From 584bd42f871d2e1618ca414749f09c38f0143a44 Mon Sep 17 00:00:00 2001
From: Armand Philippot <git@armandphilippot.com>
Date: Wed, 18 May 2022 22:40:59 +0200
Subject: chore: handle settings change

---
 src/utils/hooks/use-attributes.tsx | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100644 src/utils/hooks/use-attributes.tsx

(limited to 'src/utils/hooks/use-attributes.tsx')

diff --git a/src/utils/hooks/use-attributes.tsx b/src/utils/hooks/use-attributes.tsx
new file mode 100644
index 0000000..97a7b43
--- /dev/null
+++ b/src/utils/hooks/use-attributes.tsx
@@ -0,0 +1,33 @@
+import { useEffect } from 'react';
+
+export type useAttributesProps = {
+  /**
+   * An HTML element.
+   */
+  element?: HTMLElement;
+  /**
+   * The attribute name.
+   */
+  attribute: string;
+  /**
+   * The attribute value.
+   */
+  value: string;
+};
+
+/**
+ * Set HTML attributes to the given element or to the HTML document.
+ *
+ * @param props - An object with element, attribute name and value.
+ */
+const useAttributes = ({ element, attribute, value }: useAttributesProps) => {
+  useEffect(() => {
+    if (element) {
+      element.dataset[attribute] = value;
+    } else {
+      document.documentElement.dataset[attribute] = value;
+    }
+  }, [attribute, element, value]);
+};
+
+export default useAttributes;
-- 
cgit v1.2.3


From bbd63400f94b43fde04449e0c71d14763d893e6a Mon Sep 17 00:00:00 2001
From: Armand Philippot <git@armandphilippot.com>
Date: Thu, 19 May 2022 19:46:24 +0200
Subject: refactor: rewrite Prism hooks and providers

It avoid some hydratation errors on project pages (not in article
however) and the hooks are now reusable.
---
 src/components/molecules/forms/motion-toggle.tsx |   3 +-
 src/components/molecules/layout/code.tsx         |  25 +---
 src/components/templates/page/page-layout.tsx    |   5 +-
 src/pages/article/[slug].tsx                     |  54 +++++--
 src/styles/pages/partials/_article-prism.scss    |   2 +-
 src/utils/helpers/strings.ts                     |  10 ++
 src/utils/hooks/use-add-classname.tsx            |  34 +++++
 src/utils/hooks/use-add-prism-class-attr.tsx     |  60 --------
 src/utils/hooks/use-attributes.tsx               |  35 ++++-
 src/utils/hooks/use-code-blocks-theme.tsx        |  22 ---
 src/utils/hooks/use-prism-plugins.tsx            | 115 --------------
 src/utils/hooks/use-prism.tsx                    | 182 +++++++++++++++++++++++
 src/utils/hooks/use-query-selector-all.tsx       |  12 +-
 src/utils/providers/prism-theme.tsx              |  78 ++++------
 14 files changed, 346 insertions(+), 291 deletions(-)
 create mode 100644 src/utils/hooks/use-add-classname.tsx
 delete mode 100644 src/utils/hooks/use-add-prism-class-attr.tsx
 delete mode 100644 src/utils/hooks/use-code-blocks-theme.tsx
 delete mode 100644 src/utils/hooks/use-prism-plugins.tsx
 create mode 100644 src/utils/hooks/use-prism.tsx

(limited to 'src/utils/hooks/use-attributes.tsx')

diff --git a/src/components/molecules/forms/motion-toggle.tsx b/src/components/molecules/forms/motion-toggle.tsx
index e3bb11a..cbe38fe 100644
--- a/src/components/molecules/forms/motion-toggle.tsx
+++ b/src/components/molecules/forms/motion-toggle.tsx
@@ -33,7 +33,8 @@ const MotionToggle: FC<MotionToggleProps> = ({
     value
   );
   useAttributes({
-    attribute: 'reducedMotion',
+    element: document.documentElement || undefined,
+    attribute: 'reduced-motion',
     value: `${isReduced}`,
   });
 
diff --git a/src/components/molecules/layout/code.tsx b/src/components/molecules/layout/code.tsx
index 2959ae5..f5b60b9 100644
--- a/src/components/molecules/layout/code.tsx
+++ b/src/components/molecules/layout/code.tsx
@@ -1,7 +1,5 @@
-import usePrismPlugins, {
-  type PrismPlugin,
-} from '@utils/hooks/use-prism-plugins';
-import { FC } from 'react';
+import usePrism, { OptionalPrismPlugin } from '@utils/hooks/use-prism';
+import { FC, useRef } from 'react';
 import styles from './code.module.scss';
 
 export type PrismLanguage =
@@ -35,15 +33,6 @@ export type PrismLanguage =
   | 'twig'
   | 'yaml';
 
