import {z} from 'zod'

export type GetApiChannelV1ExchangeRatesArgs = {baseCurrency?: ('USD' | 'CAD' | 'EUR' | 'JPY' | 'GBP' | 'KRW' | 'CHF' | 'SEK' | 'SGD' | 'MYR' | 'AUD' | 'MXN' | 'INR' | 'BRL' | 'DKK' | 'NZD' | 'NOK' | 'ZAR' | 'PHP' | 'CNY' | 'SAR' | 'GTQ') | undefined, counterCurrency?: ('USD' | 'CAD' | 'EUR' | 'JPY' | 'GBP' | 'KRW' | 'CHF' | 'SEK' | 'SGD' | 'MYR' | 'AUD' | 'MXN' | 'INR' | 'BRL' | 'DKK' | 'NZD' | 'NOK' | 'ZAR' | 'PHP' | 'CNY' | 'SAR' | 'GTQ') | undefined, page?: number | undefined, size?: number | undefined, sortField?: ('BASE_CURRENCY' | 'COUNTER_CURRENCY' | 'VALID_FROM') | undefined, sortOrder?: ('ASC' | 'DESC') | undefined};

export type GetApiChannelV1ExchangeRatesOptions = {baseUrl?: string | undefined, fetch?: typeof fetch | undefined};

export const link = z.object({href: z.string().optional(), rel: z.string().optional()}).nullable();

export const currency = z.enum(["USD", "CAD", "EUR", "JPY", "GBP", "KRW", "CHF", "SEK", "SGD", "MYR", "AUD", "MXN", "INR", "BRL", "DKK", "NZD", "NOK", "ZAR", "PHP", "CNY", "SAR", "GTQ", "IDR", "ARS", "COP", "PEN"]);

export const currencyExchangeRateResponse = z.object({baseCurrency: currency.optional(), counterCurrency: currency.optional(), rate: z.number().optional(), validFrom: z.number().optional(), active: z.boolean().optional(), authenticationType: z.string().optional(), oauthKey: z.string().optional(), userId: z.number().optional(), currencyExchangeRateUuid: z.string().optional()});

export const pagedResource = z.object({totalPages: z.number().optional(), number: z.number().optional(), size: z.number().optional(), totalElements: z.number().optional()});

export const currencyExchangeRateResponseList = z.object({links: z.array(link).optional(), content: z.array(currencyExchangeRateResponse).optional(), page: pagedResource.optional()}).nullable();

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
};

/**
 * Read all Currency Exchange Rates
 * 
 * GET /channel/v1/exchangeRates
 */
export const getApiChannelV1ExchangeRates = async (args: GetApiChannelV1ExchangeRatesArgs, options?: GetApiChannelV1ExchangeRatesOptions) => {
const {baseUrl = "https://marketplace.appdirect.com/api", fetch: fetchFn = fetch} = options ?? {}

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

if (args.baseCurrency != null) query.append("baseCurrency", String(args.baseCurrency))
if (args.counterCurrency != null) query.append("counterCurrency", String(args.counterCurrency))
if (args.page != null) query.append("page", String(args.page))
if (args.size != null) query.append("size", String(args.size))
if (args.sortField != null) query.append("sortField", String(args.sortField))
if (args.sortOrder != null) query.append("sortOrder", String(args.sortOrder))

const url = `${baseUrl.replace(/\/+$/, '')}/channel/v1/exchangeRates${query.size > 0 ? `?${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(currencyExchangeRateResponseList, await res.json())
};