import {z} from 'zod'

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

export const transactionLimitResponse = z.object({maxSingleTransactionLimit: z.number().optional(), minSingleTransactionLimit: z.number().optional(), dailyTransactionLimit: z.number().optional(), maxLifetimeLimit: z.number().optional()});

export const defaultConfigurationResponse = z.object({kyc: transactionLimitResponse, noKyc: transactionLimitResponse});

export const fiatCurrency = z.object({name: z.string(), logo: z.string(), isoCode: z.string(), symbol: z.string().optional(), unicodeSymbol: z.string().optional(), transactionLimitsConfig: defaultConfigurationResponse.optional()});

export const tokens = z.object({symbol: z.string(), networkId: z.string(), decimals: z.number(), isNative: z.boolean(), address: z.string().optional()});

export const blockchainNetwork = z.object({networkId: z.string(), name: z.string(), logo: z.string(), explorer: z.string(), chainId: z.number(), nativeAsset: z.string(), availableTokens: z.array(tokens).optional()});

export const paymentChannelSupportedCurrency = z.object({country: z.string().optional(), currency: z.string().optional()});

export const paymentChannel = z.object({paymentChannelId: z.string().optional(), name: z.string(), supportedCurrencies: z.array(paymentChannelSupportedCurrency).optional()});

export const tradeOptions = z.object({fiats: z.array(fiatCurrency), networks: z.array(blockchainNetwork), paymentChannels: z.array(paymentChannel).optional(), transactionLimitsConfig: defaultConfigurationResponse.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
};

/**
 * Trade options / configurations for onboard
 * 
 * GET /exchange/api/orders/trade-options
 */
export const getApiExchangeApiOrdersTradeOptions = async (options?: GetApiExchangeApiOrdersTradeOptionsOptions) => {
const {baseUrl = "https://external.dev.onboardpay.co", fetch: fetchFn = fetch} = options ?? {}

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

const url = `${baseUrl.replace(/\/+$/, '')}/exchange/api/orders/trade-options${query.size > 0 ? `?${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(tradeOptions, await res.json())
};