-export type OptionalPrismPlugin = Extract<
-  PrismPlugin,
-  | 'command-line'
-  | 'diff-highlight'
-  | 'inline-color'
-  | 'line-highlight'
-  | 'line-numbers'
->;
-
 export type CodeProps = {
   /**
    * The code to highlight.
@@ -79,17 +68,19 @@ const Code: FC<CodeProps> = ({
   plugins = [],
   outputPattern = '#output#',
 }) => {
-  const { pluginsAttribute, pluginsClassName } = usePrismPlugins(plugins);
+  const wrapperRef = useRef<HTMLDivElement>(null);
+  const { attributes, className } = usePrism({ language, plugins });
 
   const outputAttribute = filterOutput
     ? { 'data-filter-output': outputPattern }
     : {};
 
   return (
-    <div className={styles.wrapper}>
+    <div className={styles.wrapper} ref={wrapperRef}>
       <pre
-        className={`language-${language} ${pluginsClassName}`}
-        {...pluginsAttribute}
+        className={className}
+        tabIndex={0}
+        {...attributes}
         {...outputAttribute}
       >
         <code className={`language-${language}`}>{children}</code>
diff --git a/src/components/templates/page/page-layout.tsx b/src/components/templates/page/page-layout.tsx
index 54b8d6e..8ff44d5 100644
--- a/src/components/templates/page/page-layout.tsx
+++ b/src/components/templates/page/page-layout.tsx
@@ -20,7 +20,6 @@ import CommentsList, {
 import TableOfContents from '@components/organisms/widgets/table-of-contents';
 import { type SendCommentVars } from '@services/graphql/api';
 import { sendComment } from '@services/graphql/comments';
-import useCodeBlocksTheme from '@utils/hooks/use-code-blocks-theme';
 import useIsMounted from '@utils/hooks/use-is-mounted';
 import Script from 'next/script';
 import { FC, HTMLAttributes, ReactNode, useRef, useState } from 'react';
@@ -181,11 +180,9 @@ const PageLayout: FC<PageLayoutProps> = ({
    * @param {MetaData} meta - The metadata.
    */
   const hasMeta = (meta: MetaData) => {
-    return Object.values(meta).every((value) => value === null);
+    return Object.values(meta).every((value) => value);
   };
 
-  useCodeBlocksTheme(bodyRef);
-
   return (
     <>
       <Script
diff --git a/src/pages/article/[slug].tsx b/src/pages/article/[slug].tsx
index a3df43b..7abbabc 100644
--- a/src/pages/article/[slug].tsx
+++ b/src/pages/article/[slug].tsx
@@ -18,11 +18,11 @@ import {
   type NextPageWithLayout,
 } from '@ts/types/app';
 import { loadTranslation, type Messages } from '@utils/helpers/i18n';
-import useAddPrismClassAttr from '@utils/hooks/use-add-prism-class-attr';
+import useAddClassName from '@utils/hooks/use-add-classname';
+import useAttributes from '@utils/hooks/use-attributes';
 import useBreadcrumb from '@utils/hooks/use-breadcrumb';
-import usePrismPlugins, {
-  type PrismPlugin,
-} from '@utils/hooks/use-prism-plugins';
+import usePrism, { type OptionalPrismPlugin } from '@utils/hooks/use-prism';
+import useQuerySelectorAll from '@utils/hooks/use-query-selector-all';
 import useReadingTime from '@utils/hooks/use-reading-time';
 import useSettings from '@utils/hooks/use-settings';
 import { GetStaticPaths, GetStaticProps } from 'next';
@@ -199,14 +199,40 @@ const ArticlePage: NextPageWithLayout<ArticlePageProps> = ({
     });
   };
 
