import {z} from 'zod'

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

export const usageInfo = z.object({devices: z.number().int().optional(), maxDevices: z.number().int().optional(), assets: z.number().int().optional(), maxAssets: z.number().int().optional(), customers: z.number().int().optional(), maxCustomers: z.number().int().optional(), users: z.number().int().optional(), maxUsers: z.number().int().optional(), dashboards: z.number().int().optional(), maxDashboards: z.number().int().optional(), edges: z.number().int().optional(), maxEdges: z.number().int().optional(), transportMessages: z.number().int().optional(), maxTransportMessages: z.number().int().optional(), jsExecutions: z.number().int().optional(), tbelExecutions: z.number().int().optional(), maxJsExecutions: z.number().int().optional(), maxTbelExecutions: z.number().int().optional(), emails: z.number().int().optional(), maxEmails: z.number().int().optional(), sms: z.number().int().optional(), maxSms: z.number().int().optional(), smsEnabled: z.boolean().optional(), alarms: z.number().int().optional(), maxAlarms: z.number().int().optional()});

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 /api/usage
 */
export const getApiApiUsage = async (options?: GetApiApiUsageOptions) => {
const {baseUrl = "https://demo.thingsboard.io", fetch: fetchFn = fetch} = options ?? {}

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

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