//
//  MyIntroductionViewController.m
//  Ifish
//
//  Created by imac on 15/11/26.
//  Copyright © 2015年 imac. All rights reserved.
//

#import "MyIntroductionViewController.h"
#define kGoButtonHeight 60
#define kGoButtonDefaultTitle @""
///#define kBackColor [UIColor colorWithRed:0 green:157.f/255 blue:232.f/255 alpha:1]
#define kGoButtonBackColor [UIColor colorWithRed:0 green:109.f/255 blue:205.f/255 alpha:0.48]
#import "AppDelegate.h"
#import "RegistViewController.h"
static MyIntroductionViewController * introduction = nil;
@interface MyIntroductionViewController ()<UIScrollViewDelegate>
{
    
    NSArray * _imageNames;
    NSArray * _titles;
    NSArray * _contents;
    NSInteger _page;
   // void ((^_goActionBlock)(void));
}
@property(nonatomic,strong)NSMutableArray * imageViews;
@property(nonatomic,strong)UIScrollView * scrollView;
@property(nonatomic,strong)UIPageControl * pageControl;
@property(nonatomic,strong)UIButton * goButton;
@property(nonatomic,strong)UILabel * titleLable;
@property(nonatomic,strong)UILabel * contentLable;
@property(nonatomic,strong)UIButton*startbutton;
@end

@implementation MyIntroductionViewController
-(instancetype)init{
    self = [super init];
    if (self) {
        [self initData];
        [self configViews];
    }
    return self;
}
-(void)initData{
    self.introductionStyle = LXIntroductionStyleAllPageGoButton;
}
-(void)configViews{
    
    self.view.backgroundColor=COLOR_BACK_;
    
    [self.view addSubview:self.scrollView];
    
    [self.view addSubview:self.goButton];
    
}
-(void)setPage:(NSInteger)page{
    _page = page;
    [self setUpTitleLabel];
    [self setUpContentLabel];
    self.pageControl.currentPage = _page;
    
}
-(void)setUpTitleLabel{
    self.titleLable.text = self.titles[self.page];
}
-(void)setHiddenPageControl:(BOOL)hiddenPageControl{
    self.pageControl.hidden=hiddenPageControl;
}
-(void)setIntroductionStyle:(LXIntroductionStyle)introductionStyle{
    switch (introductionStyle) {
        case LXIntroductionStyleAllPageGoButton:
        {
            [self.view addSubview:self.goButton];
        }
            break;
        case LXIntroductionStyleFullScreenGoButton:
        {
            UIImageView * imgV = self.imageViews.lastObject;
            self.goButton.frame = CGRectMake(0, 0, self.scrollView.bounds.size.width, self.scrollView.bounds.size.height);
            [self.goButton setTitle:@"" forState:UIControlStateNormal];
            [imgV addSubview:self.goButton];
            self.goButton.backgroundColor=[UIColor clearColor];
        }
            break;
        case LXIntroductionStyleLastPageGoButton:
        {
            UIImageView * imgV = self.imageViews.lastObject;
            [imgV addSubview:self.goButton];
        }
            break;
        default:
            break;
    }
}

-(void)setUpScrollView{
    self.scrollView.contentSize = CGSizeMake(self.scrollView.bounds.size.width*self.imageNames.count, self.scrollView.bounds.size.height);
    self.scrollView.bounces=NO;
    //views
    for (int i=0; i<self.imageNames.count; i++) {
        UIImageView * imgV = [[UIImageView alloc]initWithImage:[UIImage imageNamed:self.imageNames[i]]];
        imgV.userInteractionEnabled=true;
        CGRect frame = imgV.frame;
        CGFloat oldH = imgV.bounds.size.height;
        CGFloat oldW = imgV.bounds.size.width;
        if (frame.size.width>self.scrollView.frame.size.width) {
            frame.size.width = self.scrollView.bounds.size.width;
            frame.size.height = frame.size.width * oldH / oldW;
            imgV.frame = frame;
        }
        imgV.center = CGPointMake((i+0.5)*self.scrollView.bounds.size.width, self.scrollView.bounds.size.height/2);
        [self.scrollView addSubview:imgV];
        [self.imageViews addObject:imgV];
    }
}
-(NSMutableArray *)imageViews{
    if (!_imageViews) {
        _imageViews = [NSMutableArray array];
    }
    return _imageViews;
}
-(NSInteger)page{
    return _page;
}
-(void)setImageNames:(NSArray *)imageNames{
    if (imageNames) {
        _imageNames = imageNames;
        [self setUpScrollView];
        self.pageControl.numberOfPages = _imageNames.count;
    }
}
-(void)setTitles:(NSArray *)titles{
    if (titles) {
        _titles =titles;
        [self setUpTitleLabel];
    }
}
-(NSArray *)titles{
    return _titles;
}