-  const prismPlugins: PrismPlugin[] = ['command-line', 'line-numbers'];
-  const { pluginsAttribute, pluginsClassName } = usePrismPlugins(prismPlugins);
-  useAddPrismClassAttr({
-    attributes: {
-      'data-filter-output': '#output#"',
-    },
-    classNames: pluginsClassName,
-  });
+  const prismPlugins: OptionalPrismPlugin[] = ['command-line', 'line-numbers'];
+  const { attributes, className } = usePrism({ plugins: prismPlugins });
+  const lineNumbersClassName = className
+    .replace('command-line', '')
+    .replace(/\s\s+/g, ' ');
+  const commandLineClassName = className
+    .replace('line-numbers', '')
+    .replace(/\s\s+/g, ' ');
+
+  /**
+   * Replace a string with Prism classnames and attributes.
+   *
+   * @param {string} str - The found string.
+   * @returns {string} The classes and attributes.
+   */
+  const prismClassNameReplacer = (str: string): string => {
+    const wpBlockClassName = 'wp-block-code';
+    const languageArray = str.match(/language-[^\s|"]+/);
+    const languageClassName = languageArray ? `${languageArray[0]}` : '';
+
+    if (
+      str.includes('command-line') ||
+      (!str.includes('command-line') && str.includes('language-bash'))
+    ) {
+      return `class="${wpBlockClassName} ${commandLineClassName}${languageClassName}" tabindex="0" data-filter-output="#output#`;
+    }
+
+    return `class="${wpBlockClassName} ${lineNumbersClassName}${languageClassName}" tabindex="0`;
+  };
+
+  const contentWithPrismClasses = content.replaceAll(
+    /class="wp-block-code[^"]+/gm,
+    prismClassNameReplacer
+  );
 
   return (
     <>
@@ -226,7 +252,7 @@ const ArticlePage: NextPageWithLayout<ArticlePageProps> = ({
       <PageLayout
         allowComments={true}
         bodyAttributes={{
-          ...(pluginsAttribute as HTMLAttributes<HTMLDivElement>),
+          ...(attributes as HTMLAttributes<HTMLDivElement>),
         }}
         bodyClassName={styles.body}
         breadcrumb={breadcrumbItems}
@@ -254,7 +280,7 @@ const ArticlePage: NextPageWithLayout<ArticlePageProps> = ({
           />,
         ]}
       >
-        {content}
+        {contentWithPrismClasses}
       </PageLayout>
     </>
   );
diff --git a/src/styles/pages/partials/_article-prism.scss b/src/styles/pages/partials/_article-prism.scss
index 025e0c0..5412bbd 100644
--- a/src/styles/pages/partials/_article-prism.scss
+++ b/src/styles/pages/partials/_article-prism.scss
@@ -238,7 +238,7 @@
       > span {
         &::before {
           display: block;
-          content: "";
+          content: " ";
         }
 
