import {z} from 'zod'

export type GetApiV3AccountingIntegrationsArgs = {cursor?: string | undefined, limit?: number | undefined, status?: ('ACTIVE' | 'DISABLED') | undefined, vendor?: ('CAMPFIRE' | 'CSV' | 'DUALENTRY' | 'HANOVER_PARK' | 'INKLE' | 'INTACCT' | 'MS365_BC' | 'MS365_FNO' | 'NETSUITE' | 'ORACLE_FUSION' | 'PUZZLE' | 'QBD' | 'QBO' | 'RILLET' | 'SAGE_INTACCT' | 'WORKDAY' | 'XERO') | undefined};

export type GetApiV3AccountingIntegrationsOptions = {baseUrl?: string | undefined, bearer?: string | undefined, fetch?: typeof fetch | undefined};

export const integration = z.object({created_at: z.string(), integration_id: z.string(), status: z.enum(["ACTIVE", "DISABLED"]), vendor: z.enum(["CAMPFIRE", "DUALENTRY", "HANOVER_PARK", "INKLE", "RILLET"]), vendor_account_id: z.string()});

export const integrationPaginatedResponse = z.object({items: z.array(integration), next_cursor: z.string().nullable()});

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 accounting integrations
 * 
 * GET /v3/accounting/integrations
 * 
 * Also accepts auth: oauth2
 */
export const getApiV3AccountingIntegrations = async (args: GetApiV3AccountingIntegrationsArgs, options?: GetApiV3AccountingIntegrationsOptions) => {
const {baseUrl = "https://api.brex.com", fetch: fetchFn = fetch, bearer} = options ?? {}

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

if (args.cursor != null) query.append("cursor", String(args.cursor))
if (args.limit != null) query.append("limit", String(args.limit))
if (args.status != null) query.append("status", String(args.status))
if (args.vendor != null) query.append("vendor", String(args.vendor))
if (bearer !== undefined) headers.set('authorization', `Bearer ${bearer}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v3/accounting/integrations${query.size > 0 ? `?${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(integrationPaginatedResponse, await res.json())
};