feat: embed admin templates into binary with //go:embed

Move admin templates from templates/admin/*.html to internal/admin/templates/*.html and embed them using //go:embed directive. This removes the runtime dependency on having template files on disk, allowing the templates to be compiled into the binary. Changes: - Add embed import and //go:embed directive for templates - Change ParseGlob() to ParseFS() to load from embedded filesystem - Copy templates to internal/admin/templates/ for embedding Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
author: ivar <i@oiee.no> 2026-04-03 14:46:05 +0200
committer: ivar <i@oiee.no> 2026-04-03 14:46:05 +0200
commit: a46309ac64261814d931f538fad373ea8a4f0e95 (patch)
tree: 6aeb1333071e433fc9e3bc7779b8b41d9e270544
parent: a21fa502891a6d2f0600485b1b76762ecc178fd0 (diff)
download: nebbet.no-a46309ac64261814d931f538fad373ea8a4f0e95.tar.xz
nebbet.no-a46309ac64261814d931f538fad373ea8a4f0e95.zip
5 files changed, 150 insertions, 3 deletions
diff --git a/internal/admin/server.go b/internal/admin/server.go
index 33413ee..b36c598 100644
--- a/internal/admin/server.go
+++ b/internal/admin/server.go
@@ -4,6 +4,7 @@
 package admin
 
 import (
+	"embed"
 	"fmt"
 	"html/template"
 	"net/http"
@@ -19,6 +20,9 @@ import (
 	"nebbet.no/internal/builder"
 )
 
+//go:embed templates/*.html
+var adminTemplates embed.FS
+
 // Server is an http.Handler that serves the admin post-management UI.
 type Server struct {
 	// PostsDir is the directory where post markdown files are stored,
@@ -353,7 +357,7 @@ func slugify(title string) string {
 	return s
 }
 
