//
//  NoteViewController.m
//  LMNoteDemo
//
//  Created by littleMeaning on 2018/1/10.
//  Copyright © 2018年 littleMeaning. All rights reserved.
//

#import "LMNoteViewController.h"
#import "LMNTextView.h"
#import "LMNToolBar.h"
#import "UIFont+LMNote.h"
#import "LMNStore.h"
#import "LMNDraft.h"
#import "LMNImageView.h"
#import "LMNImageInputViewController.h"
#import "TestClass-Swift.h"
#import <SDWebImage/SDWebImage.h>
#import "TFHpple.h"

// 屏幕宽度
#define SCREEN_WIDTH [UIScreen mainScreen].bounds.size.width
// 屏幕高度
#define SCREEN_HEIGHT [UIScreen mainScreen].bounds.size.height

#define NavHeight (KISIphoneX ? 88 : 64)
#define KISIphoneX (CGSizeEqualToSize(CGSizeMake(375.f, 812.f), [UIScreen mainScreen].bounds.size) || CGSizeEqualToSize(CGSizeMake(812.f, 375.f), [UIScreen mainScreen].bounds.size))

#define BOUNSNavHeight CGRectMake(0, NavHeight, SCREEN_WIDTH, SCREEN_HEIGHT - NavHeight)
#define BOUNS self.view.bounds

@interface LMNoteViewController () <UITextViewDelegate, LMNToolBarDelegate, LMNImageInputViewControllerDelegate>

@property (nonatomic, strong) LMNTextView *textView;
@property (nonatomic, strong) LMNToolBar *toolBar;
@property (nonatomic, strong) UIButton *editButton;

@property (nonatomic, strong) LMNImageInputViewController *imageInputViewController;
@property (nonatomic, weak) UIViewController *currentInputController;
@property (nonatomic, assign) NSInteger cursorIndex;

@property (nonatomic, assign) CGFloat keyboardHeight;
@property (nonatomic, strong) NSMutableArray *imgIndexArr;
@property (nonatomic, strong) NSMutableArray *imgUrlArr;

@end

@implementation LMNoteViewController

- (instancetype)initWithDraft:(LMNDraft *)draft
{
    self = [super init];
    if (self) {
        _draft = draft;
    }
    return self;
}

- (void)loadSubviews
{
    self.textView = ({
        LMNTextView *textView = [[LMNTextView alloc] initWithTextStorage:self.draft.textStorage];
        textView.backgroundColor = [UIColor whiteColor];
        textView.spellCheckingType = UITextSpellCheckingTypeNo;
        textView.textColor = [UIColor colorWithRed:68/255.0 green:68/255.0 blue:68/255.0 alpha:1.0];
        textView.delegate = self;
        textView.imgArr = [NSMutableArray arrayWithCapacity:10];
        textView;
    });
    [self.view addSubview:self.textView];
    NSLog(@"old=\n%@",self.draft.textStorage);

    self.editButton = ({
        UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
        [button setImage:[UIImage imageNamed:@"lmn_btn_edit"] forState:UIControlStateNormal];
        button.backgroundColor = [UIColor colorWithWhite:.5f alpha:.75f];
        button.clipsToBounds = YES;
        [button addTarget:self action:@selector(showToolBar:) forControlEvents:UIControlEventTouchUpInside];
        button;
    });
    [self.view addSubview:self.editButton];
    
    
    
    self.toolBar = ({
        LMNToolBar *toolBar = [LMNToolBar toolBar];
        toolBar.delegate = self;
        toolBar.hidden = YES;
        toolBar;
    });
    [self.view addSubview:self.toolBar];
}
 
- (void)viewDidLoad
{
    [super viewDidLoad];
    self.view.backgroundColor = [UIColor whiteColor];
    
    [self loadSubviews];
    
    self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"保存" style:UIBarButtonItemStylePlain target:self action:@selector(export)];
    [self.navigationItem.rightBarButtonItem setTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys:[UIFont boldSystemFontOfSize:14],NSFontAttributeName, nil] forState:UIControlStateNormal];

    
    self.navigationItem.title = @"编辑商品详情";
    
