import { test, expect } from '@playwright/test';
import Database from 'better-sqlite3';
import { drizzle } from 'drizzle-orm/better-sqlite3';
import { eq } from 'drizzle-orm';
import { documents } from '../../src/db/schema_sqlite';
import { transferUserDocuments } from '../../src/lib/server/user/claim-data';

test.describe('transferUserDocuments', () => {
  test('moves document rows to new user without PK conflicts', async () => {
    process.env.BASE_URL = 'http://localhost:3003';
    process.env.AUTH_SECRET = 'test-secret';

    const sqlite = new Database(':memory:');
    sqlite.exec(`
      CREATE TABLE documents (
        id TEXT NOT NULL,
        user_id TEXT NOT NULL,
        name TEXT NOT NULL,
        type TEXT NOT NULL,
        size INTEGER NOT NULL,
        last_modified INTEGER NOT NULL,
        file_path TEXT NOT NULL,
        created_at INTEGER,
        PRIMARY KEY (id, user_id)
      );
    `);

    const db = drizzle(sqlite);

    const fromUserId = 'anon';
    const toUserId = 'user';

    await db.insert(documents).values([
      {
        id: 'doc-a',
        userId: fromUserId,
        name: 'a.pdf',
        type: 'pdf',
        size: 1,
        lastModified: 1,
        filePath: 'doc-a__a.pdf',
      },
      {
        id: 'doc-b',
        userId: fromUserId,
        name: 'b.txt',
        type: 'html',
        size: 2,
        lastModified: 2,
        filePath: 'doc-b__b.txt',
      },
      // Existing row for the destination user (conflict on insert)
      {
        id: 'doc-a',
        userId: toUserId,
        name: 'a.pdf',
        type: 'pdf',
        size: 1,
        lastModified: 1,
        filePath: 'doc-a__a.pdf',
      },
    ]);

    const transferred = await transferUserDocuments(fromUserId, toUserId, { db });
    expect(transferred).toBe(2);

    const remainingFrom = await db.select().from(documents).where(eq(documents.userId, fromUserId));
    expect(remainingFrom.length).toBe(0);

    const remainingTo = await db.select().from(documents).where(eq(documents.userId, toUserId));
    const ids = remainingTo.map((r) => r.id).sort();
    expect(ids).toEqual(['doc-a', 'doc-b']);
  });
});