added search

gatsby-config.js

@@ -130,6 +130,56 @@ module.exports = {
         ],
       },
     },
+    {
+      resolve: 'gatsby-plugin-local-search',
+      options: {
+        name: 'pages',
+        engine: 'flexsearch',
+        engineOptions: 'speed',
+        query: `
+          {
+            allMarkdownRemark(filter: { frontmatter: { templateKey: { eq: "article" } } }) {
+              nodes {
+                id
+                frontmatter {
+                  slug
+                  title
+                  category
+                  image {
+                    childImageSharp {
+                      fluid(maxWidth: 960) {
+                        aspectRatio
+                        base64
+                        sizes
+                        src
+                        srcSet
+                      }
+                    }
+                  }
+                  tags
+                  description
+                }
+                rawMarkdownBody
+              }
+            }
+          }
+        `,
+        ref: 'id',
+        index: ['title', 'category', 'body', 'tags', 'description'],
+        store: ['id', 'slug', 'title', 'category', 'tags', 'description', 'image'],
+        normalizer: ({ data }) =>
+          data.allMarkdownRemark.nodes.map(node => ({
+            id: node.id,
+            slug: node.frontmatter.slug,
+            title: node.frontmatter.title,
+            category: node.frontmatter.category,
+            description: node.frontmatter.description,
+            image: node.frontmatter.image,
+            tags: node.frontmatter.tags,
+            body: node.rawMarkdownBody,
+          })),
+      },
+    },
     {
       resolve: 'gatsby-plugin-react-svg',
       options: {

package-lock.json

@@ -8227,6 +8227,11 @@
         "normalize.css": "^7.0.0"
       }
     },
+    "flexsearch": {
+      "version": "0.6.32",
+      "resolved": "https://registry.npmjs.org/flexsearch/-/flexsearch-0.6.32.tgz",
+      "integrity": "sha512-EF1BWkhwoeLtbIlDbY/vDSLBen/E5l/f1Vg7iX5CDymQCamcx1vhlc3tIZxIDplPjgi0jhG37c67idFbjg+v+Q=="
+    },
     "flush-write-stream": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/flush-write-stream/-/flush-write-stream-1.1.1.tgz",
@@ -8717,6 +8722,25 @@
         "micromatch": "^3.1.10"
       }
     },
+    "gatsby-plugin-local-search": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/gatsby-plugin-local-search/-/gatsby-plugin-local-search-1.1.1.tgz",
+      "integrity": "sha512-OU0IR0Gi6ExZ3bzB0j6pR1rnnBPNGh3BEoRDAfvDeP9+U9rqzrPV053cr+Ueq0snEnlisPXu+vIv9Hd04esPnw==",
+      "requires": {
+        "flexsearch": "^0.6.32",
+        "lodash.lowerfirst": "^4.3.1",
+        "lodash.pick": "^4.4.0",
+        "lunr": "^2.3.8",
+        "pascalcase": "^1.0.0"
+      },
+      "dependencies": {
+        "pascalcase": {
+          "version": "1.0.0",
+          "resolved": "https://registry.npmjs.org/pascalcase/-/pascalcase-1.0.0.tgz",
+          "integrity": "sha512-BSExi0rRnCHReJys6NocaK+cfTXNinAegfWBvr0JD3hiaEG7Nuc7r0CIdOJunXrs8gU/sbHQ9dxVAtiVQisjmg=="
+        }
+      }
+    },
     "gatsby-plugin-manifest": {
       "version": "2.4.17",
       "resolved": "https://registry.npmjs.org/gatsby-plugin-manifest/-/gatsby-plugin-manifest-2.4.17.tgz",
@@ -12703,6 +12727,11 @@
       "resolved": "https://registry.npmjs.org/lodash.isequal/-/lodash.isequal-4.5.0.tgz",
       "integrity": "sha1-QVxEePK8wwEgwizhDtMib30+GOA="
     },
+    "lodash.lowerfirst": {
+      "version": "4.3.1",
+      "resolved": "https://registry.npmjs.org/lodash.lowerfirst/-/lodash.lowerfirst-4.3.1.tgz",
+      "integrity": "sha1-3jx7EuAsZSSgBZwvbLfFxSZVoT0="
+    },
     "lodash.map": {
       "version": "4.6.0",
       "resolved": "https://registry.npmjs.org/lodash.map/-/lodash.map-4.6.0.tgz",
@@ -12718,6 +12747,11 @@
       "resolved": "https://registry.npmjs.org/lodash.memoize/-/lodash.memoize-4.1.2.tgz",
       "integrity": "sha1-vMbEmkKihA7Zl/Mj6tpezRguC/4="
     },
+    "lodash.pick": {
+      "version": "4.4.0",
+      "resolved": "https://registry.npmjs.org/lodash.pick/-/lodash.pick-4.4.0.tgz",
+      "integrity": "sha1-UvBWEP/53tQiYRRB7R/BI6AwAbM="
+    },
     "lodash.throttle": {
       "version": "4.1.1",
       "resolved": "https://registry.npmjs.org/lodash.throttle/-/lodash.throttle-4.1.1.tgz",
@@ -12908,6 +12942,11 @@
         "yallist": "^2.0.0"
       }
     },
+    "lunr": {
+      "version": "2.3.8",
+      "resolved": "https://registry.npmjs.org/lunr/-/lunr-2.3.8.tgz",
+      "integrity": "sha512-oxMeX/Y35PNFuZoHp+jUj5OSEmLCaIH4KTFJh7a93cHBoFmpw2IoPs22VIz7vyO2YUnx2Tn9dzIwO2P/4quIRg=="
+    },
     "magic-string": {
       "version": "0.25.7",
       "resolved": "https://registry.npmjs.org/magic-string/-/magic-string-0.25.7.tgz",
@@ -17027,6 +17066,14 @@
         }
       }
     },
+    "react-use-flexsearch": {
+      "version": "0.1.1",
+      "resolved": "https://registry.npmjs.org/react-use-flexsearch/-/react-use-flexsearch-0.1.1.tgz",
+      "integrity": "sha512-UDRDB26HPcAo0gXNkUYYkcjoYCW4FSWr7Ich4adgVr7bqefJG7fnjlcqnwsKQkbZuteRLYzzox+1FKRTt3Z5vg==",
+      "requires": {
+        "flexsearch": "^0.6.22"
+      }
+    },
     "react-virtualized-auto-sizer": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/react-virtualized-auto-sizer/-/react-virtualized-auto-sizer-1.0.2.tgz",

