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import { RETRIEVE_METHOD, type RetrievalConfig } from '@/types/app'
import type {
  DefaultModelResponse,
  Model,
} from '@/app/components/header/account-setting/model-provider-page/declarations'

export const isReRankModelSelected = ({

  rerankDefaultModel,

  isRerankDefaultModelVaild,

  retrievalConfig,

  rerankModelList,

  indexMethod,

}: {

  rerankDefaultModel?: DefaultModelResponse

  isRerankDefaultModelVaild: boolean

  retrievalConfig: RetrievalConfig

  rerankModelList: Model[]

  indexMethod?: string

}) => {
  const rerankModelSelected = (() => {
    if (retrievalConfig.reranking_model?.reranking_model_name) {
      const provider = rerankModelList.find(({ provider }) => provider === retrievalConfig.reranking_model?.reranking_provider_name)

      return provider?.models.find(({ model }) => model === retrievalConfig.reranking_model?.reranking_model_name)
    }

    if (isRerankDefaultModelVaild)
      return !!rerankDefaultModel

    return false
  })()

  if (
    indexMethod === 'high_quality'
    && (retrievalConfig.reranking_enable || retrievalConfig.search_method === RETRIEVE_METHOD.hybrid)
    && !rerankModelSelected
  )
    return false

  return true
}

export const ensureRerankModelSelected = ({

  rerankDefaultModel,

  indexMethod,

  retrievalConfig,

}: {

  rerankDefaultModel: DefaultModelResponse

  retrievalConfig: RetrievalConfig

  indexMethod?: string

}) => {
  const rerankModel = retrievalConfig.reranking_model?.reranking_model_name ? retrievalConfig.reranking_model : undefined
  if (
    indexMethod === 'high_quality'
    && (retrievalConfig.reranking_enable || retrievalConfig.search_method === RETRIEVE_METHOD.hybrid)
    && !rerankModel
  ) {
    return {
      ...retrievalConfig,
      reranking_model: {
        reranking_provider_name: rerankDefaultModel.provider.provider,
        reranking_model_name: rerankDefaultModel.model,
      },
    }
  }
  return retrievalConfig
}