import {z} from 'zod'

export type ResolutionReason = 'intentional' | 'remediated' | 'self_resolved' | 'not_an_anomaly';

export type IncidentStatus = 'active' | 'investigating' | 'resolved';

export type UpdateIncidentStatusRequest = {resolution_reason?: (ResolutionReason | null) | undefined, resolution_reason_detail?: (string | null) | undefined, status: IncidentStatus};

export type PatchApiV2IncidentsIncidentIdArgs = {incidentId: string, body: UpdateIncidentStatusRequest};

export type PatchApiV2IncidentsIncidentIdOptions = {baseUrl?: string | undefined, APIKeyAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const resolutionReason = z.enum(["intentional", "remediated", "self_resolved", "not_an_anomaly"]);

export const incidentStatus = z.enum(["active", "investigating", "resolved"]);

export const incidentStatusUpdate = z.object({incident_id: z.string(), resolution_reason: resolutionReason.nullable(), resolution_reason_detail: z.string().nullable(), status: incidentStatus});

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
};

/**
 * Update incident
 * 
 * PATCH /v2/incidents/{incidentId}
 */
export const patchApiV2IncidentsIncidentId = async (args: PatchApiV2IncidentsIncidentIdArgs, options?: PatchApiV2IncidentsIncidentIdOptions) => {
const {baseUrl = "https://api.cloudzero.com", fetch: fetchFn = fetch, APIKeyAuth} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/v2/incidents/${encodeURIComponent(String(args.incidentId))}${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "PATCH", headers, body: JSON.stringify(args.body)})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(incidentStatusUpdate, await res.json())
};