import {z} from 'zod'

export type GetApiApiV1UsersUserIdLinkedAccountsArgs = {userId: string, 'Client-ID': string, Authorization: string};

export type GetApiApiV1UsersUserIdLinkedAccountsOptions = {baseUrl?: string | undefined, fetch?: typeof fetch | undefined};

export const getLinkedAccountsResponse = z.object({data: z.array(z.object({id: z.string(), type: z.literal("LinkedAccount"), attributes: z.object({provider: z.enum(["Meld", "Plaid", "Checkout"]).optional(), status: z.enum(["Connected", "Disconnected", "Pending"]).optional(), accountType: z.enum(["checking", "savings", "debit", "creditCard", "fundingCreditCard", "pending"]).optional(), accountName: z.string().optional(), accountMask: z.string().optional(), institutionName: z.string().optional(), institutionId: z.string().optional(), updatedAt: z.string(), createdAt: 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
};

/**
 * Get Linked Accounts for User
 * 
 * GET /api/v1/users/:userId/linked-accounts
 */
export const getApiApiV1UsersUserIdLinkedAccounts = async (args: GetApiApiV1UsersUserIdLinkedAccountsArgs, options?: GetApiApiV1UsersUserIdLinkedAccountsOptions) => {
const {baseUrl = "https://merchant-api.accruesavings.com", fetch: fetchFn = fetch} = options ?? {}

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

if (args['Client-ID'] != null) headers.set("Client-ID", String(args['Client-ID']))
if (args.Authorization != null) headers.set("Authorization", String(args.Authorization))

const url = `${baseUrl.replace(/\/+$/, '')}/api/v1/users/:userId/linked-accounts${query.size > 0 ? `?${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(getLinkedAccountsResponse, await res.json())
};