    UIView *containerView = [UIView new];
    containerView.frame = (CGRect){.size = CGSizeMake(34, 30)}; // 系统BarButtonItem大小(34, 30)
    UIButton *button1 = [UIButton buttonWithType:UIButtonTypeCustom];
    button1.frame = (CGRect){.size = CGSizeMake(34, 30)};
    [button1 addTarget:self action:@selector(outVC) forControlEvents:UIControlEventTouchUpInside];
    [containerView addSubview:button1];

    UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
    button.frame = CGRectMake(0, 5, 10, 17);
    [button setBackgroundImage:[UIImage imageNamed:@"fanhui"] forState:UIControlStateNormal];
    [button addTarget:self action:@selector(outVC) forControlEvents:UIControlEventTouchUpInside];
    [containerView addSubview:button];

    self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:containerView];
    
 
//        self.textView.text = @"ugh\nCccc\nThe new kJt";
//        [self.textView updateExclusionPaths];
//        [self.textView insertImage:[UIImage imageNamed:@"banner"] atIndex:4];
//        [self.textView insertImage:[UIImage imageNamed:@"banner"] atIndex:9];
 
}
- (void)setHtmlStr:(NSString *)htmlStr {
    _htmlStr = htmlStr;
}
- (void)outVC {
    NSLog(@"outvc====outvc");
    [self.navigationController popViewControllerAnimated:YES];
//   [self.textView insertImage:[UIImage imageNamed:@"lmn_tool_image"] atIndex:self.cursorIndex];
//    self.textView.text = @"ugh\nCccc\nThe new kJt";
//    [self.textView updateExclusionPaths];
//    [self.textView insertImage:[UIImage imageNamed:@"banner"] atIndex:4];
//    [self.textView insertImage:[UIImage imageNamed:@"banner"] atIndex:9];
}
- (void)layoutTextView
{
    CGFloat toolbarHeight = 44.f;
    self.textView.frame = BOUNS;
    self.toolBar.frame = ({
        CGRect rect = BOUNS;
        rect.size.height = toolbarHeight;
        rect.origin.y = CGRectGetHeight(BOUNS) - CGRectGetHeight(rect) - self.keyboardHeight;
        rect;
    });
    UIEdgeInsets insets = self.textView.contentInset;
    insets.bottom = self.keyboardHeight + 10.f;
    if (self.toolBar.hidden == NO) {
        insets.bottom += toolbarHeight;
    }
    self.textView.contentInset = insets;
    self.textView.textColor  = [UIColor colorWithRed:68/255.0 green:68/255.0 blue:68/255.0 alpha:1.0];

}

- (void)viewDidLayoutSubviews
{
    [super viewDidLayoutSubviews];
    [self layoutTextView];
    
    self.editButton.frame = ({
        CGRect rect = CGRectZero;
        rect.size = CGSizeMake(50.f, 50.f);
        rect.origin.x = CGRectGetWidth(BOUNS) - 50.f - 20.f;
        rect.origin.y = CGRectGetHeight(BOUNS) - 50.f - 20.f - self.keyboardHeight;
        rect;
    });
    self.editButton.layer.cornerRadius = 25.f;
    
    self.toolBar.frame = ({
        CGRect rect = BOUNS;
        rect.origin.y = CGRectGetHeight(rect) - 44.f - self.keyboardHeight;
        rect.size.height = 44.f;
        rect;
    });
    
    //展示旧数据
    if (_htmlStr.length > 0) {
        NSString *content = [self getStingByData:_htmlStr];
        self.textView.text = content;
        [self.textView updateExclusionPaths];

        for (int i = 0; i < self.imgIndexArr.count ; i++) {
            NSString *indexStr = self.imgIndexArr[i];
            LMNImageView *imageView =  [self.textView insertImage:[UIImage imageNamed:@"lmn_tool_image"] atIndex:indexStr.integerValue];
            NSLog(@"图片index==%@",indexStr);
            NSString *url = self.imgUrlArr[i];
            [self.textView.imgArr addObject:url];
            imageView.imageUrl = url;
        }
        _htmlStr = @"";
    }
//    [self.textView insertImage:[UIImage imageNamed:@"banner"] atIndex:0];
//    [self.textView insertImage:[UIImage imageNamed:@"banner"] atIndex:1];
//    [self.textView insertImage:[UIImage imageNamed:@"banner"] atIndex:2];
//    [self.textView insertImage:[UIImage imageNamed:@"banner"] atIndex:3];
//    [self.textView insertImage:[UIImage imageNamed:@"banner"] atIndex:4];
//    [self.textView insertImage:[UIImage imageNamed:@"banner"] atIndex:5];
}

