import {z} from 'zod'

export type FlexibleCBPortfolio = {CBId?: Array<string> | undefined} | {[key: string]: unknown};

export type Portfolio = {name: string, entities: FlexibleCBPortfolio};

export type RatingDistributionRequest = {portfolio: Portfolio, EffectiveDateId?: number | undefined, effectivedateid_min?: number | undefined, effectivedateid_min_lag_months?: number | undefined, use_client_scale?: boolean | undefined, use_cb7_scale?: boolean | undefined, facet_column?: string | undefined};

export type RequestEnvelopeRatingDistributionRequest = {Parameters: RatingDistributionRequest};

export type CreateApiApiAnalyticsRatingDistributionArgs = {body: RequestEnvelopeRatingDistributionRequest};

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

export const ratingDistributionResponse = z.object({EffectiveDateId: z.array(z.number().int()), aaa: z.array(z.number()), "aa+": z.array(z.number()), aa: z.array(z.number()), "aa-": z.array(z.number()), "a+": z.array(z.number()), a: z.array(z.number()), "a-": z.array(z.number()), "bbb+": z.array(z.number()), bbb: z.array(z.number()), "bbb-": z.array(z.number()), "bb+": z.array(z.number()), bb: z.array(z.number()), "bb-": z.array(z.number()), "b+": z.array(z.number()), b: z.array(z.number()), "b-": z.array(z.number()), "ccc+": z.array(z.number()), ccc: z.array(z.number()), "ccc-": z.array(z.number()), cc: z.array(z.number()), c: z.array(z.number())});

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
};

/**
 * Rating Distribution
 * 
 * POST /api/analytics/rating-distribution
 */
export const createApiApiAnalyticsRatingDistribution = async (args: CreateApiApiAnalyticsRatingDistributionArgs, options?: CreateApiApiAnalyticsRatingDistributionOptions) => {
const {baseUrl = "https://api.creditbenchmark.com", fetch: fetchFn = fetch, BearerAuth} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/api/analytics/rating-distribution${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "POST", 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(ratingDistributionResponse, await res.json())
};