import History from '#models/history'
import type { SupplierPricePoint, EbayData } from '#models/history'

interface RecordHistoryInput {
  username: string
  productId: number
  dataSources: SupplierPricePoint[]
  dataEbay: EbayData
  aiResult?: Record<string, any> | null
}

/**
 * Lưu snapshot dữ liệu mỗi lần lấy về để AI gợi ý giá.
 */
export default class HistoryService {
  static async record(input: RecordHistoryInput): Promise<History> {
    return History.create({
      username: input.username,
      productId: input.productId,
      dataSources: input.dataSources,
      dataEbay: input.dataEbay,
      aiResult: input.aiResult ?? null,
    })
  }

  static async listForProduct(productId: number, limit = 50) {
    return History.query()
      .where('product_id', productId)
      .orderBy('time', 'desc')
      .limit(limit)
  }
}