- (void)viewWillAppear:(BOOL)animated
{
    [super viewWillAppear:animated];
    [self.navigationController.navigationBar setHidden:NO];
    [self addObservers];
}

- (void)viewWillDisappear:(BOOL)animated
{
    [super viewWillDisappear:animated];
    [self removeObservers];
    [self saveDraft];
}

- (void)addObservers
{
    [[NSNotificationCenter defaultCenter] addObserver:self
                                             selector:@selector(keyboardWillShow:)
                                                 name:UIKeyboardWillShowNotification
                                               object:nil];
    [[NSNotificationCenter defaultCenter] addObserver:self
                                             selector:@selector(keyboardWillHide:)
                                                 name:UIKeyboardWillHideNotification
                                               object:nil];
}

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

- (void)saveDraft
{
    __block NSString *firstLine = nil;
    NSCharacterSet *characterSet = [NSCharacterSet whitespaceCharacterSet];
    [self.textView.text enumerateLinesUsingBlock:^(NSString * _Nonnull line, BOOL * _Nonnull stop) {
        line = [line stringByTrimmingCharactersInSet:characterSet];
        if (line.length > 0) {
            firstLine = line;
            *stop = YES;
        }
    }];
    if (firstLine.length > 0) {
        self.draft.name = firstLine;
        self.draft.textStorage = (LMNTextStorage *)self.textView.textStorage;
        NSLog(@"last=\n%@",self.textView.textStorage);
        
        [self.draft save];
    }
    else {
        [self.draft delete];
    }
}

- (void)export
{
 
    [self.textView exportHTML:^(BOOL succeed, NSString *html) {
        NSLog(@"html:\n%@",  [NSString stringWithFormat:@"<html>%@</html>",html]);
        if (self.delegatedata && [self.delegatedata respondsToSelector:@selector(getHTMLByVc:)]) {
            [self.delegatedata getHTMLByVc:html];
            [self.navigationController popViewControllerAnimated:YES];
        }
        

    }];
}
- (NSString *)getStingByData:(NSString *)htmlString {
    // 将html字符串转为NSData
    NSString *content = @"";
    self.imgIndexArr = [NSMutableArray arrayWithCapacity:10];
    self.imgUrlArr = [NSMutableArray arrayWithCapacity:10];
    NSData *data = [htmlString dataUsingEncoding:NSUTF8StringEncoding];
    // 创建Hpple对象
    TFHpple * doc = [[TFHpple alloc] initWithHTMLData:data];
    // 搜索XPath寻找标签
    NSArray *elements  = [doc searchWithXPathQuery:@"//p"];
    
    for (TFHppleElement * element in elements) {
        NSLog(@"content：%@" , [element content]);
        if (content.length == 0) {
            content = [element content];
        }else{
            NSString *tempC = [element content];
            
            if (tempC.length > 0) {
                content = [NSString stringWithFormat:@"%@\n%@",content,[element content]];
            }
        }
        
        NSString *tempContent = [element content];
        if (tempContent.length == 0 && self.imgIndexArr.count != 0) {
            content = [NSString stringWithFormat:@"%@\n",content];
        }

        TFHppleElement *imgDic = [element firstChildWithTagName:@"img"];
        if (imgDic) {
            NSString *src = [[imgDic attributes]objectForKey:@"src"];
            NSLog(@"src：%@", src);
            if (content.length == 0) {
                if (self.imgIndexArr.count == 0) {
                    [self.imgIndexArr addObject:@"0"];

                }else{
                    NSString *index = [NSString stringWithFormat:@"%ld",(content.length + self.imgIndexArr.count)];

                    [self.imgIndexArr addObject:index];
                }

            }else{
                NSString *index = [NSString stringWithFormat:@"%ld",(content.length + self.imgIndexArr.count)];
                [self.imgIndexArr addObject:index];
            }
            
                            NSString *imgSrc = @"https://c.gelifood.com/";
//            NSString *imgSrc = @"https://cms.gelifood.com/";
            NSString *imgurl = [src stringByReplacingOccurrencesOfString:imgSrc withString:@""];
            [self.imgUrlArr addObject:imgurl];
        }
    }
    return content;
}
#pragma mark - input