         &[data-user]::before {
diff --git a/src/utils/helpers/strings.ts b/src/utils/helpers/strings.ts
index 5d90161..1af0ca2 100644
--- a/src/utils/helpers/strings.ts
+++ b/src/utils/helpers/strings.ts
@@ -27,3 +27,13 @@ export const slugify = (text: string): string => {
 export const capitalize = (text: string): string => {
   return text.replace(/^\w/, (firstLetter) => firstLetter.toUpperCase());
 };
+
+/**
+ * Convert a text from kebab case (foo-bar) to camel case (fooBar).
+ *
+ * @param {string} text - A text to transform.
+ * @returns {string} The text in camel case.
+ */
+export const fromKebabCaseToCamelCase = (text: string): string => {
+  return text.replace(/-./g, (x) => x[1].toUpperCase());
+};
diff --git a/src/utils/hooks/use-add-classname.tsx b/src/utils/hooks/use-add-classname.tsx
new file mode 100644
index 0000000..0584084
--- /dev/null
+++ b/src/utils/hooks/use-add-classname.tsx
@@ -0,0 +1,34 @@
+import { useCallback, useEffect } from 'react';
+
+export type UseAddClassNameProps = {
+  className: string;
+  element?: HTMLElement;
+  elements?: NodeListOf<HTMLElement> | HTMLElement[];
+};
+
+/**
+ * Add className to the given element(s).
+ *
+ * @param {UseAddClassNameProps} props - An object with classnames and one or more elements.
+ */
+const useAddClassName = ({
+  className,
+  element,
+  elements,
+}: UseAddClassNameProps) => {
+  const classNames = className.split(' ').filter((string) => string !== '');
+
+  const setClassName = useCallback(
+    (el: HTMLElement) => {
+      el.classList.add(...classNames);
+    },
+    [classNames]
+  );
+
+  useEffect(() => {
+    if (element) setClassName(element);
+    if (elements && elements.length > 0) elements.forEach(setClassName);
+  }, [element, elements, setClassName]);
+};
+
+export default useAddClassName;
diff --git a/src/utils/hooks/use-add-prism-class-attr.tsx b/src/utils/hooks/use-add-prism-class-attr.tsx
deleted file mode 100644
index 7d33cc2..0000000
--- a/src/utils/hooks/use-add-prism-class-attr.tsx
+++ /dev/null
@@ -1,60 +0,0 @@
-import { useCallback, useEffect, useState } from 'react';
-
-export type AttributesMap = {
-  [key: string]: string;
-};
-
-export type useAddPrismClassAttrProps = {
-  attributes?: AttributesMap;
-  classNames?: string;
-};
-
-/**
- * Add classnames and/or attributes to pre elements.
- *
- * @param props - An object of attributes and classnames.
- */
-const useAddPrismClassAttr = ({
-  attributes,
-  classNames,
-}: useAddPrismClassAttrProps) => {
-  const [elements, setElements] = useState<HTMLPreElement[]>([]);
-
-  useEffect(() => {
-    const targetElements = document.querySelectorAll('pre');
-    setElements(Array.from(targetElements));
-  }, []);
-
-  const setClassNameAndAttributes = useCallback(
-    (array: HTMLElement[]) => {
-      array.forEach((el) => {
-        if (classNames) {
-          const classNamesArray = classNames.split(' ');
-          const isCommandLine = el.classList.contains('command-line');
-          const removedClassName = isCommandLine
-            ? 'line-numbers'
-            : 'command-line';
-          const filteredClassNames = classNamesArray.filter(
-            (className) => className !== removedClassName
-          );
-          filteredClassNames.forEach((className) =>
-            el.classList.add(className)
-          );
-        }
-
-        if (attributes) {
-          for (const [key, value] of Object.entries(attributes)) {
-            el.setAttribute(key, value);
-          }
-        }
-      });
-    },
-    [attributes, classNames]
-  );
-
-  useEffect(() => {
-    if (elements.length > 0) setClassNameAndAttributes(elements);
-  }, [elements, setClassNameAndAttributes]);
-};
-
-export default useAddPrismClassAttr;
diff --git a/src/utils/hooks/use-attributes.tsx b/src/utils/hooks/use-attributes.tsx
index 97a7b43..6d18048 100644
--- a/src/utils/hooks/use-attributes.tsx
+++ b/src/utils/hooks/use-attributes.tsx
@@ -1,10 +1,15 @@
-import { useEffect } from 'react';
+import { fromKebabCaseToCamelCase } from '@utils/helpers/strings';
+import { useCallback, useEffect } from 'react';
 
 export type useAttributesProps = {
   /**
    * An HTML element.
    */
   element?: HTMLElement;
+  /**
+   * A node list of HTML Element.
+   */
+  elements?: NodeListOf<HTMLElement> | HTMLElement[];
   /**
    * The attribute name.
    */
@@ -20,14 +25,28 @@ export type useAttributesProps = {
  *
  * @param props - An object with element, attribute name and value.
  */
-const useAttributes = ({ element, attribute, value }: useAttributesProps) => {
+const useAttributes = ({
+  element,
+  elements,
+  attribute,
+  value,
+}: useAttributesProps) => {
+  const setAttribute = useCallback(
+    (el: HTMLElement) => {
+      if (attribute.startsWith('data')) {
+        el.setAttribute(attribute, value);
+      } else {
+        const camelCaseAttribute = fromKebabCaseToCamelCase(attribute);
+        el.dataset[camelCaseAttribute] = value;
+      }
+    },
+    [attribute, value]
+  );
+
   useEffect(() => {
-    if (element) {
-      element.dataset[attribute] = value;
-    } else {
-      document.documentElement.dataset[attribute] = value;
-    }
-  }, [attribute, element, value]);
+    if (element) setAttribute(element);
+    if (elements && elements.length > 0) elements.forEach(setAttribute);
+  }, [element, elements, setAttribute]);
 };
 
