import {z} from 'zod'

export type RUMOperationJourneyCompositeRuleKind = 'all_of' | 'in_order';

export type RUMOperationJourneyPredicate = {query: string};

export type RUMOperationJourneyCompositeRule = {composite_rule_id?: string | undefined, config_version?: string | undefined, kind: RUMOperationJourneyCompositeRuleKind, max_window_ms?: number | undefined, predicates: Array<RUMOperationJourneyPredicate>};

export type RUMOperationJourneyNode = {id?: string | undefined, query: string};

export type RUMOperationJourneyStepType = 'start' | 'update' | 'stop' | 'error' | 'abandoned';

export type RUMOperationJourneyStep = {composite?: RUMOperationJourneyCompositeRule | undefined, nodes?: Array<RUMOperationJourneyNode> | undefined, type: RUMOperationJourneyStepType};

export type RUMOperationJourneyRum = {rum_steps: Array<RUMOperationJourneyStep>};

export type RUMOperationRequestAttributes = {application_id?: string | undefined, category?: (string | null) | undefined, description?: (string | null) | undefined, display_name?: string | undefined, feature_ids?: Array<string> | undefined, journey_rum: RUMOperationJourneyRum, name: string, tags: Array<string>};

export type RUMOperationType = 'operations';

export type RUMOperationCreateRequestData = {attributes: RUMOperationRequestAttributes, type: RUMOperationType};

export type RUMOperationCreateRequest = {data: RUMOperationCreateRequestData};

export type CreateApiApiV2RumOperationsArgs = {body: RUMOperationCreateRequest};

export type CreateApiApiV2RumOperationsOptions = {baseUrl?: string | undefined, apiKeyAuth?: string | undefined, appKeyAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const rUMOperationUser = z.object({email: z.string().optional(), handle: z.string().optional(), name: z.string().optional(), uuid: z.string().optional()});

export const rUMOperationJourneyCompositeRuleKind = z.enum(["all_of", "in_order"]);

export const rUMOperationJourneyPredicate = z.object({query: z.string()});

export const rUMOperationJourneyCompositeRule = z.object({composite_rule_id: z.string().optional(), config_version: z.string().optional(), kind: rUMOperationJourneyCompositeRuleKind, max_window_ms: z.number().int().optional(), predicates: z.array(rUMOperationJourneyPredicate)});

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

export const rUMOperationJourneyStepType = z.enum(["start", "update", "stop", "error", "abandoned"]);

export const rUMOperationJourneyStep = z.object({composite: rUMOperationJourneyCompositeRule.optional(), nodes: z.array(rUMOperationJourneyNode).optional(), type: rUMOperationJourneyStepType});

export const rUMOperationJourneyRum = z.object({rum_steps: z.array(rUMOperationJourneyStep)});

export const rUMOperationResponseAttributes = z.object({application_id: z.string().nullable().optional(), category: z.string().nullable().optional(), created_at: z.string().optional(), created_by: rUMOperationUser.optional(), description: z.string().nullable().optional(), display_name: z.string().optional(), feature_ids: z.array(z.string()).optional(), journey_rum: rUMOperationJourneyRum, name: z.string(), org_id: z.number().int().optional(), tags: z.array(z.string()), updated_at: z.string().nullable().optional(), updated_by: rUMOperationUser.optional()});

export const rUMOperationType = z.literal("operations");

export const rUMOperationResponseData = z.object({attributes: rUMOperationResponseAttributes, id: z.string(), type: rUMOperationType});

export const rUMOperationResponse = z.object({data: rUMOperationResponseData});

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 RUM operation
 * 
 * POST /api/v2/rum/operations
 * 
 * Also accepts auth: AuthZ
 */
export const createApiApiV2RumOperations = async (args: CreateApiApiV2RumOperationsArgs, options?: CreateApiApiV2RumOperationsOptions) => {
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/operations${query.size > 0 ? `?${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(rUMOperationResponse, await res.json())
};