3 files changed, 98 insertions, 4 deletions
diff --git a/nuldoc-src/commands/build.ts b/nuldoc-src/commands/build.ts
index d523861..911ff50 100644
--- a/nuldoc-src/commands/build.ts
+++ b/nuldoc-src/commands/build.ts
@@ -13,12 +13,14 @@ import {
   PostPage,
 } from "../pages/post.ts";
 import { generatePostListPage } from "../pages/post_list.ts";
-import { generateTagPage } from "../pages/tag.ts";
+import { generateTagPage, TagPage } from "../pages/tag.ts";
+import { generateTagListPage } from "../pages/tag_list.ts";
 
 export async function runBuildCommand(config: Config) {
   const posts = await buildPostPages(config);
   await buildPostListPage(posts, config);
-  await buildTagPages(posts, config);
+  const tags = await buildTagPages(posts, config);
+  await buildTagListPage(tags, config);
   await buildAboutPage(config);
   await buildNotFoundPage(config);
   await copyStaticFiles(config);
@@ -71,12 +73,23 @@ async function buildNotFoundPage(config: Config) {
   await writePage(notFoundPage, config);
 }
 
-async function buildTagPages(posts: PostPage[], config: Config) {
+async function buildTagPages(
+  posts: PostPage[],
+  config: Config,
+): Promise<TagPage[]> {
   const tagsAndPosts = collectTags(posts);
+  const tags = [];
   for (const [tag, posts] of tagsAndPosts) {
     const tagPage = await generateTagPage(tag, posts, config);
     await writePage(tagPage, config);
+    tags.push(tagPage);
   }
+  return tags;
+}
+
+async function buildTagListPage(tags: TagPage[], config: Config) {
+  const tagListPage = await generateTagListPage(tags, config);
+  await writePage(tagListPage, config);
 }
 
 function collectTags(posts: PostPage[]): [string, PostPage[]][] {
diff --git a/nuldoc-src/pages/tag.ts b/nuldoc-src/pages/tag.ts
index c9eaf7e..b6f136a 100644
--- a/nuldoc-src/pages/tag.ts
+++ b/nuldoc-src/pages/tag.ts
@@ -6,7 +6,10 @@ import { el, text } from "../dom.ts";
 import { Page } from "../page.ts";
 import { getPostCreatedDate, getPostUpdatedDate, PostPage } from "./post.ts";
 
-export type TagPage = Page;
+export interface TagPage extends Page {
+  tagSlug: string;
+  tagLabel: string;
+}
 
 export async function generateTagPage(
   tagSlug: string,
@@ -87,5 +90,7 @@ export async function generateTagPage(
     renderer: "html",
     destFilePath: `/tags/${tagSlug}/index.html`,
     href: `/tags/${tagSlug}/`,
+    tagSlug: tagSlug,
+    tagLabel: tagLabel,
   };
 }
diff --git a/nuldoc-src/pages/tag_list.ts b/nuldoc-src/pages/tag_list.ts
new file mode 100644
index 0000000..e4e53f0
--- /dev/null
+++ b/nuldoc-src/pages/tag_list.ts
@@ -0,0 +1,76 @@
+import { globalFooter } from "../components/global_footer.ts";
+import { globalHeader } from "../components/global_header.ts";
+import { pageLayout } from "../components/page_layout.ts";
+import { Config } from "../config.ts";
+import { el, text } from "../dom.ts";
+import { Page } from "../page.ts";
+import { TagPage } from "./tag.ts";
+
+export type TagListPage = Page;
+
+export async function generateTagListPage(
+  tags: TagPage[],
+  config: Config,
+): Promise<TagListPage> {
+  const pageTitle = "タグ一覧";
+
+  const body = el(
+    "body",
+    [["class", "list"]],
+    globalHeader(config),
+    el(
+      "main",
+      [["class", "main"]],
+      el(
+        "header",
+        [["class", "page-header"]],
+        el(
+          "h1",
+          [],
+          text(pageTitle),
+        ),
+      ),
+      ...Array.from(tags).sort((a, b) => {
+        const ta = a.tagSlug;
+        const tb = b.tagSlug;
+        if (ta > tb) return -1;
+        if (ta < tb) return 1;
+        return 0;
+      }).map((tag) =>
+        el(
+          "article",
+          [["class", "post-entry"]],
+          el(
+            "a",
+            [["href", tag.href]],
+            el(
+              "header",
+              [["class", "entry-header"]],
+              el("h2", [], text(tag.tagLabel)),
+            ),
+          ),
+        )
+      ),
+    ),
+    globalFooter(config),
+  );
+
+  const html = await pageLayout(
+    {
+      metaCopyrightYear: config.blog.siteCopyrightYear,
+      metaDescription: "タグの一覧",
+      metaKeywords: [],
+      metaTitle: pageTitle,
+      requiresSyntaxHighlight: false,
+    },
+    body,
+    config,
+  );
+
+  return {
+    root: el("__root__", [], html),
+    renderer: "html",
+    destFilePath: "/tags/index.html",
+    href: "/tags/",
+  };
+}