/
spacings.ts
45 lines (36 loc) · 1.49 KB
/
spacings.ts
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import { breakpointsOrder, Breakpoints, Spacing, ThemeInterface } from '@bigcommerce/big-design-theme';
import { css } from 'styled-components';
type SingleSpacingProp = keyof Spacing;
type ResponsiveSpacingProp = { [key in keyof Breakpoints]?: keyof Spacing };
type SpacingProp = SingleSpacingProp | ResponsiveSpacingProp;
interface SpacingObject {
[key: string]: string | 0;
}
export function getSpacingStyles(spacing: SpacingProp, theme: ThemeInterface, ...spacingKeys: string[]) {
if (typeof spacing === 'object') {
return getResponsiveSpacings(spacing, theme, spacingKeys);
}
if (typeof spacing === 'string') {
return getSimpleSpacings(spacing, theme, spacingKeys);
}
return css``;
}
function getSimpleSpacings(spacing: SingleSpacingProp, theme: ThemeInterface, spacingKeys: string[]) {
return spacingKeys.reduce<SpacingObject>((acc, spacingKey) => {
acc[spacingKey] = theme.spacing[spacing];
return acc;
}, {});
}
function getResponsiveSpacings(responsiveSpacing: ResponsiveSpacingProp, theme: ThemeInterface, spacingKeys: string[]) {
const breakpointKeys = Object.keys(responsiveSpacing).sort(
(a, b) => breakpointsOrder.indexOf(a as keyof Breakpoints) - breakpointsOrder.indexOf(b as keyof Breakpoints),
);
return (breakpointKeys as Array<keyof Breakpoints>).map(
breakpointKey =>
css`
${theme.breakpoints[breakpointKey]} {
${getSimpleSpacings(responsiveSpacing[breakpointKey] as keyof Spacing, theme, spacingKeys)}
}
`,
);
}