feat(client): basic Storybook setup

client/.storybook/main.js

@@ -0,0 +1,8 @@
+module.exports = {
+  stories: ['../src/**/*.stories.mdx', '../src/**/*.stories.js'],
+  addons: [
+    '@storybook/addon-links',
+    '@storybook/addon-essentials',
+    '@storybook/addon-postcss'
+  ]
+};

client/.storybook/manager.js

@@ -0,0 +1,6 @@
+import { addons } from '@storybook/addons';
+import theme from './theme';
+
+addons.setConfig({
+  theme
+});

client/.storybook/preview.js

@@ -0,0 +1,9 @@
+export const parameters = {
+  actions: { argTypesRegex: '^on[A-Z].*' },
+  controls: {
+    matchers: {
+      color: /(background|color)$/i,
+      date: /Date$/
+    }
+  }
+};

client/.storybook/theme.js

@@ -0,0 +1,8 @@
+import { create } from '@storybook/theming';
+
+export default create({
+  base: 'light',
+  brandTitle: 'freeCodeCamp.org',
+  brandImage:
+    'https://cdn.freecodecamp.org/platform/universal/fcc_secondary.svg'
+});

client/package.json

@@ -35,7 +35,9 @@
     "prestand-alone": "npm run prebuild",
     "stand-alone": "gatsby develop",
     "test": "jest",
-    "validate-keys": "node ./i18n/validate-keys.js"
+    "validate-keys": "node ./i18n/validate-keys.js",
+    "storybook": "start-storybook -p 6006",
+    "build-storybook": "build-storybook"
   },
   "dependencies": {
     "@babel/plugin-proposal-export-default-from": "7.12.13",
@@ -121,12 +123,21 @@
     "validator": "13.6.0"
   },
   "devDependencies": {
+    "@babel/core": "^7.13.16",
+    "@storybook/addon-actions": "^6.2.9",
+    "@storybook/addon-essentials": "^6.2.9",
+    "@storybook/addon-links": "^6.2.9",
+    "@storybook/addon-postcss": "^2.0.0",
+    "@storybook/react": "^6.2.9",
     "@testing-library/jest-dom": "5.12.0",
     "@testing-library/react": "11.2.6",
     "autoprefixer": "9.8.6",
+    "babel-loader": "^8.2.2",
     "babel-plugin-transform-imports": "1.5.1",
     "chokidar": "3.5.1",
     "copy-webpack-plugin": "5.1.2",
+    "dotenv-webpack": "^7.0.2",
+    "html-webpack-plugin": "^5.3.1",
     "jest": "26.6.3",
     "jest-json-schema-extended": "0.3.0",
     "monaco-editor-webpack-plugin": "3.0.0",

client/src/stories/Button.js

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+import React from 'react';
+import PropTypes from 'prop-types';
+
+import './button.css';
+
+/**
+ * Primary UI component for user interaction
+ */
+export const Button = ({
+  primary = false,
+  size = 'medium',
+  backgroundColor,
+  label,
+  ...props
+}) => {
+  const mode = primary
+    ? 'storybook-button--primary'
+    : 'storybook-button--secondary';
+  return (
+    <button
+      className={['storybook-button', `storybook-button--${size}`, mode].join(
+        ' '
+      )}
+      style={{ backgroundColor }}
+      type='button'
+      {...props}
+    >
+      {label}
+    </button>
+  );
+};
+
+Button.propTypes = {
+  backgroundColor: PropTypes.string,
+  label: PropTypes.string,
+  primary: PropTypes.bool,
+  size: PropTypes.string
+};

client/src/stories/Button.stories.js

@@ -0,0 +1,38 @@
+import React from 'react';
+
+import { Button } from './Button';
+
+const story = {
+  title: 'Example/Button',
+  component: Button,
+  argTypes: {
+    backgroundColor: { control: 'color' }
+  }
+};
+
+const Template = args => <Button {...args} />;
+
+export const Primary = Template.bind({});
+Primary.args = {
+  primary: true,
+  label: 'Button'
+};
+
+export const Secondary = Template.bind({});
+Secondary.args = {
+  label: 'Button'
+};
+
+export const Large = Template.bind({});
+Large.args = {
+  size: 'large',
+  label: 'Button'
+};
+
+export const Small = Template.bind({});
+Small.args = {
+  size: 'small',
+  label: 'Button'
+};
+
+export default story;

