import { describe, it, expect, beforeEach, afterEach } from 'vitest';
import Database from 'better-sqlite3';
import { up } from '../../src/main/db/migrations/m004_status.js';

describe('m004 migration — status column', () => {
  let db: Database.Database;

  beforeEach(() => {
    db = new Database(':memory:');
    // m003 baseline (notes 테이블 with deleted_at, real schema 따름)
    db.exec(`
      CREATE TABLE notes (
        id                       TEXT PRIMARY KEY,
        raw_text                 TEXT NOT NULL,
        ai_title                 TEXT,
        ai_summary               TEXT,
        ai_status                TEXT NOT NULL
                                 CHECK (ai_status IN ('pending','done','failed')),
        ai_error                 TEXT,
        ai_provider              TEXT,
        ai_generated_at          TEXT,
        title_edited_by_user     INTEGER NOT NULL DEFAULT 0,
        summary_edited_by_user   INTEGER NOT NULL DEFAULT 0,
        user_intent              TEXT,
        intent_prompted_at       TEXT,
        created_at               TEXT NOT NULL,
        updated_at               TEXT NOT NULL,
        due_date                 TEXT,
        due_date_edited_by_user  INTEGER NOT NULL DEFAULT 0,
        deleted_at               TEXT,
        last_recalled_at         TEXT,
        recall_dismissed_at      TEXT
      );
      INSERT INTO notes (id, raw_text, ai_status, created_at, updated_at, deleted_at)
        VALUES ('a', 't1', 'done', '2026-05-01T00:00:00Z', '2026-05-01T00:00:00Z', NULL),
               ('b', 't2', 'done', '2026-05-01T00:00:00Z', '2026-05-01T00:00:00Z', '2026-05-08T00:00:00Z');
    `);
  });

  afterEach(() => {
    db.close();
  });

  it('adds status / status_changed_at / move_reason columns', () => {
    up(db);
    const cols = db.prepare(`PRAGMA table_info(notes)`).all() as Array<{ name: string }>;
    const names = cols.map((c) => c.name);
    expect(names).toContain('status');
    expect(names).toContain('status_changed_at');
    expect(names).toContain('move_reason');
  });

  it('default status="active" for non-deleted notes', () => {
    up(db);
    const a = db.prepare(`SELECT status FROM notes WHERE id=?`).get('a') as { status: string };
    expect(a.status).toBe('active');
  });

  it('migrates deleted_at != NULL to status="trashed" + status_changed_at', () => {
    up(db);
    const b = db
      .prepare(`SELECT status, status_changed_at FROM notes WHERE id=?`)
      .get('b') as { status: string; status_changed_at: string };
    expect(b.status).toBe('trashed');
    expect(b.status_changed_at).toBe('2026-05-08T00:00:00Z');
  });

  it('move_reason NULL by default', () => {
    up(db);
    const a = db.prepare(`SELECT move_reason FROM notes WHERE id=?`).get('a') as {
      move_reason: string | null;
    };
    expect(a.move_reason).toBeNull();
  });

  it('version exported as 4', async () => {
    const mod = await import('../../src/main/db/migrations/m004_status.js');
    expect(mod.version).toBe(4);
  });
});