import {z} from 'zod'

export type GetApiV1AnalyticsBucketsHealthArgs = {hours?: number | undefined};

export type GetApiV1AnalyticsBucketsHealthOptions = {baseUrl?: string | undefined, BearerAuth?: string | undefined, NamespaceHeader?: string | undefined, fetch?: typeof fetch | undefined};

export const apiAnalyticsBucketsModelsTimeRange = z.object({start: z.string(), end: z.string()});

export const errorBreakdown = z.object({error_type: z.string(), count: z.number().int(), percentage: z.number(), first_seen: z.string(), last_seen: z.string()});

export const syncHealthMetric = z.object({sync_config_id: z.string(), consecutive_failures: z.number().int(), last_success_at: z.string().nullable().optional(), last_failure_at: z.string().nullable().optional(), failure_rate: z.number()});

export const bucketHealthResponse = z.object({bucket_id: z.string(), time_range: apiAnalyticsBucketsModelsTimeRange, overall_health: z.string(), total_errors: z.number().int(), error_breakdown: z.array(errorBreakdown), sync_health: z.array(syncHealthMetric), stuck_syncs: z.array(z.string())});

export const namespaceBucketsHealthResponse = z.object({time_range: apiAnalyticsBucketsModelsTimeRange, buckets: z.array(bucketHealthResponse)});

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 Namespace Buckets Health
 * 
 * GET /v1/analytics/buckets/health
 */
export const getApiV1AnalyticsBucketsHealth = async (args: GetApiV1AnalyticsBucketsHealthArgs, options?: GetApiV1AnalyticsBucketsHealthOptions) => {
const {baseUrl = "https://api.mixpeek.com", fetch: fetchFn = fetch, BearerAuth, NamespaceHeader} = options ?? {}

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

if (args.hours != null) query.append("hours", String(args.hours))
if (BearerAuth !== undefined) headers.set('authorization', `Bearer ${BearerAuth}`)
if (NamespaceHeader !== undefined) headers.set("X-Namespace", NamespaceHeader)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/analytics/buckets/health${query.size > 0 ? `?${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(namespaceBucketsHealthResponse, await res.json())
};