feat: repository layer with tests

server/utils/repo.ts

@@ -0,0 +1,99 @@
+import postgres from "postgres";
+import { randomUUID } from "node:crypto";
+
+type Sql = ReturnType<typeof postgres>;
+
+export interface ListRow {
+  id: string;
+  name: string;
+}
+
+export interface TaskRow {
+  id: string;
+  list_id: string;
+  title: string;
+  description: string | null;
+  source: string;
+  consumed: boolean;
+  created_at: Date;
+  updated_at: Date;
+}
+
+export async function getLists(sql: Sql): Promise<ListRow[]> {
+  return sql<ListRow[]>`select id, name from lists order by name`;
+}
+
+/** Full-replace catalog: upsert all supplied, delete any list not present (cascades tasks). */
+export async function replaceLists(
+  sql: Sql,
+  lists: { id: string; name: string }[],
+): Promise<void> {
+  await sql.begin(async (tx) => {
+    for (const l of lists) {
+      await tx`
+        insert into lists (id, name, updated_at)
+        values (${l.id}, ${l.name}, now())
+        on conflict (id) do update set name = excluded.name, updated_at = now()`;
+    }
+    if (lists.length) {
+      const ids = lists.map((l) => l.id);
+      await tx`delete from lists where id <> all(${ids})`;
+    } else {
+      await tx`delete from lists`;
+    }
+  });
+}
+
+export async function listExists(sql: Sql, id: string): Promise<boolean> {
+  const rows = await sql`select 1 from lists where id = ${id}`;
+  return rows.length > 0;
+}
+
+export async function getTasksForList(sql: Sql, listId: string): Promise<TaskRow[]> {
+  return sql<TaskRow[]>`select * from tasks where list_id = ${listId} order by created_at`;
+}
+
+export async function createWebTask(
+  sql: Sql,
+  t: { listId: string; title: string; description: string | null },
+): Promise<TaskRow> {
+  const id = randomUUID();
+  const [row] = await sql<TaskRow[]>`
+    insert into tasks (id, list_id, title, description, source, consumed)
+    values (${id}, ${t.listId}, ${t.title}, ${t.description}, 'web', false)
+    returning *`;
+  return row;
+}
+
+/** Idempotent upsert of a desktop Idle task by id. Returns whether a row was inserted. */
+export async function upsertDesktopTask(
+  sql: Sql,
+  id: string,
+  t: { listId: string; title: string; description?: string | null },
+): Promise<{ created: boolean }> {
+  const [row] = await sql<{ created: boolean }[]>`
+    insert into tasks (id, list_id, title, description, source)
+    values (${id}, ${t.listId}, ${t.title}, ${t.description ?? null}, 'desktop')
+    on conflict (id) do update set
+      list_id = excluded.list_id,
+      title = excluded.title,
+      description = excluded.description,
+      updated_at = now()
+    returning (xmax = 0) as created`;
+  return { created: row.created };
+}
+
+/** Web-created tasks the desktop has not yet imported. */
+export async function getUnconsumed(sql: Sql): Promise<TaskRow[]> {
+  return sql<TaskRow[]>`
+    select * from tasks where source = 'web' and consumed = false order by created_at`;
+}
+
+export async function consume(sql: Sql, id: string): Promise<boolean> {
+  const res = await sql`update tasks set consumed = true, updated_at = now() where id = ${id}`;
+  return res.count > 0;
+}
+
+export async function deleteTask(sql: Sql, id: string): Promise<void> {
+  await sql`delete from tasks where id = ${id}`;
+}