//
//  YRSideViewController.m
//  YRSnippets
//
//  Created by 王晓宇 on 14-5-10.
//  Copyright (c) 2014年 王晓宇. All rights reserved.
//

#import "YRSideViewController.h"
#import "UIImage+ImageEffects.h"
#import <QuartzCore/QuartzCore.h>
#import "orderHelpController.h"

#define SCREEN_WIDTH [UIScreen mainScreen].bounds.size.width
#define SCREEN_HEIGHT [UIScreen mainScreen].bounds.size.height

@interface YRSideViewController ()<UIGestureRecognizerDelegate,orderContentHelpDelegate,UIAlertViewDelegate>{
    UIView *_baseView;//目前是_baseView
    UIView *_currentView;//其实就是rootViewController.view
    
    UIPanGestureRecognizer *_panGestureRecognizer;
    UISwipeGestureRecognizer *_swipeGestrurerecognizer;
    
    CGPoint _startPanPoint;
    CGPoint _lastPanPoint;
    BOOL _panMovingRightOrLeft;//true是向右，false是向左
    
    UIButton *_coverButton;
    
    BOOL _isInit;//是否是初始化
    NSInteger snapCount;
}
@property(nonatomic, strong)UIImageView *maskView;
@property(nonatomic, strong)UIImageView *addBtnView;
@property(nonatomic, strong)orderHelpController *orderHelpVC;
@end

@implementation YRSideViewController
@synthesize panGestureRecognizer;
@synthesize delegate;

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {
        // Custom initialization
        _leftViewShowWidth = 267;
        _rightViewShowWidth = 267;
        _animationDuration = 0.35;
        _showBoundsShadow = true;
        
        _panGestureRecognizer = [[UIPanGestureRecognizer alloc]initWithTarget:self action:@selector(pan:)];
        [_panGestureRecognizer setDelegate:self];
        
        _panMovingRightOrLeft = false;
        _lastPanPoint = CGPointZero;
        
        _swipeGestrurerecognizer = [[UISwipeGestureRecognizer alloc]initWithTarget:self action:@selector(swipe:)];
        _swipeGestrurerecognizer.direction= UISwipeGestureRecognizerDirectionRight;
        
        _coverButton = [[UIButton alloc]initWithFrame:CGRectMake(0, 0, SCREEN_WIDTH, SCREEN_HEIGHT)];
        [_coverButton addTarget:self action:@selector(hideSideViewController) forControlEvents:UIControlEventTouchUpInside];
        
        _isInit = true;
        
    }
    return self;
}

- (id)init{
    return [self initWithNibName:nil bundle:nil];
}

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view.
    
    _baseView              = self.view;
    [_baseView setBackgroundColor:[UIColor colorWithRed:0.5 green:0.6 blue:0.8 alpha:1]];
    self.needSwipeShowMenu = true;
    snapCount = 0;
}

- (void)viewWillAppear:(BOOL)animated{
    [super viewWillAppear:animated];
    
    [MobClick beginLogPageView:@"PageOne"];

    if (!self.rootViewController) {
        NSAssert(false, @"you must set rootViewController!!");
    }
    if (_isInit) {
        [self resetCurrentViewToRootViewController];
        _isInit=false;
    }
}

- (void)viewWillDisappear:(BOOL)animated {
    [super viewWillDisappear:animated];
    [MobClick endLogPageView:@"PageOne"];
}

- (UIImageView*)maskView {
#warning ios 6 or below will break up. Please take care of this!
//    _maskView = [self customSnapshotImageFromView:_currentView];
    _maskView = [UIImageView new];
    
    _maskView.frame = _currentView.bounds;
    _maskView.userInteractionEnabled = YES;
    _maskView.alpha = 0.0f;
    
    snapCount = snapCount + 1;
    if (snapCount == 10) {
        snapCount = 10;
    }
    return _maskView;
}

