import { TextStyle, ViewStyle } from 'react-native';
import { getVariant } from '../../utils';
import {
  AnchorOrigin,
  BadgeContentDefaultStylesProps,
  GenerateBadgeContainerStylesProps,
  GenerateBadgeStylesProps,
  PlaceBadgeBasedPosition,
} from './Badge.types';
import { BADGE_DEFAULT_RADIUS } from './constants';

export const badgeContentDefaultStyles = ({ variation }: BadgeContentDefaultStylesProps): TextStyle => {
  const baseStyles: TextStyle = {
    color: variation === 'warning' ? 'black' : 'white',
  };
  return baseStyles;
};

export const placeBadgeBasedPosition = ({ anchorOrigin, variant }: PlaceBadgeBasedPosition): ViewStyle => {
  const isDotVariation = variant === 'dot';
  const placement = isDotVariation ? 0 : -4;

  const baseStyles: ViewStyle = {
    ...(anchorOrigin?.horizontal === 'left' && { left: placement }),
    ...(anchorOrigin?.horizontal === 'right' && { right: placement }),
    ...(anchorOrigin?.vertical === 'top' && { top: placement }),
    ...(anchorOrigin?.vertical === 'bottom' && { bottom: placement }),
  };

  return baseStyles;
};

export const generateBadgeContainerStyles = ({ overlap }: GenerateBadgeContainerStylesProps): ViewStyle => {
  const isCircles = overlap === 'circular';
  const isRectangular = overlap === 'rectangular';

  let borderRadius: number;

  if (isCircles) {
    borderRadius = 100;
  } else if (isRectangular) {
    borderRadius = 5;
  } else {
    borderRadius = 0;
  }

  return {
    borderRadius,
  };
};

export const generateBadgeStyles = ({
  themeComponentConfig,
  themeColors,
  variation,
  badgeVisibility,
  variant,
  anchorOrigin,
  overrideRootConfig,
  shouldOverrideRootAnchor,
}: GenerateBadgeStylesProps): ViewStyle => {
  const isDotVariation = variant === 'dot';
  let styles: ViewStyle = {};

  let badgePosition: AnchorOrigin | undefined;
  if (shouldOverrideRootAnchor) {
    badgePosition = anchorOrigin;
  } else {
    badgePosition = themeComponentConfig?.anchorOrigin ?? anchorOrigin;
  }

  styles = {
    ...styles,
    ...placeBadgeBasedPosition({ anchorOrigin: overrideRootConfig ? anchorOrigin : badgePosition, variant }),
    backgroundColor: getVariant({
      variant: variation,
      colors: themeColors,
      config: themeComponentConfig?.colors,
    }),
  };

  styles = {
    ...styles,
    minWidth: isDotVariation ? BADGE_DEFAULT_RADIUS : BADGE_DEFAULT_RADIUS * 2,
    minHeight: isDotVariation ? BADGE_DEFAULT_RADIUS : BADGE_DEFAULT_RADIUS * 2,
    transform: [
      {
        scale: badgeVisibility
          ? badgeVisibility.interpolate({
              inputRange: [0, 1],
              outputRange: [0, 1],
            })
          : 0,
      },
    ],
  };

  return styles;
};