import { Dict, mode, transparentize } from '../tools';
import { Platform } from 'react-native';

const baseStyle = (props: any) => {
  const { primary } = props.theme.colors;
  const focusRing =
    Platform.OS === 'web'
      ? { boxShadow: `${primary[400]} 0px 0px 0px 3px` }
      : {};

  return {
    borderRadius: 'sm',
    _web: {
      cursor: props.isDisabled
        ? 'not-allowed'
        : props.isLoading
        ? 'default'
        : 'pointer',
    },
    _focusVisible: {
      style: props.variant !== 'unstyled' ? { ...focusRing } : {},
    },
    _disabled: {
      opacity: 0.5,
    },
  };
};

function variantGhost(props: Dict) {
  const { colorScheme } = props;
  return {
    bg: 'transparent',
    _web: {
      outlineWidth: 0,
    },
    _hover: {
      bg: transparentize(
        mode(`${colorScheme}.200`, `${colorScheme}.400`)(props),
        0.5
      )(props.theme),
    },
    _focusVisible: {
      bg: transparentize(
        mode(`${colorScheme}.200`, `${colorScheme}.400`)(props),
        0.5
      )(props.theme),
    },
    _pressed: {
      bg: transparentize(
        mode(`${colorScheme}.200`, `${colorScheme}.500`)(props),
        0.6
      )(props.theme),
    },
  };
}

function variantOutline(props: Dict) {
  const { colorScheme } = props;
  return {
    borderWidth: '1',
    borderColor: `${colorScheme}.300`,
    _icon: {
      color: mode(`${colorScheme}.500`, `${colorScheme}.300`)(props),
    },
    _web: {
      outlineWidth: 0,
    },
    _hover: {
      bg: transparentize(
        mode(`${colorScheme}.200`, `${colorScheme}.400`)(props),
        0.5
      )(props.theme),
    },
    _focusVisible: {
      bg: transparentize(
        mode(`${colorScheme}.200`, `${colorScheme}.400`)(props),
        0.5
      )(props.theme),
    },
    _pressed: {
      bg: transparentize(
        mode(`${colorScheme}.300`, `${colorScheme}.500`)(props),
        0.6
      )(props.theme),
    },
  };
}

function variantSolid(props: Dict) {
  const { colorScheme } = props;
  return {
    bg: `${colorScheme}.500`,
    _web: {
      outlineWidth: 0,
    },
    _disabled: {
      bg: mode(`trueGray.300`, `trueGray.600`)(props),
    },
    _hover: {
      bg: `${colorScheme}.600`,
    },
    _pressed: {
      bg: `${colorScheme}.700`,
    },
    _focus: {
      bg: `${colorScheme}.600`,
    },
    _icon: {
      color: mode('gray.50', 'gray.800')(props),
    },
  };
}

function variantUnstyled() {
  return {};
}

const variants = {
  ghost: variantGhost,
  outline: variantOutline,
  solid: variantSolid,
  unstyled: variantUnstyled,
};

const defaultProps = {
  variant: 'ghost',
  size: 'md',
  colorScheme: 'primary',
};

const sizes = {
  lg: {
    p: 3,
  },
  md: {
    p: 2,
  },
  sm: {
    p: 1,
  },
};

export default {
  baseStyle,
  variants,
  sizes,
  defaultProps,
};