feat: add recent data in top page

package.json

@@ -35,6 +35,7 @@
 	"type": "module",
 	"dependencies": {
 		"dotenv": "^16.4.5",
+		"mdsvex": "^0.12.3",
 		"pg": "^8.12.0",
 		"sass": "^1.77.8"
 	}

src/lib/server/database/init_db.ts

@@ -1,7 +1,7 @@
 // initialize
 import PG from '$lib/server/database';
-
 import fs from 'fs';
+import { compile } from 'mdsvex';
 
 export default async function init() {
 
@@ -13,9 +13,12 @@ export default async function init() {
         { name: 'seq', type: 'serial', constraint: 'primary key' },
         { name: 'id', type: 'text', constraint: 'not null' },
         { name: 'title', type: 'text', constraint: 'not null' },
+        { name: 'category', type: 'text', constraint: 'not null' },
         { name: 'released_at', type: 'timestamp', constraint: 'not null' },
         { name: 'updated_at', type: 'timestamp', constraint: 'not null' },
         { name: 'tags', type: 'text[]', constraint: 'not null' },
+        { name: 'image', type: 'text', constraint: '' },
+        { name: 'publish', type: 'text', constraint: 'not null' },
         { name: 'content', type: 'text', constraint: 'not null' },
       ],
     },
@@ -34,6 +37,7 @@ export default async function init() {
         { name: 'seq', type: 'serial', constraint: 'primary key' },
         { name: 'id', type: 'text', constraint: 'not null' },
         { name: 'title', type: 'text', constraint: 'not null' },
+        { name: 'category', type: 'text', constraint: 'not null' },
         { name: 'created_at', type: 'timestamp', constraint: 'not null' },
         { name: 'updated_at', type: 'timestamp', constraint: 'not null' },
         { name: 'tags', type: 'text[]', constraint: 'not null' },
@@ -58,8 +62,17 @@ export default async function init() {
         { name: 'posted_at', type: 'timestamp', constraint: 'not null' },
         { name: 'content', type: 'text', constraint: 'not null' },
       ],
+    },
+    {
+      name: 'tag',
+      columns: [
+        { name: 'seq', type: 'serial', constraint: 'primary key' },
+        { name: 'name', type: 'text', constraint: 'not null' },
+        { name: 'ref_count', type: 'integer', constraint: 'not null' },
+      ],
     }
   ];
+
   const db = await PG();
   try {
     await db.begin();
@@ -79,7 +92,6 @@ export default async function init() {
     await db.rollback();
   }
 
-  // Check if the article are already in the database
   const articleFiles: ArticleFileItem[] = [];
   function scanDir(path: string) {
     const files = fs.readdirSync(path);
@@ -89,13 +101,51 @@ export default async function init() {
       if (stat.isDirectory()) {
         scanDir(dir);
       } else {
-        // articleFiles.push({ path: `${path}/${file}`, id: file });
-        console.log(`${path}/${file}`);
+        articleFiles.push({ path: `${path}/${file}`, id: file });
       }
     }
   }
   scanDir('./articles/dist');
 
+  await db.query('update tag set ref_count = 0');
+  db.commit();
+
+  for (const { path, id } of articleFiles) {
+    const res = await db.query('select * from article where id = $1', [id]);
+    const md = await compile(fs.readFileSync(path, 'utf-8'));
+    const title = md.data.fm.title;
+    const category = path.split('/')[3];
+    const tags: string[] = md.data.fm.tags;
+    const released_at = new Date(md.data.fm.released_at);
+    const updated_at = new Date(md.data.fm.updated_at);
+    const image = md.data.fm.image;
+    const publish = md.data.fm.publish;
+    const content = md.code;
+    if (res.rowCount == 0) {
+      console.log(`New article: ${id}`);
+      await db.query(
+        'insert into article (id, title, category, released_at, updated_at, tags, image, publish, content) values ($1, $2, $3, $4, $5, $6, $7, $8, $9)',
+        [id, title, category, released_at, updated_at, tags, image, publish, content]
+      );
+    } else if (res.rows[0].updated_at < updated_at) {
+      console.log(`Update article: ${id}`);
+      await db.query(
+        'update article set title = $2, updated_at = $4, tags = $5, content = $6 where id = $1',
+        [id, title, updated_at, tags, content]
+      );
+    } else {
+      console.log(`Article ${id} is already up-to-date`);
+    }
+    for (const tag of tags) {
+      if ((await db.query('select * from tag where name = $1', [tag])).rowCount == 0) {
+        db.query('insert into tag (name, ref_count) values ($1, 1)', [tag]);
+      } else {
+        db.query('update tag set ref_count = ref_count + 1 where name = $1', [tag]);
+      }
+    }
+  }
+
+  await db.commit();
   await db.release();
 }
 

src/routes/+page.server.ts

@@ -4,29 +4,46 @@ import type { Content } from '$lib/article';
 import PG from '$lib/server/database';
 
 let data: {
-  recent: Content[],
+  recent: {
+    title: string,
+    image: string,
+    date: string,
+    link: string,
+    tags: string[]
+  }[],
   tags: string[],
-  updated: string
+  updated: string,
 } = {
-  recent: [
-    {
-      title: "title",
-      image: "image",
-      date: "date",
-      link: "link",
-      tags: ["tag1", "tag2"],
-    },
-  ],
-  tags: ["hoge", "fuga", "piyo"],
+  recent: [],
+  tags: [],
   updated: "",
 };
 
 export const load: PageServerLoad = async ({ params }) => {
   const db = await PG();
-  const now = await db.query('SELECT NOW()');
-  await db.release();
+  await db.begin();
+  try {
+    const recent_articles = await db.query(
+      "SELECT * FROM article WHERE publish = 'public' ORDER BY updated_at DESC LIMIT 4"
+    );
+    data.recent = recent_articles.rows.map((row) => ({
+      title: row.title,
+      image: row.image,
+      date: row.updated_at.toISOString().slice(0, 10),
+      link: `/post/${row.category}/${row.id}`,
+      tags: row.tags,
+    }));
+    const tags = await db.query("SELECT * FROM tag ORDER BY ref_count DESC");
+    data.tags = tags.rows.map((row) => row.name + ":" + row.ref_count);
+  } catch (e) {
+    await db.rollback();
+    throw error(500, e as Error);
+  } finally {
+    await db.release();
+  }
+
+  data.updated = data.recent[0].date;
 
-  data.updated = now.rows[0].now;
   return data;
 }