- (UIImageView*)addBtnView {
    if (!_addBtnView) {
        
        _addBtnView = [[UIImageView alloc]initWithFrame:CGRectZero];
        if (isIOS7) {
            _addBtnView.frame = CGRectMake(_leftViewShowWidth+15, 18+20, 20, 20);
        }else {
            _addBtnView.frame = CGRectMake(_leftViewShowWidth+15, 0+20, 20, 20);
        }
        _addBtnView.hidden = YES;
    }
    if ([[TPUserDefault instance].isNightMode intValue] == 0) {
        _addBtnView.image = Image(@"frontPage/add_btn.png");
    }else {
        _addBtnView.image = Image(@"frontPage/add_btn_night.png");
    }
    /**
     * bug:5180(夜间模式，订阅导航页，右上角的X不显示)
     */
    return _addBtnView;
}

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

- (void)setRootViewController:(UIViewController *)rootViewController{
    if (_rootViewController!=rootViewController) {
        if (_rootViewController) {
            [_rootViewController removeFromParentViewController];
        }
        _rootViewController=rootViewController;
        if (_rootViewController) {
            [self addChildViewController:_rootViewController];
        }
        if (!_isInit) {
            [self resetCurrentViewToRootViewController];
        }
        
    }
}
-(void)setLeftViewController:(UIViewController *)leftViewController{
    if (_leftViewController!=leftViewController) {
        if (_leftViewController) {
            [_leftViewController removeFromParentViewController];
        }
        _leftViewController=leftViewController;
        if (_leftViewController) {
            [self addChildViewController:_leftViewController];
        }
    }
}
-(void)setRightViewController:(UIViewController *)rightViewController{
    if (_rightViewController!=rightViewController) {
        if (_rightViewController) {
            [_rightViewController removeFromParentViewController];
        }
        _rightViewController=rightViewController;
        if (_rightViewController) {
            [self addChildViewController:_rightViewController];
        }
    }
}


- (void)setNeedSwipeShowMenu:(BOOL)needSwipeShowMenu{
    _needSwipeShowMenu = needSwipeShowMenu;
    if (needSwipeShowMenu) {
        [_baseView addGestureRecognizer:_panGestureRecognizer];
    }else{
        [_baseView removeGestureRecognizer:_panGestureRecognizer];
    }
}
- (void)showShadow:(BOOL)show{
    _currentView.layer.shadowOpacity    = show ? 0.8f : 0.0f;
    if (show) {
        _currentView.layer.cornerRadius = 4.0f;
        _currentView.layer.shadowOffset = CGSizeZero;
        _currentView.layer.shadowRadius = 4.0f;
        _currentView.layer.shadowPath   = [UIBezierPath bezierPathWithRect:_currentView.bounds].CGPath;
    }
}
-(void)resetCurrentViewToRootViewController{
    if (_currentView!=_rootViewController.view) {
        CGRect frame = CGRectZero;
        CGAffineTransform transform = CGAffineTransformIdentity;
        if (!_currentView) {
            frame = _baseView.bounds;
        }else{
            frame=_currentView.frame;
            transform = _currentView.transform;
        }
        
        [_currentView removeFromSuperview];
        _currentView = _rootViewController.view;
        [_baseView addSubview:_currentView];
        _currentView.transform=transform;
        _currentView.frame = frame;
        if (_leftViewController.view.superview||_rightViewController.view.superview) {
            [_currentView addSubview:_coverButton];
            [self showShadow:_showBoundsShadow];
        }
        [_leftViewController.view addSubview:self.addBtnView];
    }
    
}

#pragma mark  ShowOrHideTheView
- (void)willShowLeftViewController{
    if (!_leftViewController || _leftViewController.view.superview) {
        return;
    }
    
    if (!_maskView) {
        self.maskView.hidden = YES;
    }
    
    if (snapCount == 1) {
        [_currentView addSubview:_maskView];
    }
    
//    if (isIOS7) {
//        _maskView.image = [self customSnapshotImageFromView:_currentView].image;
//    }else _maskView.backgroundColor = [UIColor colorWithHexString:@"0x3e3c3d"];
    /**
     * bug:5205(首页瀑布流，快速右滑无法进入订阅导航页)
     */
    
