import {z} from 'zod'

export type GetApiRestDiseaseVersionSamePrimaryArgs = {version: string, d1: string, year1: string, d2: string, year2: string};

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

export const samePrimaries = z.object({disease1: z.string().optional(), year1: z.number().int().optional(), disease2: z.string().optional(), year2: z.number().int().optional(), is_same: z.boolean().optional()});

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
};

/**
 * Indicate whether 2 morphologies (and diagnosis years) represent the same primary
 * 
 * GET /rest/disease/{version}/same_primary
 */
export const getApiRestDiseaseVersionSamePrimary = async (args: GetApiRestDiseaseVersionSamePrimaryArgs, options?: GetApiRestDiseaseVersionSamePrimaryOptions) => {
const {baseUrl = "https://api.seer.cancer.gov", fetch: fetchFn = fetch, apiKeyScheme} = options ?? {}

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

if (args.d1 != null) query.append("d1", String(args.d1))
if (args.year1 != null) query.append("year1", String(args.year1))
if (args.d2 != null) query.append("d2", String(args.d2))
if (args.year2 != null) query.append("year2", String(args.year2))
if (apiKeyScheme !== undefined) headers.set("X-SEERAPI-Key", apiKeyScheme)

const url = `${baseUrl.replace(/\/+$/, '')}/rest/disease/${encodeURIComponent(String(args.version))}/same_primary${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(samePrimaries, await res.json())
};