import {z} from 'zod'

export type GetApiRecommendationsEventOrchestrationsRulesArgs = {Accept: string, 'Content-Type': 'application/json', service_id?: string | undefined, 'service_ids[]'?: Array<string> | undefined, 'team_ids[]'?: Array<string> | undefined, 'actions[]'?: (Array<'suppress' | 'severity' | 'priority'>) | undefined, limit?: number | undefined, cursor?: string | undefined};

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

export const recommendedRule = z.object({recommendation_id: z.string().optional(), type: z.literal("service").optional(), status: z.literal("available").optional(), description: z.string().optional(), pcl_expr: z.string().optional(), created_at: z.string().optional(), updated_at: z.string().optional(), metrics: z.object({num_events_matching_rule: z.number().int().optional(), num_events_with_action: z.number().int().optional(), num_events_with_action_matching_rule: z.number().int().optional(), precision_metric: z.number().gte(0).lte(1).optional(), recall: z.number().gte(0).lte(1).optional()}).optional(), actions: z.object({suppress: z.boolean().optional(), severity: z.enum(["critical", "high", "warning", "info", "low"]).optional(), priority: z.string().optional()}).optional(), parent: z.object({id: z.string().optional(), type: z.literal("service_reference").optional()}).optional()});

export const getApiRecommendationsEventOrchestrationsRulesResponse = z.object({recommended_rules: z.array(recommendedRule).optional(), next_cursor: z.string().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
};

/**
 * List recommended rules
 * 
 * GET /recommendations/event_orchestrations/rules
 */
export const getApiRecommendationsEventOrchestrationsRules = async (args: GetApiRecommendationsEventOrchestrationsRulesArgs, options?: GetApiRecommendationsEventOrchestrationsRulesOptions) => {
const {baseUrl = "https://api.pagerduty.com", fetch: fetchFn = fetch, apiKey} = options ?? {}

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

if (args.Accept != null) headers.set("Accept", String(args.Accept))
if (args['Content-Type'] != null) headers.set("Content-Type", String(args['Content-Type']))
if (args.service_id != null) query.append("service_id", String(args.service_id))
for (const item of args['service_ids[]'] ?? []) query.append("service_ids[]", String(item))
for (const item of args['team_ids[]'] ?? []) query.append("team_ids[]", String(item))
for (const item of args['actions[]'] ?? []) query.append("actions[]", String(item))
if (args.limit != null) query.append("limit", String(args.limit))
if (args.cursor != null) query.append("cursor", String(args.cursor))
if (apiKey !== undefined) headers.set("Authorization", apiKey)

const url = `${baseUrl.replace(/\/+$/, '')}/recommendations/event_orchestrations/rules${query.size > 0 ? `?${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(getApiRecommendationsEventOrchestrationsRulesResponse, await res.json())
};