    _maskView.backgroundColor = [UIColor colorWithHexString:@"0x3e3c3d"];
    _leftViewController.view.frame= CGRectMake(-_leftViewShowWidth, 0, _leftViewShowWidth, CGRectGetHeight(_baseView.bounds));
    [_baseView addSubview:_leftViewController.view];
    //    [_baseView insertSubview:_leftViewController.view belowSubview:_currentView];
    if (_rightViewController && _rightViewController.view.superview) {
        [_rightViewController.view removeFromSuperview];
    }
}
- (void)willShowRightViewController{
    if (!_rightViewController || _rightViewController.view.superview) {
        return;
    }
    _rightViewController.view.frame=_baseView.bounds;
    [_baseView insertSubview:_rightViewController.view belowSubview:_currentView];
    if (_leftViewController && _leftViewController.view.superview) {
        [_leftViewController.view removeFromSuperview];
    }
}
- (void)showLeftViewController:(BOOL)animated{
    if (!_leftViewController) {
        return;
    }
    [MobClick event:@"15"];
    [self willShowLeftViewController];
    
    if (_maskView.hidden) {
        _maskView.hidden = NO;
        _maskView.alpha = 0.0f;
    }
    
    NSTimeInterval animatedTime=0;
    if (animated) {
        animatedTime = ABS(_leftViewShowWidth - _currentView.frame.origin.x) / _leftViewShowWidth * _animationDuration;
    }
    [UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
    [UIView animateWithDuration:animatedTime animations:^{
        [self layoutCurrentViewWithOffset:_leftViewShowWidth];
        [_currentView addSubview:_coverButton];
        [self showShadow:_showBoundsShadow];
    }completion:^(BOOL finished) {
        if ([self.delegate respondsToSelector:@selector(leftControllerDidShowed)]) {
            [self.delegate leftControllerDidShowed];
            
            if ([[TPUserDefault instance].helpArray[@"order"] intValue] == 0) {
                self.needSwipeShowMenu =NO;
                NSMutableDictionary *array = [NSMutableDictionary dictionaryWithDictionary:[TPUserDefault instance].helpArray];
                [array setObject:@"1" forKey:@"order"];
                [TPUserDefault instance].helpArray = array;
                self.orderHelpVC = [orderHelpController new];
                self.orderHelpVC.delegate =self;
                [self.view addSubview:self.orderHelpVC.view];
                [self.orderHelpVC.view makeConstraints:^(MASConstraintMaker *make) {
                    make.left.equalTo(self.view.left);
                    make.right.equalTo(self.view.right);
                    make.top.equalTo(self.view.top);
                    make.bottom.equalTo(self.view.bottom);
                }];
            }
            /**
             * bug:5392(【倒退】栏目导航页：首次进入时，“长按拖入订阅”字样返回首页依然会显示)
             */
        }
    }];
    
}

-(void)disHelp{
    [UIView animateWithDuration:0.3 animations:^{
        [self.orderHelpVC.view removeFromSuperview];
        
