import {z} from 'zod'

export type GetApiV2RelatedItemsOptions = {baseUrl: string, oauth2?: string | undefined, fetch?: typeof fetch | undefined};

export const getApiV2RelatedItemsResponse = z.array(z.object({id: z.number().int().optional(), type: z.enum(["VALUE", "ENTITY"]).optional(), entity: z.object({}).optional(), entityId: z.number().int().optional(), entityType: z.enum(["ORGANIZATION", "DOCUMENT", "LOCATION", "NODE", "CHECKLIST", "KB_DOCUMENT", "END_USER", "SOFTWARE_LICENSE"]).optional(), relEntity: z.object({}).optional(), relEntityId: z.number().int().optional(), relEntityType: z.enum(["ORGANIZATION", "DOCUMENT", "LOCATION", "NODE", "ATTACHMENT", "TECHNICIAN", "CREDENTIAL", "CHECKLIST", "END_USER", "CONTACT", "KB_DOCUMENT", "SOFTWARE_LICENSE", "SECURE"]).optional(), value: z.object({}).optional(), createTime: z.number().optional(), updateTime: z.number().optional(), createdByAppUserId: z.number().int().optional(), updatedByAppUserId: z.number().int().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 all related items
 * 
 * GET /v2/related-items
 * 
 * Also accepts auth: sessionKey
 */
export const getApiV2RelatedItems = async (options: GetApiV2RelatedItemsOptions) => {
const {baseUrl, fetch: fetchFn = fetch, oauth2} = options ?? {}

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

if (oauth2 !== undefined) headers.set('authorization', `Bearer ${oauth2}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v2/related-items${query.size > 0 ? `?${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(getApiV2RelatedItemsResponse, await res.json())
};