import {z} from 'zod'

export type GetApiOperationsArgs = {limit?: number | undefined, offset?: number | undefined, status?: ('PENDING' | 'EXECUTING' | 'SUCCESS' | 'FAILED' | 'CANCELLED' | 'ASSIGNED') | undefined, kind?: ('image_import' | 'instance') | undefined, since?: string | undefined, until?: string | undefined};

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

export const uUIDSchema = z.string();

export const operationSummary = z.object({uuid: uUIDSchema.optional(), kind: z.enum(["image_import", "instance"]).optional(), status: z.enum(["PENDING", "ASSIGNED", "EXECUTING", "SUCCESS", "FAILED", "CANCELLED"]).optional(), error: z.string().nullable().optional(), created_at: z.string().optional(), duration: z.number().nullable().optional(), image_size: z.number().int().nullable().optional(), consumed_cpu: z.number().nullable().optional(), consumed_memory: z.number().int().nullable().optional(), image_uuid: uUIDSchema.nullable().optional(), result_image_uuid: uUIDSchema.nullable().optional()});

export const getApiOperationsResponse = z.array(operationSummary);

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 operations
 * 
 * GET /operations
 */
export const getApiOperations = async (args: GetApiOperationsArgs, options?: GetApiOperationsOptions) => {
const {baseUrl = "https://api.tokenfactory.nebius.com", fetch: fetchFn = fetch} = options ?? {}

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

if (args.limit != null) query.append("limit", String(args.limit))
if (args.offset != null) query.append("offset", String(args.offset))
if (args.status != null) query.append("status", String(args.status))
if (args.kind != null) query.append("kind", String(args.kind))
if (args.since != null) query.append("since", String(args.since))
if (args.until != null) query.append("until", String(args.until))

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