import {z} from 'zod'

export type IncidentPageRoleType = 'incident_user_defined_roles' | 'incident_reserved_roles';

export type IncidentPageRoleReference = {id: string, type: IncidentPageRoleType};

export type IncidentPageTargetType = 'team_handle' | 'team_uuid' | 'user_uuid';

export type IncidentPageTarget = {identifier: string, type: IncidentPageTargetType};

export type IncidentCreatePageFromIncidentDataAttributesRequest = {description?: string | undefined, incident_public_id?: string | undefined, role?: IncidentPageRoleReference | undefined, services?: Array<string> | undefined, tags?: Array<string> | undefined, target?: IncidentPageTarget | undefined, title?: string | undefined};

export type IncidentCreatePageFromIncidentType = 'page';

export type IncidentCreatePageFromIncidentDataRequest = {attributes: IncidentCreatePageFromIncidentDataAttributesRequest, type: IncidentCreatePageFromIncidentType};

export type IncidentCreatePageFromIncidentRequest = {data: IncidentCreatePageFromIncidentDataRequest};

export type CreateApiApiV2IncidentsIncidentIdCasesPageArgs = {incident_id: string, body: IncidentCreatePageFromIncidentRequest};

export type CreateApiApiV2IncidentsIncidentIdCasesPageOptions = {baseUrl?: string | undefined, apiKeyAuth?: string | undefined, appKeyAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const incidentPageUUIDType = z.literal("page_uuid");

export const incidentPageUUIDDataResponse = z.object({id: z.string(), type: incidentPageUUIDType});

export const incidentPageUUIDResponse = z.object({data: incidentPageUUIDDataResponse});

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
};

/**
 * Create a page from an incident
 * 
 * POST /api/v2/incidents/{incident_id}/cases/page
 * 
 * Also accepts auth: AuthZ
 */
export const createApiApiV2IncidentsIncidentIdCasesPage = async (args: CreateApiApiV2IncidentsIncidentIdCasesPageArgs, options?: CreateApiApiV2IncidentsIncidentIdCasesPageOptions) => {
const {baseUrl = "https://api.datadoghq.com", fetch: fetchFn = fetch, apiKeyAuth, appKeyAuth} = 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("DD-API-KEY", apiKeyAuth)
if (appKeyAuth !== undefined) headers.set("DD-APPLICATION-KEY", appKeyAuth)

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

const res = await fetchFn(url, {method: "POST", 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(incidentPageUUIDResponse, await res.json())
};