import {z} from 'zod'

export type GetApiV1DefaultBanksBankIdLlmRequestsStatsArgs = {bank_id: string, operation?: (string | null) | undefined, call_type?: ('llm' | 'embedding' | 'rerank' | 'decision' | null) | undefined, period?: string | undefined, split_by?: ('model' | 'operation' | null) | undefined, authorization?: (string | null) | undefined};

export type GetApiV1DefaultBanksBankIdLlmRequestsStatsOptions = {baseUrl: string, fetch?: typeof fetch | undefined};

export const lLMRequestTokenSums = z.object({input: z.number().int(), output: z.number().int(), cached: z.number().int(), thoughts: z.number().int().nullable().optional(), total: z.number().int()});

export const lLMRequestSeriesSums = z.object({calls: z.number().int(), tokens: z.number().int()});

export const lLMRequestStatsBucket = z.object({time: z.string(), statuses: z.record(z.string(), z.number().int()), total: z.number().int(), tokens: lLMRequestTokenSums, series: z.record(z.string(), lLMRequestSeriesSums).nullable().optional()});

export const lLMRequestStatsResponse = z.object({bank_id: z.string(), period: z.string(), trunc: z.string(), start: z.string(), buckets: z.array(lLMRequestStatsBucket), retention_days: z.number().int().nullable().optional()});

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
};

/**
 * LLM request statistics
 * 
 * GET /v1/default/banks/{bank_id}/llm-requests/stats
 */
export const getApiV1DefaultBanksBankIdLlmRequestsStats = async (args: GetApiV1DefaultBanksBankIdLlmRequestsStatsArgs, options: GetApiV1DefaultBanksBankIdLlmRequestsStatsOptions) => {
const {baseUrl, fetch: fetchFn = fetch} = options ?? {}

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

if (args.operation != null) query.append("operation", String(args.operation))
if (args.call_type != null) query.append("call_type", String(args.call_type))
if (args.period != null) query.append("period", String(args.period))
if (args.split_by != null) query.append("split_by", String(args.split_by))
if (args.authorization != null) headers.set("authorization", String(args.authorization))

const url = `${baseUrl.replace(/\/+$/, '')}/v1/default/banks/${encodeURIComponent(String(args.bank_id))}/llm-requests/stats${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(lLMRequestStatsResponse, await res.json())
};