import {z} from 'zod'

export type CurrencyCode = unknown;

export type Percentage = unknown;

export type QuoteItem = {base_currency?: CurrencyCode | undefined, base_amount?: string | undefined, quote_currency?: CurrencyCode | undefined, markup_percent?: Percentage | undefined, fx_id?: string | undefined};

export type QuoteItemList = Array<QuoteItem>;

export type QuoteExchangeRatesRequest = {organization?: string | undefined, quote_items: QuoteItemList};

export type CreateApiV2PricingQuoteExchangeRatesArgs = {body: QuoteExchangeRatesRequest};

export type CreateApiV2PricingQuoteExchangeRatesOptions = {baseUrl?: string | undefined, Oauth2?: string | undefined, fetch?: typeof fetch | undefined};

export const currencyCode = z.string().min(3).max(3);

export const money = z.object({currency_code: currencyCode, value: z.string().max(32)});

export const dateTime = z.string().min(20).max(64);

export const rateDetail = z.object({base_amount: money, quote_amount: money, exchange_rate: z.string().min(1).max(32), fx_id: z.string().min(1).max(4000).optional(), expiry_time: dateTime.optional(), rate_refresh_time: dateTime.optional(), update_time: dateTime.optional()});

export const rateDetailList = z.array(rateDetail);

export const quoteExchangeRatesResponse = z.object({exchange_rate_quotes: rateDetailList});

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
};

/**
 * Create Exchange Rate Quote
 * 
 * POST /v2/pricing/quote-exchange-rates
 */
export const createApiV2PricingQuoteExchangeRates = async (args: CreateApiV2PricingQuoteExchangeRatesArgs, options?: CreateApiV2PricingQuoteExchangeRatesOptions) => {
const {baseUrl = "https://api-m.paypal.com", fetch: fetchFn = fetch, Oauth2} = options ?? {}

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

if (Oauth2 !== undefined) headers.set('authorization', `Bearer ${Oauth2}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v2/pricing/quote-exchange-rates${query.size > 0 ? `?${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(quoteExchangeRatesResponse, await res.json())
};