import {z} from 'zod'

export type GetApiApiAccountsArgs = {type?: ('depository' | 'credit' | 'loan') | undefined};

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

export const bankAccountListItem = z.object({id: z.string(), mask: z.string().nullable(), name: z.string(), source: z.enum(["plaid", "snaptrade", "manual"]), subtype: z.string().nullable(), type: z.string(), plaidItemId: z.string().nullable(), currency: z.string().nullable(), current: z.number().nullable(), updatedAt: z.string().nullable(), userOverrideCreditLimit: z.number().nullable(), institutionName: z.string().nullable(), newAccountsAvailable: z.boolean(), logo: z.string().nullable(), url: z.string().nullable(), canAddInvestments: z.boolean(), creditLimit: z.number().nullable(), hasInvestments: z.boolean(), hasLiabilities: z.boolean(), needsReauth: z.boolean(), pendingDisconnectAt: z.string().nullable()});

export const bankAccountsResponse = z.object({accounts: z.array(bankAccountListItem)});

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
};

/**
 * List bank accounts
 * 
 * GET /api/accounts
 */
export const getApiApiAccounts = async (args: GetApiApiAccountsArgs, options: GetApiApiAccountsOptions) => {
const {baseUrl, fetch: fetchFn = fetch} = options ?? {}

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

if (args.type != null) query.append("type", String(args.type))

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