package.json

@@ -19,6 +19,7 @@
     "esm": "^3.2.25",
     "gatsby": "^2.23.12",
     "gatsby-image": "^2.4.12",
+    "gatsby-plugin-local-search": "^1.1.1",
     "gatsby-plugin-manifest": "^2.4.17",
     "gatsby-plugin-netlify-cms": "^4.3.9",
     "gatsby-plugin-react-helmet": "^3.3.8",
@@ -36,11 +37,13 @@
     "node-sass": "^4.14.1",
     "prismjs": "^1.20.0",
     "prop-types": "^15.7.2",
+    "query-string": "^6.13.1",
     "react": "^16.12.0",
     "react-dom": "^16.12.0",
     "react-flexbox-grid": "^2.1.2",
     "react-github-btn": "^1.2.0",
-    "react-helmet": "^6.1.0"
+    "react-helmet": "^6.1.0",
+    "react-use-flexsearch": "^0.1.1"
   },
   "devDependencies": {
     "prettier": "2.0.5"

src/components/Article/Article.js

@@ -16,7 +16,7 @@ const Article = ({ data: { slug, keywords, title, image, description, category,
   const { siteMetadata: { siteUrl } } = useSiteMetadataQuery()
   return (
     <>
-      <SEO title={title} keywords={keywords.join(', ')} description={description} image={`${siteUrl}${image.childImageSharp.fluid.src}`} type='article' />
+      <SEO title={title} titleTemplate={false} keywords={keywords.join(', ')} description={description} image={`${siteUrl}${image.childImageSharp.fluid.src}`} type='article' />
       <div className="article">
         <article>
           <div className="article-info">
@@ -31,7 +31,7 @@ const Article = ({ data: { slug, keywords, title, image, description, category,
             </div>
             <div className="right-info">
               <div className="article-info__date">
-                <span>{new Date(date).toLocaleDateString()}</span>
+                <span>{date}</span>
               </div> 
             </div>
           </div>

src/components/Articles/Categories/Categories.js

@@ -1,10 +1,10 @@
 import React from 'react';
 import { Link } from 'gatsby'
 
-const Categories = ({ children }) => {
+const Categories = ({ children, pathname }) => {
   return (
     <div className="articles-categories">
-      <div className="tag-item">
+      <div className={pathname === `/articles` ? 'tag-item active' : 'tag-item'}>
         <Link to='/articles'>Все</Link>
       </div>
       {children}

src/components/Articles/Search/Search.js

@@ -1,11 +1,24 @@
 import React from 'react'
+import { navigate } from 'gatsby'
 import PropTypes from 'prop-types'
 
