import {z} from 'zod'

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

export const documentCopyOnIssueReadyPayload = z.object({quoteReferenceLocator: z.string()});

export const documentGenerationEventsPayload = z.object({documentLocator: z.string(), referenceType: z.enum(["quote", "policy", "invoice", "transaction", "segment", "term", "quoteGroup"]), referenceLocator: z.string()});

export const documentPluginFailedPayload = z.object({pluginType: z.enum(["rating", "underwriting", "validation", "documentSelection", "documentDataSnapshot", "preCommit", "renewal", "delinquencyEvent", "documentConsolidationSnapshot", "installments", "autopay", "paymentPostProcessing", "cancellation", "continuation", "automationHttp", "automationWebhook", "documentConsolidationSelection", "workplanSelection", "workplanExecution", "deserialization", "configMigration", "integrations"])});

export const documentEvents = z.object({"document.copyOnIssue.ready": documentCopyOnIssueReadyPayload.optional(), "document.ready": documentGenerationEventsPayload.optional(), "document.failed": documentGenerationEventsPayload.optional(), "document.plugin.failed": documentPluginFailedPayload.optional()});

export const documentServiceEventTypeDefinitions = z.object({documentEvents: documentEvents});

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
};

/**
 * GET /document/events
 */
export const getApiDocumentEvents = async (options: GetApiDocumentEventsOptions) => {
const {baseUrl, fetch: fetchFn = fetch} = options ?? {}

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

const url = `${baseUrl.replace(/\/+$/, '')}/document/events${query.size > 0 ? `?${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(documentServiceEventTypeDefinitions, await res.json())
};