From 1c851271ea38826cd7a0d027b25bd12452e979fe Mon Sep 17 00:00:00 2001
From: jackyzha0 <j.zhao2k19@gmail.com>
Date: Fri, 27 Aug 2021 14:08:11 -0400
Subject: [PATCH] add search support

---
 .github/workflows/deploy.yaml    |   3 +-
 .gitignore                       |   3 +-
 assets/base.scss                 | 116 +++++++++++++++++
 assets/darkmode.scss             |  81 +++++-------
 content/_index.md                |   2 +-
 content/notes/preview-changes.md |   2 +-
 layouts/_default/single.html     |   9 +-
 layouts/partials/darkmode.html   |   3 +-
 layouts/partials/header.html     |   0
 layouts/partials/search.html     | 208 +++++++++++++++++++++++++++++++
 10 files changed, 367 insertions(+), 60 deletions(-)
 delete mode 100644 layouts/partials/header.html
 create mode 100644 layouts/partials/search.html

diff --git a/.github/workflows/deploy.yaml b/.github/workflows/deploy.yaml
index df50f6b..2190194 100644
--- a/.github/workflows/deploy.yaml
+++ b/.github/workflows/deploy.yaml
@@ -12,8 +12,9 @@ jobs:
       - uses: actions/checkout@v2
 
       - name: Build Link Index
-        uses: jackyzha0/hugo-obsidian@v2.1
+        uses: jackyzha0/hugo-obsidian@v2.3
         with:
+          index: true
           input: content
           output: data
 
diff --git a/.gitignore b/.gitignore
index c216e49..1eaad60 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,4 +3,5 @@ public
 resources
 .idea
 content/.obsidian
-data/linkIndex.yaml
\ No newline at end of file
+data/linkIndex.yaml
+data/contentIndex.yaml
\ No newline at end of file
diff --git a/assets/base.scss b/assets/base.scss
index 025c203..a1b5c7b 100644
--- a/assets/base.scss
+++ b/assets/base.scss
@@ -235,4 +235,120 @@ a[href^="/"] {
 
 .centered {
   margin-top: 30vh;
+}
+
+header {
+  display: flex;
+  flex-direction: row;
+  align-items: center;
+
+  & > nav {
+    @media all and (max-width: 600px) {
+      display: none;
+    }
+
+    & > a {
+      margin-left: 2em;
+    }
+  }
+
+  & > .spacer {
+    flex: 1 1 auto;
+  }
+
+  & > svg {
+    cursor: pointer;
+    width: 18px;
+    min-width: 18px;
+    margin: 0 1em;
+
+    &:hover .search-path {
+      stroke: var(--tertiary);
+    }
+
+    .search-path {
+      stroke: var(--gray);
+      stroke-width: 2px;
+      transition: stroke 0.5s ease;
+    }
+  }
+}
+
+#search-container {
+  position: fixed;
+  z-index: 9999;
+  left: 0;
+  top: 0;
+  width: 100vw;
+  height: 100vh;
+  display: none;
+  backdrop-filter: blur(4px);
+  -webkit-backdrop-filter: blur(4px);
+
+  & > div {
+    width: 50%;
+    margin-top: 15vh;
+    margin-left: auto;
+    margin-right: auto;
+
+    @media all and (max-width: 1200px) {
+      width: 90%;
+    }
+
+    & > * {
+      width: 100%;
+      border-radius: 4px;
+      background: var(--light);
+      box-shadow: 0 14px 50px rgba(27, 33, 48, 0.12), 0 10px 30px rgba(27, 33, 48, 0.16);
+      margin-bottom: 2em;
+    }
+
+    & > input {
+      box-sizing: border-box;
+      padding: 0.5em 1em;
+      font-family: Inter, sans-serif;
+      color: var(--dark);
+      font-size: 1.1em;
+      border: 1px solid var(--outlinegray);
+
+      &:focus {
+        outline: none;
+      }
+    }
+
+    & > #results-container {
+      & > .result-card {
+        padding: 1em;
+        cursor: pointer;
+        transition: background 0.2s ease;
+        border: 1px solid var(--outlinegray);
+        border-bottom: none;
+
+        &:hover {
+          background: rgba(180, 180, 180, 0.15);
+        }
+
+        &:first-of-type {
+          border-top-left-radius: 5px;
+          border-top-right-radius: 5px;
+        }
+
+        &:last-of-type {
+          border-bottom-left-radius: 5px;
+          border-bottom-right-radius: 5px;
+          border-bottom: 1px solid var(--outlinegray);
+        }
+
+        & > h3, & > p {
+          margin: 0;
+        }
+
+        & .search-highlight {
+          background-color: #afbfc966;
+          padding: 0.05em 0.2em;
+          border-radius: 3px;
+        }
+      }
+    }
+  }
 }
\ No newline at end of file
diff --git a/assets/darkmode.scss b/assets/darkmode.scss
index dde5be6..61967d7 100644
--- a/assets/darkmode.scss
+++ b/assets/darkmode.scss
@@ -1,67 +1,44 @@
-
 .darkmode {
-  text-align: right;
+  float: right;
+  padding: 1em;
+  min-width: 30px;
+  position: relative;
+
+  @media all and (max-width: 450px) {
+    padding: 1em;
+  }
 
