import {z} from 'zod'

export type GetApiV1WorkflowsWorkflowNameMetricsArgs = {workflow_name: string, start_time?: (string | null) | undefined, end_time?: (string | null) | undefined};

export type GetApiV1WorkflowsWorkflowNameMetricsOptions = {baseUrl?: string | undefined, ApiKey?: string | undefined, fetch?: typeof fetch | undefined};

export const scalarMetric = z.object({value: z.union([z.number().int(), z.number()])});

export const timeSeriesMetric = z.object({value: z.array(z.array(z.unknown()))});

export const workflowMetrics = z.object({execution_count: scalarMetric, success_count: scalarMetric, error_count: scalarMetric, average_latency_ms: scalarMetric, latency_over_time: timeSeriesMetric, retry_rate: scalarMetric});

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 Workflow Metrics
 * 
 * GET /v1/workflows/{workflow_name}/metrics
 */
export const getApiV1WorkflowsWorkflowNameMetrics = async (args: GetApiV1WorkflowsWorkflowNameMetricsArgs, options?: GetApiV1WorkflowsWorkflowNameMetricsOptions) => {
const {baseUrl = "https://api.mistral.ai", fetch: fetchFn = fetch, ApiKey} = options ?? {}

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

if (args.start_time != null) query.append("start_time", String(args.start_time))
if (args.end_time != null) query.append("end_time", String(args.end_time))
if (ApiKey !== undefined) headers.set('authorization', `Bearer ${ApiKey}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/workflows/${encodeURIComponent(String(args.workflow_name))}/metrics${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(workflowMetrics, await res.json())
};