 export default useAttributes;
diff --git a/src/utils/hooks/use-code-blocks-theme.tsx b/src/utils/hooks/use-code-blocks-theme.tsx
deleted file mode 100644
index beb7b29..0000000
--- a/src/utils/hooks/use-code-blocks-theme.tsx
+++ /dev/null
@@ -1,22 +0,0 @@
-import { usePrismTheme } from '@utils/providers/prism-theme';
-import { useRouter } from 'next/router';
-import { RefObject, useEffect, useState } from 'react';
-import useIsMounted from './use-is-mounted';
-
-const useCodeBlocksTheme = (el: RefObject<HTMLDivElement>) => {
-  const [preElements, setPreElements] = useState<NodeListOf<HTMLPreElement>>();
-  const isMounted = useIsMounted(el);
-  const { setCodeBlocks } = usePrismTheme();
-  const { asPath } = useRouter();
-
-  useEffect(() => {
-    const result = document.querySelectorAll<HTMLPreElement>('pre');
-    setPreElements(result);
-  }, [asPath]);
-
-  useEffect(() => {
-    isMounted && preElements && setCodeBlocks(preElements);
-  }, [isMounted, preElements, setCodeBlocks]);
-};
-
-export default useCodeBlocksTheme;
diff --git a/src/utils/hooks/use-prism-plugins.tsx b/src/utils/hooks/use-prism-plugins.tsx
deleted file mode 100644
index c4959ac..0000000
--- a/src/utils/hooks/use-prism-plugins.tsx
+++ /dev/null
@@ -1,115 +0,0 @@
-import Prism from 'prismjs';
-import { useEffect, useMemo } from 'react';
-import { useIntl } from 'react-intl';
-
-export type PrismPlugin =
-  | 'autoloader'
-  | 'color-scheme'
-  | 'command-line'
-  | 'copy-to-clipboard'
-  | 'diff-highlight'
-  | 'inline-color'
-  | 'line-highlight'
-  | 'line-numbers'
-  | 'match-braces'
-  | 'normalize-whitespace'
-  | 'show-language'
-  | 'toolbar';
-
-/**
- * Import and configure all given Prism plugins.
- *
- * @param {PrismPlugin[]} prismPlugins - The Prism plugins to activate.
- */
-const loadPrismPlugins = async (prismPlugins: PrismPlugin[]) => {
-  for (const plugin of prismPlugins) {
-    try {
-      if (plugin === 'color-scheme') {
-        await import(`@utils/plugins/prism-${plugin}`);
-      } else {
-        await import(`prismjs/plugins/${plugin}/prism-${plugin}.min.js`);
-      }
-
-      if (plugin === 'autoloader') {
-        Prism.plugins.autoloader.languages_path = '/prism/';
-      }
-    } catch (error) {
-      console.error(
-        'usePrismPlugins: an error occurred while loading Prism plugins.'
-      );
-      console.error(error);
-    }
-  }
-};
-
-/**
- * Load both the given Prism plugins and the default plugins.
- *
- * @param {PrismPlugin[]} plugins - The Prism plugins to activate.
- */
-const usePrismPlugins = (plugins: PrismPlugin[]) => {
-  const intl = useIntl();
-
-  const copyText = intl.formatMessage({
-    defaultMessage: 'Copy',
-    description: 'usePrismPlugins: copy button text (not clicked)',
-    id: 'FIE/eC',
-  });
-  const copiedText = intl.formatMessage({
-    defaultMessage: 'Copied!',
-    description: 'usePrismPlugins: copy button text (clicked)',
-    id: 'MzLdEl',
-  });
-  const errorText = intl.formatMessage({
-    defaultMessage: 'Use Ctrl+c to copy',
-    description: 'usePrismPlugins: copy button error text',
-    id: '0XePFn',
-  });
-  const darkTheme = intl.formatMessage({
-    defaultMessage: 'Dark Theme 🌙',
-    description: 'usePrismPlugins: toggle dark theme button text',
-    id: 'jo9vr5',
-  });
-  const lightTheme = intl.formatMessage({
-    defaultMessage: 'Light Theme 🌞',
-    description: 'usePrismPlugins: toggle light theme button text',
-    id: '6EUEtH',
-  });
-
-  const attributes = {
-    'data-prismjs-copy': copyText,
-    'data-prismjs-copy-success': copiedText,
-    'data-prismjs-copy-error': errorText,
-    'data-prismjs-color-scheme-dark': darkTheme,
-    'data-prismjs-color-scheme-light': lightTheme,
-  };
-
-  const defaultPlugins: PrismPlugin[] = useMemo(
-    () => [
-      'toolbar',
-      'autoloader',
-      'show-language',
-      'copy-to-clipboard',
-      'color-scheme',
-      'match-braces',
-      'normalize-whitespace',
-    ],
-    []
-  );
-
-  useEffect(() => {
-    loadPrismPlugins([...defaultPlugins, ...plugins]).then(() => {
-      Prism.highlightAll();
-    });
-  }, [defaultPlugins, plugins]);
-
-  const defaultPluginsClasses = 'match-braces';
-  const pluginsClasses = plugins.join(' ');
-
-  return {
-    pluginsAttribute: attributes,
-    pluginsClassName: `${defaultPluginsClasses} ${pluginsClasses}`,
-  };
-};
-
-export default usePrismPlugins;
diff --git a/src/utils/hooks/use-prism.tsx b/src/utils/hooks/use-prism.tsx
new file mode 100644
index 0000000..ef1a4c8
--- /dev/null
+++ b/src/utils/hooks/use-prism.tsx
@@ -0,0 +1,182 @@
+import Prism from 'prismjs';
+import { useEffect, useMemo } from 'react';
+import { useIntl } from 'react-intl';
