedIndex = [self.viewModel.discountModel usefulIndexWithDiscount:self.viewModel.selectedDiscount] + 1;
    [self.pickerView refreshTitleArray:titleArray withSelectedIndex:selectedIndex];
    [self.pickerView showInView:self.navigationController.view animated:YES];
}

- (void)submitConfirmBtnClick {
    // 判断收件地址是否为空
    if (![self.viewModel hasAddress]){
        [FLProgressHUDHelper showTipAlert:@"收货地址不能为空"];
        return;
    }
    
    // 判断邀请码是否正确，是否需要提示
    if ([self.viewModel shouldShowInviteAssert]) {
        UIAlertView *alertView = [[UIAlertView alloc]initWithTitle:@"提示"
                                                           message:@"邀请码不正确，是否继续下单"
                                                          delegate:self
                                                 cancelButtonTitle:@"取消"
                                                 otherButtonTitles:@"继续", nil];
        alertView.tag = kInviteAlertTag;
        [alertView show];
        return;
    }
    
    [self requestToCreateOrder];
}

#pragma mark - push controller

- (void)pushLawList{
    
}

- (void)pushOrderPayController:(SubmitPaymentItem *)paymentItem {
    [self.viewModel saveDataIntoCache:self.viewModel.cache];
    
    if (self.viewModel.cache.isNeedBindIDCard) {
        paymentItem.successController = FKOrderPaymentSuccessControllerBindIDCard;
    } else {
        if (self.viewModel.cache.orderType == kOrderTypeGroup) {
            paymentItem.successController = FKOrderPaymentSuccessControllerGroupOrder;
        } else {
            paymentItem.successController = FKOrderPaymentSuccessControllerRedpacket;
        }
    }
    OrderPayController *payController = [[OrderPayController alloc] initWithPaymentItem:paymentItem];
    
    NSMutableArray *viewControllers = [NSMutableArray arrayWithArray:self.navigationController.viewControllers];
    [viewControllers removeLastObject];
    [viewControllers addObject:payController];
    [self.navigationController setViewControllers:viewControllers animated:YES];
}

#pragma mark - method

- (void)discountSelectDoneWithIndex:(NSInteger)index {
    // 选择代金券
    if (index == 0) {    // 不使用代金券
        self.viewModel.selectedDiscount = nil;
    }else{
        self.viewModel.selectedDiscount = [self.viewModel.discountModel usefulDiscountAtIndex:index - 1];
    }
    [self refreshBottomView];
    [self.tableView reloadData];
}

- (BOOL)refreshWithNewNumber:(NSInteger)number indexPath:(NSIndexPath *)indexPath {
    if (number == 0){
        if (self.viewModel.cache.specArray.count <= 1) return NO;
        UIAlertView *alerView = [[UIAlertView alloc]initWithTitle:@"提示"
                                                          message:@"确定要删除该规格吗？"
                                                         delegate:self
                                                cancelButtonTitle:@"取消"
                                                otherButtonTitles:@"确认", nil];
        alerView.tag = (indexPath.row - 1) + kDeleteSpecAlertTag;
        [alerView show];
        return NO;
    }
    NSInteger specIndex = indexPath.row - 1;
    NSInteger allCount = number;

    for (NSInteger i = 0; i < self.viewModel.cache.specArray.count; i++) {
        PindanSpecItem *item = self.viewModel.cache.specArray[i];
        if (i != specIndex) allCount += item.selectedAmount;
    }
    
    if (allCount > [self.viewModel.cache getRealAmountLimit]) {
        NSString *warnString = [NSString stringWithFormat:@"每个账号只能购买%ld件哦", (long)[self.viewModel.cache getRealAmountLimit]];
        [FLProgressHUDHelper showText:warnString inView:self.view];
        return NO;
    }
    if (number > [self.viewModel.cache getStockLimitAtIndex:specIndex]) {
        NSString *warnString = [NSString stringWithFormat:@"该商品库存仅剩%ld件", (long)[self.viewModel.cache getStockLimitAtIndex:specIndex]];
        [FLProgressHUDHelper showText:warnString inView:self.view];
        return NO;
    }
    
    // 数量改变
    [self refreshSpecNumber:number atIndex:specIndex];
    return YES;
}

- (void)refreshSpecNumber:(NSUInteger)number atIndex:(NSInteger)index{
    [self.viewModel.cache changeSpecAmount:number AtIndex:index];
    [self.viewModel ruledDiscount]; // 对代金券重新判断
    
    long allWeight = [self.viewModel.cache getAllWeight];
    NSString *allWeightString = [NSString stringWithFormat:@"%ld", allWeight];
    
    [self.tableView reloadData];
    [self refreshBottomView];
    // 如果改变数字时，用户并未选择收货地址，下条请求里面已经中断
    [FKSubmitOrderRequest requestCarriagePriceWithProvince:[self.viewModel province]
                                                  allWight:allWeightString
                                                  delegate:self];
}

- (void)refreshBottomView {
    CGFloat totalFee = [self.viewModel.cache getTotalPrice] + [self.viewModel getCountryInCarriage];
    
    // 减去代金券
    CGFloat discountFee = [self.viewModel getCurrentDiscountFee];
    
    // 减去邀请码抵用
    CGFloat inviteFee = [self.viewModel getCurrentInviteFee];
    
    /**
     *  减去国际运费
     */
    CGFloat internationalPostageFee = [self.viewModel freeInternationalPostageFee];
    
