import {z} from 'zod'

export type AttributeValueDto = {string?: (string | null) | undefined, guid?: (string | null) | undefined, bool?: (boolean | null) | undefined, int64?: (number | null) | undefined, float64?: (number | null) | undefined, dateTime?: (string | null) | undefined};

export type AttributeDto = {key?: string | undefined, value?: AttributeValueDto | undefined};

export type DenseVectorDto = {isSparse?: boolean | undefined, coordinates?: Array<number> | undefined};

export type SparseVectorDto = {isSparse?: boolean | undefined, coordinates?: Array<number> | undefined};

export type SearchQueryDto = {splitFilter?: (Array<AttributeDto> | null) | undefined, queryVectors?: (Array<DenseVectorDto | SparseVectorDto>) | undefined, k?: number | undefined, retrieveVectors?: boolean | undefined};

export type GetApiApiV1SearchIndexNameIndexVersionArgs = {indexName: string, indexVersion: string, body: SearchQueryDto};

export type GetApiApiV1SearchIndexNameIndexVersionOptions = {baseUrl: string, fetch?: typeof fetch | undefined};

export const denseVectorDto = z.object({isSparse: z.boolean().optional(), coordinates: z.array(z.number()).optional()});

export const sparseVectorDto = z.object({isSparse: z.boolean().optional(), coordinates: z.array(z.number()).optional()});

export const attributeValueDto = z.object({string: z.string().nullable().optional(), guid: z.string().nullable().optional(), bool: z.boolean().nullable().optional(), int64: z.number().int().nullable().optional(), float64: z.number().nullable().optional(), dateTime: z.string().nullable().optional()});

export const attributeDto = z.object({key: z.string().optional(), value: attributeValueDto.optional()});

export const foundDataPointDto = z.object({vector: z.union([denseVectorDto, sparseVectorDto]).nullable().optional(), attributes: z.array(attributeDto).optional(), distance: z.number().optional()});

export const searchResultDto = z.object({queryVector: z.union([denseVectorDto, sparseVectorDto]).optional(), nearestDataPoints: z.array(foundDataPointDto).optional()});

export const getApiApiV1SearchIndexNameIndexVersionResponse = z.array(searchResultDto);

export const validateResponse = async <Output>(
  schema: {
    readonly '~standard': {
      readonly validate: (value: unknown) => ({ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }) | Promise<{ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }>
    }
  },
  value: unknown
): Promise<Output> => {
  const result = await schema['~standard'].validate(value)

  if (result.issues !== undefined) {
    const detail = result.issues
      .map(({ message, path }) =>
        path?.length
          ? `${path.map((segment) => String(typeof segment === 'object' ? segment.key : segment)).join('.')}: ${message}`
          : message
      )
      .join('; ')

    throw new Error(`Response does not match the schema: ${detail}`, { cause: { issues: result.issues } })
  }

  return result.value
};

/**
 * GET /api/v1/search/{indexName}/{indexVersion}
 */
export const getApiApiV1SearchIndexNameIndexVersion = async (args: GetApiApiV1SearchIndexNameIndexVersionArgs, options: GetApiApiV1SearchIndexNameIndexVersionOptions) => {
const {baseUrl, fetch: fetchFn = fetch} = options ?? {}

const query = new URLSearchParams()
const headers = new Headers()
headers.set('content-type', "application/json")
headers.set('accept', "application/json")

const url = `${baseUrl.replace(/\/+$/, '')}/api/v1/search/${encodeURIComponent(String(args.indexName))}/${encodeURIComponent(String(args.indexVersion))}${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "GET", headers, body: JSON.stringify(args.body)})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(getApiApiV1SearchIndexNameIndexVersionResponse, await res.json())
};