import { TextInput } from "react-native";
import {
  makeReactNativeField,
  withError,
  withInputTypeProps,
  withNextInputAutoFocusInput
} from "react-native-formik";
import { TextField } from "react-native-material-textfield";

class InputWithFocus extends Component {
  private root = React.createRef();

  public focus() {
    if (this.root.current) this.root.current.input.focus();
  }

  public render() {
    const {
      error,      touched,
      label,
      theme,
      containerStyle,
      ...props
    } = this.props;

    const displayError = !!error && touched;    const errorColor = theme.colors.error;

    const baseColor = theme.colors.light_translucent;
    const tintColor = theme.colors.white;
    const textColor = theme.colors.white;

    return (
      <TextField
        ref={this.root}        baseColor={displayError ? errorColor : baseColor}        tintColor={displayError ? errorColor : tintColor}        textColor={displayError ? errorColor : textColor}        label={label}        error={error}        errorColor={errorColor}        containerStyle={containerStyle}        {...props}      />
    );
  }
}

export const FormInput = withTheme(
  withInputTypeProps(
    makeReactNativeField(withError(withNextInputAutoFocusInput(InputWithFocus)))
  )
);
FormInput.displayName = "FormInput";

/**
 * Copyright (c) 2015-present, Facebook, Inc.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */

#import "RCTBaseTextViewManager.h"

@implementation RCTBaseTextViewManager

RCT_EXPORT_MODULE(RCTBaseText)

- (UIView *)view
{
  RCTAssert(NO, @"The `-[RCTBaseTextViewManager view]` property must be overridden in subclass.");
  return nil;
}

- (RCTShadowView *)shadowView
{
  RCTAssert(NO, @"The `-[RCTBaseTextViewManager shadowView]` property must be overridden in subclass.");
  return nil;
}

#pragma mark - Text Attributes

// Color
RCT_REMAP_SHADOW_PROPERTY(color, textAttributes.foregroundColor, UIColor)RCT_REMAP_SHADOW_PROPERTY(backgroundColor, textAttributes.backgroundColor, UIColor)
RCT_REMAP_SHADOW_PROPERTY(opacity, textAttributes.opacity, CGFloat)
// Font
RCT_REMAP_SHADOW_PROPERTY(fontFamily, textAttributes.fontFamily, NSString)
RCT_REMAP_SHADOW_PROPERTY(fontSize, textAttributes.fontSize, CGFloat)
RCT_REMAP_SHADOW_PROPERTY(fontWeight, textAttributes.fontWeight, NSString)
RCT_REMAP_SHADOW_PROPERTY(fontStyle, textAttributes.fontStyle, NSString)
RCT_REMAP_SHADOW_PROPERTY(fontVariant, textAttributes.fontVariant, NSArray)
RCT_REMAP_SHADOW_PROPERTY(allowFontScaling, textAttributes.allowFontScaling, BOOL)
RCT_REMAP_SHADOW_PROPERTY(letterSpacing, textAttributes.letterSpacing, CGFloat)
// Paragraph Styles
RCT_REMAP_SHADOW_PROPERTY(lineHeight, textAttributes.lineHeight, CGFloat)
RCT_REMAP_SHADOW_PROPERTY(textAlign, textAttributes.alignment, NSTextAlignment)
RCT_REMAP_SHADOW_PROPERTY(writingDirection, textAttributes.baseWritingDirection, NSWritingDirection)
// Decoration
RCT_REMAP_SHADOW_PROPERTY(textDecorationColor, textAttributes.textDecorationColor, UIColor)
RCT_REMAP_SHADOW_PROPERTY(textDecorationStyle, textAttributes.textDecorationStyle, NSUnderlineStyle)
RCT_REMAP_SHADOW_PROPERTY(textDecorationLine, textAttributes.textDecorationLine, RCTTextDecorationLineType)
// Shadow
RCT_REMAP_SHADOW_PROPERTY(textShadowOffset, textAttributes.textShadowOffset, CGSize)
RCT_REMAP_SHADOW_PROPERTY(textShadowRadius, textAttributes.textShadowRadius, CGFloat)
RCT_REMAP_SHADOW_PROPERTY(textShadowColor, textAttributes.textShadowColor, UIColor)
// Special
RCT_REMAP_SHADOW_PROPERTY(isHighlighted, textAttributes.isHighlighted, BOOL)
RCT_REMAP_SHADOW_PROPERTY(textTransform, textAttributes.textTransform, RCTTextTransform)

@end

/**
 * This handles the simple case, where JS and native property names match.
 */
#define RCT_EXPORT_VIEW_PROPERTY(name, type) \
+ (NSArray<NSString *> *)propConfig_##name RCT_DYNAMIC { return @[@#type]; }

/**
 * This macro maps a named property to an arbitrary key path in the view.
 */
#define RCT_REMAP_VIEW_PROPERTY(name, keyPath, type) \
+ (NSArray<NSString *> *)propConfig_##name RCT_DYNAMIC { return @[@#type, @#keyPath]; }

