Tag Component with updated tokens (#89)

* feat: TET-363 tag

* feat: TET-363 tag v2

* feat: tokens update TET-363

---------

Co-authored-by: Marta Kozina <marta.kozina.external@jetbrains.com>

src/components/Tag/Tag.props.ts

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+import { SyntheticEvent } from 'react';
+
+import { TagConfig } from '@/components/Tag/Tag.styles.ts';
+import { TextInputProps } from '@/components/TextInput';
+
+export type TagProps = {
+  label: string;
+  state?: 'selected' | 'disabled';
+  beforeComponent?: TextInputProps.InnerComponents.Avatar;
+  onClick?: (e: SyntheticEvent<HTMLSpanElement>) => void;
+  onCloseClick?: (e: SyntheticEvent<HTMLButtonElement>) => void;
+  custom?: TagConfig;
+};

src/components/Tag/Tag.stories.tsx

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+import type { Meta, StoryObj } from '@storybook/react';
+
+import { Tag } from './Tag';
+
+import { TagDocs } from '@/docs-components/TagDocs.tsx';
+import { TetDocs } from '@/docs-components/TetDocs';
+
+const meta = {
+  title: 'Tag',
+  component: Tag,
+  tags: ['autodocs'],
+  parameters: {
+    docs: {
+      description: {
+        component:
+          'A compact, visually distinct element used to label, categorize, or organize content. Tags can help users quickly identify and filter items by attributes such as keywords, topics, or statuses.',
+      },
+      page: () => (
+        <TetDocs docs="https://docs.tetrisly.com/components/in-progress/tag">
+          <TagDocs />
+        </TetDocs>
+      ),
+    },
+  },
+  args: {
+    label: 'Tag',
+    onClick: () => null,
+  },
+} satisfies Meta<typeof Tag>;
+
+export default meta;
+type Story = StoryObj<typeof meta>;
+
+export const Default: Story = {};
+
+export const BeforeAvatarComponent: Story = {
+  args: {
+    beforeComponent: {
+      type: 'Avatar',
+      props: {
+        initials: 'A',
+        emphasis: 'high',
+      },
+    },
+  },
+};
+
+export const WithRemoveButton: Story = {
+  args: {
+    state: undefined,
+    onCloseClick: () => null,
+  },
+};

src/components/Tag/Tag.styles.ts

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+import type { BaseProps } from '@/types/BaseProps';
+
+export type TagConfig = {
+  hasOnClick?: BaseProps;
+  innerElements?: {
+    label: BaseProps;
+    closeButton?: BaseProps;
+    beforeComponent?: {
+      avatar?: BaseProps;
+    };
+  };
+} & BaseProps;
+
+const backgroundColor = {
+  hover: '$color-interaction-neutral-subtle-hover',
+  active: '$color-interaction-neutral-subtle-active',
+  focus: '$color-interaction-neutral-subtle-normal',
+};
+
+export const defaultConfig = {
+  display: 'inline-flex',
+  h: '$size-xSmall',
+  alignItems: 'center',
+  borderRadius: '$border-radius-medium',
+  backgroundColor: '$color-interaction-neutral-subtle-normal',
+  opacity: {
+    disabled: '$opacity-disabled',
+  },
+  cursor: 'default',
+  outlineColor: {
+    focus: '$color-interaction-focus-default',
+  },
+  transitionDuration: 50,
+  color: '$color-content-primary',
+  hasOnClick: {
+    backgroundColor: {
+      _: '$color-interaction-neutral-subtle-normal',
+      disabled: '$color-interaction-neutral-subtle-normal',
+      selected: {
+        _: '$color-interaction-neutral-subtle-selected',
+        ...backgroundColor,
+      },
+      ...backgroundColor,
+    },
+    cursor: {
+      _: 'pointer',
+      disabled: 'default',
+    },
+  },
+  innerElements: {
+    label: {
+      mx: '$space-component-padding-small',
+      text: '$typo-body-medium',
+    },
+    closeButton: {
+      mr: '$space-component-padding-xSmall',
+      h: '$size-2xSmall',
+      w: '$size-2xSmall',
+      opacity: {
+        disabled: '$opacity-100',
+      },
+    },
+    beforeComponent: {
+      avatar: {
+        ml: '$space-component-padding-2xSmall',
+      },
+    },
+  },
+} satisfies TagConfig;

