import {z} from 'zod'

export type ApprovalPrepareRequest = {signingNetwork?: string | undefined, maxAllowedCount: string, expiresAt: string, shouldAdd: boolean, subaccountAddress: string, account: string};

export type CreateApiSubaccountsApprovalPrepareArgs = {body: ApprovalPrepareRequest};

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

export const recordStringAny = z.record(z.string(), z.unknown());

export const recordStringNameStringTypeStringArray = z.record(z.string(), z.array(z.object({type: z.string(), name: z.string()})));

export const approvalPrepareResponse = z.object({nonce: z.string(), relayRouterAddress: z.string(), primaryType: z.string(), message: recordStringAny, types: recordStringNameStringTypeStringArray, domain: z.object({verifyingContract: z.string(), chainId: z.number(), version: z.string(), name: z.string()})});

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
};

/**
 * POST /subaccounts/approval/prepare
 */
export const createApiSubaccountsApprovalPrepare = async (args: CreateApiSubaccountsApprovalPrepareArgs, options?: CreateApiSubaccountsApprovalPrepareOptions) => {
const {baseUrl = "https://arbitrum.gmxapi.io/v1", fetch: fetchFn = fetch} = options ?? {}

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

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