import { defineConfig } from "astro/config"
import react from "@astrojs/react"
import sitemap from "@astrojs/sitemap"
import mdx from "@astrojs/mdx"
import { pluginCollapsibleSections } from "@expressive-code/plugin-collapsible-sections"
import { pluginLineNumbers } from "@expressive-code/plugin-line-numbers"
import expressiveCode from "astro-expressive-code"
import rehypeAutolinkHeadings from "rehype-autolink-headings"
import rehypeComponents from "rehype-components"
import rehypeKatex from "rehype-katex"
import rehypeSlug from "rehype-slug"
import remarkDirective from "remark-directive"
import remarkGithubAdmonitionsToDirectives from "remark-github-admonitions-to-directives"
import remarkMath from "remark-math"
import remarkSectionize from "remark-sectionize"
import { remarkShiftHeadings } from "./src/plugins/remark-shift-headings.mjs"
import { AdmonitionComponent } from "./src/plugins/rehype-component-admonition.mjs"
import { parseDirectiveNode } from "./src/plugins/remark-directive-rehype.js"
import { remarkExcerpt } from "./src/plugins/remark-excerpt.js"
import { remarkReadingTime } from "./src/plugins/remark-reading-time.mjs"
import { pluginLanguageBadge } from "./src/plugins/expressive-code/language-badge"
import { pluginCustomCopyButton } from "./src/plugins/expressive-code/custom-copy-button"
import { unified } from "@astrojs/markdown-remark"
import { rehypeImageLightbox } from "./src/plugins/rehype-image-lightbox.mjs"
import { site } from "./src/data/site"

const createAdmonitionComponent = (type) => (properties = {}, children = []) => {
  const normalizedChildren = Array.isArray(children) ? children : []
  return AdmonitionComponent(properties, normalizedChildren, type)
}

export default defineConfig({
  srcDir: "./src",
  output: "static",
  site: site.url,
  trailingSlash: "always",
  alias: {
    "@": "./src",
  },
  integrations: [
    expressiveCode({
      themes: ["github-dark", "github-light"],
      themeCssSelector: (theme) => {
        // 根据主题名称返回对应的 CSS 选择器
        if (theme.name === "github-light") return ":root:not(.dark)"
        return ".dark"
      },
      plugins: [
        pluginCollapsibleSections(),
        pluginLineNumbers(),
        pluginLanguageBadge(),
        pluginCustomCopyButton(),
      ],
      defaultProps: {
        wrap: true,
        overridesByLang: {
          shellsession: {
            showLineNumbers: false,
          },
        },
      },
      styleOverrides: {
        codeBackground: "var(--codeblock-bg)",
        borderRadius: "0.75rem",
        borderColor: "transparent",
        codeFontSize: "0.875rem",
        codeFontFamily: "var(--font-mono), ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace",
        codeLineHeight: "1.625",
        frames: {
          editorBackground: "var(--codeblock-bg)",
          terminalBackground: "var(--codeblock-bg)",
          terminalTitlebarBackground: "var(--codeblock-topbar-bg)",
          editorTabBarBackground: "var(--codeblock-topbar-bg)",
          editorActiveTabBackground: "transparent",
          editorActiveTabIndicatorBottomColor: "var(--primary)",
          editorActiveTabIndicatorTopColor: "transparent",
          editorTabBarBorderBottomColor: "var(--codeblock-topbar-bg)",
          terminalTitlebarBorderBottomColor: "transparent",
        },
      },
      frames: {
        showCopyToClipboardButton: false,
      },
    }),
    react(),
    sitemap(),
    mdx(),
  ],
  compressHTML: true,
  markdown: {
    processor: unified({
      remarkPlugins: [
        remarkMath,
        remarkReadingTime,
        remarkExcerpt,
        remarkShiftHeadings,
        remarkGithubAdmonitionsToDirectives,
        remarkDirective,
        remarkSectionize,
        parseDirectiveNode,
      ],
      rehypePlugins: [
        rehypeKatex,
        rehypeSlug,
        [
          rehypeComponents,
          {
            components: {
              note: createAdmonitionComponent("note"),
              tip: createAdmonitionComponent("tip"),
              important: createAdmonitionComponent("important"),
              caution: createAdmonitionComponent("caution"),
              warning: createAdmonitionComponent("warning"),
            },
          },
        ],
        [
          rehypeAutolinkHeadings,
          {
            behavior: "append",
            properties: {
              className: ["anchor"],
            },
            content: {
              type: "element",
              tagName: "span",
              properties: {
                className: ["anchor-icon"],
                "data-pagefind-ignore": true,
              },
              children: [
                {
                  type: "text",
                  value: "#",
                },
              ],
            },
          },
        ],
        rehypeImageLightbox,
      ],
    }),
  },
  vite: {
    server: {
      watch: {
        /*
         * 项目根目录下的 .pnpm-store 是 pnpm 的内容寻址仓库：5.4 万个文件、672 MB，
         * 而且已经被 .gitignore 忽略。Vite 默认会把项目根整个 watch，加上它以后
         * inotify 直接到顶（max_user_watches = 65536），dev server 一启动就刷屏：
         *   ENOSPC: System limit for number of file watchers reached
         * 排除掉即可。node_modules / .git 是 Vite 默认就排除的，不用管。
         */
        ignored: ["**/.pnpm-store/**"],
      },
    },
  },
})