+
+const PRISM_PLUGINS = [
+  'autoloader',
+  'color-scheme',
+  'command-line',
+  'copy-to-clipboard',
+  'diff-highlight',
+  'inline-color',
+  'line-highlight',
+  'line-numbers',
+  'match-braces',
+  'normalize-whitespace',
+  'show-language',
+  'toolbar',
+] as const;
+
+export type PrismPlugin = typeof PRISM_PLUGINS[number];
+
+export type DefaultPrismPlugin = Extract<
+  PrismPlugin,
+  | 'autoloader'
+  | 'color-scheme'
+  | 'copy-to-clipboard'
+  | 'match-braces'
+  | 'normalize-whitespace'
+  | 'show-language'
+  | 'toolbar'
+>;
+
+export type OptionalPrismPlugin = Exclude<PrismPlugin, DefaultPrismPlugin>;
+
+export type PrismLanguage =
+  | 'apacheconf'
+  | 'bash'
+  | 'css'
+  | 'diff'
+  | 'docker'
+  | 'editorconfig'
+  | 'ejs'
+  | 'git'
+  | 'graphql'
+  | 'html'
+  | 'ignore'
+  | 'ini'
+  | 'javascript'
+  | 'jsdoc'
+  | 'json'
+  | 'jsx'
+  | 'makefile'
+  | 'markup'
+  | 'php'
+  | 'phpdoc'
+  | 'regex'
+  | 'scss'
+  | 'shell-session'
+  | 'smarty'
+  | 'tcl'
+  | 'toml'
+  | 'tsx'
+  | 'twig'
+  | 'yaml';
+
+export type PrismAttributes = {
+  'data-prismjs-copy': string;
+  'data-prismjs-copy-success': string;
+  'data-prismjs-copy-error': string;
+  'data-prismjs-color-scheme-dark': string;
+  'data-prismjs-color-scheme-light': string;
+};
+
+export type UsePrismProps = {
+  language?: PrismLanguage;
+  plugins: OptionalPrismPlugin[];
+};
+
+export type UsePrismReturn = {
+  attributes: PrismAttributes;
+  className: string;
+};
+
+/**
+ * Import and configure all given Prism plugins.
+ *
+ * @param {PrismPlugin[]} plugins - The Prism plugins to activate.
+ */
+const loadPrismPlugins = async (plugins: PrismPlugin[]) => {
+  for (const plugin of plugins) {
+    try {
+      if (plugin === 'color-scheme') {
+        await import(`@utils/plugins/prism-${plugin}`);
+      } else {
+        await import(`prismjs/plugins/${plugin}/prism-${plugin}.min.js`);
+      }
+
+      if (plugin === 'autoloader') {
+        Prism.plugins.autoloader.languages_path = '/prism/';
+      }
+    } catch (error) {
+      console.error('usePrism: an error occurred while loading Prism plugins.');
+      console.error(error);
+    }
+  }
+};
+
+/**
+ * Use Prism and its plugins.
+ *
+ * @param {UsePrismProps} props - An object of options.
+ * @returns {UsePrismReturn} An object of data.
+ */
+const usePrism = ({ language, plugins }: UsePrismProps): UsePrismReturn => {
+  /**
+   * The order matter. Toolbar must be loaded before some other plugins.
+   */
+  const defaultPlugins: DefaultPrismPlugin[] = useMemo(
+    () => [
+      'toolbar',
+      'autoloader',
+      'show-language',
+      'copy-to-clipboard',
+      'color-scheme',
+      'match-braces',
+      'normalize-whitespace',
+    ],
+    []
+  );
+
+  useEffect(() => {
+    loadPrismPlugins([...defaultPlugins, ...plugins]).then(() => {
+      Prism.highlightAll();
+    });
+  }, [defaultPlugins, plugins]);
+
+  const defaultClassName = 'match-braces';
+  const languageClassName = language ? `language-${language}` : '';
+  const pluginsClassName = plugins.join(' ');
+  const className = `${defaultClassName} ${pluginsClassName} ${languageClassName}`;
+
+  const intl = useIntl();
+  const copyText = intl.formatMessage({
+    defaultMessage: 'Copy',
+    description: 'usePrism: copy button text (not clicked)',
+    id: '6GySNl',
+  });
+  const copiedText = intl.formatMessage({
+    defaultMessage: 'Copied!',
+    description: 'usePrism: copy button text (clicked)',
+    id: 'nsw6Th',
+  });
+  const errorText = intl.formatMessage({
+    defaultMessage: 'Use Ctrl+c to copy',
+    description: 'usePrism: copy button error text',
+    id: 'lKhTGM',
+  });
+  const darkTheme = intl.formatMessage({
+    defaultMessage: 'Dark Theme 🌙',
+    description: 'usePrism: toggle dark theme button text',
+    id: 'QLisK6',
+  });
+  const lightTheme = intl.formatMessage({
+    defaultMessage: 'Light Theme 🌞',
+    description: 'usePrism: toggle light theme button text',
+    id: 'hHVgW3',
+  });
+  const attributes = {
+    'data-prismjs-copy': copyText,
+    'data-prismjs-copy-success': copiedText,
+    'data-prismjs-copy-error': errorText,
+    'data-prismjs-color-scheme-dark': darkTheme,
+    'data-prismjs-color-scheme-light': lightTheme,
+  };
+
+  return {
+    attributes,
+    className,
+  };
+};
+
+export default usePrism;
diff --git a/src/utils/hooks/use-query-selector-all.tsx b/src/utils/hooks/use-query-selector-all.tsx
index dbeec90..6ac8a08 100644
--- a/src/utils/hooks/use-query-selector-all.tsx
+++ b/src/utils/hooks/use-query-selector-all.tsx
@@ -1,14 +1,22 @@
+import { useRouter } from 'next/router';
 import { useEffect, useState } from 'react';
 
