import {z} from 'zod'

export type GetApiQstashStatsIdArgs = {id: string, period?: ('1h' | '3h' | '12h' | '1d' | '3d' | '7d' | '30d') | undefined};

export type GetApiQstashStatsIdOptions = {baseUrl?: string | undefined, basicAuth?: {username: string, password: string} | undefined, fetch?: typeof fetch | undefined};

export const timeSeriesData = z.object({x: z.string(), y: z.number()});

export const timeSeriesWithId = z.object({id: z.string().optional(), data_points: z.array(timeSeriesData).optional()});

export const qStashStats = z.object({days: z.array(z.string()).optional(), daily_requests: z.array(z.object({x: z.string().optional(), y: z.number().optional(), workflow_message: z.number().int().optional(), workflow_run: z.number().int().optional()})).optional(), daily_billings: z.array(timeSeriesData).optional(), daily_bandwidths: z.array(timeSeriesData).optional(), daily_used: z.array(timeSeriesData).optional(), daily_used_workflow: z.array(timeSeriesData).optional(), daily_qstash_messages: z.array(timeSeriesWithId).optional(), daily_workflow_messages: z.array(timeSeriesWithId).optional(), dlq_message_count: z.number().int().optional(), daily_bandwidth_used: z.array(timeSeriesData).optional(), total_monthly_billing: z.number().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
};

/**
 * Get QStash Stats
 * 
 * GET /qstash/stats/{id}
 */
export const getApiQstashStatsId = async (args: GetApiQstashStatsIdArgs, options?: GetApiQstashStatsIdOptions) => {
const {baseUrl = "https://api.upstash.com/v2", fetch: fetchFn = fetch, basicAuth} = options ?? {}

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

if (args.period != null) query.append("period", String(args.period))
if (basicAuth !== undefined) headers.set('authorization', `Basic ${btoa(`${basicAuth.username}:${basicAuth.password}`)}`)

const url = `${baseUrl.replace(/\/+$/, '')}/qstash/stats/${encodeURIComponent(String(args.id))}${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(qStashStats, await res.json())
};