-const Search = ({ articlesLength }) => {
+const Search = ({ articlesLength, resultsLength, query, setQuery }) => {
+	const handleInput = e => {
+		const query = e.target.value
+		if (query === '') {
+			navigate('/articles')
+			setQuery('')
+			return null
+		}
+		
+		navigate(`/articles/?search=${query.trim()}`)
+		setQuery(query)
+	}
+
 	return (
 		<div className="articles-search">
-			<input placeholder="Напишите сюда чтобы отфильтровать статьи" type="text" />
+			<input onChange={e => handleInput(e)} value={query} placeholder="Напишите сюда чтобы отфильтровать статьи" type="text" />
-			<span>{articlesLength}</span>
+			<span>{query === '' ? articlesLength : resultsLength}</span>
     </div>
 	)	
 }

src/components/Header/Header.js

@@ -30,7 +30,7 @@ const Header = () => {
   const renderLinks = () => {
     return (
       <ul>
-        {menuLinks.map((page, i) => <li key={i} className={page.link === pathname ? 'active' : null}><Link to={page.link}>{page.name}</Link></li>)}
+        {menuLinks.map((page, i) => <li key={i} className={page.link === pathname || pathname === `${page.link}/` ? 'active' : null}><Link to={page.link}>{page.name}</Link></li>)}
       </ul>
     )
   }

src/components/SEO/SEO.js

@@ -4,12 +4,13 @@ import PropTypes from 'prop-types'
 import { Helmet } from 'react-helmet'
 import { useLocation } from '@reach/router'
 
-const SEO = ({ title, keywords, description, image, type, canonical }) => {
+const SEO = ({ title, titleTemplate, keywords, description, image, type, canonical }) => {
   const { pathname } = useLocation()
   const { siteMetadata } = useSiteMetadataQuery()
 
   const seo = {
     title: title || siteMetadata.title,
+    titleTemplate: true,
     siteName: siteMetadata.siteName,
     type: type || 'website',
     image: image || 'custom image url...',
@@ -20,7 +21,8 @@ const SEO = ({ title, keywords, description, image, type, canonical }) => {
   }
  
   return (
-    <Helmet title={seo.title} titleTemplate={siteMetadata.titleTemplate}>
+    <Helmet title={seo.title} titleTemplate={titleTemplate === false ? null : siteMetadata.titleTemplate}>
+      <html lang="ru" />
       <meta name="description" content={seo.description} />
       {seo.keywords && (
         <meta name='keywords' content={seo.keywords} />

src/helpers/toFrontmatter.js

@@ -0,0 +1,13 @@
+const toFrontmatter = array => {
+  return {
+    edges: array.map(el => {
+      return {
+        node: {
+          frontmatter: el
+        }
+      }
+    })
+  }
+}
+
+export default toFrontmatter

src/images/search-icon.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" focusable="false" width="1em" height="1em" style="msTransform: rotate(360deg); WebkitTransform: rotate(360deg); transform: rotate(360deg);" preserveAspectRatio="xMidYMid meet" viewBox="0 0 36 36"><path fill="#9AAAB4" d="M27.388 24.642L24.56 27.47l-4.95-4.95l2.828-2.828z"/><path fill="#66757F" d="M34.683 29.11l-5.879-5.879a2 2 0 0 0-2.828 0l-2.828 2.828a2 2 0 0 0 0 2.828l5.879 5.879a4 4 0 1 0 5.656-5.656z"/><circle fill="#8899A6" cx="13.586" cy="13.669" r="13.5"/><circle fill="#BBDDF5" cx="13.586" cy="13.669" r="9.5"/><rect x="0" y="0" width="36" height="36" fill="rgba(0, 0, 0, 0)" /></svg>

src/pages/404.js

@@ -2,11 +2,13 @@ import React from 'react';
 import { Main } from '../ui/ui'
 import { Grid } from 'react-flexbox-grid'
 import { Link } from 'gatsby'
+import SEO from '../components/SEO/SEO'
 import Layout from '../components/Layout/Layout'
 
 const NotFound = () => {
   return (
     <Layout>
+      <SEO />
       <Main>
         <Grid fluid>
           <div className="error">

src/pages/articles.js

@@ -2,7 +2,12 @@ import React from "react"
 import { Main } from '../ui/ui'
 import { Grid, Row, Col } from 'react-flexbox-grid'
 import { graphql } from 'gatsby'
+import { useFlexSearch } from 'react-use-flexsearch'
+import { useLocation } from '@reach/router'
+import * as queryString from 'query-string'
+import toFrontmatter from '../helpers/toFrontmatter'
 import useCategoriesQuery from '../hooks/useCategoriesQuery'
+
 import SEO from '../components/SEO/SEO'
 import Layout from '../components/Layout/Layout'
 import Articles from '../components/Articles/Articles'
@@ -12,8 +17,20 @@ import Search from '../components/Articles/Search/Search'
 import Offers from '../components/Offers/Offers'
 import Newsletter from '../components/Newsletter/Newsletter'
 
