import {z} from 'zod'

export type CountryId = 'DE' | 'AT' | 'CH';

export type CurrencyId = 'EUR' | 'CHF';

export type Metadata = {[key: string]: unknown} | null;

export type EasyOnboarding = {success_link?: string | undefined, abort_link?: string | undefined};

export type Language = 'de' | 'en';

export type Xs2aAccountCharacteristicsCheck = Record<string, never>;

export type Xs2aAccountLinkedOffersCheck = Record<string, never>;

export type Filters = Array<string>;

export type Xs2aAccountSnapshot = {days?: number | undefined, from?: string | undefined, to?: string | undefined, filters?: Filters | undefined, all_accounts?: boolean | undefined, all_tags?: boolean | undefined};

export type Xs2aAccountStatusCheck = {limit_turnover_days?: number | undefined, all_accounts?: boolean | undefined};

export type Xs2aAgeVerificationCheck = Record<string, never>;

export type Xs2aAllAccountsCheck = Record<string, never>;

export type Xs2aBalanceCheck = {check_amount?: number | undefined, check_currency_id?: CurrencyId | undefined};

export type Xs2aBalanceOverview = Record<string, never>;

export type Xs2aCashflowOverview = Record<string, never>;

export type Xs2aChargebackCheck = Record<string, never>;

export type Xs2aChildrenCheck = Record<string, never>;

export type Xs2aCollectionCheck = {check_amount?: number | undefined, check_currency_id?: CurrencyId | undefined};

export type Checks = Array<string>;

export type Xs2aCreditCheck = {checks?: Checks | undefined};

export type Xs2aDirectDebitCheck = {check_amount?: number | undefined, check_currency_id?: CurrencyId | undefined, start_date?: string | undefined, end_date?: string | undefined};

export type Xs2aFactSheetLists = {limit_turnover_days?: number | undefined, fields?: (Array<{tags?: Array<string> | undefined, categories?: Array<string> | undefined, name?: string | undefined, min_amount?: number | undefined, max_amount?: number | undefined}>) | undefined};

export type ExpectedHolderObject = {firstname?: string | undefined, name?: string | undefined};

export type Xs2aHolderIdentificationCheck = {expect_holders: Array<ExpectedHolderObject>};

export type Xs2aIncomeCheck = {limit_turnover_days?: number | undefined};

export type Xs2aInsuranceContractCheck = {days?: number | undefined};

export type Xs2aNameCheck = {name: string, firstname: string};

export type Xs2aOverdraftLimitCheck = Record<string, never>;

export type Xs2aProfitLossCheck = Record<string, never>;

export type CalculationsTags = string;

export type CalculationsCategories = string;

export type CalculationsFunctions = 'sum' | 'count' | 'median' | 'average' | 'last' | 'min' | 'max' | 'min_date' | 'max_date' | 'clean_sum' | 'exists' | 'sums_of_every_month' | 'counts_of_every_month' | 'median_of_all_month_sums' | 'average_of_all_month_sums' | 'min_of_all_month_sums' | 'max_of_all_month_sums' | 'distinct_counter_holders';

export type RiskCalculations = {tags?: Array<CalculationsTags> | undefined, categories?: Array<CalculationsCategories> | undefined, functions?: Array<CalculationsFunctions> | undefined, name?: string | undefined, days?: number | undefined, from?: string | undefined, to?: string | undefined, full_months?: string | undefined, children_categories?: boolean | undefined, match_tags_with_categories?: boolean | undefined, include_current_month?: boolean | undefined};

export type Xs2aRiskCalculationsCheck = {calculations: Array<RiskCalculations>};

export type Xs2aSeizureCheck = {days?: number | undefined};

export type Xs2aStandingOrdersCheck = Record<string, never>;

export type Xs2aRisk = {bank_code?: number | undefined, country_id?: CountryId | undefined, account_number?: string | undefined, iban?: string | undefined, bic?: string | undefined, check_amount?: number | undefined, check_currency_id?: CurrencyId | undefined, metadata?: Metadata | undefined, merchant_id?: string | undefined, fints_product_id?: string | undefined, easy_onboarding?: EasyOnboarding | undefined, language?: Language | undefined, xs2a_account_characteristics_check?: Xs2aAccountCharacteristicsCheck | undefined, xs2a_account_linked_offers_check?: Xs2aAccountLinkedOffersCheck | undefined, xs2a_account_snapshot?: Xs2aAccountSnapshot | undefined, xs2a_account_status_check?: Xs2aAccountStatusCheck | undefined, xs2a_age_verification_check?: Xs2aAgeVerificationCheck | undefined, xs2a_all_accounts_check?: Xs2aAllAccountsCheck | undefined, xs2a_balance_check?: Xs2aBalanceCheck | undefined, xs2a_balance_overview?: Xs2aBalanceOverview | undefined, xs2a_cashflow_overview?: Xs2aCashflowOverview | undefined, xs2a_chargeback_check?: Xs2aChargebackCheck | undefined, xs2a_children_check?: Xs2aChildrenCheck | undefined, xs2a_collection_check?: Xs2aCollectionCheck | undefined, xs2a_credit_check?: Xs2aCreditCheck | undefined, xs2a_direct_debit_check?: Xs2aDirectDebitCheck | undefined, xs2a_fact_sheet_lists?: Xs2aFactSheetLists | undefined, xs2a_holder_identification_check?: Xs2aHolderIdentificationCheck | undefined, xs2a_income_check?: Xs2aIncomeCheck | undefined, xs2a_insurance_contract_check?: Xs2aInsuranceContractCheck | undefined, xs2a_name_check?: Xs2aNameCheck | undefined, xs2a_overdraft_limit_check?: Xs2aOverdraftLimitCheck | undefined, xs2a_profit_loss_check?: Xs2aProfitLossCheck | undefined, xs2a_risk_calculations_check?: Xs2aRiskCalculationsCheck | undefined, xs2a_seizure_check?: Xs2aSeizureCheck | undefined, xs2a_standing_orders_check?: Xs2aStandingOrdersCheck | undefined};

export type CreateApiRisksArgs = {body: Xs2aRisk};

export type CreateApiRisksOptions = {baseUrl?: string | undefined, basicAuth?: {username: string, password: string} | undefined, fetch?: typeof fetch | undefined};

export const wizardSessionResponse = z.object({wizard_session_key: z.string().optional(), transaction: z.string().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
};

/**
 * Create xs2a.risk object
 * 
 * POST /risks
 */
export const createApiRisks = async (args: CreateApiRisksArgs, options?: CreateApiRisksOptions) => {
const {baseUrl = "https://api.xs2a.com/v1", fetch: fetchFn = fetch, basicAuth} = options ?? {}

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

if (basicAuth !== undefined) headers.set('authorization', `Basic ${btoa(`${basicAuth.username}:${basicAuth.password}`)}`)

const url = `${baseUrl.replace(/\/+$/, '')}/risks${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "POST", headers, body: JSON.stringify(args.body)})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(wizardSessionResponse, await res.json())
};