import {z} from 'zod'

export type RumRecoverySessionsRequestType = 'sessions';

export type RumRecoverySessionInput = {application_id: string, session_id: string};

export type RumRecoverySessionsCreateAttributes = {request_type?: RumRecoverySessionsRequestType | undefined, sessions: Array<RumRecoverySessionInput>};

export type RumRecoveryBatchRequestType = 'batch';

export type RumRecoveryBatchCreateAttributes = {estimated_count?: number | undefined, from: number, query: string, request_type: RumRecoveryBatchRequestType, to: number};

export type RumRecoveryCreateAttributes = RumRecoverySessionsCreateAttributes | RumRecoveryBatchCreateAttributes;

export type RumRecoveryCreateData = {attributes: RumRecoveryCreateAttributes, type?: string | undefined};

export type RumRecoveryCreateRequest = {data: RumRecoveryCreateData};

export type CreateApiApiV2RumRecoverRequestsArgs = {body: RumRecoveryCreateRequest};

export type CreateApiApiV2RumRecoverRequestsOptions = {baseUrl?: string | undefined, apiKeyAuth?: string | undefined, appKeyAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const rumRecoveryDiscoveryStatus = z.enum(["QUEUED", "PENDING", "SLICING", "DISCOVERED", "PROCESSING", "COMPLETED", "FAILED", "CANCELLED"]);

export const rumRecoveryRequestStatus = z.enum(["PENDING", "PROCESSING", "COMPLETED", "FAILED", "CANCELLED", "EXPIRED"]);

export const rumRecoveryCreateResponseAttributes = z.object({created_at: z.string(), discovery_status: rumRecoveryDiscoveryStatus.optional(), estimated_count: z.number().int().gte(0).optional(), failed_sessions: z.number().int().gte(0), processed_sessions: z.number().int().gte(0), status: rumRecoveryRequestStatus, total_sessions: z.number().int().gte(0).optional()});

export const rumRecoveryRequestType = z.literal("rum_recovery_request");

export const rumRecoveryCreateResponseData = z.object({attributes: rumRecoveryCreateResponseAttributes, id: z.string(), type: rumRecoveryRequestType});

export const rumRecoveryCreateResponse = z.object({data: rumRecoveryCreateResponseData});

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
};

/**
 * Create a recovery request
 * 
 * POST /api/v2/rum/recover/requests
 */
export const createApiApiV2RumRecoverRequests = async (args: CreateApiApiV2RumRecoverRequestsArgs, options?: CreateApiApiV2RumRecoverRequestsOptions) => {
const {baseUrl = "https://api.datadoghq.com", fetch: fetchFn = fetch, apiKeyAuth, appKeyAuth} = options ?? {}

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

if (apiKeyAuth !== undefined) headers.set("DD-API-KEY", apiKeyAuth)
if (appKeyAuth !== undefined) headers.set("DD-APPLICATION-KEY", appKeyAuth)

const url = `${baseUrl.replace(/\/+$/, '')}/api/v2/rum/recover/requests${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "POST", headers, body: JSON.stringify(args.body)})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(rumRecoveryCreateResponse, await res.json())
};