//
//  FKBrandGuideController.m
//  FirstLink
//
//  Created by jack on 16/4/27.
//  Copyright © 2016年 FirstLink. All rights reserved.
//

#import "FKCategoryGuideController.h"

#import "FKGuideReform.h"
#import "FKGuideRequest.h"
#import "FKGuideBrandItem.h"
#import "FKGuideManager.h"

#import "FKCategoryCollectionCell.h"

static NSString *FK_CATEGORY_COLLECTION_IDENTIFY = @"FK_CATEGORY_COLLECTION_IDENTIFY";

#define FK_PREFER_CATEGORY_REQ  788
#define FK_PREFER_SAVE_REQ      789

#define CATEGORY_CELL_MARGIN (floor((UISCREENWIDTH - 30 - 20) / 3.0f))

@interface FKCategoryGuideController () <UICollectionViewDataSource, UICollectionViewDelegate, FLNetworkDelegate>

@property (nonatomic, assign) kSexType          sexType;
@property (nonatomic, assign) kAgeType          ageType;

@property (nonatomic, strong) UILabel           *titleLabel;
@property (nonatomic, strong) UIButton          *confirmBtn;
@property (nonatomic, strong) UIImageView       *bgImgView;
@property (nonatomic, strong) UICollectionView  *collectionView;

@property (nonatomic, strong) NSArray           *categoryArray;

@property (nonatomic, strong) FKPreferinfoItem   *infoItem;
@property (nonatomic, copy)   preferFinish      finishBlock;

@end

@implementation FKCategoryGuideController

- (instancetype)initWithInfoItem:(FKPreferinfoItem *)infoItem
                          finish:(preferFinish)finish{
    if (self = [super init]) {
        self.infoItem = infoItem;
        self.finishBlock = finish;
    }
    return self;
}

- (void)viewDidLoad{
    [super viewDidLoad];
    
    self.view.backgroundColor = UIColorFromRGB(0xf4f4f4);

    [self requestCategoryList];
    [self addAllSubviews];
}

- (void)viewWillAppear:(BOOL)animated{
    [super viewWillAppear:animated];
    
//    if ([self.navigationController respondsToSelector:@selector(interactivePopGestureRecognizer)]) {
//        self.navigationController.interactivePopGestureRecognizer.delegate = self;
//    }
}

- (void)requestCategoryList{
    
    [self.hudView show:YES];
    [FKGuideRequest reqPreferCategoryListWithIdentify:FK_PREFER_CATEGORY_REQ delegate:self];
}

- (void)addAllSubviews{
    
//    [self.view addSubview:self.bgImgView];
    [self.view addSubview:self.collectionView];
    [self.view addSubview:self.titleLabel];
    [self.view addSubview:self.confirmBtn];
    
//    CGFloat imgWidth = UISCREENHEIGH * 750.0f / 1334.0f;
//    
//    [self.bgImgView mas_makeConstraints:^(MASConstraintMaker *make) {
//        make.top.bottom.equalTo(self.view);
//        make.centerX.equalTo(self.view);
//        make.width.mas_equalTo(imgWidth);
//    }];
    
//    CGFloat confirmMargin = 70;
    CGFloat titleTop = 100.0f;
    
    if (UISCREENHEIGH <= 480){
        
        titleTop = 70;
//        confirmMargin = 30;
//        CGFloat imgHeight = UISCREENWIDTH * 1334.0f / 750.0f;
        
//        [self.bgImgView mas_remakeConstraints:^(MASConstraintMaker *make) {
//            make.top.bottom.equalTo(self.view);
//            make.left.right.equalTo(self.view);
//            make.height.mas_equalTo(imgHeight);
//        }];
    }
    
    [self.confirmBtn mas_makeConstraints:^(MASConstraintMaker *make) {
        make.bottom.equalTo(self.view).offset(IS_IPHONE_X ? -55 : -45);
        make.centerX.equalTo(self.view);
        make.size.mas_equalTo(CGSizeMake(140, 40));
    }];
    
    [self.titleLabel mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.equalTo(self.view).offset(titleTop);
        make.centerX.equalTo(self.view);
    }];
    
    [self.collectionView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.equalTo(self.titleLabel.mas_bottom).offset(20);
        make.left.equalTo(self.view).offset(15);
        make.right.equalTo(self.view).offset(- 15);
        make.bottom.equalTo(self.confirmBtn.mas_top).offset(- 20);
    }];
}

//- (BOOL)gestureRecognizerShouldBegin:(UIGestureRecognizer *)gestureRecognizer{
//    return NO;
//}

#pragma mark - response

- (void)networkDidSuccessResponse:(NSDictionary*)response identify:(int)identify header:(MSGHeader*)header {
    
    [self.hudView hide:NO];
    if (header.code.intValue == RESPONSE_MSG_NORMAL) {
        if (identify == FK_PREFER_CATEGORY_REQ){
            self.categoryArray = [FKGuideReform parserCategoryListWithDict:response];
            [self setItemSelectState];
            [self.collectionView reloadData];
        }else if (identify == FK_PREFER_SAVE_REQ){
            [self saveIntoInfoItem];
            FKPreferResController *perferRes = [[FKPreferResController alloc]initWithEdit:NO
                                                                                 infoItem:self.infoItem
                                                                                   finish:self.finishBlock
                                                                                   cancel:nil];
            [self.navigationController pushViewController:perferRes animated:YES];
        }
    }else{
        [FLProgressHUDHelper showText:header.msg inView:self.view];
    }
}

- (void)networkDidReceiveError:(NSError*)error identify:(int)identify header:(MSGHeader*)header{
    [self.hudView hide:NO];
    [FLProgressHUDHelper showText:header.msg inView:self.view];
}

#pragma mark - collectionView dataSource

- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section{
    return self.categoryArray.count;
}

- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath{
    FKCategoryCollectionCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:FK_CATEGORY_COLLECTION_IDENTIFY
                                                                           forIndexPath:indexPath];
    
    FKPreferCategoryItem *item = [self categoryItemAtIndex:indexPath.row];
    cell.selectImgView.hidden = !item.selected;
    cell.coverView.hidden = !item.selected;
    
    if (item.picUrl){
        [cell.imageView setImageWithURL:item.picUrl cdnWidth:CATEGORY_CELL_MARGIN];
    }
    return cell;
}

#pragma mark - collectionView delegate

- (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath{
    FKPreferCategoryItem *item = [self categoryItemAtIndex:indexPath.row];
    item.selected = !item.selected;
    [self.collectionView reloadData];
}

- (void)collectionView:(UICollectionView *)collectionView didDeselectItemAtIndexPath:(NSIndexPath *)indexPath{
    FKPreferCategoryItem *item = [self categoryItemAtIndex:indexPath.row];
    item.selected = !item.selected;
    [self.collectionView reloadData];
}

#pragma mark - method

- (void)saveIntoInfoItem{
    NSMutableArray *arrayM = [NSMutableArray arrayWithCapacity:self.categoryArray.count];
    for (FKPreferCategoryItem *item in self.categoryArray) {
        if (item.selected){
            [arrayM addObject:item];
        }
    }
    self.infoItem.categoryList = arrayM;
}

- (void)setItemSelectState{
    for (FKPreferCategoryItem *selectItem in self.infoItem.categoryList) {
        for (FKPreferCategoryItem *sourceItem in self.categoryArray) {
            if ([sourceItem.itemID isEqualToString:selectItem.itemID]){
                sourceItem.selected = YES;
                break;
            }
        }
    }
}

- (FKPreferCategoryItem *)categoryItemAtIndex:(NSUInteger)index{
    if (index < self.categoryArray.count){
        return self.categoryArray[index];
    }
    return nil;
}

- (NSArray *)selectedCategoryIdList{
    NSMutableArray *arrayM = [NSMutableArray arrayWithCapacity:self.categoryArray.count];
    
    for (FKPreferCategoryItem *item in self.categoryArray) {
        if (item.selected){
            [arrayM addObject:item.itemID];
        }
    }
    if (!arrayM.count) return nil;
    return arrayM;
}

#pragma mark - action

- (void)clickConfirmBtn:(UIButton *)sender{
    
    if (![self selectedCategoryIdList].count){
        [FLProgressHUDHelper showText:@"请至少选择一个类目" inView:self.view];
        return;
    }
    
    [self.hudView show:YES];
    [FKGuideRequest reqSavePreferWithIdentify:FK_PREFER_SAVE_REQ
                                      sexType:self.infoItem.sexType
                                      ageType:self.infoItem.ageType
                                 categoryList:[self selectedCategoryIdList]
                                     delegate:self];
}

#pragma mark - property

- (UILabel *)titleLabel{
    if (_titleLabel == nil) {
        _titleLabel = [[UILabel alloc]init];
        _titleLabel.font = [UIFont systemFontOfSize:14];
        _titleLabel.textColor = UIColorFromRGB(0x9c9c9c);
        _titleLabel.text = @"选择感兴趣的\n可多选";
        _titleLabel.textAlignment = NSTextAlignmentCenter;
        _titleLabel.numberOfLines = 2;
        [_titleLabel setContentHuggingPriority:UILayoutPriorityRequired forAxis:UILayoutConstraintAxisVertical];
    }
    return _titleLabel;
}

- (UIButton *)confirmBtn{
    if (_confirmBtn == nil) {
        _confirmBtn = [UIButton buttonWithType:UIButtonTypeCustom];
        [_confirmBtn setTitle:@"确 认" forState:UIControlStateNormal];
        [_confirmBtn setTitleColor:UIColorFromRGB(0xffffff) forState:UIControlStateNormal];
        [_confirmBtn setBackgroundColor:UIColorFromRGB(0xff6362)];
        _confirmBtn.titleLabel.font = [UIFont systemFontOfSize:15.5];
        [_confirmBtn addTarget:self action:@selector(clickConfirmBtn:) forControlEvents:UIControlEventTouchUpInside];
        _confirmBtn.layer.cornerRadius = 5.0f;
    }
    return _confirmBtn;
}

- (UICollectionView *)collectionView{
    if (_collectionView == nil) {
        
        UICollectionViewFlowLayout *flow = [[UICollectionViewFlowLayout alloc]init];
        flow.minimumLineSpacing = 10.0f;
        flow.minimumInteritemSpacing = 10.0f;
        flow.itemSize = CGSizeMake(CATEGORY_CELL_MARGIN, CATEGORY_CELL_MARGIN);

        _collectionView = [[UICollectionView alloc]initWithFrame:CGRectZero collectionViewLayout:flow];
        _collectionView.dataSource = self;
        _collectionView.delegate = self;
        _collectionView.backgroundColor = [UIColor clearColor];
        _collectionView.backgroundView = nil;
        _collectionView.allowsMultipleSelection = YES;
        
        [_collectionView registerClass:[FKCategoryCollectionCell class] forCellWithReuseIdentifier:FK_CATEGORY_COLLECTION_IDENTIFY];
    }
    return _collectionView;
}


- (UIImageView *)bgImgView{
    if (_bgImgView == nil) {
        
        NSString *bgStr = @"guideMan";
        if (self.sexType == kSexTypeWoman) bgStr = @"guideWoman";
        
        _bgImgView = [[UIImageView alloc ]initWithImage:[UIImage imageNamed:bgStr]];
        _bgImgView.contentMode = UIViewContentModeScaleAspectFit;
    }
    return _bgImgView;
}


@end