   & > .toggle {
     display: none;
     box-sizing: border-box;
-
-    &:checked + .toggle-button:after {
-      left: 50%;
-    }
-
-    & + .toggle-button {
-      box-sizing: border-box;
-      outline: 0;
-      display: inline-block;
-      width: 3em;
-      height: 1.5em;
-      position: relative;
-      cursor: pointer;
-      border: 2px solid var(--gray);
-      user-select: none;
-      padding: 2px;
-      transition: all 0.2s ease;
-      border-radius: 2em;
-
-      &:after, &:before {
-        position: relative;
-        display: block;
-        box-sizing: border-box;
-        content: "";
-        width: 50%;
-        height: 100%;
-      }
-
-      &:before {
-        display: none;
-      }
-
-      &:after {
-        left: 0;
-        transition: all 0.2s ease;
-        background: var(--gray);
-        content: "";
-        border-radius: 1em;
-      }
-    }
   }
 
-  & #dayIcon {
-    position: relative;
+  & svg {
+    opacity: 0;
+    position: absolute;
     width: 20px;
     height: 20px;
-    top: -1.5px;
+    top: calc(50% - 10px);
     margin: 0 7px;
     fill: var(--gray);
+    transition: opacity 0.1s ease;
   }
+}
 
-  & #nightIcon {
-    position: relative;
-    width: 18px;
-    height: 18px;
-    top: -2px;
-    margin: 0 7px;
-    fill: var(--gray);
+.toggle:checked ~ label {
+  & > #dayIcon {
+    opacity: 0;
+  }
+  & > #nightIcon {
+    opacity: 1;
+  }
+}
+
+.toggle:not(:checked) ~ label {
+  & > #dayIcon {
+    opacity: 1;
+  }
+  & > #nightIcon {
+    opacity: 0;
   }
 }
\ No newline at end of file
diff --git a/content/_index.md b/content/_index.md
index 3d19704..b665a3d 100644
--- a/content/_index.md
+++ b/content/_index.md
@@ -1,5 +1,5 @@
 # 🌱 Quartz
-## v1.1
+## v2.0
 
 Simple second brain and [digital garden](https://jzhao.xyz/posts/digital-gardening).
 
diff --git a/content/notes/preview-changes.md b/content/notes/preview-changes.md
index 21e106a..dac619e 100644
--- a/content/notes/preview-changes.md
+++ b/content/notes/preview-changes.md
@@ -15,7 +15,7 @@ $ go install github.com/jackyzha0/hugo-obsidian
 $ cd <location-of-your-local-quartz>
 
