import {z} from 'zod'

export type GetApiApiV2OrgIdAlertsIncidentsStatsArgs = {org_id: string};

export type GetApiApiV2OrgIdAlertsIncidentsStatsOptions = {baseUrl: string, Authorization?: string | undefined, fetch?: typeof fetch | undefined};

export const incidentStats = z.object({acknowledged_incidents: z.number().int(), alerts_per_incident_avg: z.number(), by_service: z.record(z.string(), z.number().int()), by_severity: z.record(z.string(), z.number().int()), mttr_minutes: z.number().nullable().optional(), open_incidents: z.number().int(), resolved_incidents: z.number().int(), total_incidents: z.number().int()});

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 incident statistics
 * 
 * GET /api/v2/{org_id}/alerts/incidents/stats
 */
export const getApiApiV2OrgIdAlertsIncidentsStats = async (args: GetApiApiV2OrgIdAlertsIncidentsStatsArgs, options: GetApiApiV2OrgIdAlertsIncidentsStatsOptions) => {
const {baseUrl, fetch: fetchFn = fetch, Authorization} = options ?? {}

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

if (Authorization !== undefined) headers.set("Authorization", Authorization)

const url = `${baseUrl.replace(/\/+$/, '')}/api/v2/${encodeURIComponent(String(args.org_id))}/alerts/incidents/stats${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(incidentStats, await res.json())
};