{{- $jsTheme := resources.Get "js/theme.js" | resources.ExecuteAsTemplate "theme.js" . -}}
{{- $jsMenu := resources.Get "js/menu.js" -}}
{{- $jsTabs := resources.Get "js/tabs.js" -}}
{{- $jsLang := resources.Get "js/lang.js" -}}
{{- $jsCodeCopy := resources.Get "js/code-copy.js" -}}
{{- $jsFileTree := resources.Get "js/filetree.js" -}}
{{- $jsSidebar := resources.Get "js/sidebar.js" -}}
{{- $jsBackToTop := resources.Get "js/back-to-top.js" -}}

{{- $scripts := slice $jsTheme $jsMenu $jsCodeCopy $jsTabs $jsLang $jsFileTree $jsSidebar $jsBackToTop | resources.Concat "js/main.js" -}}
{{- if hugo.IsProduction -}}
  {{- $scripts = $scripts | minify | fingerprint -}}
{{- end -}}
<script defer src="{{ $scripts.RelPermalink }}" integrity="{{ $scripts.Data.Integrity }}"></script>


{{/* Search */}}
{{- if (site.Params.search.enable | default true) -}}
  {{- $searchType := site.Params.search.type | default "flexsearch" -}}
  {{- if eq $searchType "flexsearch" -}}
    {{- $jsSearchScript := printf "%s.search.js" .Language.Lang -}}
    {{- $jsSearch := resources.Get "js/flexsearch.js" | resources.ExecuteAsTemplate $jsSearchScript . -}}
    {{- if hugo.IsProduction -}}
      {{- $jsSearch = $jsSearch | minify | fingerprint -}}
    {{- end -}}
    {{- $flexSearchJS := resources.Get "lib/flexsearch/flexsearch.bundle.min.js" | fingerprint -}}
    <script defer src="{{ $flexSearchJS.RelPermalink }}" integrity="{{ $flexSearchJS.Data.Integrity }}"></script>
    <script defer src="{{ $jsSearch.RelPermalink }}" integrity="{{ $jsSearch.Data.Integrity }}"></script>
  {{- else -}}
    {{- warnf `search type "%s" is not supported` $searchType -}}
  {{- end -}}
{{- end -}}

{{/* Mermaid */}}
{{/* FIXME: need to investigate .Page.Store hasMermaid is set for homepage */}}
{{- if and (.Page.Store.Get "hasMermaid") (not .Page.IsHome) -}}
  {{- $mermaidJS := resources.Get "lib/mermaid/mermaid.min.js" | fingerprint -}}
  <script defer src="{{ $mermaidJS.RelPermalink }}" integrity="{{ $mermaidJS.Data.Integrity }}"></script>
  <script>
    document.addEventListener("DOMContentLoaded", () => {
      // Store original mermaid code for each diagram
      document.querySelectorAll(".mermaid").forEach(el => {
        el.dataset.original = el.innerHTML;
      });

      const theme = document.documentElement.classList.contains("dark") ? "dark" : "default";
      mermaid.initialize({ startOnLoad: true, theme: theme });

      let timeout;
      new MutationObserver(() => {
        clearTimeout(timeout);
        timeout = setTimeout(() => {
          const theme = document.documentElement.classList.contains("dark") ? "dark" : "default";
          document.querySelectorAll(".mermaid").forEach(el => {
            // Reset to original content, preserving HTML
            el.innerHTML = el.dataset.original;
            el.removeAttribute("data-processed");
          });
          mermaid.initialize({ startOnLoad: true, theme: theme });
          mermaid.init();
        }, 150);
      }).observe(document.documentElement, {
        attributes: true,
        attributeFilter: ["class"]
      });
    });
  </script>
{{- end -}}

{{/* KaTex */}}
{{- if .Page.Params.math -}}
  {{- $katexCSS := resources.Get "lib/katex/katex.min.css" | fingerprint -}}
  {{- $katexJS := resources.Get "lib/katex/katex.min.js" | fingerprint -}}
  {{- $mhchemJS := resources.Get "lib/katex/mhchem.min.js" | fingerprint -}}
  {{- $katexAutoRenderJS := resources.Get "lib/katex/auto-render.min.js" | fingerprint -}}
  <link type="text/css" rel="stylesheet" href="{{ $katexCSS.RelPermalink }}" integrity="{{ $katexCSS.Data.Integrity }}" />
  <script defer src="{{ $katexJS.RelPermalink }}" integrity="{{ $katexJS.Data.Integrity }}"></script>
  <script defer src="{{ $katexAutoRenderJS.RelPermalink }}" integrity="{{ $katexAutoRenderJS.Data.Integrity }}"></script>
  <script defer src="{{ $mhchemJS.RelPermalink }}" integrity="{{ $mhchemJS.Data.Integrity }}"></script>
  {{ $katexFonts := resources.Match "lib/katex/fonts/*" }}
  {{- range $katexFonts -}}
    {{ .Publish }}
  {{- end -}}
  <script>
    // TODO: make render options configurable
    // Reference: https://katex.org/docs/autorender#api
    document.addEventListener("DOMContentLoaded", function () {
      renderMathInElement(document.body, {
        delimiters: [
          { left: "$$", right: "$$", display: true },
          { left: "$", right: "$", display: false },
          { left: "\\(", right: "\\)", display: false },
          { left: "\\begin{equation}", right: "\\end{equation}", display: true },
          {left: "\\begin{align}", right: "\\end{align}", display: true},
          {left: "\\begin{alignat}", right: "\\end{alignat}", display: true},
          {left: "\\begin{gather}", right: "\\end{gather}", display: true},
          {left: "\\begin{CD}", right: "\\end{CD}", display: true},
          { left: "\\[", right: "\\]", display: true },
        ],
        throwOnError: false,
      });
    });
  </script>
{{ end }}