    }completion:^(BOOL finished) {
        self.orderHelpVC = nil;
        self.needSwipeShowMenu = YES;
    }];
}
- (void)showRightViewController:(BOOL)animated{
    if (!_rightViewController) {
        return;
    }
    [self willShowRightViewController];
    NSTimeInterval animatedTime = 0;
    if (animated) {
        animatedTime = ABS(_rightViewShowWidth + _currentView.frame.origin.x) / _rightViewShowWidth * _animationDuration;
    }
    [UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
    [UIView animateWithDuration:animatedTime animations:^{
        [self layoutCurrentViewWithOffset:-_rightViewShowWidth];
        [_currentView addSubview:_coverButton];
        [self showShadow:_showBoundsShadow];
    }];
}
- (void)hideSideViewController:(BOOL)animated{
    [self showShadow:false];
    NSTimeInterval animatedTime = 0;
    if (animated) {
        //        animatedTime = ABS(_currentView.frame.origin.x / (_currentView.frame.origin.x>0?_leftViewShowWidth:_rightViewShowWidth)) * _animationDuration;
        animatedTime = 0.3;
    }
    [UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
    [UIView animateWithDuration:animatedTime animations:^{
        [self layoutCurrentViewWithOffset:0];
    } completion:^(BOOL finished) {
        _maskView.hidden = YES;
        self.addBtnView.hidden = YES;
        [_coverButton removeFromSuperview];
        [_leftViewController.view removeFromSuperview];
        [_rightViewController.view removeFromSuperview];
    }];
}
- (void)hideSideViewController{
    [self hideSideViewController:true];
}

#pragma mark UIGestureRecognizerDelegate
- (BOOL)gestureRecognizerShouldBegin:(UIGestureRecognizer *)gestureRecognizer {
    // Check for horizontal pan gesture
    if (gestureRecognizer == _panGestureRecognizer) {
        UIPanGestureRecognizer *panGesture = (UIPanGestureRecognizer*)gestureRecognizer;
        CGPoint translation = [panGesture translationInView:_baseView];
        if ([panGesture velocityInView:_baseView].x < 600 && ABS(translation.x)/ABS(translation.y)>1) {
            return YES;
        }
        return NO;
    }
    return YES;
}

- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer {
    return YES;
}

- (void)swipe:(UISwipeGestureRecognizer*)gesture {
    [self showLeftViewController:YES];
}

- (void)pan:(UIPanGestureRecognizer*)pan{
    if (_panGestureRecognizer.state==UIGestureRecognizerStateBegan) {
        _startPanPoint=_currentView.frame.origin;
        if (_currentView.frame.origin.x==0) {
            [self showShadow:_showBoundsShadow];
        }
        [_currentView addSubview:_coverButton];
        /**
         * bug:5394( 栏目导航页：用手拖住向右滑动后，点击右侧空的地方无法返回，见图)
         */

        CGPoint velocity=[pan velocityInView:_baseView];
        if(velocity.x>0){
            _startPanPoint = CGPointMake(0, 0);
            if (_currentView.frame.origin.x>=0 && _leftViewController && !_leftViewController.view.superview) {
                [self willShowLeftViewController];
            }
        }else if (velocity.x<0) {
            _startPanPoint = CGPointMake(_leftViewShowWidth, 0);
            if (_currentView.frame.origin.x<=0 && _rightViewController && !_rightViewController.view.superview) {
                [self willShowRightViewController];
            }
        }
        return;
    }
    
    CGPoint currentPostion = [pan translationInView:_baseView];
    CGFloat xoffset = _startPanPoint.x + currentPostion.x;
    if (xoffset>0) {//向右滑
        if (_maskView.hidden) {
            _maskView.hidden = NO;
            _maskView.alpha = 0.0f;
        }
        
        if (currentPostion.x>0 && self.leftViewController.view.frame.origin.x == 0) {
            return;
        }
        
        if (_leftViewController && _leftViewController.view.superview) {
            xoffset = xoffset>_leftViewShowWidth?_leftViewShowWidth:xoffset;
        }else{
            xoffset = 0;
        }
    }else if(xoffset<0){//向左滑
        if (_rightViewController && _rightViewController.view.superview) {
            xoffset = xoffset<-_rightViewShowWidth?-_rightViewShowWidth:xoffset;
        }else {
            xoffset = xoffset;
        }
    }
    [self layoutCurrentViewWithOffset:xoffset];
    if (_panGestureRecognizer.state==UIGestureRecognizerStateEnded) {
        if (_currentView.frame.origin.x==0) {
            [self showShadow:false];
        }
        
        if (_panMovingRightOrLeft && _leftViewController.view.frame.origin.x > -_leftViewShowWidth*2/3) {
            [self showLeftViewController:true];
        }else if(!_panMovingRightOrLeft && _currentView.frame.origin.x<-20){
            [self showRightViewController:true];
        }else{
            [self hideSideViewController];
        }
        