- (LMNImageInputViewController *)imageInputViewController
{
    if (!_imageInputViewController) {
        _imageInputViewController = [[LMNImageInputViewController alloc] init];
        _imageInputViewController.delegate = self;
    }
    return _imageInputViewController;
}

- (void)changeTextInputForTag:(LMNToolBarItemTag)tag
{
    UIViewController *inputViewController = nil;
    switch (tag) {
        case LMNToolBarItemTagImage:
            inputViewController = self.imageInputViewController;
            self.cursorIndex = NSMaxRange(self.textView.selectedRange);
            break;
        default:
            break;
    }
    if (inputViewController && self.currentInputController != inputViewController) {
        CGRect rect = BOUNS;
        rect.size.height = 400.f;
        rect.origin.y = CGRectGetHeight(BOUNS) - CGRectGetHeight(rect);
        inputViewController.view.frame = rect;
    }
    self.currentInputController = inputViewController;
    
    [self.textView resignFirstResponder];
}

#pragma mark - private

- (void)showToolBar:(UIButton *)button
{
    self.editButton.hidden = YES;
    self.toolBar.hidden = NO;
    [self.textView becomeFirstResponder];
}

- (void)reloadToolBar
{
    NSMutableDictionary *attributes = [self.textView.typingAttributes mutableCopy];
    LMNLineMode mode = [self.textView lineModeForRange:self.textView.selectedRange];
    NSString *selectedStr = [self.textView.text substringWithRange:self.textView.selectedRange];
    BOOL isMultiLine = [selectedStr containsString:@"\n"];
    [self.toolBar reloadDataWithTypingAttributes:attributes mode:mode isMultiLine:isMultiLine];
}

- (void)showInputView
{
    CGRect rect = self.currentInputController.view.frame;
    [self.view addSubview:self.currentInputController.view];
    self.currentInputController.view.frame = CGRectOffset(rect, 0, CGRectGetHeight(rect));
    [UIView animateWithDuration:0.3 animations:^{
        self.currentInputController.view.frame = rect;
    }];
}

- (void)hideInputView
{
    if (self.currentInputController) {
        [UIView animateWithDuration:0.3 animations:^{
            CGRect rect = self.currentInputController.view.frame;
            self.currentInputController.view.frame = CGRectOffset(rect, 0, CGRectGetHeight(rect));
        } completion:^(BOOL finished) {
            [self.currentInputController.view removeFromSuperview];
            self.currentInputController = nil;
        }];
    }
    [self.view setNeedsLayout];
}

#pragma mark - Keyboard

- (void)keyboardWillShow:(NSNotification *)notification
{
    NSDictionary *info = [notification userInfo];
    CGSize keyboardSize = [[info objectForKey:UIKeyboardFrameEndUserInfoKey] CGRectValue].size;
    if (self.keyboardHeight == keyboardSize.height) {
        return;
    }
    self.keyboardHeight = keyboardSize.height;
    [UIView animateWithDuration:0.3 delay:0 options:UIViewAnimationOptionBeginFromCurrentState animations:^{
        [self layoutTextView];
    } completion:nil];
}

- (void)keyboardWillHide:(NSNotification *)notification
{
    if (self.keyboardHeight == 0) {
        return;
    }
    self.keyboardHeight = 0;
    [UIView animateWithDuration:0.3 delay:0 options:UIViewAnimationOptionBeginFromCurrentState animations:^{
        [self layoutTextView];
    } completion:nil];
}

#pragma mark - <UITextViewDelegate>

- (void)textViewDidBeginEditing:(UITextView *)textView
{
    self.editButton.hidden = YES;
    self.toolBar.hidden = NO;
    [self hideInputView];
}

- (void)textViewDidEndEditing:(UITextView *)textView
{
    self.toolBar.hidden = YES;
    if (self.currentInputController) {
        [self showInputView];
    }
    else {
        self.editButton.hidden = NO;
    }
    [self.view setNeedsLayout];
}

- (void)textViewDidChangeSelection:(UITextView *)textView
{
    [self reloadToolBar];
}