    CGFloat allFee = totalFee - discountFee - inviteFee - internationalPostageFee;
    if (allFee < 0) allFee = 0;
    
    long allCount = [self.viewModel.cache getAllAmount];
    [self.bottomView refreshPriceWithAmount:allCount
                                   totalFee:allFee];
}

- (void)initializeLayout {
    [self.view addSubview:self.tableView];
    [self.view addSubview:self.bottomView];
    [self.view addSubview:self.discountView];
    
    [self.bottomView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.right.bottom.equalTo(self.view);
        make.height.equalTo(@50);
    }];
    [self.tableView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.right.top.equalTo(self.view);
        make.bottom.equalTo(self.bottomView.mas_top);
    }];
    [self.discountView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.right.equalTo(self.bottomView);
        make.bottom.equalTo(self.bottomView.mas_top);
        make.height.mas_equalTo(22);
    }];
}

- (void)registerTableViewCells {
    [self.tableView registerClass:[PindanBaseCell class] forCellReuseIdentifier:NSStringFromClass([PindanBaseCell class])];
    [self.tableView registerClass:[PindanCommonCell class] forCellReuseIdentifier:NSStringFromClass([PindanCommonCell class])];
    [self.tableView registerClass:[ProductDetailTableCell class] forCellReuseIdentifier:NSStringFromClass([ProductDetailTableCell class])];
    [self.tableView registerClass:[SubmitAddNewCell class] forCellReuseIdentifier:NSStringFromClass([SubmitAddNewCell class])];
    [self.tableView registerClass:[SubmitDefaultAddressCell class] forCellReuseIdentifier:NSStringFromClass([SubmitDefaultAddressCell class])];
    [self.tableView registerClass:[SubmitDefaultIDCardCell class] forCellReuseIdentifier:NSStringFromClass([SubmitDefaultIDCardCell class])];
    [self.tableView registerClass:[SubmitCarriageMoneyCell class] forCellReuseIdentifier:NSStringFromClass([SubmitCarriageMoneyCell class])];
    [self.tableView registerClass:[SubmitInputCell class] forCellReuseIdentifier:NSStringFromClass([SubmitInputCell class])];
    [self.tableView registerClass:[SubmitDiscountCardCell class] forCellReuseIdentifier:NSStringFromClass([SubmitDiscountCardCell class])];
    [self.tableView registerClass:[FKGroupStepCell class] forCellReuseIdentifier:NSStringFromClass([FKGroupStepCell class])];
}

#pragma mark - UIAlertView delegate

-(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex {
    if (alertView.tag >= kDeleteSpecAlertTag) {
        if (buttonIndex == 1) {
            NSInteger row = alertView.tag - kDeleteSpecAlertTag;
            // 数量改变
            [self refreshSpecNumber:0 atIndex:row];
            [self.tableView reloadData];
            
        }
        return;
    } else if (buttonIndex == 1 && alertView.tag == kInviteAlertTag) {
        // 继续付款
        [self requestToCreateOrder];
    }
}

#pragma mark - textFieldDelegate

- (void)textFieldDidEndEditing:(UITextField *)textField {
    if (textField.tag == kMessageTextFieldTag) {
        self.viewModel.messageText = textField.text;
    } else if (textField.tag == kInviteTextFiedlTag){
        if (textField.text.length == 0) {
            self.viewModel.inviteText = nil;
            return;
        }
        self.viewModel.inviteText = textField.text;
        [FKSubmitOrderRequest requestToCheckInvite:textField.text
                                      withDelegate:self];
    }
}

- (BOOL)textFieldShouldReturn:(UITextField *)textField {
    [textField resignFirstResponder];
    return YES;
}

#pragma mark - geter && setter

- (UITableView *)tableView {
    if (_tableView == nil) {
        _tableView = [[UITableView alloc]initWithFrame:CGRectZero style:UITableViewStyleGrouped];
        _tableView.dataSource = self;
        _tableView.delegate = self;
        _tableView.separatorStyle = UITableViewCellSeparatorStyleNone;
        _tableView.sectionFooterHeight = 0;
    }
    return _tableView;
}

- (SubmitBottomView *)bottomView {
    if (_bottomView == nil) {
        _bottomView = [[SubmitBottomView alloc]init];
        [_bottomView.confirmBtn addTarget:self action:@selector(submitConfirmBtnClick) forControlEvents:UIControlEventTouchUpInside];
    }
    return _bottomView;
}

- (FKSubmitDiscountView *)discountView {
    if (_discountView == nil) {
        _discountView = [[FKSubmitDiscountView alloc]init];
        _discountView.hidden = YES;
    }
    return _discountView;
}

- (SubmitDiscountPickView *)pickerView {
    if (_pickerView == nil) {
        _pickerView = [[SubmitDiscountPickView alloc] initWithFrame:CGRectZero];
        [_pickerView refreshTitleArray:[self.viewModel.discountModel getDiscountStringArray] withSelectedIndex:0];
        WeakSelf(weakSelf);
        _pickerView.selectDone = ^(NSInteger selectedIndex){
            [weakSelf discountSelectDoneWithIndex:selectedIndex];
        };
    }
    return _pickerView;
}

- (SubmitOrderViewModel *)viewModel {
    if (_viewModel == nil) {
        _viewModel = [[SubmitOrderViewModel alloc]init];
    }
    return _viewModel;
}

@end