import {z} from 'zod'

export type GetApiV1ServicesArgs = {Account: unknown};

export type GetApiV1ServicesOptions = {baseUrl: string, OAuth2?: string | undefined, fetch?: typeof fetch | undefined};

export const iDomainEvent = z.object({id: z.string().optional(), occurredOn: z.string().optional()});

export const subscription = z.object({id: z.string().optional(), domainEvents: z.array(iDomainEvent).nullable().optional(), createdOn: z.string().nullable().optional(), modifiedOn: z.string().nullable().optional(), tenantId: z.string().optional(), serviceId: z.string().optional(), startDate: z.string().nullable().optional(), endDate: z.string().nullable().optional(), ended: z.boolean().optional(), service: z.lazy(() => service.optional())});

export const service: z.ZodType<Service> = z.object({id: z.string().optional(), code: z.string().nullable().optional(), name: z.string().nullable().optional(), subscriptions: z.array(subscription).nullable().optional()});

export const getApiV1ServicesResponse = z.array(service);

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
};

/**
 * Services the current tenant currently subscribes to. Each returned service
 * carries only the tenant's own active subscriptions on its
 * `Subscriptions` navigation. This is the list to populate
 * pickers like the new-location services dropdown.
 * 
 * GET /v1/Services
 */
export const getApiV1Services = async (args: GetApiV1ServicesArgs, options: GetApiV1ServicesOptions) => {
const {baseUrl, fetch: fetchFn = fetch, OAuth2} = options ?? {}

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

if (args.Account != null) query.append("Account", String(args.Account))
if (OAuth2 !== undefined) headers.set('authorization', `Bearer ${OAuth2}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/Services${query.size > 0 ? `?${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(getApiV1ServicesResponse, await res.json())
};