import {z} from 'zod'

export type GetApiApiV2DirectDebitMandatesAccountAccountUidArgs = {accountUid: string};

export type GetApiApiV2DirectDebitMandatesAccountAccountUidOptions = {baseUrl: string, Bearer?: string | undefined, fetch?: typeof fetch | undefined};

export const currencyAndAmount = z.object({currency: z.string().min(1), minorUnits: z.number().int().gte(0)});

export const lastPayment = z.object({lastDate: z.string().optional(), lastAmount: currencyAndAmount.optional()}).nullable();

export const directDebitMandateV2 = z.object({uid: z.string().optional(), reference: z.string().optional(), status: z.enum(["CANCELLED", "LIVE", "PENDING_CAS"]).optional(), source: z.enum(["ELECTRONIC", "PAPER"]).optional(), created: z.string().optional(), cancelled: z.string().optional(), nextDate: z.string().optional(), lastDate: z.string().optional(), originatorName: z.string().optional(), originatorUid: z.string().optional(), merchantUid: z.string().optional(), lastPayment: lastPayment.optional(), accountUid: z.string().optional(), categoryUid: z.string().optional()});

export const directDebitMandatesV2 = z.object({mandates: z.array(directDebitMandateV2).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 a list of direct debit mandates
 * 
 * GET /api/v2/direct-debit/mandates/account/{accountUid}
 */
export const getApiApiV2DirectDebitMandatesAccountAccountUid = async (args: GetApiApiV2DirectDebitMandatesAccountAccountUidArgs, options: GetApiApiV2DirectDebitMandatesAccountAccountUidOptions) => {
const {baseUrl, fetch: fetchFn = fetch, Bearer} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/api/v2/direct-debit/mandates/account/${encodeURIComponent(String(args.accountUid))}${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(directDebitMandatesV2, await res.json())
};