+/**
+ * Use `document.querySelectorAll`.
+ *
+ * @param {string} query - A query.
+ * @returns {NodeListOf<HTMLElementTagNameMap[T]|undefined>} - The node list.
+ */
 const useQuerySelectorAll = <T extends keyof HTMLElementTagNameMap>(
   query: string
-) => {
+): NodeListOf<HTMLElementTagNameMap[T]> | undefined => {
   const [elements, setElements] =
     useState<NodeListOf<HTMLElementTagNameMap[T]>>();
+  const { asPath } = useRouter();
 
   useEffect(() => {
     setElements(document.querySelectorAll(query));
-  }, [query]);
+  }, [asPath, query]);
 
   return elements;
 };
diff --git a/src/utils/providers/prism-theme.tsx b/src/utils/providers/prism-theme.tsx
index 23a2a36..dd8feb7 100644
--- a/src/utils/providers/prism-theme.tsx
+++ b/src/utils/providers/prism-theme.tsx
@@ -1,4 +1,6 @@
-import { LocalStorage } from '@services/local-storage';
+import useAttributes from '@utils/hooks/use-attributes';
+import useLocalStorage from '@utils/hooks/use-local-storage';
+import useQuerySelectorAll from '@utils/hooks/use-query-selector-all';
 import {
   createContext,
   FC,
@@ -10,7 +12,7 @@ import {
 } from 'react';
 
 export type PrismTheme = 'dark' | 'light' | 'system';
-export type ResolvedPrismTheme = 'dark' | 'light';
+export type ResolvedPrismTheme = Exclude<PrismTheme, 'system'>;
 
 export type UsePrismThemeProps = {
   themes: PrismTheme[];
@@ -18,7 +20,6 @@ export type UsePrismThemeProps = {
   setTheme: (theme: PrismTheme) => void;
   resolvedTheme?: ResolvedPrismTheme;
   codeBlocks?: NodeListOf<HTMLPreElement>;
-  setCodeBlocks: (codeBlocks: NodeListOf<HTMLPreElement>) => void;
 };
 
 export type PrismThemeProviderProps = {
@@ -33,14 +34,16 @@ export const PrismThemeContext = createContext<UsePrismThemeProps>({
   setTheme: (_) => {
     // This is intentional.
   },
-  setCodeBlocks: (_) => {
-    // This is intentional.
-  },
 });
 
 export const usePrismTheme = () => useContext(PrismThemeContext);
 