 # Scrape all links in your Quartz folder and generate info for Quartz
-$ hugo-obsidian -input=content -output=data
+$ hugo-obsidian -input=content -output=data -index=true
 ```
 
 Afterwards, start the Hugo server as shown above and your local backlinks and interactive graph should be populated!
diff --git a/layouts/_default/single.html b/layouts/_default/single.html
index 14a3b05..1922083 100644
--- a/layouts/_default/single.html
+++ b/layouts/_default/single.html
@@ -3,11 +3,16 @@
 {{ partial "head.html" . }}
 
 <body>
+{{partial "search.html" .}}
 <div class="singlePage">
     <!-- Begin actual content -->
-    {{partial "darkmode.html" .}}
-    <article>
+    <header>
         {{if .Title}}<h1>{{ .Title }}</h1>{{end}}
+        <svg tabindex="0" id="search-icon" aria-labelledby="title desc" role="img" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 19.9 19.7"><title id="title">Search Icon</title><desc id="desc">Icon to open search</desc><g class="search-path" fill="none"><path stroke-linecap="square" d="M18.5 18.3l-5.4-5.4"/><circle cx="8" cy="8" r="7"/></g></svg>
+        <div class="spacer"></div>
+        {{partial "darkmode.html" .}}
+    </header>
+    <article>
         {{if $.Site.Data.config.enableToc}}
         <aside class="mainTOC">
             <h3>Table of Contents</h3>
diff --git a/layouts/partials/darkmode.html b/layouts/partials/darkmode.html
index 3d36d9a..d7540c2 100644
--- a/layouts/partials/darkmode.html
+++ b/layouts/partials/darkmode.html
@@ -1,12 +1,11 @@
 <div class='darkmode'>
+    <input class='toggle' id='darkmode-toggle' type='checkbox' tabindex="-1">
     <label id="toggle-label-light" for='darkmode-toggle' tabindex="-1">
         <svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" id="dayIcon" x="0px" y="0px" viewBox="0 0 35 35" style="enable-background:new 0 0 35 35;" xml:space="preserve">
             <title>Light Mode</title>
             <path d="M6,17.5C6,16.672,5.328,16,4.5,16h-3C0.672,16,0,16.672,0,17.5    S0.672,19,1.5,19h3C5.328,19,6,18.328,6,17.5z M7.5,26c-0.414,0-0.789,0.168-1.061,0.439l-2,2C4.168,28.711,4,29.086,4,29.5    C4,30.328,4.671,31,5.5,31c0.414,0,0.789-0.168,1.06-0.44l2-2C8.832,28.289,9,27.914,9,27.5C9,26.672,8.329,26,7.5,26z M17.5,6    C18.329,6,19,5.328,19,4.5v-3C19,0.672,18.329,0,17.5,0S16,0.672,16,1.5v3C16,5.328,16.671,6,17.5,6z M27.5,9    c0.414,0,0.789-0.168,1.06-0.439l2-2C30.832,6.289,31,5.914,31,5.5C31,4.672,30.329,4,29.5,4c-0.414,0-0.789,0.168-1.061,0.44    l-2,2C26.168,6.711,26,7.086,26,7.5C26,8.328,26.671,9,27.5,9z M6.439,8.561C6.711,8.832,7.086,9,7.5,9C8.328,9,9,8.328,9,7.5    c0-0.414-0.168-0.789-0.439-1.061l-2-2C6.289,4.168,5.914,4,5.5,4C4.672,4,4,4.672,4,5.5c0,0.414,0.168,0.789,0.439,1.06    L6.439,8.561z M33.5,16h-3c-0.828,0-1.5,0.672-1.5,1.5s0.672,1.5,1.5,1.5h3c0.828,0,1.5-0.672,1.5-1.5S34.328,16,33.5,16z     M28.561,26.439C28.289,26.168,27.914,26,27.5,26c-0.828,0-1.5,0.672-1.5,1.5c0,0.414,0.168,0.789,0.439,1.06l2,2    C28.711,30.832,29.086,31,29.5,31c0.828,0,1.5-0.672,1.5-1.5c0-0.414-0.168-0.789-0.439-1.061L28.561,26.439z M17.5,29    c-0.829,0-1.5,0.672-1.5,1.5v3c0,0.828,0.671,1.5,1.5,1.5s1.5-0.672,1.5-1.5v-3C19,29.672,18.329,29,17.5,29z M17.5,7    C11.71,7,7,11.71,7,17.5S11.71,28,17.5,28S28,23.29,28,17.5S23.29,7,17.5,7z M17.5,25c-4.136,0-7.5-3.364-7.5-7.5    c0-4.136,3.364-7.5,7.5-7.5c4.136,0,7.5,3.364,7.5,7.5C25,21.636,21.636,25,17.5,25z" />
         </svg>
     </label>
-    <input class='toggle' id='darkmode-toggle' type='checkbox' tabindex="-1">
-    <label class='toggle-button' for='darkmode-toggle'></label>
     <label id="toggle-label-dark" for='darkmode-toggle' tabindex="-1">
         <svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" id="nightIcon" x="0px" y="0px" viewBox="0 0 100 100" style="enable-background='new 0 0 100 100'" xml:space="preserve">
             <title>Dark Mode</title>
diff --git a/layouts/partials/header.html b/layouts/partials/header.html
