import {z} from 'zod'

export type Reference = string;

export type AmountMinor = number;

export type Currency = unknown;

export type CardDynamicDescriptor = string;

export type CardPaymentMethodRequest = {type: string, dynamic_descriptor: CardDynamicDescriptor};

export type SddRemittanceInfo = string;

export type SddPaymentMethodRequest = {type: string, remittance_info: SddRemittanceInfo};

export type PaymentMethodRequest = CardPaymentMethodRequest | SddPaymentMethodRequest;

export type SplitsType = 'per_transaction';

export type SplitsAccountType = 'platform' | 'seller' | 'other';

export type AccountId = string;

export type SplitAmountMinor = number;

export type SplitFixedAmount = {type: 'fixed' | 'percentage' | 'remaining', amount: SplitAmountMinor};

export type SplitPercentageAmountRequest = {type: 'fixed' | 'percentage' | 'remaining', percentage: number};

export type SplitRemainingAmountRequest = {type: 'fixed' | 'percentage' | 'remaining'};

export type ProcessingFeeRequest = {percentage: number};

export type SplitsRequest = {type: SplitsType, accounts: Array<{type: SplitsAccountType, id: AccountId, split: SplitFixedAmount | SplitPercentageAmountRequest | SplitRemainingAmountRequest, processing_fee?: ProcessingFeeRequest | undefined}>};

export type StandingInstructionId = string;

export type SubsequentStandingInstructionRequest = {id: StandingInstructionId};

export type PaymentWebhooksRequest = {url: string};

export type CreatePaymentRequest = {reference: Reference, amount: AmountMinor, currency: Currency, method?: PaymentMethodRequest | undefined, splits: SplitsRequest, standing_instruction: SubsequentStandingInstructionRequest, webhooks?: PaymentWebhooksRequest | undefined};

export type CreateApiV2PaymentsArgs = {'Getpaid-Idempotency-Key': string, body: CreatePaymentRequest};

export type CreateApiV2PaymentsOptions = {baseUrl?: string | undefined, OAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const paymentId = z.string().min(30).max(50);

export const paymentStatus = z.enum(["initiated", "action_required", "submitted", "authorized", "captured", "declined", "failed", "partially_refunded", "refunded"]);

export const paymentReason = z.object({code: z.string(), description: z.string()});

export const reference = z.string().min(1).max(50);

export const createdAt = z.string().min(24).max(24);

export const updatedAt = z.string().min(24).max(24);

export const statementDescriptorResponse = z.string().min(1).max(140);

export const paymentMethodType = z.enum(["card", "sepa_direct_debit"]);

export const paymentMethodDisplayHint = z.string().min(1).max(50);

export const cardDynamicDescriptor = z.string().min(1).max(18);

export const cardScheme = z.enum(["visa", "mastercard"]);

export const cardPaymentMethodDetails = z.object({type: paymentMethodType, display_hint: paymentMethodDisplayHint, dynamic_descriptor: cardDynamicDescriptor, card: z.object({scheme: cardScheme, holder_name: z.string().min(1).max(26), first_digits: z.string().min(4).max(6), last_digits: z.string().min(4).max(4), expiry_month: z.number().int().gte(1).lte(12), expiry_year: z.number().int().gte(2021), kind: z.enum(["credit", "debit"]).optional(), segment: z.enum(["consumer", "corporate"]).optional()})});

export const sddRemittanceInfo = z.string().min(1).max(140);

export const sddPaymentMethodDetails = z.object({type: paymentMethodType, display_hint: paymentMethodDisplayHint, remittance_info: sddRemittanceInfo, bank_account: z.object({type: z.enum(["business", "consumer"]), number: z.object({type: z.literal("iban"), value: z.string().min(15).max(33)})})});

export const paymentMethodDetails = z.discriminatedUnion("type", [cardPaymentMethodDetails, sddPaymentMethodDetails]);

export const splitsType = z.literal("per_transaction");

export const splitsAccountType = z.enum(["platform", "seller", "other"]);

export const accountId = z.string().min(30).max(50);

export const accountVersion = z.string().min(1).max(50);

export const accountLegalName = z.string().min(1).max(250);

export const splitAmountMinor = z.number().int();

export const splitFixedAmount = z.object({type: z.enum(["fixed", "percentage", "remaining"]), amount: splitAmountMinor});

export const splitPercentageAmountCalculated = z.object({type: z.enum(["fixed", "percentage", "remaining"]), percentage: z.number().gte(0).lte(100).multipleOf(0.1), amount: splitAmountMinor});

export const splitRemainingAmountCalculated = z.object({type: z.enum(["fixed", "percentage", "remaining"]), amount: splitAmountMinor});

export const processingFeeAmount = z.number().int();

export const processingFeeCalculating = z.object({percentage: z.number().gte(0).lte(100).multipleOf(0.1), amount: processingFeeAmount.optional()});

export const splitsCalculatedAndCalculatingFees = z.object({type: splitsType, accounts: z.array(z.object({type: splitsAccountType, id: accountId, version: accountVersion, legal_name: accountLegalName, split: z.discriminatedUnion("type", [splitFixedAmount, splitPercentageAmountCalculated, splitRemainingAmountCalculated]), processing_fee: processingFeeCalculating}))});

export const paymentAuthentication = z.object({type: z.literal("3ds"), status: z.enum(["succeeded", "failed"]), result: z.object({code: z.enum(["Y", "A", "N", "U", "R"]).min(1).max(1), eci: z.enum(["05", "06", "07", "01", "02", "03"]).min(2).max(2)}).optional()});

export const paymentTotals = z.object({net: z.number().int(), captured: z.number().int(), refunded: z.number().int(), refundable: z.number().int(), processing_fees: z.number().int(), accounts: z.array(z.object({type: z.enum(["seller", "platform"]), id: accountId, version: accountVersion, legal_name: accountLegalName, net: z.number().int(), captured: z.number().int(), refunded: z.number().int(), refundable: z.number().int(), processing_fees: z.number().int()}))});

export const createPaymentResponse = z.object({id: paymentId, status: paymentStatus, reason: paymentReason.optional(), reference: reference, created_at: createdAt, updated_at: updatedAt, statement_descriptor: statementDescriptorResponse.optional(), method: paymentMethodDetails, splits: splitsCalculatedAndCalculatingFees, authentication: paymentAuthentication.optional(), totals: paymentTotals});

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 a payment
 * 
 * POST /v2/payments
 */
export const createApiV2Payments = async (args: CreateApiV2PaymentsArgs, options?: CreateApiV2PaymentsOptions) => {
const {baseUrl = "https://api.getpaid.io", fetch: fetchFn = fetch, OAuth} = options ?? {}

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

if (args['Getpaid-Idempotency-Key'] != null) headers.set("Getpaid-Idempotency-Key", String(args['Getpaid-Idempotency-Key']))
if (OAuth !== undefined) headers.set('authorization', `Bearer ${OAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v2/payments${query.size > 0 ? `?${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(createPaymentResponse, await res.json())
};