-(void)setContents:(NSArray *)contents{
    if (contents) {
        _contents = contents;
        [self setUpContentLabel];
    }
}
-(NSArray *)contents{
    return _contents;
}
-(void)setUpContentLabel{
    self.contentLable.text = self.contents[self.page];
}
-(NSArray *)imageNames{
    return _imageNames;
}

-(UIScrollView *)scrollView{
    if (!_scrollView ) {
        _scrollView = [[UIScrollView alloc]initWithFrame:CGRectMake(0, 0, self.view.bounds.size.width, self.view.bounds.size.height)];
        _scrollView.pagingEnabled=true;
        _scrollView.delegate=self;
        _scrollView.showsHorizontalScrollIndicator=false;
        _scrollView.showsVerticalScrollIndicator=false;
    }
    return _scrollView;
}
-(UIButton *)goButton{
    if (!_goButton) {
        _goButton = [UIButton buttonWithType:UIButtonTypeCustom];
        
        [_goButton setTitle:kGoButtonDefaultTitle forState:UIControlStateNormal];
        [_goButton setTitleColor:[UIColor lightTextColor] forState:UIControlStateHighlighted];
        _goButton.frame = CGRectMake(30,kScreenSize.height/2+40,kScreenSize.width-60,100);
        _goButton.tintColor=[UIColor whiteColor];
        
        [_goButton addTarget:self action:@selector(goButtonClick:) forControlEvents:UIControlEventTouchUpInside];
        _goButton.backgroundColor =[UIColor clearColor];
        
        
    }
    return _goButton;
}
-(UILabel *)titleLable{
    if (!_titleLable) {
        _titleLable = [[UILabel alloc]initWithFrame:CGRectMake(0, kGoButtonHeight, self.scrollView.frame.size.width, kGoButtonHeight)];
        _titleLable.textColor=[UIColor whiteColor];
        _titleLable.font = [UIFont boldSystemFontOfSize:36];
        _titleLable.textAlignment=NSTextAlignmentCenter;
        [self.view addSubview:_titleLable];
    }
    return _titleLable;
}
-(UILabel *)contentLable{
    if (!_contentLable) {
        _contentLable = [[UILabel alloc]initWithFrame:CGRectMake(0, self.goButton.frame.origin.y-kGoButtonHeight, self.scrollView.bounds.size.width, kGoButtonHeight)];
        _contentLable.textColor=[UIColor whiteColor];
        _contentLable.font = [UIFont boldSystemFontOfSize:16];
        _contentLable.textAlignment=NSTextAlignmentCenter;
        [self.view addSubview:_contentLable];
        
    }
    return _contentLable;
}
-(UIPageControl *)pageControl{
    if (!_pageControl) {
        _pageControl = [[UIPageControl alloc]initWithFrame:CGRectMake(0, kGoButtonHeight, self.view.bounds.size.width, kGoButtonHeight)];
        _pageControl.currentPage = 0;
        [self.view addSubview:_pageControl];
    }
    return _pageControl;
}
-(void)goButtonClick:(id)sender{
    if (self.goActionCallBack) {
        self.goActionCallBack(self);
    }
}
-(void)goButtonActionBlock:(void (^)(void))goButtonActionBlock{
    self.goActionCallBack = nil;
    self.goActionCallBack = [goButtonActionBlock copy];
}

//MARK: - scrollView delegate
//结束滚动
-(void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView{
    [self dismissLabel];
}

//MARK: - 动画部分
-(void)dismissLabel{
    
    [UIView animateWithDuration:0.25 delay:0 options:UIViewAnimationOptionCurveEaseIn animations:^{
        self.titleLable.alpha=0;
        self.contentLable.alpha=0;
    } completion:^(BOOL finished) {
        [self showLabel];
        self.page = self.scrollView.contentOffset.x / self.scrollView.bounds.size.width;
    }];
}
-(void)showLabel{
    [UIView animateWithDuration:0.25 delay:0 options:UIViewAnimationOptionCurveEaseIn animations:^{
        self.titleLable.alpha=1;
        self.contentLable.alpha=1;
    } completion:^(BOOL finished) {
        
    }];
}
+(MyIntroductionViewController *)shareIntrduction{
    if (!introduction) {
        introduction= [[MyIntroductionViewController alloc]init];
    }
    return introduction;
}

+(instancetype)showIntroductionWithTitles:(NSArray *)titles contents:(NSArray *)contents imageNames:(NSArray *)imageNames style:(LXIntroductionStyle)introductionStyle goButtonActionBlock:(GoActionBack)goButtonActionBlock{
   MyIntroductionViewController * intrVC = [MyIntroductionViewController shareIntrduction];
    intrVC.titles = titles;
    intrVC.contents = contents;
    intrVC.imageNames = imageNames;
    intrVC.introductionStyle = introductionStyle;
    intrVC.goActionCallBack = goButtonActionBlock;
    return intrVC;
}
@end