refacto: use @db/sqlite for better usage

src/data/db.ts

@@ -1,33 +1,32 @@
-import { DB } from "https://deno.land/x/sqlite/mod.ts";
+import { Database } from "@db/sqlite";
 import type { Note } from "./note.ts";
 
-export const db = new DB(Deno.env.get("SQLITE_PATH") ?? "notes.db");
+export const db = new Database(Deno.env.get("SQLITE_PATH") ?? "notes.db");
 try {
-  const [[journalMode]] = db.query<[string]>("PRAGMA journal_mode=WAL");
-  db.query("PRAGMA busy_timeout=5000");
-  console.log(`[db] journal_mode=${journalMode}, busy_timeout=5000`);
+  db.exec("PRAGMA journal_mode=WAL");
+  db.exec("PRAGMA busy_timeout=5000");
+  const [row] = db.prepare("PRAGMA journal_mode").all<{ journal_mode: string }>();
+  console.log(`[db] journal_mode=${row.journal_mode}, busy_timeout=5000`);
 } catch (e) {
   console.error("[db] failed to set PRAGMAs:", e);
 }
 
-export const getNotes = (cursor?: string, limit = 20) => {
-  const rows = cursor
-    ? db.query<[string, string, string, string, string]>(
-      "SELECT did, rkey, title, publishedAt, createdAt FROM note WHERE rkey < ? ORDER BY rkey DESC LIMIT ?",
-      [cursor, limit],
-    )
-    : db.query<[string, string, string, string, string]>(
-      "SELECT did, rkey, title, publishedAt, createdAt FROM note ORDER BY rkey DESC LIMIT ?",
-      [limit],
-    );
+type NoteRow = {
+  did: string;
+  rkey: string;
+  title: string;
+  publishedAt: string;
+  createdAt: string;
+};
 
-  const notes = rows.map(([did, rkey, title, publishedAt, createdAt]) => ({
-    did,
-    rkey,
-    title,
-    publishedAt,
-    createdAt,
-  }));
+export const getNotes = (cursor?: string, limit = 20) => {
+  const notes = cursor
+    ? db.prepare(
+      "SELECT did, rkey, title, publishedAt, createdAt FROM note WHERE rkey < ? ORDER BY rkey DESC LIMIT ?",
+    ).all<NoteRow>(cursor, limit)
+    : db.prepare(
+      "SELECT did, rkey, title, publishedAt, createdAt FROM note ORDER BY rkey DESC LIMIT ?",
+    ).all<NoteRow>(limit);
 
   return {
     notes,
@@ -36,23 +35,13 @@ export const getNotes = (cursor?: string, limit = 20) => {
 };
 
 export const getNotesByDid = (did: string, cursor?: string, limit = 20) => {
-  const rows = cursor
-    ? db.query<[string, string, string, string, string]>(
+  const notes = cursor
+    ? db.prepare(
       "SELECT did, rkey, title, publishedAt, createdAt FROM note WHERE did = ? AND rkey < ? ORDER BY rkey DESC LIMIT ?",
-      [did, cursor, limit],
-    )
-    : db.query<[string, string, string, string, string]>(
+    ).all<NoteRow>(did, cursor, limit)
+    : db.prepare(
       "SELECT did, rkey, title, publishedAt, createdAt FROM note WHERE did = ? ORDER BY rkey DESC LIMIT ?",
-      [did, limit],
-    );
-
-  const notes = rows.map(([did, rkey, title, publishedAt, createdAt]) => ({
-    did,
-    rkey,
-    title,
-    publishedAt,
-    createdAt,
-  }));
+    ).all<NoteRow>(did, limit);
 
   return {
     notes,
@@ -61,35 +50,26 @@ export const getNotesByDid = (did: string, cursor?: string, limit = 20) => {
 };
 
 export const deleteNote = ({ did, rkey }: { did: string; rkey: string }) => {
-  db.query("DELETE FROM note WHERE did = ? AND rkey = ?", [did, rkey]);
+  db.exec("DELETE FROM note WHERE did = ? AND rkey = ?", did, rkey);
 };
 
 export const getCursor = (): string | undefined => {
-  const rows = db.query<[string]>(
+  const row = db.prepare(
     "SELECT value FROM state WHERE key = 'cursor'",
-  );
-  return rows[0]?.[0];
+  ).get<{ value: string }>();
+  return row?.value;
 };
 
 export const saveCursor = (cursor: number) => {
-  db.query(
+  db.exec(
     "INSERT OR REPLACE INTO state (key, value) VALUES ('cursor', ?)",
-    [String(cursor)],
+    String(cursor),
   );
 };
 
 export const upsertNote = (note: Note) => {
   const now = new Date().toISOString();
-  const params = [
-    note.title,
-    note.publishedAt ? new Date(note.publishedAt).toISOString() : now,
-    note.createdAt ? new Date(note.createdAt).toISOString() : now,
-    note.did,
-    note.rkey,
-  ];
-  console.log(`[db] upsertNote params: ${JSON.stringify(params)}`);
-
-  db.query(
+  db.exec(
     `
     INSERT INTO note (
       title,
@@ -104,6 +84,10 @@ export const upsertNote = (note: Note) => {
       title = excluded.title,
       publishedAt = excluded.publishedAt
     `,
-    params,
+    note.title,
+    note.publishedAt ? new Date(note.publishedAt).toISOString() : now,
+    note.createdAt ? new Date(note.createdAt).toISOString() : now,
+    note.did,
+    note.rkey,
   );
 };