chore: initial commit — monorepo ReadaBook (API NestJS, web PWA, Docker)

apps/api/src/progress/progress.service.ts

@@ -0,0 +1,67 @@
+import { Injectable, NotFoundException } from "@nestjs/common";
+import { desc, eq, sql } from "drizzle-orm";
+import { UpdateProgressDto } from "@readabook/shared";
+import { DatabaseService } from "../database/database.service.js";
+import { books, progress } from "../database/schema.js";
+
+@Injectable()
+export class ProgressService {
+  constructor(private readonly database: DatabaseService) {}
+
+  upsert(userId: number, bookId: number, input: UpdateProgressDto) {
+    const book = this.database.db.select({ id: books.id }).from(books).where(eq(books.id, bookId)).get();
+    if (!book) {
+      throw new NotFoundException("Book not found");
+    }
+    const now = this.database.now();
+    this.database.sqlite
+      .prepare(
+        `
+        INSERT INTO progress(user_id, book_id, locator, percent, created_at, updated_at)
+        VALUES (?, ?, ?, ?, ?, ?)
+        ON CONFLICT(user_id, book_id) DO UPDATE SET
+          locator = excluded.locator,
+          percent = excluded.percent,
+          updated_at = excluded.updated_at
+      `
+      )
+      .run(userId, bookId, input.locator, Math.round(input.percent), now, now);
+    return this.get(userId, bookId);
+  }
+
+  get(userId: number, bookId: number) {
+    const row = this.database.db
+      .select({
+        bookId: progress.bookId,
+        locator: progress.locator,
+        percent: progress.percent,
+        updatedAt: progress.updatedAt
+      })
+      .from(progress)
+      .where(sql`${progress.userId} = ${userId} AND ${progress.bookId} = ${bookId}`)
+      .get();
+    if (!row) {
+      throw new NotFoundException("Progress not found");
+    }
+    return row;
+  }
+
+  continueReading(userId: number) {
+    return this.database.db
+      .select({
+        book: books,
+        progress: {
+          bookId: progress.bookId,
+          locator: progress.locator,
+          percent: progress.percent,
+          updatedAt: progress.updatedAt
+        }
+      })
+      .from(progress)
+      .innerJoin(books, eq(progress.bookId, books.id))
+      .where(eq(progress.userId, userId))
+      .orderBy(desc(progress.updatedAt))
+      .limit(20)
+      .all();
+  }
+}