//
//  KBAICommentInputView.m
//  keyBoard
//
//  Created by Mac on 2026/1/16.
//

#import "KBAICommentInputView.h"
#import <Masonry/Masonry.h>

@interface KBAICommentInputView () <UITextFieldDelegate>

@property(nonatomic, strong) UIView *containerView;
//@property(nonatomic, strong) UIImageView *avatarImageView;
@property(nonatomic, strong) UITextField *textField;
@property(nonatomic, strong) UILabel *placeholderLabel;
@property(nonatomic, strong) UIButton *sendButton;
@property(nonatomic, strong) UIView *topLine;

@end

@implementation KBAICommentInputView

- (instancetype)initWithFrame:(CGRect)frame {
  self = [super initWithFrame:frame];
  if (self) {
    [self setupUI];
  }
  return self;
}

#pragma mark - UI Setup

- (void)setupUI {
    self.backgroundColor = [UIColor colorWithHex:0x797979 alpha:0.49];

  [self addSubview:self.topLine];
//  [self addSubview:self.avatarImageView];
  [self addSubview:self.containerView];
  [self.containerView addSubview:self.textField];
  [self addSubview:self.placeholderLabel];
  [self addSubview:self.sendButton];

  [self.topLine mas_makeConstraints:^(MASConstraintMaker *make) {
    make.left.right.top.equalTo(self);
    make.height.mas_equalTo(0.5);
  }];

//  [self.avatarImageView mas_makeConstraints:^(MASConstraintMaker *make) {
//    make.left.equalTo(self).offset(12);
//    make.centerY.equalTo(self);
//    make.width.height.mas_equalTo(32);
//  }];

  [self.containerView mas_makeConstraints:^(MASConstraintMaker *make) {
    make.left.equalTo(self).offset(12);
    make.right.equalTo(self.sendButton.mas_left).offset(-12);
    make.centerY.equalTo(self);
    make.height.mas_equalTo(52);
  }];

  [self.textField mas_makeConstraints:^(MASConstraintMaker *make) {
    make.left.equalTo(self.containerView).offset(12);
    make.right.equalTo(self.containerView).offset(-12);
    make.centerY.equalTo(self.containerView);
  }];

  [self.sendButton mas_makeConstraints:^(MASConstraintMaker *make) {
    make.right.equalTo(self).offset(-12);
    make.centerY.equalTo(self);
    make.width.mas_equalTo(50);
    make.height.mas_equalTo(30);
  }];
  
  [self.placeholderLabel mas_makeConstraints:^(MASConstraintMaker *make) {
    make.center.equalTo(self);
  }];
}

#pragma mark - Public Methods

- (void)setPlaceholder:(NSString *)placeholder {
  _placeholder = placeholder;
  self.placeholderLabel.text = placeholder;
  [self updatePlaceholderVisibility];
}

- (void)clearText {
  self.textField.text = @"";
  [self updatePlaceholderVisibility];
  [self updateSendButtonState];
}

- (void)showKeyboard {
  [self.textField becomeFirstResponder];
}

#pragma mark - Actions

- (void)sendButtonTapped {
  NSString *text = self.textField.text;
  if (text.length > 0 && self.onSend) {
    self.onSend(text);
  }
}

- (void)textFieldDidChange:(UITextField *)textField {
  [self updatePlaceholderVisibility];
  [self updateSendButtonState];
}

- (void)updateSendButtonState {
  BOOL hasText = self.textField.text.length > 0;
  self.sendButton.enabled = hasText;
//  self.sendButton.alpha = hasText ? 1.0 : 0.5;
}

#pragma mark - UITextFieldDelegate

- (BOOL)textFieldShouldReturn:(UITextField *)textField {
  [self sendButtonTapped];
  return YES;
}

- (BOOL)textFieldShouldBeginEditing:(UITextField *)textField {
  [self updatePlaceholderVisibility];
  return YES;
}

- (void)textFieldDidEndEditing:(UITextField *)textField {
  [self updatePlaceholderVisibility];
}

#pragma mark - Lazy Loading

- (UIView *)topLine {
  if (!_topLine) {
    _topLine = [[UIView alloc] init];
    _topLine.backgroundColor = [UIColor separatorColor];
  }
  return _topLine;
}

//- (UIImageView *)avatarImageView {
//  if (!_avatarImageView) {
//    _avatarImageView = [[UIImageView alloc] init];
//    _avatarImageView.contentMode = UIViewContentModeScaleAspectFill;
//    _avatarImageView.layer.cornerRadius = 16;
//    _avatarImageView.layer.masksToBounds = YES;
//    _avatarImageView.backgroundColor = [UIColor systemGray5Color];
//    _avatarImageView.image = [UIImage systemImageNamed:@"person.circle.fill"];
//    _avatarImageView.tintColor = [UIColor systemGray3Color];
//  }
//  return _avatarImageView;
//}

- (UIView *)containerView {
  if (!_containerView) {
    _containerView = [[UIView alloc] init];
//    _containerView.layer.cornerRadius = 26;
//    _containerView.layer.masksToBounds = YES;
  }
  return _containerView;
}

- (UITextField *)textField {
  if (!_textField) {
    _textField = [[UITextField alloc] init];
    _textField.textColor = [UIColor whiteColor];
    _textField.textAlignment = NSTextAlignmentLeft;
    _textField.font = [UIFont systemFontOfSize:14];
    _textField.delegate = self;
    _textField.returnKeyType = UIReturnKeySend;
    [_textField addTarget:self
                   action:@selector(textFieldDidChange:)
         forControlEvents:UIControlEventEditingChanged];
    [self updatePlaceholderVisibility];
  }
  return _textField;
}

- (UILabel *)placeholderLabel {
  if (!_placeholderLabel) {
    _placeholderLabel = [[UILabel alloc] init];
    _placeholderLabel.text = @"Send A Message";
    _placeholderLabel.textColor = [UIColor whiteColor];
    _placeholderLabel.font = [UIFont systemFontOfSize:14];
    _placeholderLabel.textAlignment = NSTextAlignmentCenter;
    _placeholderLabel.userInteractionEnabled = NO;
  }
  return _placeholderLabel;
}

- (UIButton *)sendButton {
  if (!_sendButton) {
    _sendButton = [UIButton buttonWithType:UIButtonTypeCustom];
//    [_sendButton setTitle:@"发送" forState:UIControlStateNormal];
//    [_sendButton setTitleColor:[UIColor systemBlueColor]
//                      forState:UIControlStateNormal];
//    _sendButton.titleLabel.font = [UIFont systemFontOfSize:15
//                                                    weight:UIFontWeightMedium];
      [_sendButton setImage:[UIImage imageNamed:@"ai_sendmessage_icon"] forState:UIControlStateNormal];
    _sendButton.enabled = NO;
//    _sendButton.alpha = 0.5;
    [_sendButton addTarget:self
                    action:@selector(sendButtonTapped)
          forControlEvents:UIControlEventTouchUpInside];
  }
  return _sendButton;
}

#pragma mark - Private

- (void)updatePlaceholderVisibility {
  BOOL hasText = self.textField.text.length > 0;
  self.placeholderLabel.hidden = hasText;
}

@end