import {z} from 'zod'

export type GetApiV1AnalyticsModelRouterErrorRateArgs = {provider?: (string | null) | undefined, served_model?: (string | null) | undefined, operation?: (string | null) | undefined, start_date: string, end_date: string};

export type GetApiV1AnalyticsModelRouterErrorRateOptions = {baseUrl: string, APIKeyHeader?: string | undefined, fetch?: typeof fetch | undefined};

export const errorRateRow = z.object({organization_id: z.string(), terminal_failures: z.number().int(), terminal_total: z.number().int(), error_rate: z.number()});

export const getApiV1AnalyticsModelRouterErrorRateResponse = z.array(errorRateRow);

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
};

/**
 * Terminal error rate over a window
 * 
 * GET /v1/analytics/model-router/error/rate
 */
export const getApiV1AnalyticsModelRouterErrorRate = async (args: GetApiV1AnalyticsModelRouterErrorRateArgs, options: GetApiV1AnalyticsModelRouterErrorRateOptions) => {
const {baseUrl, fetch: fetchFn = fetch, APIKeyHeader} = options ?? {}

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

if (args.provider != null) query.append("provider", String(args.provider))
if (args.served_model != null) query.append("served_model", String(args.served_model))
if (args.operation != null) query.append("operation", String(args.operation))
if (args.start_date != null) query.append("start_date", String(args.start_date))
if (args.end_date != null) query.append("end_date", String(args.end_date))
if (APIKeyHeader !== undefined) headers.set("x-api-key", APIKeyHeader)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/analytics/model-router/error/rate${query.size > 0 ? `?${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(getApiV1AnalyticsModelRouterErrorRateResponse, await res.json())
};