import {z} from 'zod'

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

export const hexId = z.string();

export const methylationArrayData = z.array(z.object({source_name: z.string().optional(), characteristicsorganism: z.string().optional(), characteristicsindividual: z.string().optional(), commentbiosd_sample: z.string().optional(), characteristicsorganism_part: z.string().optional(), characteristicsage: z.string().optional(), unittime_unit: z.string().optional(), term_source_ref: z.string().optional(), term_accession_number: z.string().optional(), characteristicssex: z.string().optional(), characteristicssmoking_status: z.string().optional(), commentupdate_information: z.string().optional(), material_type: z.string().optional(), protocol_ref: z.string().optional(), extract_name: z.string().optional(), labeled_extract_name: z.string().optional(), label: z.string().optional(), assay_name: z.string().optional(), technology_type: z.string().optional(), array_design_ref: z.string().optional(), array_data_file: z.string().optional(), comment_arrayexpress_ftp_file: z.string().optional(), factor_valueage: z.string().optional(), factor_value_organism_part: z.string().optional(), factor_value_smoking_status: z.string().optional(), factor_value_individual: z.string().optional(), type: z.string().optional(), accession: z.string().optional(), meta_data_source: z.string().optional()}));

export const getApiAllMethArrayResponse = z.object({hex_id: hexId.optional(), data: methylationArrayData.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
};

/**
 * Get all methylation array data
 * 
 * GET /all_meth_array
 */
export const getApiAllMethArray = async (options?: GetApiAllMethArrayOptions) => {
const {baseUrl = "https://www.personalgenomes.org.uk/api/v1.3", fetch: fetchFn = fetch} = options ?? {}

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

const url = `${baseUrl.replace(/\/+$/, '')}/all_meth_array${query.size > 0 ? `?${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(getApiAllMethArrayResponse, await res.json())
};