From 9bf2be5ae932df0c760660a98079bdff80c22211 Mon Sep 17 00:00:00 2001
From: Sage Vaillancourt <sage@sagev.space>
Date: Mon, 16 Sep 2024 08:52:13 -0400
Subject: [PATCH] Add a simple author filter

---
 author-filter.js | 152 +++++++++++++++++++++++++++++++++++++++++++++++
 manifest.json    |  13 ++--
 2 files changed, 159 insertions(+), 6 deletions(-)
 create mode 100644 author-filter.js

diff --git a/author-filter.js b/author-filter.js
new file mode 100644
index 0000000..5cdeeab
--- /dev/null
+++ b/author-filter.js
@@ -0,0 +1,152 @@
+const getTbody = () => {
+  const table = document.querySelector('#commits-table')
+  if (!table) {
+    return
+  }
+  const tbody = table.getElementsByTagName('tbody')[0]
+  return {
+    tbody,
+    rowNodes: tbody && [...tbody.childNodes]
+  }
+}
+
+let mutationObserver
+let isFiltered = false
+const allRowNodes = []
+
+const pushNewNodes = rowNodes => {
+  console.log(`pushNewNodes(${rowNodes.length} nodes) into allRowNodes (length ${allRowNodes.length})`)
+  let found = true
+  for (const row of rowNodes) {
+    if (!allRowNodes.includes(row)) {
+      found = false
+    }
+    if (!found) {
+      allRowNodes.push(row)
+    }
+  }
+}
+
+const filterToAuthorName = (authorName, refreshing) => {
+  console.log({ authorName, refreshing, isFiltered })
+  if (!refreshing && isFiltered) {
+    console.log('removeFilter redirect')
+    removeFilter()
+    return
+  }
+  isFiltered = true
+  const { tbody, rowNodes } = getTbody()
+  if (!tbody || !rowNodes.length) {
+    return
+  }
+  const badRowNodes = rowNodes.filter(row => !row.innerHTML.includes(authorName))
+  badRowNodes.forEach(row => {
+    try {
+      tbody.removeChild(row)
+    } catch (e) {
+      // Continue removing
+    }
+  })
+  pushNewNodes(rowNodes)
+
+  // Scroll-event-consuming function:
+  // function(e) {
+  //   return N !== undefined && N.event.triggered !== e.type ? N.event.dispatch.apply(t, arguments) : void 0
+  // }
+  // document.getElementsByTagName('html')[0].dispatchEvent(new Event('scroll'))
+
+  if (!refreshing) {
+    console.log('allRowNodes.pop()')
+    while (allRowNodes.pop()) {}
+    allRowNodes.push(...rowNodes)
+    mutationObserver = new MutationObserver((mutationList, observer) => {
+      addAuthorFilterClicks()
+      filterToAuthorName(authorName, true)
+    })
+    mutationObserver.observe(tbody, { childList: true })
+  }
+  // console.log('allRowNodes.length', allRowNodes.length)
+}
+
+const removeFilter = () => {
+  isFiltered = false
+  const { tbody, rowNodes } = getTbody()
+  if (!tbody) {
+    return
+  }
+  console.log({ rowNodes, allRowNodes })
+  mutationObserver.disconnect()
+  rowNodes.forEach(row => tbody.removeChild(row))
+  allRowNodes.forEach(row => tbody.appendChild(row))
+}
+
+let notifyClearTimeoutId
+let notifyDiv = document.createElement('div')
+let hasAppended = false
+
+const notify = message => {
+  if (!hasAppended) {
+    document.getElementsByTagName('body')[0].appendChild(notifyDiv)
+    hasAppended = true
+  }
+  if (notifyClearTimeoutId) {
+    clearTimeout(notifyClearTimeoutId)
+  }
+
+  notifyDiv.innerText = message
+  notifyDiv.style = `
+    position: sticky;
+    min-height: 20px;
+    min-width: 100px;
+    background-color: #cad4e3;
+    z-index: 99;
+    top: 0;
+    text-align: center;
+    padding: 0.5em;
+    visibility: visible;
+  `
+
+  notifyClearTimeoutId = setTimeout(hideNotification, 5000)
+}
+
+const hideNotification = () => {
+  if (notifyClearTimeoutId) {
+    clearTimeout(notifyClearTimeoutId)
+  }
+  notifyDiv.style.visibility = 'hidden'
+}
+
+const addAuthorFilterClicks = () => {
+  const { rowNodes } = getTbody()
+  rowNodes?.forEach(row => {
+    const clickable = row.getElementsByClassName('aui-avatar-inner')[0]
+    const authorName = row.getElementsByClassName('name-section')[0]?.title
+    const clickListener = e => {
+      e.stopPropagation()
+      filterToAuthorName(authorName)
+    }
+    const mouseOverListener = () => {
+      notify(`Click to filter by the author '${authorName}'`)
+    }
+    clickable?.removeEventListener('click', clickListener)
+    clickable?.parentNode.removeEventListener('click', clickListener)
+    clickable?.removeEventListener('mouseenter', mouseOverListener)
+    clickable?.parentNode.removeEventListener('mouseenter', mouseOverListener)
+    clickable?.removeEventListener('mouseleave', hideNotification)
+    clickable?.parentNode.removeEventListener('mouseleave', hideNotification)
+
+    clickable?.addEventListener('click', clickListener)
+    clickable?.parentNode.addEventListener('click', clickListener)
+    clickable?.addEventListener('mouseenter', mouseOverListener)
+    clickable?.parentNode.addEventListener('mouseenter', mouseOverListener)
+    clickable?.addEventListener('mouseleave', hideNotification)
+    clickable?.parentNode.addEventListener('mouseleave', hideNotification)
+    clickable && (clickable.style.cursor = 'pointer')
+    clickable?.parentNode && (clickable.parentNode.style.cursor = 'pointer')
+    console.log('clickable.style', clickable?.style)
+    console.log('clickable?.parentNode.style', clickable?.parentNode.style)
+  })
+}
+
+addFix(addAuthorFilterClicks)
+setInterval(addAuthorFilterClicks, 5000)
\ No newline at end of file
diff --git a/manifest.json b/manifest.json
index 9e4b682..eab022f 100644
--- a/manifest.json
+++ b/manifest.json
@@ -25,12 +25,13 @@
     {
       "matches": ["*://git.add123.com/*"],
       "js": [
-          "utils.js",
-          "backtick-comments.js",
-          "csharp-quotes.js",
-          "file-scroll.js",
-          "repo-search-sorter.js",
-          "var-highlighter.js"
+        "utils.js",
+        "author-filter.js",
+        "backtick-comments.js",
+        "csharp-quotes.js",
+        "file-scroll.js",
+        "repo-search-sorter.js",
+        "var-highlighter.js"
       ],
       "run_at": "document_start"
     }