feat: add vitepress

.gitignore

@@ -4,6 +4,7 @@
 .temp
 .vitepress
 .cache
+.vitepress/cache
 *.iml
 __pycache__
 /node_modules

.vitepress/config.mts

@@ -0,0 +1,109 @@
+import fs from 'node:fs/promises';
+import { resolve } from 'node:path';
+
+import type { DefaultTheme } from 'vitepress';
+import { defineConfig } from 'vitepress';
+
+/**
+ * 判断路径目标是否为文件夹
+ * @param {string} path
+ * @returns
+ */
+const isDir = async (path: string) => {
+    try {
+        const stat = await fs.stat(path);
+        return stat.isDirectory();
+    } catch (error) {
+        return false;
+    }
+};
+
+// 获取根目录
+const rootPath = resolve(import.meta.dirname, '../');
+
+const getQuestionNo = (title: string, dir: string): string => {
+    let dot = dir !== 'lcci' ? title.indexOf('.') : title.lastIndexOf('.');
+    let num = title
+        .slice(0, dot)
+        .replace('面试题', '')
+        .replace('剑指 Offer II', '')
+        .replace('LCP', '')
+        .replace('LCS', '')
+        .trim()
+        .replace(/^0+/, ''); // Remove leading zeros
+
+    if (num.endsWith('- III')) {
+        num = num.slice(0, -5) + '.3';
+    } else if (num.endsWith('- II')) {
+        num = num.slice(0, -4) + '.2';
+    } else if (num.endsWith('- I')) {
+        num = num.slice(0, -3) + '.1';
+    }
+
+    num = num
+        .split('.')
+        .map(x => x.trim().replace(/^0+/, ''))
+        .join('.');
+    return num;
+};
+
+// TODO 对于 solution，需要递归读取
+// const questions = ['lcci', 'lcof', 'lcof2', 'lcp', 'solution'];
+// FIXME lcof 较为特殊，似乎中文名加上空格，导致服务崩溃
+// const questions = ['lcci', 'lcof', 'lcof2', 'lcp'];
+const questions = ['lcci', 'lcof2', 'lcp'];
+const items: Record<string, DefaultTheme.Sidebar> = {};
+const rewrites: Record<string, string> = {};
+
+for (const question of questions) {
+    const files = await fs.readdir(resolve(rootPath, question));
+    items[question] = [];
+    for (const file of files) {
+        if (!(await isDir(resolve(rootPath, question, file)))) {
+            continue;
+        }
+        items[question].push({ text: file, link: `${question}/${file}/README.md` });
+        rewrites[`${question}/${file}/README.md`] = `${question}/${getQuestionNo(file, question)}`;
+    }
+}
+
+// https://vitepress.dev/reference/site-config
+export default defineConfig({
+    title: 'LeetCode Wiki',
+    description: 'LeetCode、《剑指 Offer（第 2 版）》、《程序员面试金典（第 6 版）》题解',
+    locales: {
+        root: {
+            label: '中文',
+            lang: 'cn',
+        },
+        en: {
+            label: 'English',
+            lang: 'en-US',
+            link: '/en',
+        },
+    },
+    markdown: {
+        math: true,
+    },
+    themeConfig: {
+        // https://vitepress.dev/reference/default-theme-config
+        nav: [
+            { text: 'Home', link: '/' },
+            { text: 'LeetCode', link: '/lc/index' },
+            ...questions.map(question => ({ text: question, link: `/${question}/README.md` })),
+        ],
+        socialLinks: [{ icon: 'github', link: 'https://github.com/doocs/leetcode' }],
+        sidebar: questions.reduce((r, question) => {
+            return {
+                ...r,
+                [`/${question}/`]: [
+                    {
+                        text: question,
+                        items: items[question],
+                    },
+                ],
+            };
+        }, {}),
+    },
+    rewrites,
+});

.vitepress/theme/index.ts

@@ -0,0 +1,17 @@
+// https://vitepress.dev/guide/custom-theme
+import { h } from 'vue';
+import type { Theme } from 'vitepress';
+import DefaultTheme from 'vitepress/theme';
+import './style.css';
+
+export default {
+    extends: DefaultTheme,
+    Layout: () => {
+        return h(DefaultTheme.Layout, null, {
+            // https://vitepress.dev/guide/extending-default-theme#layout-slots
+        });
+    },
+    enhanceApp({ app, router, siteData }) {
+        // ...
+    },
+} satisfies Theme;