client/src/stories/Introduction.stories.mdx

@@ -0,0 +1,211 @@
+import { Meta } from '@storybook/addon-docs/blocks';
+import Code from './assets/code-brackets.svg';
+import Colors from './assets/colors.svg';
+import Comments from './assets/comments.svg';
+import Direction from './assets/direction.svg';
+import Flow from './assets/flow.svg';
+import Plugin from './assets/plugin.svg';
+import Repo from './assets/repo.svg';
+import StackAlt from './assets/stackalt.svg';
+
+<Meta title="Example/Introduction" />
+
+<style>{`
+  .subheading {
+    --mediumdark: '#999999';
+    font-weight: 900;
+    font-size: 13px;
+    color: #999;
+    letter-spacing: 6px;
+    line-height: 24px;
+    text-transform: uppercase;
+    margin-bottom: 12px;
+    margin-top: 40px;
+  }
+
+  .link-list {
+    display: grid;
+    grid-template-columns: 1fr;
+    grid-template-rows: 1fr 1fr;
+    row-gap: 10px;
+  }
+
+  @media (min-width: 620px) {
+    .link-list {
+      row-gap: 20px;
+      column-gap: 20px;
+      grid-template-columns: 1fr 1fr;
+    }
+  }
+
+  @media all and (-ms-high-contrast:none) {
+  .link-list {
+      display: -ms-grid;
+      -ms-grid-columns: 1fr 1fr;
+      -ms-grid-rows: 1fr 1fr;
+    }
+  }
+
+  .link-item {
+    display: block;
+    padding: 20px 30px 20px 15px;
+    border: 1px solid #00000010;
+    border-radius: 5px;
+    transition: background 150ms ease-out, border 150ms ease-out, transform 150ms ease-out;
+    color: #333333;
+    display: flex;
+    align-items: flex-start;
+  }
+
+  .link-item:hover {
+    border-color: #1EA7FD50;
+    transform: translate3d(0, -3px, 0);
+    box-shadow: rgba(0, 0, 0, 0.08) 0 3px 10px 0;
+  }
+
+  .link-item:active {
+    border-color: #1EA7FD;
+    transform: translate3d(0, 0, 0);
+  }
+
+  .link-item strong {
+    font-weight: 700;
+    display: block;
+    margin-bottom: 2px;
+  }
+  
+  .link-item img {
+    height: 40px;
+    width: 40px;
+    margin-right: 15px;
+    flex: none;
+  }
+
+  .link-item span {
+    font-size: 14px;
+    line-height: 20px;
+  }
+
+  .tip {
+    display: inline-block;
+    border-radius: 1em;
+    font-size: 11px;
+    line-height: 12px;
+    font-weight: 700;
+    background: #E7FDD8;
+    color: #66BF3C;
+    padding: 4px 12px;
+    margin-right: 10px;
+    vertical-align: top;
+  }
+
+  .tip-wrapper {
+    font-size: 13px;
+    line-height: 20px;
+    margin-top: 40px;
+    margin-bottom: 40px;
+  }
+
+  .tip-wrapper code {
+    font-size: 12px;
+    display: inline-block;
+  }
+
+  
+`}</style>
+
+# Welcome to Storybook
+
+Storybook helps you build UI components in isolation from your app's business logic, data, and context.
+That makes it easy to develop hard-to-reach states. Save these UI states as **stories** to revisit during development, testing, or QA.
+
+Browse example stories now by navigating to them in the sidebar.
+View their code in the `src/stories` directory to learn how they work.
+We recommend building UIs with a [**component-driven**](https://componentdriven.org) process starting with atomic components and ending with pages.
+
+<div className="subheading">Configure</div>
+
+<div className="link-list">
+  <a
+    className="link-item"
+    href="https://storybook.js.org/docs/react/addons/addon-types"
+    target="_blank"
+  >
+    <img src={Plugin} alt="plugin" />
+    <span>
+      <strong>Presets for popular tools</strong>
+      Easy setup for TypeScript, SCSS and more.
+    </span>
+  </a>
+  <a
+    className="link-item"
+    href="https://storybook.js.org/docs/react/configure/webpack"
+    target="_blank"
+  >
+    <img src={StackAlt} alt="Build" />
+    <span>
+      <strong>Build configuration</strong>
+      How to customize webpack and Babel
+    </span>
+  </a>
+  <a
+    className="link-item"
+    href="https://storybook.js.org/docs/react/configure/styling-and-css"
+    target="_blank"
+  >
+    <img src={Colors} alt="colors" />
+    <span>
+      <strong>Styling</strong>
+      How to load and configure CSS libraries
+    </span>
+  </a>
+  <a
+    className="link-item"
+    href="https://storybook.js.org/docs/react/get-started/setup#configure-storybook-for-your-stack"
+    target="_blank"
+  >
+    <img src={Flow} alt="flow" />
+    <span>
+      <strong>Data</strong>
+      Providers and mocking for data libraries
+    </span>
+  </a>
+</div>
+
+<div className="subheading">Learn</div>
+
+<div className="link-list">
+  <a className="link-item" href="https://storybook.js.org/docs" target="_blank">
+    <img src={Repo} alt="repo" />
+    <span>
+      <strong>Storybook documentation</strong>
+      Configure, customize, and extend
+    </span>
+  </a>
+  <a className="link-item" href="https://storybook.js.org/tutorials/" target="_blank">
+    <img src={Direction} alt="direction" />
+    <span>
+      <strong>In-depth guides</strong>
+      Best practices from leading teams
+    </span>
+  </a>
+  <a className="link-item" href="https://github.com/storybookjs/storybook" target="_blank">
+    <img src={Code} alt="code" />
+    <span>
+      <strong>GitHub project</strong>
+      View the source and add issues
+    </span>
+  </a>
+  <a className="link-item" href="https://discord.gg/storybook" target="_blank">
+    <img src={Comments} alt="comments" />
+    <span>
+      <strong>Discord chat</strong>
+      Chat with maintainers and the community
+    </span>
+  </a>
+</div>
+
+<div className="tip-wrapper">
+  <span className="tip">Tip</span>Edit the Markdown in{' '}
+  <code>src/stories/Introduction.stories.mdx</code>
+</div>