import {z} from 'zod'

export type GetApiCurrencyRatesArgs = {page_limit?: number | undefined, page_offset?: number | undefined, sort_by?: string | undefined, q?: string | undefined, full?: string | undefined};

export type GetApiCurrencyRatesOptions = {baseUrl?: string | undefined, Auth0?: string | undefined, fetch?: typeof fetch | undefined};

export const listMetadata = z.object({status: z.string(), count: z.number().int(), total_count: z.number().int().optional(), offset: z.number().int().optional(), next_page: z.string().optional(), prev_page: z.string().optional()});

export const currencyRateCollection = z.object({data: z.array(z.object({id: z.number().int().optional(), entity_type: z.string().optional(), name: z.string().optional()})).optional(), meta: listMetadata.optional()});

export const currencyRateFull = z.object({id: z.number().int().optional(), version: z.number().int().optional(), date: z.string().optional(), currency_code: z.string().max(3).optional(), rate: z.number().optional(), created_on: z.string().optional(), updated_on: z.string().optional()});

export const currencyRateCollectionFull = z.object({data: z.array(currencyRateFull).optional(), meta: listMetadata.optional()});

export const getApiCurrencyRatesResponse = z.union([currencyRateCollection, currencyRateCollectionFull]);

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
};

/**
 * List Currency Rates
 * 
 * GET /currency_rates
 */
export const getApiCurrencyRates = async (args: GetApiCurrencyRatesArgs, options?: GetApiCurrencyRatesOptions) => {
const {baseUrl = "https://api.mediamath.com/api/v3.0", fetch: fetchFn = fetch, Auth0} = options ?? {}

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

if (args.page_limit != null) query.append("page_limit", String(args.page_limit))
if (args.page_offset != null) query.append("page_offset", String(args.page_offset))
if (args.sort_by != null) query.append("sort_by", String(args.sort_by))
if (args.q != null) query.append("q", String(args.q))
if (args.full != null) query.append("full", String(args.full))
if (Auth0 !== undefined) headers.set('authorization', `Bearer ${Auth0}`)

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