import {z} from 'zod'

export type VirtualAccountStatus = 'pending' | 'approved' | 'declined' | 'expired' | 'closed' | 'reviewed';

export type VirtualAccountCurrency = 'NGN' | 'GHS' | 'KES' | 'TZS' | 'RWF' | 'UGX' | 'XAF' | 'USD' | 'EUR' | 'GBP' | 'CAD';

export type VirtualAccountType = 'individual' | 'corporate';

export type GetApiProfileVirtualAccountsArgs = {page?: number | undefined, perPage?: number | undefined, status?: VirtualAccountStatus | undefined, currency?: VirtualAccountCurrency | undefined, accountType?: VirtualAccountType | undefined, entityType?: ('main_account' | 'sub_account') | undefined, requestedDate?: string | undefined, issuedDate?: string | undefined, businessName?: string | undefined, virtualAccountType?: string | undefined, accountNumber?: string | undefined, merchantReference?: string | undefined};

export type GetApiProfileVirtualAccountsOptions = {baseUrl?: string | undefined, sec0?: string | undefined, fetch?: typeof fetch | undefined};

export const virtualAccountCurrency = z.enum(["NGN", "GHS", "KES", "TZS", "RWF", "UGX", "XAF", "USD", "EUR", "GBP", "CAD"]);

export const virtualAccountType = z.enum(["individual", "corporate"]);

export const virtualAccountStatus = z.enum(["pending", "approved", "declined", "expired", "closed", "reviewed"]);

export const virtualAccountBankDetails = z.object({accountNumber: z.string().optional(), accountName: z.string().optional(), bankName: z.string().optional(), bankCode: z.string().optional(), iban: z.string().optional(), swiftCode: z.string().optional(), routingNumber: z.string().optional(), paymentScheme: z.string().optional(), alternateAccountDetails: z.array(z.record(z.string(), z.unknown())).optional()}).and(z.record(z.string(), z.unknown()));

export const virtualAccount = z.object({_id: z.string().optional(), business: z.union([z.string(), z.object({})]).optional(), parentBusiness: z.union([z.string(), z.object({})]).nullable().optional(), currency: virtualAccountCurrency.optional(), accountType: virtualAccountType.optional(), status: virtualAccountStatus.optional(), isActive: z.boolean().optional(), isPermanent: z.literal(true).optional(), accountNumber: z.string().nullable().optional(), accountInformation: virtualAccountBankDetails.nullable().optional(), merchantReference: z.string().nullable().optional(), KYCInformation: z.record(z.string(), z.unknown()).optional(), entityType: z.enum(["main_account", "sub_account"]).optional(), virtualAccountType: z.string().optional(), accountOpeningFee: z.number().optional(), createdAt: z.string().optional(), updatedAt: z.string().optional()}).and(z.record(z.string(), z.unknown()));

export const virtualAccountListResponse = z.object({success: z.literal(true), message: z.string(), data: z.object({results: z.array(virtualAccount), total: z.number().int().gte(0)})});

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 permanent virtual accounts
 * 
 * GET /profile/virtual-accounts
 */
export const getApiProfileVirtualAccounts = async (args: GetApiProfileVirtualAccountsArgs, options?: GetApiProfileVirtualAccountsOptions) => {
const {baseUrl = "https://sandboxapi.fincra.com", fetch: fetchFn = fetch, sec0} = options ?? {}

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

if (args.page != null) query.append("page", String(args.page))
if (args.perPage != null) query.append("perPage", String(args.perPage))
if (args.status != null) query.append("status", String(args.status))
if (args.currency != null) query.append("currency", String(args.currency))
if (args.accountType != null) query.append("accountType", String(args.accountType))
if (args.entityType != null) query.append("entityType", String(args.entityType))
if (args.requestedDate != null) query.append("requestedDate", String(args.requestedDate))
if (args.issuedDate != null) query.append("issuedDate", String(args.issuedDate))
if (args.businessName != null) query.append("businessName", String(args.businessName))
if (args.virtualAccountType != null) query.append("virtualAccountType", String(args.virtualAccountType))
if (args.accountNumber != null) query.append("accountNumber", String(args.accountNumber))
if (args.merchantReference != null) query.append("merchantReference", String(args.merchantReference))
if (sec0 !== undefined) headers.set("api-key", sec0)

const url = `${baseUrl.replace(/\/+$/, '')}/profile/virtual-accounts${query.size > 0 ? `?${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(virtualAccountListResponse, await res.json())
};