.vitepress/theme/style.css

@@ -0,0 +1,139 @@
+/**
+ * Customize default theme styling by overriding CSS variables:
+ * https://github.com/vuejs/vitepress/blob/main/src/client/theme-default/styles/vars.css
+ */
+
+/**
+ * Colors
+ *
+ * Each colors have exact same color scale system with 3 levels of solid
+ * colors with different brightness, and 1 soft color.
+ * 
+ * - `XXX-1`: The most solid color used mainly for colored text. It must
+ *   satisfy the contrast ratio against when used on top of `XXX-soft`.
+ *
+ * - `XXX-2`: The color used mainly for hover state of the button.
+ *
+ * - `XXX-3`: The color for solid background, such as bg color of the button.
+ *   It must satisfy the contrast ratio with pure white (#ffffff) text on
+ *   top of it.
+ *
+ * - `XXX-soft`: The color used for subtle background such as custom container
+ *   or badges. It must satisfy the contrast ratio when putting `XXX-1` colors
+ *   on top of it.
+ *
+ *   The soft color must be semi transparent alpha channel. This is crucial
+ *   because it allows adding multiple "soft" colors on top of each other
+ *   to create a accent, such as when having inline code block inside
+ *   custom containers.
+ *
+ * - `default`: The color used purely for subtle indication without any
+ *   special meanings attched to it such as bg color for menu hover state.
+ *
+ * - `brand`: Used for primary brand colors, such as link text, button with
+ *   brand theme, etc.
+ *
+ * - `tip`: Used to indicate useful information. The default theme uses the
+ *   brand color for this by default.
+ *
+ * - `warning`: Used to indicate warning to the users. Used in custom
+ *   container, badges, etc.
+ *
+ * - `danger`: Used to show error, or dangerous message to the users. Used
+ *   in custom container, badges, etc.
+ * -------------------------------------------------------------------------- */
+
+ :root {
+  --vp-c-default-1: var(--vp-c-gray-1);
+  --vp-c-default-2: var(--vp-c-gray-2);
+  --vp-c-default-3: var(--vp-c-gray-3);
+  --vp-c-default-soft: var(--vp-c-gray-soft);
+
+  --vp-c-brand-1: var(--vp-c-indigo-1);
+  --vp-c-brand-2: var(--vp-c-indigo-2);
+  --vp-c-brand-3: var(--vp-c-indigo-3);
+  --vp-c-brand-soft: var(--vp-c-indigo-soft);
+
+  --vp-c-tip-1: var(--vp-c-brand-1);
+  --vp-c-tip-2: var(--vp-c-brand-2);
+  --vp-c-tip-3: var(--vp-c-brand-3);
+  --vp-c-tip-soft: var(--vp-c-brand-soft);
+
+  --vp-c-warning-1: var(--vp-c-yellow-1);
+  --vp-c-warning-2: var(--vp-c-yellow-2);
+  --vp-c-warning-3: var(--vp-c-yellow-3);
+  --vp-c-warning-soft: var(--vp-c-yellow-soft);
+
+  --vp-c-danger-1: var(--vp-c-red-1);
+  --vp-c-danger-2: var(--vp-c-red-2);
+  --vp-c-danger-3: var(--vp-c-red-3);
+  --vp-c-danger-soft: var(--vp-c-red-soft);
+}
+
+/**
+ * Component: Button
+ * -------------------------------------------------------------------------- */
+
+:root {
+  --vp-button-brand-border: transparent;
+  --vp-button-brand-text: var(--vp-c-white);
+  --vp-button-brand-bg: var(--vp-c-brand-3);
+  --vp-button-brand-hover-border: transparent;
+  --vp-button-brand-hover-text: var(--vp-c-white);
+  --vp-button-brand-hover-bg: var(--vp-c-brand-2);
+  --vp-button-brand-active-border: transparent;
+  --vp-button-brand-active-text: var(--vp-c-white);
+  --vp-button-brand-active-bg: var(--vp-c-brand-1);
+}
+
+/**
+ * Component: Home
+ * -------------------------------------------------------------------------- */
+
+:root {
+  --vp-home-hero-name-color: transparent;
+  --vp-home-hero-name-background: -webkit-linear-gradient(
+    120deg,
+    #bd34fe 30%,
+    #41d1ff
+  );
+
+  --vp-home-hero-image-background-image: linear-gradient(
+    -45deg,
+    #bd34fe 50%,
+    #47caff 50%
+  );
+  --vp-home-hero-image-filter: blur(44px);
+}
+
+@media (min-width: 640px) {
+  :root {
+    --vp-home-hero-image-filter: blur(56px);
+  }
+}
+
+@media (min-width: 960px) {
+  :root {
+    --vp-home-hero-image-filter: blur(68px);
+  }
+}
+
+/**
+ * Component: Custom Block
+ * -------------------------------------------------------------------------- */
+
+:root {
+  --vp-custom-block-tip-border: transparent;
+  --vp-custom-block-tip-text: var(--vp-c-text-1);
+  --vp-custom-block-tip-bg: var(--vp-c-brand-soft);
+  --vp-custom-block-tip-code-bg: var(--vp-c-brand-soft);
+}
+
+/**
+ * Component: Algolia
+ * -------------------------------------------------------------------------- */
+
+.DocSearch {
+  --docsearch-primary-color: var(--vp-c-brand-1) !important;
+}
+

index.md

@@ -0,0 +1,22 @@
+---
+# https://vitepress.dev/reference/default-theme-home-page
+layout: home
+
+hero:
+    name: 'LeetCode Wiki'
+    text: 'LeetCode、《剑指 Offer（第 2 版）》、《程序员面试金典（第 6 版）》题解'
+    actions:
+        - theme: brand
+          text: 开始阅读
+          link: /lc
+
+features:
+    - title: LeetCode
+      details: LeetCode 全站所有题目题解
+    - title: 剑指 Offer
+      details: 精选谷歌、微软等知名 IT 企业的典型面试题
+    - title: 剑指 Offer（专项突击版）
+      details: 精选国内外名企高频面试题并深度拓展
+    - title: 程序员面试金典
+      details: 原谷歌资深面试官的经验之作，帮助了许多想要加入脸书、苹果、谷歌等 IT 名企的求职者拿到 Dream offer
+---