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 { pluginLanguageBadge } from "./src/plugins/expressive-code/language-badge"
import { pluginCustomCopyButton } from "./src/plugins/expressive-code/custom-copy-button"
import { satteri, satteriHeadingIdsPlugin } from "@astrojs/markdown-satteri"
import { excerpt } from "./src/plugins/satteri/excerpt.mjs"
import { readingTime } from "./src/plugins/satteri/reading-time.mjs"
import { sectionize } from "./src/plugins/satteri/sectionize.mjs"
import { shiftHeadings } from "./src/plugins/satteri/shift-headings.mjs"
import { autolinkHeadings } from "./src/plugins/satteri/autolink-headings.mjs"
import { imageLightbox } from "./src/plugins/satteri/image-lightbox.mjs"
import { site } from "./src/data/site"

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: {
    // Astro 7 的 Sätteri 管线。以下插件是 unified 时期 remark/rehype 插件的对应移植，
    // 见 src/plugins/satteri/。
    //
    // 注意：math 只负责「解析」，渲染成 KaTeX 需要额外的 HAST 插件 —— 尚未迁移。
    processor: satteri({
      // dashes: false 是为了和迁移前的输出逐字一致：Astro 的 unified 管线
      // 会把直引号排成弯引号，但不转换 --- （Sätteri 默认会转成破折号）。
      features: { math: true, smartPunctuation: { dashes: false } },
      mdastPlugins: [
        readingTime,
        excerpt,
        shiftHeadings(),
        sectionize(),
      ],
      hastPlugins: [
        satteriHeadingIdsPlugin(),
        autolinkHeadings,
        imageLightbox,
      ],
    }),
  },
  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/**"],
      },
    },
  },
})