//
//  ViewController.m
//  JSJPCoach
//
//  Created by apple on 2017/3/10.
//  Copyright © 2017年 Danson. All rights reserved.
//

#import "ViewController.h"
#import "PersonalVC.h"
#import "PeriodVC.h"
#import "ExploreVC.h"
#import "ModelVC.h"
#import "PeriodStuCell.h"
#import "DES3Util.h"
#import "LoginVC.h"
#import "BindVC.h"
#import "STButton.h"


@interface ViewController ()<UIScrollViewDelegate>
{
    UIView          *btnBar; //分段选择器下方的滚动条。
    CGFloat         periodViewH;
    CGPoint         lastOffset; //保存scroll主页面。最后一次滚动的offset
}


@property(nonatomic,strong)UIScrollView *mainScroll;

/**分段选择器的按钮
 */
@property(nonatomic,strong)NSMutableArray *segBtnArray;
/**用于使scroll和按钮联动
 */
@property(nonatomic,assign)NSInteger pageIndex;

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    
    UIImageView *backImageView = [[UIImageView alloc] initWithFrame:kFrame];
    backImageView.image = [UIImage imageNamed:@"bgImage"];
    [self.view addSubview:backImageView];
    
    UIImageView *statusImageView = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, kSize.width, kStatusHeight + kSegmentHeight)];
    statusImageView.backgroundColor = RGB_COLOR(7, 11, 24);
    [backImageView addSubview:statusImageView];
    
    
    periodViewH = (kSize.height-SafeAreaBottomHeight)/6.0;
    _pageIndex = 1;
    self.periodType = 0;
	
//选择框
    NSArray *segTitleArray = @[@"我",@"预约",@"发现"];
    CGFloat segW = kSize.width/(segTitleArray.count);
    
    _segBtnArray = [NSMutableArray arrayWithCapacity:3];
    for (int i = 0; i<3; i ++)
    {
        UIButton *button = [[UIButton alloc] initWithFrame:CGRectMake(segW*i,kStatusHeight,segW,kSegmentHeight)];
        
        if (i == 1) {
            [button setImage:[UIImage imageNamed:@"carIcon"] forState:UIControlStateNormal];
            [button setImage:[[UIImage imageNamed:@"carIcon"] tint:defGreen] forState:UIControlStateSelected];
            [button setImageEdgeInsets:UIEdgeInsetsMake(2, (segW - 40)/2.0, 2, (segW - 40)/2.0)];
            button.selected = YES;
        }else{
            [button setTitle:[segTitleArray objectAtIndex:i] forState:UIControlStateNormal];
            [button setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
            [button setTitleColor:defGreen forState:UIControlStateSelected];
            [button.titleLabel setFont:[UIFont scaleSize:Font18]];
        }
        
        [button addTarget:self action:@selector(segSelected:) forControlEvents:UIControlEventTouchUpInside];
        [button setTag:i];
        [self.view addSubview:button];
        [_segBtnArray addObject:button];
    }
    
    btnBar = [[UIView alloc] initWithFrame:CGRectMake(segW + 20, kStatusHeight + kSegmentHeight - 3, segW - 40, 3)];
    [btnBar setBackgroundColor:defGreen];
    [self.view addSubview:btnBar];
    
//mainScroll
    CGFloat mainScrH = kSize.height - kNavOffSet - SafeAreaBottomHeight;//- periodViewH
    _mainScroll = [[UIScrollView alloc] initWithFrame:CGRectMake(0, kNavOffSet, kSize.width, mainScrH)];
    _mainScroll.delegate = self;
    [_mainScroll setShowsHorizontalScrollIndicator:NO];
    [self.view addSubview:_mainScroll];
    
    PersonalVC *personalVC = [[PersonalVC alloc] initWithScrFrame:CGRectMake(0, 0, kSize.width, mainScrH)];
    [self addChildViewController:personalVC];
    [_mainScroll addSubview:personalVC.view];
    
    PeriodVC *periodVC = [[PeriodVC alloc] init];
    periodVC.view.frame = CGRectMake(kSize.width, 0, kSize.width, mainScrH);
    [self addChildViewController:periodVC];
    [_mainScroll addSubview:periodVC.view];
    
    ExploreVC * exploreVC = [[ExploreVC alloc] initWithScrFrame:CGRectMake(kSize.width*2, 0, kSize.width, mainScrH)];
    [self addChildViewController:exploreVC];
    [_mainScroll addSubview:exploreVC.view];
    
    
    [_mainScroll setContentSize:CGSizeMake(kSize.width * _mainScroll.subviews.count, 0)];
    [_mainScroll setContentOffset:CGPointMake(kSize.width, _mainScroll.contentOffset.y) animated:NO];
    [_mainScroll setPagingEnabled:YES];
    [_mainScroll setDecelerationRate:.2]; //用于使scroll快速完成减速
}

- (void)viewWillAppear:(BOOL)animated {
    [super viewWillAppear:animated];
    self.navigationController.navigationBarHidden = YES;
	
}

-(void)viewWillDisappear:(BOOL)animated
{
    [super viewWillDisappear:animated];
    self.navigationController.navigationBarHidden = NO;
}

#pragma mark          scroll & 滑动按钮
-(void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView{
    if (_mainScroll == scrollView) {
        lastOffset = scrollView.contentOffset;
        NSInteger pInd = (int)(lastOffset.x / kSize.width);
        if (pInd == self.pageIndex) {
            return;//滑动不足切换页面
        }
        self.pageIndex = pInd;
    }
}

//分段按钮，和scroll联动
-(void)segSelected:(UIButton*)sender
{
    if (sender.tag == self.pageIndex) {
        return;
    }
    self.pageIndex = sender.tag;
}

-(void)setPageIndex:(NSInteger)pageIndex{
    [_segBtnArray[_pageIndex] setSelected:NO];
    _pageIndex = pageIndex;
    [_segBtnArray[_pageIndex] setSelected:YES];
    //为了实现循环滚动
    [_mainScroll setContentOffset:CGPointMake(kSize.width*pageIndex, _mainScroll.contentOffset.y) animated:NO];
    
    CGSize size = btnBar.frame.size;
    [UIView animateWithDuration:.2 animations:^{
        btnBar.frame = CGRectMake(kSize.width/_segBtnArray.count * _pageIndex + 20, btnBar.frame.origin.y, size.width, size.height);
    }];
}




- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}













@end