import {z} from 'zod'

export type PagerdutyRegion = 'us' | 'eu';

export type GetApiV1IntegrationsPagerdutyServicesPagerdutyServiceIdArgs = {pagerduty_service_id: string, account_subdomain: string, region?: PagerdutyRegion | undefined};

export type GetApiV1IntegrationsPagerdutyServicesPagerdutyServiceIdOptions = {baseUrl: string, OAuth2AuthorizationCodeBearer?: string | undefined, fetch?: typeof fetch | undefined};

export const pagerDutyServiceView = z.object({install_id: z.string(), service_id: z.string(), pagerduty_service_id: z.string(), service_name: z.string()});

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
};

/**
 * Resolve PagerDuty service
 * 
 * GET /v1/integrations/pagerduty/services/{pagerduty_service_id}/
 */
export const getApiV1IntegrationsPagerdutyServicesPagerdutyServiceId = async (args: GetApiV1IntegrationsPagerdutyServicesPagerdutyServiceIdArgs, options: GetApiV1IntegrationsPagerdutyServicesPagerdutyServiceIdOptions) => {
const {baseUrl, fetch: fetchFn = fetch, OAuth2AuthorizationCodeBearer} = options ?? {}

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

if (args.account_subdomain != null) query.append("account_subdomain", String(args.account_subdomain))
if (args.region != null) query.append("region", String(args.region))
if (OAuth2AuthorizationCodeBearer !== undefined) headers.set('authorization', `Bearer ${OAuth2AuthorizationCodeBearer}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/integrations/pagerduty/services/${encodeURIComponent(String(args.pagerduty_service_id))}/${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(pagerDutyServiceView, await res.json())
};