import { prisma } from '../../lib/prisma.js'

export async function registerAdminReviewRoutes(fastify) {
  fastify.get('/api/admin/reviews', { preHandler: [fastify.verifyAdmin] }, async (request, reply) => {
    const status = typeof request.query?.status === 'string' ? request.query.status.trim() : 'pending'

    const pageRaw = request.query?.page
    const pageParsed = typeof pageRaw === 'string' ? Number(pageRaw) : Number(pageRaw)
    const page = Number.isFinite(pageParsed) && pageParsed > 0 ? Math.floor(pageParsed) : 1

    const pageSizeRaw = request.query?.pageSize
    const pageSizeParsed = typeof pageSizeRaw === 'string' ? Number(pageSizeRaw) : Number(pageSizeRaw)
    const pageSize = Number.isFinite(pageSizeParsed) && pageSizeParsed > 0 ? Math.floor(pageSizeParsed) : 20
    if (pageSize > 100) return reply.code(400).send({ error: 'pageSize должен быть ≤ 100' })

    const where = status ? { status } : {}
    const total = await prisma.review.count({ where })
    const items = await prisma.review.findMany({
      where,
      include: {
        user: { select: { id: true, email: true, name: true } },
        product: { select: { id: true, title: true } },
      },
      orderBy: { createdAt: 'desc' },
      skip: (page - 1) * pageSize,
      take: pageSize,
    })

    return { items, total, page, pageSize }
  })

  fastify.patch('/api/admin/reviews/:id', { preHandler: [fastify.verifyAdmin] }, async (request, reply) => {
    const { id } = request.params
    const action = String(request.body?.action || '').trim()
    if (action !== 'approve' && action !== 'reject') {
      return reply.code(400).send({ error: 'action должен быть approve или reject' })
    }

    const existing = await prisma.review.findUnique({
      where: { id },
      include: {
        product: { select: { title: true } },
        user: { select: { name: true, email: true } },
      },
    })
    if (!existing) return reply.code(404).send({ error: 'Отзыв не найден' })

    const updated = await prisma.review.update({
      where: { id },
      data: {
        status: action === 'approve' ? 'approved' : 'rejected',
        moderatedAt: new Date(),
      },
    })
    request.server.eventBus.emit('review:created', {
      rating: updated.rating,
      text: updated.text || '',
      productTitle: existing.product?.title || '',
      userName: existing.user?.name || existing.user?.email || '',
      reviewId: updated.id,
    })

    return { item: updated }
  })
}