deleted file mode 100644
index e69de29..0000000
diff --git a/layouts/partials/search.html b/layouts/partials/search.html
new file mode 100644
index 0000000..e2285ea
--- /dev/null
+++ b/layouts/partials/search.html
@@ -0,0 +1,208 @@
+<div id="search-container">
+    <div>
+        <input autocomplete="off" id="search-bar" name="search" type="text" aria-label="Search" placeholder="Search for something...">
+        <div id="results-container">
+        </div>
+    </div>
+</div>
+<script src="https://cdn.jsdelivr.net/gh/nextapps-de/flexsearch@0.7.2/dist/flexsearch.bundle.js"></script>
+<script>
+  // code from https://github.com/danestves/markdown-to-text
+  const removeMarkdown = (
+    markdown,
+    options = {
+      listUnicodeChar: false,
+      stripListLeaders: true,
+      gfm: true,
+      useImgAltText: false,
+      preserveLinks: false,
+    }
+  ) => {
+    let output = markdown || "";
+    output = output.replace(/^(-\s*?|\*\s*?|_\s*?){3,}\s*$/gm, "");
+
+    try {
+      if (options.stripListLeaders) {
+        if (options.listUnicodeChar)
+          output = output.replace(
+            /^([\s\t]*)([\*\-\+]|\d+\.)\s+/gm,
+            options.listUnicodeChar + " $1"
+          );
+        else output = output.replace(/^([\s\t]*)([\*\-\+]|\d+\.)\s+/gm, "$1");
+      }
+      if (options.gfm) {
+        output = output
+          .replace(/\n={2,}/g, "\n")
+          .replace(/~{3}.*\n/g, "")
+          .replace(/~~/g, "")
+          .replace(/`{3}.*\n/g, "");
+      }
+      if(options.preserveLinks) {
+        output = output.replace(/\[(.*?)\][\[\(](.*?)[\]\)]/g, "$1 ($2)")
+      }
+      output = output
+        .replace(/<[^>]*>/g, "")
+        .replace(/^[=\-]{2,}\s*$/g, "")
+        .replace(/\[\^.+?\](\: .*?$)?/g, "")
+        .replace(/\s{0,2}\[.*?\]: .*?$/g, "")
+        .replace(/\!\[(.*?)\][\[\(].*?[\]\)]/g, options.useImgAltText ? "$1" : "")
+        .replace(/\[(.*?)\][\[\(].*?[\]\)]/g, "$1")
+        .replace(/^\s{0,3}>\s?/g, "")
+        .replace(/(^|\n)\s{0,3}>\s?/g, "\n\n")
+        .replace(/^\s{1,2}\[(.*?)\]: (\S+)( ".*?")?\s*$/g, "")
+        .replace(
+          /^(\n)?\s{0,}#{1,6}\s+| {0,}(\n)?\s{0,}#{0,} {0,}(\n)?\s{0,}$/gm,
+          "$1$2$3"
+        )
+        .replace(/([\*_]{1,3})(\S.*?\S{0,1})\1/g, "$2")
+        .replace(/([\*_]{1,3})(\S.*?\S{0,1})\1/g, "$2")
+        .replace(/(`{3,})(.*?)\1/gm, "$2")
+        .replace(/`(.+?)`/g, "$1")
+        .replace(/\n{2,}/g, "\n\n");
+    } catch (e) {
+      console.error(e);
+      return markdown;
+    }
+    return output;
+  };
+</script>
+<script>
+  const contentIndex = new FlexSearch.Worker({
+    tokenize: "strict",
+    charset: "latin:advanced",
+    context: true,
+    depth: 3,
+    cache: 10,
+    suggest: true,
+  })
+
+  const scrapedContent = {{$.Site.Data.contentIndex}}
+  for (const [key, value] of Object.entries(scrapedContent)) {
+    contentIndex.add(key, value.content)
+  }
+
+  const stopwords = ['i','me','my','myself','we','our','ours','ourselves','you','your','yours','yourself','yourselves','he','him','his','himself','she','her','hers','herself','it','its','itself','they','them','their','theirs','themselves','what','which','who','whom','this','that','these','those','am','is','are','was','were','be','been','being','have','has','had','having','do','does','did','doing','a','an','the','and','but','if','or','because','as','until','while','of','at','by','for','with','about','against','between','into','through','during','before','after','above','below','to','from','up','down','in','out','on','off','over','under','again','further','then','once','here','there','when','where','why','how','all','any','both','each','few','more','most','other','some','such','no','nor','not','only','own','same','so','than','too','very','s','t','can','will','just','don','should','now']
+  const highlight = (content, term) => {