-const ArticlesPage = ({ data: { allMarkdownRemark: edges } }) => {
+import SearchIcon from '../images/search-icon.svg'
+
+const ArticlesPage = ({ data: { allMarkdownRemark: edges, localSearchPages }, }) => {
   const { categories } = useCategoriesQuery()
+  const { search, pathname } = useLocation()
+  
+  const [query, setQuery] = React.useState(queryString.parse(search).search || '')
+
+  const results = useFlexSearch(
+    query,
+    localSearchPages.index,
+    JSON.parse(localSearchPages.store)
+  )
+
   return (
     <Layout>
       <SEO title='Статьи' />
@@ -25,16 +42,22 @@ const ArticlesPage = ({ data: { allMarkdownRemark: edges } }) => {
                 <div className="articles-heading">
                   <h1>Статьи</h1>
                 </div>
-                <Categories>
+                <Categories pathname={pathname}>
                   {categories.map(({ node }, i) => <CategoryItem key={i} title={node.frontmatter.title} />)}
                 </Categories>
-                <Search articlesLength={edges.edges.length} />
+                <Search articlesLength={edges.edges.length} resultsLength={results.length} query={query} setQuery={setQuery} />
+                <div className="articles-info">
+                  {query ? results.length === 0 ? <p><SearchIcon />&nbsp;&nbsp;Ничего не найдено</p> : null : null}
+                </div>
               </div>
             </Col>
           </Row>
           <Row>
             <Col lg={9} xs={12}>
-              <Articles data={edges} /> 
+              {query 
+                ? results.length > 0 ? <Articles data={toFrontmatter(results)} /> : null
+                : <Articles data={edges} />
+              }
               <Newsletter />
             </Col >
             <Col lg={3} xs={12}>
@@ -69,6 +92,10 @@ export const query = graphql`
         }
       }
     }
+    localSearchPages {
+      index
+      store
+    }
   } 
 `
 

src/pages/index.js

@@ -20,7 +20,7 @@ const IndexPage = ({ data: { allMarkdownRemark: edges } }) => {
             <Col xs={12}>
               <div className="articles">
                 <div className="articles-heading">
-                  <h3>Последние статьи</h3>
+                  <h1>Последние статьи</h1>
                   <Link to='/articles'>смотреть все <ArrowNext /></Link>
                 </div>
               </div>

src/templates/articleTemplate.js

@@ -47,7 +47,7 @@ export const pageQuery = graphql`
         time
         tags
         description
-        date
+        date(formatString: "D MMMM YYYY", locale: "ru-RU")
         category
       }
     }

src/templates/categoryTemplate.js

@@ -7,7 +7,6 @@ import useCategoriesQuery from '../hooks/useCategoriesQuery'
 import SEO from '../components/SEO/SEO'
 import Layout from '../components/Layout/Layout'
 import Articles from '../components/Articles/Articles'
-import Search from '../components/Articles/Search/Search'
 import Categories from '../components/Articles/Categories/Categories'
 import CategoryItem from '../components/Articles/Categories/CategoryItem'
 import Offers from '../components/Offers/Offers'
@@ -26,12 +25,11 @@ const CategoryPage = ({ data: { allMarkdownRemark: edges }, pageContext: { title
             <Col lg={9} xs={12}>
               <div className="articles">
                 <div className="articles-heading">
-                  <h1>Статьи</h1>
+                  <h1>Категория: <u>{title}</u></h1>
                 </div>
                 <Categories>
                   {categories.map(({ node }, i) => <CategoryItem key={i} title={node.frontmatter.title} />)}
                 </Categories>
-                <Search articlesLength={edges.edges.length} />
                 <div className="articles-info">
                   <p>Показано {edges.edges.length} из категории "{title}"</p>
                 </div>

src/templates/tagTemplate.js

@@ -7,7 +7,6 @@ import useCategoriesQuery from '../hooks/useCategoriesQuery'
 import SEO from '../components/SEO/SEO'
 import Layout from '../components/Layout/Layout'
 import Articles from '../components/Articles/Articles'
-import Search from '../components/Articles/Search/Search'
 import Categories from '../components/Articles/Categories/Categories'
 import CategoryItem from '../components/Articles/Categories/CategoryItem'
 import Offers from '../components/Offers/Offers'
@@ -26,12 +25,11 @@ const TagPage = ({ data: { allMarkdownRemark: edges }, pageContext: { title } })
             <Col lg={9} xs={12}>
               <div className="articles">
                 <div className="articles-heading">
-                  <h1>Статьи</h1>
+                  <h1>Тэг: <u>{title}</u></h1>
                 </div>
                 <Categories>
                   {categories.map(({ node }, i) => <CategoryItem key={i} title={node.frontmatter.title} />)}
                 </Categories>
-                <Search articlesLength={edges.edges.length} />
                 <div className="articles-info">
                   <p>Показано {edges.edges.length} по тегу "{title}"</p>
                 </div>