From e677d89104e66a64157330b2e97f47a227c4236a Mon Sep 17 00:00:00 2001
From: pengzhanbo <volodymyr@foxmail.com>
Date: Mon, 8 Jul 2024 02:37:34 +0800
Subject: [PATCH] =?UTF-8?q?perf:=20=E4=BC=98=E5=8C=96=20=E5=8D=9A=E5=AE=A2?=
 =?UTF-8?q?=E6=95=B0=E6=8D=AE=E7=94=9F=E6=88=90?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 plugins/plugin-blog-data/package.json     |  1 +
 theme/src/node/prepare/prepareBlogData.ts | 92 +++++++++++++++++++++++
 2 files changed, 93 insertions(+)
 create mode 100644 theme/src/node/prepare/prepareBlogData.ts

diff --git a/plugins/plugin-blog-data/package.json b/plugins/plugin-blog-data/package.json
index 00042690..57212cc8 100644
--- a/plugins/plugin-blog-data/package.json
+++ b/plugins/plugin-blog-data/package.json
@@ -2,6 +2,7 @@
   "name": "@vuepress-plume/plugin-blog-data",
   "type": "module",
   "version": "1.0.0-rc.72",
+  "private": "true",
   "description": "The Plugin for VuePress 2 - blog data",
   "author": "pengzhanbo <volodymyr@foxmail.com>",
   "license": "MIT",
diff --git a/theme/src/node/prepare/prepareBlogData.ts b/theme/src/node/prepare/prepareBlogData.ts
new file mode 100644
index 00000000..9e56de26
--- /dev/null
+++ b/theme/src/node/prepare/prepareBlogData.ts
@@ -0,0 +1,92 @@
+import type { App, Page } from 'vuepress/core'
+import { createFilter } from 'create-filter'
+import { removeLeadingSlash } from '@vuepress/helper'
+import { logger, normalizePath, resolveContent, writeTemp } from '../utils/index.js'
+import type {
+  PlumeThemeBlogPostData,
+  PlumeThemeBlogPostItem,
+  PlumeThemeEncrypt,
+  PlumeThemeLocaleOptions,
+  PlumeThemePageData,
+  PlumeThemePostFrontmatter,
+} from '../../shared/index.js'
+import { resolveNotesOptions } from '../config/index.js'
+import { isEncryptPage } from './prepareEncrypt.js'
+
+const HEADING_RE = /<h(\d)[^>]*>.*?<\/h\1>/gi
+const EXCERPT_SPLIT = '<!-- more -->'
+
+function getTimestamp(time: Date): number {
+  return new Date(time).getTime()
+}
+
+export async function preparedBlogData(
+  app: App,
+  localeOptions: PlumeThemeLocaleOptions,
+  encrypt?: PlumeThemeEncrypt,
+): Promise<void> {
+  const start = performance.now()
+
+  const blog = localeOptions.blog || {}
+  const notesList = resolveNotesOptions(localeOptions)
+  const notesDirList = notesList
+    .map(notes => removeLeadingSlash(normalizePath(`${notes.dir}/**`)))
+    .filter(Boolean)
+
+  const filter = createFilter(
+    blog.include ?? ['**/*.md'],
+    [
+      '**/{README,readme,index}.md',
+      '.vuepress/',
+      'node_modules/',
+      ...(blog.exclude ?? []),
+      ...notesDirList,
+    ].filter(Boolean),
+    { resolve: false },
+  )
+
+  const pages = app.pages.filter(page =>
+    page.filePathRelative
+    && filter(page.filePathRelative)
+    && page.frontmatter.draft !== true,
+  ).sort((prev, next) =>
+    getTimestamp((prev.frontmatter.createTime as Date) || prev.date)
+    < getTimestamp(next.frontmatter.createTime as Date || next.date)
+      ? 1
+      : -1,
+  ) as Page<PlumeThemePageData, PlumeThemePostFrontmatter>[]
+
+  const blogData: PlumeThemeBlogPostData = pages.map((page) => {
+    page.data.isBlogPost = true
+
+    const tags = page.frontmatter.tags
+    const data: PlumeThemeBlogPostItem = {
+      path: page.path,
+      title: page.title,
+      categoryList: page.data.categoryList,
+      tags,
+      sticky: page.frontmatter.sticky,
+      createTime: page.data.frontmatter.createTime!,
+      lang: page.lang,
+      excerpt: '',
+    }
+
+    isEncryptPage(page, encrypt) && (data.encrypt = true)
+
+    if (page.contentRendered.includes(EXCERPT_SPLIT)) {
+      const contents = page.contentRendered.split(EXCERPT_SPLIT)
+      let excerpt = contents[0]
+      // 删除摘要中的标题
+      excerpt = excerpt.replace(HEADING_RE, '')
+      data.excerpt = excerpt
+    }
+
+    return data
+  })
+
+  const content = resolveContent(app, { name: 'blogPostData', content: blogData })
+  await writeTemp(app, 'internal/blogData.js', content)
+
+  if (app.env.isDebug)
+    logger.info(`prepare blog data time spent: ${(performance.now() - start).toFixed(2)}ms`)
+}