Add update and delete for books (#1)

* add delete for book

* add update for book

src/server.ts

@@ -214,6 +214,56 @@ const app = new Elysia()
       ),
     },
   )
+  .delete('book/:isbn', async ({ params: { isbn }, set }) => {
+    const client = getClient()
+
+    if (await client.query('SELECT * FROM books where isbn = $1', [isbn]).then((it) => it.rows.length === 0)) {
+      set.status = 'Not Found'
+      return null
+    }
+
+    await client.query('DELETE FROM books WHERE isbn = $1', [isbn])
+
+    console.info(`Deleted book with ISBN ${isbn}`)
+
+    return { isbn }
+  })
+  .put(
+    'book/:isbn',
+    async ({ params: { isbn }, body, set }) => {
+      const client = getClient()
+
+      const isbnRegex = /^(?=(?:\D*\d){10}(?:(?:\D*\d){3})?$)[\d-]+$/
+      if (!isbnRegex.test(body.isbn)) {
+        set.status = 'Bad Request'
+        return null
+      }
+
+      const result = await client.query<Pick<DbBook, 'isbn' | 'published_date' | 'title'>>(
+        'UPDATE books SET isbn = $1, title = $2, published_date = $3 WHERE isbn = $4 RETURNING isbn, title, published_date',
+        [body.isbn, body.title, body.published_date, isbn],
+      )
+
+      if (result.rows.length === 0) return null
+
+      const updatedBook = result.rows[0]
+      return updatedBook
+    },
+    {
+      response: t.Nullable(
+        t.Object({
+          isbn: t.String(),
+          title: t.String(),
+          published_date: t.Date({ description: 'ISO8601 Date' }),
+        }),
+      ),
+      body: t.Object({
+        isbn: t.String(),
+        title: t.String(),
+        published_date: t.String({ description: 'ISO8601 Date' }),
+      }),
+    },
+  )
   .post('dev/re-seed', async () => {
     const client = getClient()
     await client.query('BEGIN')