import {z} from 'zod'

export type GetApiPolicyTenantLocatorTransactionsLocatorPreferencesArgs = {tenantLocator: string, locator: unknown};

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

export const installmentPreferences = z.object({cadence: z.enum(["none", "fullPay", "weekly", "everyOtherWeek", "monthly", "quarterly", "semiannually", "annually", "thirtyDays", "everyNDays"]).optional(), anchorMode: z.enum(["generateDay", "termStartDay", "dueDay"]).optional(), generateLeadDays: z.number().int().optional(), dueLeadDays: z.number().int().optional(), installmentWeights: z.array(z.number()), maxInstallmentsPerTerm: z.number().int().optional(), installmentPlanName: z.string().optional(), anchorType: z.enum(["none", "dayOfMonth", "anchorTime", "dayOfWeek", "weekOfMonth"]).optional(), dayOfMonth: z.number().int().optional(), dayOfWeek: z.enum(["monday", "tuesday", "wednesday", "thursday", "friday", "saturday", "sunday"]).optional(), weekOfMonth: z.enum(["none", "first", "second", "third", "fourth", "fifth"]).optional(), anchorTime: z.string().optional(), autopayLeadDays: z.number().optional()});

export const preferences = z.object({installmentPreferences: installmentPreferences.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
};

/**
 * GET /policy/{tenantLocator}/transactions/{locator}/preferences
 */
export const getApiPolicyTenantLocatorTransactionsLocatorPreferences = async (args: GetApiPolicyTenantLocatorTransactionsLocatorPreferencesArgs, options: GetApiPolicyTenantLocatorTransactionsLocatorPreferencesOptions) => {
const {baseUrl, fetch: fetchFn = fetch} = options ?? {}

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

const url = `${baseUrl.replace(/\/+$/, '')}/policy/${encodeURIComponent(String(args.tenantLocator))}/transactions/${encodeURIComponent(String(args.locator))}/preferences${query.size > 0 ? `?${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(preferences, await res.json())
};