-// mustParseTemplates loads admin templates from the templates/admin/ directory.
+// mustParseTemplates loads admin templates from the embedded filesystem.
 func mustParseTemplates() *template.Template {
 	funcs := template.FuncMap{
 		"splitTags": func(s string) []string {
@@ -367,8 +371,8 @@ func mustParseTemplates() *template.Template {
 			return tags
 		},
 	}
-	// Load all .html files from templates/admin/ directory
-	tmpl, err := template.New("admin").Funcs(funcs).ParseGlob("templates/admin/*.html")
+	// Parse templates from embedded filesystem
+	tmpl, err := template.New("admin").Funcs(funcs).ParseFS(adminTemplates, "templates/*.html")
 	if err != nil {
 		panic(fmt.Sprintf("failed to parse admin templates: %v", err))
 	}
diff --git a/internal/admin/templates/base.html b/internal/admin/templates/base.html
new file mode 100644
index 0000000..f88bba6
--- /dev/null
+++ b/internal/admin/templates/base.html
@@ -0,0 +1,34 @@
+{{define "base"}}
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <title>Admin — {{.Title}}</title>
+  <link rel="stylesheet" href="/styles/admin.css">
+  <link rel="stylesheet" href="/lib/milkdown-crepe/style.css">
+  <script type="importmap">
+  {
+    "imports": {
+      "@milkdown/crepe": "/lib/node_modules/@milkdown/crepe"
+    }
+  }
+  </script>
+</head>
+
+<body>
+  <nav>
+    <span class="brand">Admin</span>
+    <a href="/admin/">Posts</a>
+    <a href="/admin/new">New Post</a>
+  </nav>
+  <main>
+    {{if eq .ContentTemplate "list-content"}}{{template "list-content" .}}{{end}}
+    {{if eq .ContentTemplate "form-content"}}{{template "form-content" .}}{{end}}
+    {{if eq .ContentTemplate "error-content"}}{{template "error-content" .}}{{end}}
+  </main>
+</body>
+
+</html>
+{{end}}
+\ No newline at end of file
diff --git a/internal/admin/templates/error.html b/internal/admin/templates/error.html
new file mode 100644
index 0000000..36a4a8a
--- /dev/null
+++ b/internal/admin/templates/error.html
@@ -0,0 +1,7 @@
+{{define "error-content"}}
+  <div class="alert">
+    <h2>Error</h2>
+    <p>{{.Message}}</p>
+    <p><a href="javascript:history.back()">Go back</a></p>
+  </div>
+{{end}}
diff --git a/internal/admin/templates/form.html b/internal/admin/templates/form.html
new file mode 100644
index 0000000..1b577c9
--- /dev/null
+++ b/internal/admin/templates/form.html
@@ -0,0 +1,62 @@
+{{define "form-content"}}
+  <h1>{{.Title}}</h1>
+  <form method="POST" action="{{.Action}}">
+    <label for="title">Title</label>
+    <input type="text" id="title" name="title" value="{{.Post.Title}}" required autofocus>
+
+    <label for="date">Date</label>
+    <input type="date" id="date" name="date" value="{{.Post.Date}}">
+
+    <label for="tags">Tags</label>
+    <input type="text" id="tags" name="tags" value="{{.Post.Tags}}" placeholder="tag1, tag2, tag3">
+    <p class="hint">Comma-separated list of tags.</p>
+
+    <label for="content">Content (Markdown)</label>
+    <textarea id="content" name="content" style="display: none;">{{.Post.Content}}</textarea>
+    <div id="editor" style="border: 1px solid #ccc; border-radius: 4px; min-height: 340px;"></div>
+
+    <div class="form-actions">
+      <button type="submit" class="btn btn-primary">
+        {{if .IsNew}}Create Post{{else}}Save Changes{{end}}
+      </button>
+      <a href="/admin/" class="btn btn-secondary">Cancel</a>
+    </div>
+  </form>
+
+  <script type="module">
+    import { Crepe } from '@milkdown/crepe';
+
+    const contentField = document.getElementById('content');
+    const editorContainer = document.getElementById('editor');
+    const form = contentField.closest('form');
+
+    // Initialize Crepe with the textarea content
+    const crepe = new Crepe({
+      root: editorContainer,
+      defaultValue: contentField.value,
+    });
+
+    // Sync editor content back to textarea before form submission
+    form.addEventListener('submit', async (e) => {
+      e.preventDefault();
+
+      try {
+        // Get the markdown content from Crepe
+        const markdown = await crepe.getMarkdown();
+        contentField.value = markdown;
+      } catch (err) {
+        console.error('Failed to get markdown from editor:', err);
+      }
+
+      // Submit the form
+      form.submit();
+    });
+  </script>
+
+  <noscript>
+    <style>
+      #editor { display: none; }
+      #content { display: block !important; }
+    </style>
+  </noscript>
+{{end}}
diff --git a/internal/admin/templates/list.html b/internal/admin/templates/list.html
new file mode 100644
index 0000000..561e317
--- /dev/null
+++ b/internal/admin/templates/list.html
@@ -0,0 +1,40 @@
+{{define "list-content"}}
+  <h1>Posts</h1>
+  {{if .Posts}}
+  <table>
+    <thead>
+      <tr>
+        <th>Title</th>
+        <th>Date</th>
+        <th>Tags</th>
+        <th></th>
+      </tr>
+    </thead>
+    <tbody>
+      {{range .Posts}}
+      <tr>
+        <td>{{.Title}}</td>
+        <td>{{.Date}}</td>
+        <td>
+          {{if .Tags}}
+          <div class="tags">
+            {{range (splitTags .Tags)}}<span class="tag">{{.}}</span>{{end}}
+          </div>
+          {{end}}
+        </td>
+        <td>
+          <div class="actions">
+            <a href="/admin/{{.Slug}}/edit" class="btn btn-secondary">Edit</a>
+            <form method="POST" action="/admin/{{.Slug}}/delete" onsubmit="return confirm('Delete {{.Title}}?')">
+              <button type="submit" class="btn btn-danger">Delete</button>
+            </form>
+          </div>
+        </td>
+      </tr>
+      {{end}}
+    </tbody>
+  </table>
+  {{else}}
+  <div class="empty">No posts yet. <a href="/admin/new">Create one.</a></div>
+  {{end}}
+{{end}}
author	ivar <i@oiee.no>	2026-04-03 14:46:05 +0200
committer	ivar <i@oiee.no>	2026-04-03 14:46:05 +0200
commit	a46309ac64261814d931f538fad373ea8a4f0e95 (patch)
tree	6aeb1333071e433fc9e3bc7779b8b41d9e270544
parent	a21fa502891a6d2f0600485b1b76762ecc178fd0 (diff)
download	nebbet.no-a46309ac64261814d931f538fad373ea8a4f0e95.tar.xz nebbet.no-a46309ac64261814d931f538fad373ea8a4f0e95.zip