//
//  SPSBKeyboardManager.m
//  我的社保
//
//  Created by shanp on 2021/4/25.
//

#import "SPSBKeyboardManager.h"
#import <JXHMacro.h>
#import <JXHSystemShortcut.h>
#import <objc/runtime.h>
#import "SPSBTextField.h"
#import <JXHGeneralTools.h>
#import "SPSBGeneralManager.h"

@interface SPSBKeyboardManager () {
    UIToolbar *_toolbar;
    SPSBTextField *_textField;
}

@end

@implementation SPSBKeyboardManager

+ (instancetype)alloc {
    NSAssert(![self isMemberOfClass:[SPSBKeyboardManager class]], @"SPSBKeyboardManager is singleton, you should not instantiate it directly.");
    return [super alloc];
}

+ (SPSBKeyboardManager *)shareManager {
    static SPSBKeyboardManager *manager = nil;
    static dispatch_once_t once;
    dispatch_once(&once, ^{
        manager = [[super allocWithZone:nil] init];
        [manager addKeyboardTool];
    });
    
    return manager;
}

+ (instancetype)allocWithZone:(struct _NSZone *)zone {
    return [self shareManager];
}

- (void)addKeyboardTool {
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillChangeFrame:) name:UIKeyboardWillChangeFrameNotification object:nil];
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillShow:) name:UITextFieldTextDidBeginEditingNotification object:nil];
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillShow:) name:UITextViewTextDidBeginEditingNotification object:nil];
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(textFieldDidChange:) name:UITextFieldTextDidChangeNotification object:nil];
    _toolbar = [[UIToolbar alloc] initWithFrame:CGRectMake(0, jxh_screenHeight(), jxh_screenWidth(), 44)];
    _toolbar.items = @[[[UIBarButtonItem alloc]initWithBarButtonSystemItem: UIBarButtonSystemItemFlexibleSpace target:nil action:nil], [[UIBarButtonItem alloc] initWithTitle:@"完成" style:UIBarButtonItemStylePlain target:self action:@selector(HiddenKeyBoard)]];
    
    _textField = [[SPSBTextField alloc] initWithFrame:CGRectMake(15, 0, jxh_screenWidth() * 2 / 3, 44)];
    _textField.enabled = false;
    [_toolbar addSubview:_textField];
}

- (void)removeKeyboardTool {
    [[NSNotificationCenter defaultCenter] removeObserver:self name:UIKeyboardWillChangeFrameNotification object:nil];
    [[NSNotificationCenter defaultCenter] removeObserver:self name:UITextFieldTextDidBeginEditingNotification object:nil];
    [[NSNotificationCenter defaultCenter] removeObserver:self name:UITextViewTextDidBeginEditingNotification object:nil];
    [[NSNotificationCenter defaultCenter] removeObserver:self name:UITextFieldTextDidChangeNotification object:nil];
    _toolbar = nil;
    _textField = nil;
}

- (void)keyboardWillShow:(NSNotification *)sender {
    UIViewController *vc = jxh_findPresentedViewControllerStartingFrom(spsb_keyWindow().rootViewController);
    if (![NSStringFromClass([vc class]) hasPrefix:@"SPSB"]) return;
    debugLog(@"-----------%@", sender.userInfo);
    id firstResponder;
    for (UIWindow *window in jxh_application().windows) {
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Warc-performSelector-leaks"
    SEL f = NSSelectorFromString([NSString stringWithFormat:@"%@%@", @"first", @"Responder"]);
    firstResponder = [window performSelector:f];
#pragma clang diagnostic pop
        if (firstResponder) {
            break;
        }
    }
    if ([firstResponder isKindOfClass:[UITextField class]]) {
        UITextField *_firstResponder = firstResponder;
        objc_setAssociatedObject(_firstResponder, &kKeyboardKey, _textField, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
        _textField.placeholder = _firstResponder.placeholder;
        _textField.text = _firstResponder.text;
        _textField.secureTextEntry = _firstResponder.secureTextEntry;
        if ([firstResponder isKindOfClass:[SPSBTextField class]]) {
            _textField.spsb_maxCount = ((SPSBTextField *)_firstResponder).spsb_maxCount;
        } else {
            _textField.spsb_maxCount = 0;
        }
        if (_firstResponder.inputAccessoryView) {
            _firstResponder.inputAccessoryView = nil;
        }
        _firstResponder.inputAccessoryView = _toolbar;
        [_firstResponder reloadInputViews];
    } else if ([firstResponder isKindOfClass:[UITextView class]]) {
        UITextView *_firstResponder = firstResponder;
        _textField.placeholder = @"";
        _textField.text = @"";
        if (_firstResponder.inputAccessoryView) {
            _firstResponder.inputAccessoryView = nil;
        }
        _firstResponder.inputAccessoryView = _toolbar;
        [_firstResponder reloadInputViews];
    }
}

static char kKeyboardKey;

- (void)keyboardWillChangeFrame:(NSNotification *)sender {
    UIViewController *vc = jxh_findPresentedViewControllerStartingFrom(spsb_keyWindow().rootViewController);
    if (![NSStringFromClass([vc class]) hasPrefix:@"SPSB"]) return;
    debugLog(@"======================%@", sender.userInfo);
    id firstResponder;
    for (UIWindow *window in jxh_application().windows) {
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Warc-performSelector-leaks"
    SEL f = NSSelectorFromString([NSString stringWithFormat:@"%@%@", @"first", @"Responder"]);
    firstResponder = [window performSelector:f];
#pragma clang diagnostic pop
        if (firstResponder) {
            break;
        }
    }
    if ([firstResponder isKindOfClass:[UITextField class]]) {
        UITextField *_firstResponder = firstResponder;
        debugLog(@"%@", _firstResponder);
        CGFloat keyboardY = [sender.userInfo[UIKeyboardFrameEndUserInfoKey] CGRectValue].origin.y;
        if (keyboardY == jxh_screenHeight()) {
            _firstResponder.inputAccessoryView = nil;
        }
    } else if ([firstResponder isKindOfClass:[UITextView class]]) {
        UITextView *_firstResponder = firstResponder;
        debugLog(@"%@", _firstResponder);
        CGFloat keyboardY = [sender.userInfo[UIKeyboardFrameEndUserInfoKey] CGRectValue].origin.y;
        if (keyboardY == jxh_screenHeight()) {
            _firstResponder.inputAccessoryView = nil;
        }
    }
    
}

- (void)textFieldDidChange:(NSNotification *)sender {
    debugLog(@"_____________%@", sender);
    UITextField *textField = sender.object;
    SPSBTextField *textField1 = objc_getAssociatedObject(textField, &kKeyboardKey);
    textField1.text = textField.text;
    [textField1 textDidChange];
}

- (void)HiddenKeyBoard {
    UIViewController *vc = jxh_findPresentedViewControllerStartingFrom(spsb_keyWindow().rootViewController);
    if (![NSStringFromClass([vc class]) hasPrefix:@"SPSB"]) return;
    id firstResponder;
    for (UIWindow *window in jxh_application().windows) {
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Warc-performSelector-leaks"
    SEL f = NSSelectorFromString([NSString stringWithFormat:@"%@%@", @"first", @"Responder"]);
    firstResponder = [window performSelector:f];
#pragma clang diagnostic pop
        if (firstResponder) {
            [window endEditing:true];
            break;
        }
    }
}

- (void)dealloc {
    [self removeKeyboardTool];
}

@end