import {z} from 'zod'

export type GetApiConfigRatesArgs = {page?: number | undefined, size?: number | undefined};

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

export const sort = z.object({direction: z.string().optional(), property: z.string().optional(), ignoreCase: z.boolean().optional(), nullHandling: z.string().optional(), ascending: z.boolean().optional(), descending: z.boolean().optional()});

export const rateResponse = z.object({rate_id: z.string(), expiration_offset: z.number().int(), order_type: z.enum(["buy", "sell"]), rate_scale: z.number().int(), rate: z.number(), base_currency: z.string(), counter_currency: z.string(), source_currency: z.string(), destination_currency: z.string(), source_ledger: z.string(), destination_ledger: z.string(), source_ledger_account: z.string(), destination_ledger_account: z.string(), created_date: z.string(), expires_at: z.string().optional(), lower_limit: z.number(), upper_limit: z.number(), payout_method: z.string().optional(), value_type: z.enum(["MARGIN", "RATE"]), margin_type: z.literal("BPS")});

export const rates = z.object({first: z.boolean().optional(), last: z.boolean().optional(), number: z.number().int().optional(), numberOfElements: z.number().int().optional(), size: z.number().int().optional(), totalElements: z.number().int().optional(), totalPages: z.number().int().optional(), sort: z.array(sort).optional(), content: z.array(rateResponse)});

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 rates
 * 
 * GET /config/rates
 */
export const getApiConfigRates = async (args: GetApiConfigRatesArgs, options: GetApiConfigRatesOptions) => {
const {baseUrl, fetch: fetchFn = fetch, Bearer} = options ?? {}

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

if (args.page != null) query.append("page", String(args.page))
if (args.size != null) query.append("size", String(args.size))
if (Bearer !== undefined) headers.set("Authorization", Bearer)

const url = `${baseUrl.replace(/\/+$/, '')}/config/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(rates, await res.json())
};