import {z} from 'zod'

export type LinkSignerDtoData = {category?: ('TRADE_SESSION' | 'API') | undefined, name?: string | undefined, nonce: string, sender: unknown, signedAt: number, signer: unknown, subaccount: unknown, subaccountId: string};

export type LinkSignerDto = {data: LinkSignerDtoData, signature: unknown, signerSignature: unknown};

export type CreateApiV1LinkedSignerLinkArgs = {body: LinkSignerDto};

export type CreateApiV1LinkedSignerLinkOptions = {baseUrl?: string | undefined, fetch?: typeof fetch | undefined};

export const signerDto = z.object({blockNumber: z.string().optional(), category: z.enum(["TRADE_SESSION", "API"]).optional(), createdAt: z.number().int(), expiresAt: z.number().int(), id: z.string(), linkedAt: z.number().int().optional(), name: z.string().optional(), revokedAt: z.number().int().optional(), revokedBlockNumber: z.string().optional(), signer: z.string(), status: z.enum(["PENDING", "ACTIVE", "PENDING_REVOKE", "REVOKED", "REJECTED"])});

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
};

/**
 * Links a signer address with the sender address for order delegation
 * 
 * POST /v1/linked-signer/link
 */
export const createApiV1LinkedSignerLink = async (args: CreateApiV1LinkedSignerLinkArgs, options?: CreateApiV1LinkedSignerLinkOptions) => {
const {baseUrl = "https://api.ethereal.trade", 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 = `${baseUrl.replace(/\/+$/, '')}/v1/linked-signer/link${query.size > 0 ? `?${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(signerDto, await res.json())
};