src/components/Tag/Tag.test.tsx

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+import { vi } from 'vitest';
+
+import { render, fireEvent } from '../../tests/render';
+
+import { Tag } from '@/components/Tag/Tag.tsx';
+import { customPropTester } from '@/tests/customPropTester';
+
+const getTag = (jsx: JSX.Element) => {
+  const { getByTestId, queryByTestId } = render(jsx);
+
+  return {
+    tag: getByTestId('tag'),
+    label: getByTestId('tag-label'),
+    avatar: queryByTestId('tag-avatar'),
+    closeButton: queryByTestId('tag-iconButton'),
+  };
+};
+
+describe('Tag', () => {
+  const handleEventMock = vi.fn();
+
+  customPropTester(<Tag label="Label" />, {
+    containerId: 'tag',
+  });
+
+  beforeEach(() => {
+    handleEventMock.mockReset();
+  });
+
+  it('should render the tag', () => {
+    const { tag } = getTag(<Tag label="label" />);
+    expect(tag).toBeInTheDocument();
+  });
+
+  it('should render the correct label', () => {
+    const { tag } = getTag(<Tag label="label" />);
+    expect(tag).toHaveTextContent('label');
+  });
+
+  it('should render beforeComponent', () => {
+    const { avatar } = getTag(
+      <Tag
+        label="label"
+        beforeComponent={{ type: 'Avatar', props: { initials: 'A' } }}
+      />,
+    );
+    expect(avatar).toBeInTheDocument();
+  });
+
+  it('should render closeButton', () => {
+    const { closeButton } = getTag(
+      <Tag label="label" onCloseClick={handleEventMock} />,
+    );
+    expect(closeButton).toBeInTheDocument();
+  });
+
+  it('should emit onClick', () => {
+    const { tag } = getTag(<Tag label="label" onClick={handleEventMock} />);
+    fireEvent.click(tag);
+    expect(handleEventMock).toHaveBeenCalled();
+  });
+
+  it('should not emit onCloseClick', () => {
+    const { closeButton } = getTag(
+      <Tag label="label" onCloseClick={handleEventMock} state="disabled" />,
+    );
+    fireEvent.click(closeButton as Element);
+    expect(handleEventMock).not.toHaveBeenCalled();
+  });
+
+  it('should render disabled closeButton', () => {
+    const { closeButton } = getTag(
+      <Tag label="label" state="disabled" onCloseClick={handleEventMock} />,
+    );
+    expect(closeButton).toBeDisabled();
+  });
+
+  it('should render the correct color (disabled)', () => {
+    const { tag } = getTag(<Tag label="label" state="disabled" />);
+    expect(tag).toHaveStyle('background-color: rgb(240, 243, 245);');
+  });
+
+  it('should render the right cursor (with onClick)', () => {
+    const { tag } = getTag(<Tag label="label" onClick={handleEventMock} />);
+    expect(tag).toHaveStyle('cursor: pointer');
+  });
+
+  it('should render the right cursor (without onClick)', () => {
+    const { tag } = getTag(<Tag label="label" />);
+    expect(tag).toHaveStyle('cursor: default');
+  });
+
+  it('should render the right cursor (with state disabled)', () => {
+    const { tag } = getTag(<Tag label="label" state="disabled" />);
+    expect(tag).toHaveStyle('cursor: default');
+  });
+
+  it('should not emit onClick', () => {
+    const onCloseCLick = vi.fn();
+    const onClick = vi.fn();
+
+    const { closeButton } = getTag(
+      <Tag label="label" onCloseClick={onCloseCLick} onClick={onClick} />,
+    );
+
+    if (closeButton) {
+      fireEvent.click(closeButton);
+    }
+    expect(onCloseCLick).toBeCalledTimes(1);
+    expect(onClick).not.toHaveBeenCalled();
+  });
+});