/**
 * This macro can be used when you need to provide custom logic for setting
 * view properties. The macro should be followed by a method body, which can
 * refer to "json", "view" and "defaultView" to implement the required logic.
 */
#define RCT_CUSTOM_VIEW_PROPERTY(name, type, viewClass) \
RCT_REMAP_VIEW_PROPERTY(name, __custom__, type)         \
- (void)set_##name:(id)json forView:(viewClass *)view withDefaultView:(viewClass *)defaultView RCT_DYNAMIC

/**
 * This macro is used to map properties to the shadow view, instead of the view.
 */
#define RCT_EXPORT_SHADOW_PROPERTY(name, type) \
+ (NSArray<NSString *> *)propConfigShadow_##name RCT_DYNAMIC { return @[@#type]; }

/**
 * This macro maps a named property to an arbitrary key path in the shadow view. */
#define RCT_REMAP_SHADOW_PROPERTY(name, keyPath, type) \
+ (NSArray<NSString *> *)propConfigShadow_##name RCT_DYNAMIC { return @[@#type, @#keyPath]; }

/**
 * This macro can be used when you need to provide custom logic for setting
 * shadow view properties. The macro should be followed by a method body, which can
 * refer to "json" and "view".
 */
#define RCT_CUSTOM_SHADOW_PROPERTY(name, type, viewClass) \
RCT_REMAP_SHADOW_PROPERTY(name, __custom__, type)         \
- (void)set_##name:(id)json forShadowView:(viewClass *)view RCT_DYNAMIC

- (void)setAttributedText:(NSAttributedString *)attributedText
{
  NSInteger eventLag = _nativeEventCount - _mostRecentEventCount;
  BOOL textNeedsUpdate = NO;
  // Remove tag attribute to ensure correct attributed string comparison.
  NSMutableAttributedString *const backedTextInputViewTextCopy = [self.backedTextInputView.attributedText mutableCopy];
  NSMutableAttributedString *const attributedTextCopy = [attributedText mutableCopy];

  [backedTextInputViewTextCopy removeAttribute:RCTTextAttributesTagAttributeName
                                         range:NSMakeRange(0, backedTextInputViewTextCopy.length)];

  [attributedTextCopy removeAttribute:RCTTextAttributesTagAttributeName
                                range:NSMakeRange(0, attributedTextCopy.length)];

  textNeedsUpdate = ([self textOf:attributedTextCopy equals:backedTextInputViewTextCopy] == NO);
  if (eventLag == 0 && textNeedsUpdate) {
    UITextRange *selection = self.backedTextInputView.selectedTextRange;
    NSInteger oldTextLength = self.backedTextInputView.attributedText.string.length;

    self.backedTextInputView.attributedText = attributedText;

    if (selection.empty) {
      // Maintaining a cursor position relative to the end of the old text.
      NSInteger offsetStart =
      [self.backedTextInputView offsetFromPosition:self.backedTextInputView.beginningOfDocument
                                        toPosition:selection.start];
      NSInteger offsetFromEnd = oldTextLength - offsetStart;
      NSInteger newOffset = attributedText.string.length - offsetFromEnd;
      UITextPosition *position =
      [self.backedTextInputView positionFromPosition:self.backedTextInputView.beginningOfDocument
                                              offset:newOffset];
      [self.backedTextInputView setSelectedTextRange:[self.backedTextInputView textRangeFromPosition:position toPosition:position]
                                      notifyDelegate:YES];
    }

    [self updateLocalData];
  } else if (eventLag > RCTTextUpdateLagWarningThreshold) {
    RCTLogWarn(@"Native TextInput(%@) is %lld events ahead of JS - try to make your JS faster.", self.backedTextInputView.attributedText.string, (long long)eventLag);
  }
}

- (BOOL)textOf:(NSAttributedString*)newText equals:(NSAttributedString*)oldText{
  // When the dictation is running we can't update the attributed text on the backed up text view
  // because setting the attributed string will kill the dictation. This means that we can't impose
  // the settings on a dictation.
  // Similarly, when the user is in the middle of inputting some text in Japanese/Chinese, there will be styling on the
  // text that we should disregard. See https://developer.apple.com/documentation/uikit/uitextinput/1614489-markedtextrange?language=objc
  // for more info.
  // Lastly, when entering a password, etc., there will be additional styling on the field as the native text view
  // handles showing the last character for a split second.
  BOOL shouldFallbackToBareTextComparison =
    [self.backedTextInputView.textInputMode.primaryLanguage isEqualToString:@"dictation"] ||
    self.backedTextInputView.markedTextRange ||
    self.backedTextInputView.isSecureTextEntry;  if (shouldFallbackToBareTextComparison) {
    return ([newText.string isEqualToString:oldText.string]);
  } else {
    return ([newText isEqualToAttributedString:oldText]);
  }
}

- (void)updateLocalData
{
  [self enforceTextAttributesIfNeeded];
  [_bridge.uiManager setLocalData:[self.backedTextInputView.attributedText copy]
                          forView:self];
}

- (void)enforceTextAttributesIfNeeded
{
  id<RCTBackedTextInputViewProtocol> backedTextInputView = self.backedTextInputView;
  if (backedTextInputView.attributedText.string.length != 0) {
    return;
  }

  backedTextInputView.font = _textAttributes.effectiveFont;
  backedTextInputView.textColor = _textAttributes.effectiveForegroundColor;  backedTextInputView.textAlignment = _textAttributes.alignment;
}