import {z} from 'zod'

export type CurrencyTag = 'deposit-custody' | 'deposit-trading-vault' | 'deposit-trading' | 'deposit-external' | 'withdraw-custody' | 'withdraw-trading-vault' | 'withdraw-trading' | 'withdraw-external' | 'show-custody' | 'show-trading-vault' | 'show-trading' | 'show-external' | 'show-fees-vault' | 'show-clearloop' | 'defi-allowed';

export type GetApiCurrenciesArgs = {rateFor?: string | undefined, mainCurrency?: string | undefined, currencies?: Array<string> | undefined, tags?: Array<CurrencyTag> | undefined};

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

export const universeCurrencyExtra = z.object({});

export const currencyTag = z.enum(["deposit-custody", "deposit-trading-vault", "deposit-trading", "deposit-external", "withdraw-custody", "withdraw-trading-vault", "withdraw-trading", "withdraw-external", "show-custody", "show-trading-vault", "show-trading", "show-external", "show-fees-vault", "show-clearloop", "defi-allowed"]);

export const currencyData = z.object({confirmations: z.string().optional(), crossChainNetworks: z.array(z.string()).optional(), currency: z.string(), decimal: z.string().optional(), extra: universeCurrencyExtra.optional(), fiat: z.boolean().optional(), mainCurrency: z.string(), name: z.string(), networkName: z.string().optional(), protocol: z.string().optional(), stableCoin: z.boolean().optional(), tags: z.array(currencyTag).optional()});

export const currenciesData = z.object({currencies: z.array(currencyData)});

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 Currencies
 * 
 * GET /currencies
 */
export const getApiCurrencies = async (args: GetApiCurrenciesArgs, options?: GetApiCurrenciesOptions) => {
const {baseUrl = "https://api.copper.co/platform", fetch: fetchFn = fetch} = options ?? {}

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

if (args.rateFor != null) query.append("rateFor", String(args.rateFor))
if (args.mainCurrency != null) query.append("mainCurrency", String(args.mainCurrency))
for (const item of args.currencies ?? []) query.append("currencies", String(item))
for (const item of args.tags ?? []) query.append("tags", String(item))

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