#pragma mark - <LMNToolBarDelegate>

- (void)lmn_toolBar:(LMNToolBar *)toolBar didChangedMode:(LMNLineMode)mode
{
    [self.textView setLineMode:mode forRange:self.textView.selectedRange];
    [self reloadToolBar];
}

- (void)lmn_toolBar:(LMNToolBar *)toolBar didChangedAttributes:(NSDictionary *)attributes
{
    BOOL bold = [attributes[LMFontBoldAttributeName] boolValue];
    BOOL italic = [attributes[LMFontItalicAttributeName] boolValue];
    BOOL underline = [attributes[LMFontUnderlineAttributeName] boolValue];
    BOOL strikethrough = [attributes[LMFontStrikethroughAttributeName] boolValue];
    
    NSMutableDictionary *typingAttributes = [self.textView.typingAttributes mutableCopy];
    UIFont *font = typingAttributes[NSFontAttributeName];
    typingAttributes[NSFontAttributeName] = [UIFont fontWithFontSize:font.fontSize bold:bold italic:italic];
    if (underline) {
        typingAttributes[NSUnderlineStyleAttributeName] = @(NSUnderlineStyleSingle);
    }
    else {
        [typingAttributes removeObjectForKey:NSUnderlineStyleAttributeName];
    }
    if (strikethrough) {
        typingAttributes[NSStrikethroughStyleAttributeName] = @(1);
    }
    else {
        [typingAttributes removeObjectForKey:NSStrikethroughStyleAttributeName];
    }
    self.textView.typingAttributes = typingAttributes;
    [self.textView setAttributesForSelection:typingAttributes];
}

- (void)lmn_toolBar:(LMNToolBar *)toolBar didChangedTextAlignment:(NSTextAlignment)alignment
{
    [self.textView setTextAlignmentForSelection:alignment];
}

- (void)lmn_toolBar:(LMNToolBar *)toolBar didSelectedItemWithTag:(LMNToolBarItemTag)tag
{
    [self changeTextInputForTag:tag];
}

- (void)lmn_toolBarClose:(LMNToolBar *)toolBar
{
    self.editButton.hidden = NO;
    self.toolBar.hidden = YES;
    [self.textView resignFirstResponder];
}

#pragma mark - <LMNImageInputViewControllerDelegate>
#pragma mark -- 插入图片

- (void)lmn_imageInput:(LMNImageInputViewController *)viewController didSelectPHAsset:(PHAsset *)asset
{
    [self hideInputView];
    self.editButton.hidden = NO;

    CGFloat imageWidth = CGRectGetWidth([UIScreen mainScreen].bounds) - 40.f;
    CGSize targetSize = CGSizeMake(imageWidth, imageWidth);
    PHImageRequestOptions *options = [[PHImageRequestOptions alloc] init];
    options.synchronous = YES;
    options.networkAccessAllowed = YES;
    __block LMNImageView *imageView = nil;
    [[PHImageManager defaultManager] requestImageForAsset:asset targetSize:targetSize contentMode:PHImageContentModeAspectFill options:options resultHandler:^(UIImage *result, NSDictionary *info) {
 
        //请求上传图片
        TestClass *model = [[TestClass alloc]init];
        NSMutableDictionary *dict = [NSMutableDictionary dictionaryWithCapacity:10];
        [dict setValue:@"RQdwz5QKpeg=" forKey:@"user_token"];
        [model saveFileWithImage:result params:dict success:^(NSDictionary<NSString *,id> * data) {
            if ([[NSString stringWithFormat:@"%@",data[@"code"]]isEqualToString:@"1"]) {
                
                if (!imageView) {
//                    imageView = [self.textView insertImage:result atIndex:self.cursorIndex];
                    imageView = [self.textView insertImage:[UIImage imageNamed:@"lmn_tool_image"] atIndex:self.cursorIndex];
                    NSLog(@"原图片indexd===%ld",self.cursorIndex);

                }
                else {
                    imageView.image = result;
                }
                NSDictionary *dataDic = data[@"data"];
                NSString *url = dataDic[@"url"];
                [self.textView.imgArr addObject:url];
                imageView.imageUrl = url;
            }

        } failture:^(NSError * error) {

        }];
    }];
}
 
- (void)lmn_imageInputClose:(LMNImageInputViewController *)viewController
{
    [self hideInputView];
    self.editButton.hidden = NO;
}

@end