src/components/Tag/Tag.tsx

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+import {
+  FC,
+  KeyboardEventHandler,
+  MouseEventHandler,
+  useCallback,
+  useMemo,
+  useRef,
+} from 'react';
+
+import { stylesBuilder } from './stylesBuilder';
+import { TagProps } from './Tag.props';
+import { Avatar } from '../Avatar';
+import { IconButton } from '../IconButton';
+
+import { tet } from '@/tetrisly';
+import { MarginProps } from '@/types';
+
+const KEYBOARD_KEYS = {
+  Enter: 'Enter',
+  Space: ' ',
+};
+
+export const Tag: FC<TagProps & MarginProps> = ({
+  label,
+  state,
+  beforeComponent,
+  onClick,
+  onCloseClick,
+  custom,
+  ...restProps
+}) => {
+  const hasCloseButton = !!onCloseClick;
+  const hasOnClick = !!onClick;
+  const styles = useMemo(
+    () => stylesBuilder(custom, hasOnClick),
+    [custom, hasOnClick],
+  );
+
+  const containerRef = useRef<HTMLSpanElement | null>(null);
+  const handleOnKeyDown: KeyboardEventHandler<HTMLSpanElement> = useCallback(
+    (e) => {
+      if (
+        e.target === containerRef.current &&
+        (e.key === KEYBOARD_KEYS.Enter || e.key === KEYBOARD_KEYS.Space)
+      ) {
+        onClick?.(e);
+      }
+    },
+    [containerRef, onClick],
+  );
+
+  const handleOnCloseClick: MouseEventHandler<HTMLButtonElement> = useCallback(
+    (e) => {
+      onCloseClick?.(e);
+      e.stopPropagation();
+    },
+    [onCloseClick],
+  );
+
+  return (
+    <tet.span
+      tabIndex={0}
+      ref={containerRef}
+      onClick={onClick}
+      onKeyDown={handleOnKeyDown}
+      {...styles.container}
+      data-state={state}
+      data-testid="tag"
+      {...restProps}
+    >
+      {!!beforeComponent && (
+        <Avatar
+          shape="square"
+          size="2xSmall"
+          {...beforeComponent.props}
+          {...styles.avatar}
+          data-testid="tag-avatar"
+        />
+      )}
+      <tet.p
+        {...styles.label}
+        mr={
+          hasCloseButton
+            ? '$space-component-padding-xSmall'
+            : '$space-component-padding-small'
+        }
+        data-testid="tag-label"
+      >
+        {label}
+      </tet.p>
+      {hasCloseButton && (
+        <IconButton
+          icon="20-close"
+          variant="bare"
+          onClick={handleOnCloseClick}
+          state={state}
+          {...styles.closeButton}
+          data-testid="tag-iconButton"
+        />
+      )}
+    </tet.span>
+  );
+};

src/components/Tag/index.ts

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+export { Tag } from './Tag';
+export type { TagProps } from './Tag.props';

src/components/Tag/stylesBuilder/index.ts

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+export { stylesBuilder } from './stylesBuilder';

src/components/Tag/stylesBuilder/stylesBuilder.ts

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+import type { TagProps } from '../Tag.props';
+import { defaultConfig } from '../Tag.styles';
+
+import { mergeConfigWithCustom } from '@/services';
+import type { BaseProps } from '@/types/BaseProps';
+
+type TagStylesBuilder = {
+  container: BaseProps;
+  label: BaseProps;
+  avatar: BaseProps;
+  closeButton: BaseProps;
+};
+export const stylesBuilder = (
+  custom: TagProps['custom'],
+  hasOnClick?: boolean,
+): TagStylesBuilder => {
+  const {
+    hasOnClick: hasOnClickStyles,
+    innerElements: {
+      label,
+      closeButton,
+      beforeComponent: { avatar },
+    },
+    ...container
+  } = mergeConfigWithCustom({ defaultConfig, custom });
+
+  return {
+    container: {
+      ...container,
+      ...(hasOnClick && hasOnClickStyles),
+    },
+    label,
+    avatar,
+    closeButton,
+  };
+};