import { Injectable } from '@nestjs/common';

import { PrismaService } from '../prisma/prisma.service';

/**
 * Whether the instance still requires the first-run setup wizard
 * (issue #80). Setup is pending until `setup.completedAt` is written —
 * by the wizard's complete step, by env pre-seeding, by the fixture seed,
 * or by the backfill migration for instances that predate the wizard.
 *
 * Reads the row directly instead of going through InstanceSettingsService:
 * that service caches misses, and a request hitting a still-pending
 * instance must not freeze the pending state past an external seed (the
 * e2e stacks seed a running api). Completion is permanent, so a completed
 * answer is remembered for the process lifetime and costs nothing per
 * request; while pending, the instance serves almost no traffic anyway.
 */
@Injectable()
export class SetupStateService {
  private completed = false;

  constructor(private readonly prisma: PrismaService) {}

  async isPending(): Promise<boolean> {
    if (this.completed) return false;
    const row = await this.prisma.instanceSetting.findUnique({
      where: { key: 'setup.completedAt' },
      select: { value: true },
    });
    if (typeof row?.value === 'string' && row.value) {
      this.completed = true;
      return false;
    }
    return true;
  }
}