import {z} from 'zod'

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

export const fnolEventData = z.object({locator: z.string()});

export const fnolClaimData = z.object({fnolLocator: z.string(), claimLocator: z.string()});

export const fnolEvents = z.object({"claim.fnol.update": fnolEventData.optional(), "claim.fnol.complete": fnolEventData.optional(), "claim.fnol.validate": fnolEventData.optional(), "claim.fnol.create": fnolEventData.optional(), "claim.fnol.anonymize": fnolEventData.optional(), "fnol.numberAssignmentFailed": fnolEventData.optional(), "claim.fnol.reject": fnolEventData.optional(), "claim.fnol.discard": fnolEventData.optional(), "claim.fnol.onclaim": fnolClaimData.optional()});

export const claimReserveLocatorData = z.object({claimLocator: z.string(), claimExposureLocator: z.string(), locator: z.string()});

export const claimReserveEvents = z.object({"claim.reserve.discard": claimReserveLocatorData.optional(), "claim.reserve.update": claimReserveLocatorData.optional(), "claim.reserve.create": claimReserveLocatorData.optional(), "claim.reserve.open": claimReserveLocatorData.optional(), "claim.reserve.close": claimReserveLocatorData.optional()});

export const claimPaymentLocatorData = z.object({claimLocator: z.string(), claimExposureLocator: z.string(), reserveLocator: z.string(), locator: z.string()});

export const claimPaymentEvents = z.object({"claim.payment.discard": claimPaymentLocatorData.optional(), "claim.payment.approve": claimPaymentLocatorData.optional(), "claim.payment.create": claimPaymentLocatorData.optional(), "claim.payment.execute": claimPaymentLocatorData.optional(), "claim.payment.reverse": claimPaymentLocatorData.optional(), "claim.payment.cancel": claimPaymentLocatorData.optional()});

export const claimServiceEventTypeDefinitions = z.object({fnolEvents: fnolEvents, claimReserveEvents: claimReserveEvents, claimPaymentEvents: claimPaymentEvents});

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 /claim/events
 */
export const getApiClaimEvents = async (options: GetApiClaimEventsOptions) => {
const {baseUrl, fetch: fetchFn = fetch} = options ?? {}

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

const url = `${baseUrl.replace(/\/+$/, '')}/claim/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(claimServiceEventTypeDefinitions, await res.json())
};