import {z} from 'zod'

export type GetApiV1BillingActiveOptions = {baseUrl?: string | undefined, apiKey?: string | undefined, fetch?: typeof fetch | undefined};

export const billingActiveItem = z.object({machine_id: z.string(), display_name: z.string(), status: z.enum(["running", "starting", "stopping", "restarting", "stopped", "suspended"]), os_type: z.enum(["linux", "windows"]), rate_cents_per_hour: z.number().int(), running_credits_per_hour: z.number().int(), stopped_credits_per_hour: z.number().int(), accrued_cents: z.number().int(), since: z.string().nullable().optional(), total_credits_billed: z.number().int(), suspended_for_billing: z.boolean(), auto_destroy_at: z.string().nullable().optional(), ttl_minutes: z.number().int().nullable().optional()});

export const billingActiveResponse = z.object({active: z.array(billingActiveItem), current_run_rate_cents_per_hour: z.number().int(), request_id: 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
};

/**
 * What is billing me right now
 * 
 * GET /v1/billing/active
 * 
 * Also accepts auth: bearerAuth
 */
export const getApiV1BillingActive = async (options?: GetApiV1BillingActiveOptions) => {
const {baseUrl = "https://coasty.ai", fetch: fetchFn = fetch, apiKey} = options ?? {}

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

if (apiKey !== undefined) headers.set("X-API-Key", apiKey)

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