+    const highlightWindow = 15
+    const tokenizedTerm = term.split(/\s+/).filter(t => t !== "")
+    const splitText = content.split(/\s+/).filter(t => t !== "")
+    const includesCheck = (token) => tokenizedTerm.some(term => token.toLowerCase().includes(term.toLowerCase()))
+
+    const occurrencesIndices = splitText
+      .map(includesCheck)
+
+    // calculate best index
+    let bestSum = 0
+    let bestIndex = 0
+    for (let i = 0; i < Math.max(occurrencesIndices.length - highlightWindow, 0); i++) {
+      const window = occurrencesIndices.slice(i, i + highlightWindow)
+      const windowSum = window.reduce((total, cur) => total + cur, 0)
+      if (windowSum > bestSum) {
+        bestSum = windowSum
+        bestIndex = i
+      }
+    }
+
+    const startIndex = Math.max(bestIndex - highlightWindow, 0)
+    const endIndex = Math.min(startIndex + 2 * highlightWindow, splitText.length)
+    const mappedText = splitText
+      .slice(startIndex, endIndex)
+      .map(token => {
+        if (includesCheck(token)) {
+          return `<span class="search-highlight">${token}</span>`
+        }
+        return token
+      })
+      .join(" ")
+      .replaceAll('</span> <span class="search-highlight">', " ")
+    return `${startIndex === 0 ? "" : "..."}${mappedText}${endIndex === splitText.length ? "" : "..."}`
+  }
+
+  const resultToHTML = ({url, title, content, term}) => {
+    const md = content.split("---")[2]
+    const text = removeMarkdown(md)
+    const resultTitle = highlight(title, term)
+    const resultText = highlight(text, term)
+    return `<div class="result-card" id="${url}">
+        <h3>${resultTitle}</h3>
+        <p>${resultText}</p>
+    </div>`
+  }
+
+  const source = document.getElementById('search-bar')
+  const results = document.getElementById("results-container")
+  source.addEventListener('input', (e) => {
+    const term = e.target.value
+    contentIndex.search(term, {
+      limit: 5,
+      depth: 3,
+      suggest: true,
+    }).then(searchResults => {
+      const resultIds = [...new Set(searchResults)]
+      const finalResults = resultIds.map(id => ({
+        url: id,
+        title: scrapedContent[id].title,
+        content: scrapedContent[id].content
+      }))
+
+      // display
+      if (finalResults.length === 0) {
+        results.innerHTML = `<div class="result-card">
+            <p>No results.</p>
+        </div>`
+      } else {
+        results.innerHTML = finalResults
+          .map(result => resultToHTML({
+            ...result,
+            term,
+          }))
+          .join("\n")
+        const anchors = document.getElementsByClassName("result-card");
+        [...anchors].forEach(anchor => {
+          anchor.onclick = () => {
+            window.location.href = `${anchor.id}#:~:text=${encodeURIComponent(term)}`
+          }
+        })
+      }
+    })
+  })
+
+
+  const searchContainer = document.getElementById("search-container")
+  function openSearch() {
+    if (searchContainer.style.display === "none" || searchContainer.style.display === "") {
+      source.value = ""
+      results.innerHTML = ""
+      searchContainer.style.display = "block"
+      source.focus()
+    } else {
+      searchContainer.style.display = "none"
+    }
+  }
+
+  function closeSearch() {
+    searchContainer.style.display = "none"
+  }
+
+  document.addEventListener('keydown', (event) => {
+    if (event.key === "/") {
+      event.preventDefault()
+      openSearch()
+    }
+    if (event.key === "Escape") {
+      event.preventDefault()
+      closeSearch()
+    }
+  })
+
+  window.addEventListener('DOMContentLoaded', () => {
+    const searchButton = document.getElementById("search-icon")
+    searchButton.addEventListener('click', (evt) => {
+      openSearch()
+    })
+    searchButton.addEventListener('keydown', (evt) => {
+      openSearch()
+    })
+  })
+
+</script>
\ No newline at end of file