import {z} from 'zod'

export type HistogramRequestBody = {source_ids?: Array<string> | undefined, destination_ids?: Array<string> | undefined, transform_ids?: Array<string> | undefined} | {[key: string]: unknown};

export type CreateApiLogsHistogramArgs = {timestamp_from: string, timestamp_to?: (string | null) | undefined, bucket_count?: number | undefined, log_level?: (string | null) | undefined, query_string?: (string | null) | undefined, exclude_string?: (string | null) | undefined, use_regex?: boolean | undefined, exclude_regex?: boolean | undefined, include_noise?: boolean | undefined, body: HistogramRequestBody | null};

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

export const histogramBucket = z.object({timestamp_start: z.string(), timestamp_end: z.string(), error: z.number().int().optional(), warn: z.number().int().optional(), info: z.number().int().optional(), debug: z.number().int().optional(), total: z.number().int().optional()}).and(z.record(z.string(), z.unknown()));

export const totalsByLevel = z.object({error: z.number().int().optional(), warn: z.number().int().optional(), info: z.number().int().optional(), debug: z.number().int().optional()}).and(z.record(z.string(), z.unknown()));

export const histogramTimeRange = z.object({from: z.string(), to: z.string()}).and(z.record(z.string(), z.unknown()));

export const histogramResponse = z.object({buckets: z.array(histogramBucket).optional(), total_logs: z.number().int().optional(), totals_by_level: totalsByLevel.nullable().optional(), time_range: histogramTimeRange}).and(z.record(z.string(), z.unknown()));

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 Logs Histogram
 * 
 * POST /logs/histogram
 */
export const createApiLogsHistogram = async (args: CreateApiLogsHistogramArgs, options?: CreateApiLogsHistogramOptions) => {
const {baseUrl = "https://api.streamkap.com", fetch: fetchFn = fetch, FronteggHTTPAuthentication} = options ?? {}

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

if (args.timestamp_from != null) query.append("timestamp_from", String(args.timestamp_from))
if (args.timestamp_to != null) query.append("timestamp_to", String(args.timestamp_to))
if (args.bucket_count != null) query.append("bucket_count", String(args.bucket_count))
if (args.log_level != null) query.append("log_level", String(args.log_level))
if (args.query_string != null) query.append("query_string", String(args.query_string))
if (args.exclude_string != null) query.append("exclude_string", String(args.exclude_string))
if (args.use_regex != null) query.append("use_regex", String(args.use_regex))
if (args.exclude_regex != null) query.append("exclude_regex", String(args.exclude_regex))
if (args.include_noise != null) query.append("include_noise", String(args.include_noise))
if (FronteggHTTPAuthentication !== undefined) headers.set('authorization', `Bearer ${FronteggHTTPAuthentication}`)

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