-const prefersDarkScheme = () => {
+/**
+ * Check if user prefers dark color scheme.
+ *
+ * @returns {boolean|undefined} True if `prefers-color-scheme` is set to `dark`.
+ */
+const prefersDarkScheme = (): boolean | undefined => {
   if (typeof window === 'undefined') return;
 
   return (
@@ -49,40 +52,35 @@ const prefersDarkScheme = () => {
   );
 };
 
+/**
+ * Check if a given string is a Prism theme name.
+ *
+ * @param {string} theme - A string.
+ * @returns {boolean} True if the given string match a Prism theme name.
+ */
 const isValidTheme = (theme: string): boolean => {
   return theme === 'dark' || theme === 'light' || theme === 'system';
 };
 
-const getTheme = (key: string): PrismTheme | undefined => {
-  if (typeof window === 'undefined') return undefined;
-  const storageValue = LocalStorage.get<string>(key);
-
-  return storageValue && isValidTheme(storageValue)
-    ? (storageValue as PrismTheme)
-    : undefined;
-};
-
 export const PrismThemeProvider: FC<PrismThemeProviderProps> = ({
   attribute = 'data-prismjs-color-scheme-current',
   storageKey = 'prismjs-color-scheme',
   themes = ['dark', 'light', 'system'],
   children,
 }) => {
+  /**
+   * Retrieve the theme to use depending on `prefers-color-scheme`.
+   */
   const getThemeFromSystem = useCallback(() => {
     return prefersDarkScheme() ? 'dark' : 'light';
   }, []);
 
-  const [prismTheme, setPrismTheme] = useState<PrismTheme>(
-    getTheme(storageKey) || 'system'
-  );
-
-  const updateTheme = (theme: PrismTheme) => {
-    setPrismTheme(theme);
-  };
+  const { value: prismTheme, setValue: setPrismTheme } =
+    useLocalStorage<PrismTheme>(storageKey, 'system');
 
   useEffect(() => {
-    LocalStorage.set(storageKey, prismTheme);
-  }, [prismTheme, storageKey]);
+    if (!isValidTheme(prismTheme)) setPrismTheme('system');
+  }, [prismTheme, setPrismTheme]);
 
   const [resolvedTheme, setResolvedTheme] = useState<ResolvedPrismTheme>();
 
@@ -109,22 +107,12 @@ export const PrismThemeProvider: FC<PrismThemeProviderProps> = ({
         .removeEventListener('change', updateResolvedTheme);
   }, [updateResolvedTheme]);
 
-  const [preTags, setPreTags] = useState<NodeListOf<HTMLPreElement>>();
-
-  const updatePreTags = useCallback((tags: NodeListOf<HTMLPreElement>) => {
-    setPreTags(tags);
-  }, []);
-
-  const updatePreTagsAttribute = useCallback(() => {
-    preTags?.forEach((pre) => {
-      pre.setAttribute(attribute, prismTheme);
-    });
-  }, [attribute, preTags, prismTheme]);
-
-  useEffect(() => {
-    updatePreTagsAttribute();
-  }, [updatePreTagsAttribute, prismTheme]);
+  const preTags = useQuerySelectorAll<'pre'>('pre');
+  useAttributes({ elements: preTags, attribute, value: prismTheme });
 
+  /**
+   * Listen for changes on pre attributes and update theme.
+   */
   const listenAttributeChange = useCallback(
     (pre: HTMLPreElement) => {
       var observer = new MutationObserver(function (mutations) {
@@ -139,15 +127,12 @@ export const PrismThemeProvider: FC<PrismThemeProviderProps> = ({
         attributeFilter: [attribute],
       });
     },
-    [attribute]
+    [attribute, setPrismTheme]
   );
 
   useEffect(() => {
     if (!preTags) return;
-
-    preTags.forEach((pre) => {
-      listenAttributeChange(pre);
-    });
+    preTags.forEach(listenAttributeChange);
   }, [preTags, listenAttributeChange]);
 
   return (
@@ -155,9 +140,8 @@ export const PrismThemeProvider: FC<PrismThemeProviderProps> = ({
       value={{
         themes,
         theme: prismTheme,
-        setTheme: updateTheme,
+        setTheme: setPrismTheme,
         codeBlocks: preTags,
-        setCodeBlocks: updatePreTags,
         resolvedTheme,
       }}
     >
-- 
cgit v1.2.3