        _lastPanPoint = CGPointZero;
    }else{
        CGPoint velocity = [pan velocityInView:_baseView];
        if (velocity.x>0) {
            _panMovingRightOrLeft = true;
        }else if(velocity.x<0){
            _panMovingRightOrLeft = false;
        }
    }
}

//重写此方法可以改变动画效果,PS._currentView就是RootViewController.view
- (void)layoutCurrentViewWithOffset:(CGFloat)xoffset {
    
    self.addBtnView.hidden = NO;
    [_currentView bringSubviewToFront:self.addBtnView];
    
    if (_showBoundsShadow) {
        _currentView.layer.shadowPath = [UIBezierPath bezierPathWithRect:_currentView.bounds].CGPath;
    }
    
    if (self.rootViewMoveBlock) {//如果有自定义动画，使用自定义的效果
        self.rootViewMoveBlock(_currentView,_baseView.bounds,xoffset);
        //        return;
    }
    
    //平移的动画
    [_currentView setFrame:CGRectMake(0, _baseView.bounds.origin.y, _baseView.frame.size.width, _baseView.frame.size.height)];
    CGRect leftRect = self.leftViewController.view.frame;
    [self.leftViewController.view setFrame:CGRectMake(xoffset-_leftViewShowWidth, leftRect.origin.y, leftRect.size.width, leftRect.size.height)];
    
    if (xoffset == 0) {
        _maskView.alpha = 0.0f;
    }else {
        _maskView.alpha = 0.98 * xoffset/_leftViewShowWidth;
    }
    
    [_currentView bringSubviewToFront:_coverButton];
    /**
     * bug:5394( 栏目导航页：用手拖住向右滑动后，点击右侧空的地方无法返回，见图)
     */
    
    CGAffineTransform at =CGAffineTransformMakeRotation(M_PI/4*_maskView.alpha);
    [self.addBtnView setTransform:at];
    
    
//    TPLOG(@"%f",xoffset);
    
    return;
}

- (UIImageView*)customSnapshotImageFromView:(UIView*)inputView {
    UIGraphicsBeginImageContextWithOptions(inputView.bounds.size, YES, 1);
    [inputView.layer renderInContext:UIGraphicsGetCurrentContext()];
    UIImage *viewImage = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();
    
    UIImageView *imageView = [[UIImageView alloc]initWithImage:[viewImage applyDarkEffect]];
    return imageView;
}

- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex {
    if (buttonIndex == 0) {
        [MobClick event:@"41"];
        NSString *str = [NSString stringWithFormat:@"http://itunes.apple.com/WebObjects/MZStore.woa/wa/viewContentsUserReviews?id=%@&pageNumber=0&sortOrdering=2&type=Purple+Software&mt=8",@"878962716" ];
        [[UIApplication sharedApplication] openURL:[NSURL URLWithString:str]];
    }
    else
        [MobClick event:@"42"];
}

#pragma mark - shouldAutorotate
- (UIStatusBarStyle)preferredStatusBarStyle {
    if ([[TPUserDefault instance].isNightMode intValue] == 1) {
        return UIStatusBarStyleLightContent;
    }else {
        return UIStatusBarStyleDefault;
    }
}

- (BOOL)shouldAutorotate {
    return YES;
    
}

- (NSUInteger)supportedInterfaceOrientations {
    return UIInterfaceOrientationMaskPortrait;
    
}

- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation {
    return UIInterfaceOrientationPortrait;
}

@end