import {z} from 'zod'

export type GetApiExtractionRequestIdResultsTextArgs = {request_id: string};

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

export const answer = z.object({option: z.string(), value: z.string()});

export const currencyValues = z.object({value: z.string(), symbol: z.string(), precision: z.number().int()});

export const dateValues = z.object({day: z.number().int(), month: z.number().int(), year: z.number().int()});

export const boundingBoxSummary = z.object({bottom: z.number().int(), left: z.number().int(), right: z.number().int(), top: z.number().int()});

export const boundingBox = z.object({bottom: z.number().int(), left: z.number().int(), right: z.number().int(), top: z.number().int()});

export const boundingBoxesByPage = z.object({page: z.number().int(), bounds: z.array(boundingBox)});

export const span = z.object({end: z.number().int(), start: z.number().int()});

export const characterSpan = z.object({bounds: boundingBoxSummary.optional(), bboxes: z.array(boundingBoxesByPage), end: z.number().int(), pages: span, score: z.number(), start: z.number().int()});

export const definedTerm = z.object({term: z.string(), spans: z.array(characterSpan)});

export const durationValues = z.object({unit: z.string(), value: z.number().int()});

export const textExtraction = z.object({currencies: z.array(currencyValues).optional(), dates: z.array(dateValues).optional(), defined_term: definedTerm.optional(), durations: z.array(durationValues).optional(), spans: z.array(characterSpan).optional(), text: z.string().optional()});

export const extractionResult = z.object({answers: z.array(answer).optional(), extractions: z.array(textExtraction), field_id: z.string(), field_name: z.string()});

export const extractionTextResultResponse = z.object({file_id: z.string(), request_id: z.string(), results: z.array(extractionResult)});

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 extraction results
 * 
 * GET /extraction/{request_id}/results/text
 */
export const getApiExtractionRequestIdResultsText = async (args: GetApiExtractionRequestIdResultsTextArgs, options?: GetApiExtractionRequestIdResultsTextOptions) => {
const {baseUrl = "https://us.app.zuva.ai/api/v2", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

if (bearerAuth !== undefined) headers.set('authorization', `Bearer ${bearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/extraction/${encodeURIComponent(String(args.request_id))}/results/text${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "GET", headers})

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

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