import {z} from 'zod'

export type GetApiApiV2ExperimentsExperimentIdDiagnosticsArgs = {experiment_id: string};

export type GetApiApiV2ExperimentsExperimentIdDiagnosticsOptions = {baseUrl?: string | undefined, apiKeyAuth?: string | undefined, appKeyAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const experimentsExperimentDiagnosticsV2DTODataAttributesDiagnosticsItemsSkippedReason = z.enum(["NO_ASSIGNMENTS", "NO_DIMENSIONAL_DATA", "NO_METRIC_DATA", "ZERO_VARIANCE"]).nullable();

export const experimentsExperimentDiagnosticsV2DTODataAttributesDiagnosticsItemsStatus = z.enum(["PASS", "FAIL", "WARN", "ERROR", "SKIPPED"]);

export const experimentsExperimentDiagnosticsV2DTODataAttributesDiagnosticsItemsType = z.enum(["EXPERIMENT_HAS_ASSIGNMENTS", "METRIC_HAS_DATA", "ASSIGNMENT_IMBALANCE", "METRIC_WINSORIZE_ZERO", "PRE_EXPERIMENT_IMBALANCE", "MIXED_ASSIGNMENTS", "DIMENSIONAL_ASSIGNMENT_IMBALANCE", "FLAG_HAS_EVALUATIONS", "IMPLAUSIBLE_PRIOR", "DIMENSIONAL_DEGRADATION", "PIPELINE_STATUS", "MAPPED_ANALYSIS_CONFIGURATION", "MAPPED_ANALYSIS_COVERAGE", "MAPPED_ANALYSIS_COLLISIONS", "MAPPED_ANALYSIS_FANOUT", "MAPPED_ANALYSIS_CHANGE"]);

export const experimentsExperimentDiagnosticsV2DTODataAttributesDiagnosticsItems = z.object({message: z.string().nullable().optional(), metric_id: z.string().nullable().optional(), skipped_reason: experimentsExperimentDiagnosticsV2DTODataAttributesDiagnosticsItemsSkippedReason.optional(), status: experimentsExperimentDiagnosticsV2DTODataAttributesDiagnosticsItemsStatus, title: z.string(), type: experimentsExperimentDiagnosticsV2DTODataAttributesDiagnosticsItemsType});

export const experimentsExperimentDiagnosticsV2DTODataAttributesResult = z.enum(["PASS", "FAIL", "WARN", "NO_DATA"]).nullable();

export const experimentsExperimentDiagnosticsV2DTODataAttributesState = z.enum(["NOT_STARTED", "RUNNING", "COMPLETED", "FAILED"]);

export const experimentsExperimentDiagnosticsV2DTODataAttributes = z.object({diagnostics: z.array(experimentsExperimentDiagnosticsV2DTODataAttributesDiagnosticsItems), evaluated_at: z.string().nullable().optional(), result: experimentsExperimentDiagnosticsV2DTODataAttributesResult.optional(), state: experimentsExperimentDiagnosticsV2DTODataAttributesState});

export const experimentsExperimentDiagnosticsV2DTODataType = z.literal("experiment-diagnostics");

export const experimentsExperimentDiagnosticsV2DTOData = z.object({attributes: experimentsExperimentDiagnosticsV2DTODataAttributes.optional(), id: z.string(), type: experimentsExperimentDiagnosticsV2DTODataType});

export const experimentsExperimentDiagnosticsV2DTO = z.object({data: experimentsExperimentDiagnosticsV2DTOData});

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 experiment diagnostics
 * 
 * GET /api/v2/experiments/{experiment_id}/diagnostics
 * 
 * Also accepts auth: AuthZ
 */
export const getApiApiV2ExperimentsExperimentIdDiagnostics = async (args: GetApiApiV2ExperimentsExperimentIdDiagnosticsArgs, options?: GetApiApiV2ExperimentsExperimentIdDiagnosticsOptions) => {
const {baseUrl = "https://api.datadoghq.com", fetch: fetchFn = fetch, apiKeyAuth, appKeyAuth} = options ?? {}

const query = new URLSearchParams()
const headers = new Headers()
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/experiments/${encodeURIComponent(String(args.experiment_id))}/diagnostics${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(experimentsExperimentDiagnosticsV2DTO, await res.json())
};