import {z} from 'zod'

export type GetApiV2CheckoutSessionsSessionIdArgs = {session_id: string, 'User-Agent': string};

export type GetApiV2CheckoutSessionsSessionIdOptions = {baseUrl: string, checkoutOauthDev?: string | undefined, fetch?: typeof fetch | undefined};

export const checkoutAmount = z.object({currency: z.enum(["AED", "AFN", "ALL", "AMD", "ANG", "AOA", "ARS", "AUD", "AWG", "AZN", "BAM", "BBD", "BDT", "BGN", "BHD", "BIF", "BMD", "BND", "BOB", "BOV", "BRL", "BSD", "BTN", "BWP", "BYN", "BYR", "BZD", "CAD", "CDF", "CHE", "CHF", "CHW", "CLF", "CLP", "CNY", "COP", "COU", "CRC", "CUC", "CUP", "CVE", "CZK", "DJF", "DKK", "DOP", "DZD", "EGP", "ERN", "ETB", "EUR", "FJD", "FKP", "GBP", "GEL", "GHS", "GIP", "GMD", "GNF", "GTQ", "GYD", "HKD", "HNL", "HRK", "HTG", "HUF", "IDR", "ILS", "INR", "IQD", "IRR", "ISK", "JMD", "JOD", "JPY", "KES", "KGS", "KHR", "KMF", "KPW", "KRW", "KWD", "KYD", "KZT", "LAK", "LBP", "LKR", "LRD", "LSL", "LYD", "MAD", "MDL", "MGA", "MKD", "MMK", "MNT", "MOP", "MRO", "MRU", "MUR", "MVR", "MWK", "MXN", "MXV", "MYR", "MZN", "NAD", "NGN", "NIO", "NOK", "NPR", "NZD", "OMR", "PAB", "PEN", "PGK", "PHP", "PKR", "PLN", "PYG", "QAR", "RON", "RSD", "RUB", "RWF", "SAR", "SBD", "SCR", "SDG", "SEK", "SGD", "SHP", "SLE", "SLL", "SOS", "SRD", "SSP", "STD", "STN", "SVC", "SYP", "SZL", "THB", "TJS", "TMT", "TND", "TOP", "TRY", "TTD", "TWD", "TZS", "UAH", "UGX", "USD", "USN", "UYI", "UYU", "UZS", "VED", "VEF", "VES", "VND", "VUV", "WST", "XAF", "XCD", "XCG", "XOF", "XPF", "YER", "ZAR", "ZMW", "ZWL"]), value: z.number().int().lte(9223372036854)});

export const checkoutBillingAddress = z.object({city: z.string().optional(), country: z.string(), state: z.string().optional(), street_address_line1: z.string().optional(), street_address_line2: z.string().optional(), street_address_line3: z.string().optional(), zipcode: z.string().optional()});

export const checkoutBusinessAddress = z.object({city: z.string().optional(), country: z.string(), state: z.string().optional(), street_address_line1: z.string().optional(), street_address_line2: z.string().optional(), street_address_line3: z.string().optional(), zipcode: z.string().optional()});

export const checkoutBackendBusinessData = z.object({active: z.boolean(), address: checkoutBusinessAddress, id: z.string(), name: z.string(), notification_email: z.string().optional()});

export const checkoutCustomer = z.object({email: z.string().optional(), name: z.string().optional(), phone_number: z.string().optional()});

export const checkoutDccOfferInfo = z.object({cardholder_amount: checkoutAmount, ecb_markup: z.string().optional(), exchange_rate: z.string(), markup: z.string()});

export const checkoutSessionLineItem = z.object({description: z.string(), quantity: z.number().int(), unit_price: z.number().int()});

export const checkoutSessionInfoResponse = z.object({amount: checkoutAmount, billing_address: checkoutBillingAddress.optional(), business_data: checkoutBackendBusinessData, cancel_url: z.string().optional(), customer: checkoutCustomer.optional(), customer_success_email: z.string().optional(), dcc: checkoutDccOfferInfo.optional(), enabled_card_brands: z.array(z.enum(["AMEX", "CALLIO", "CARDCO", "UNION_PAY", "DINERS", "DISCOVER", "DOXX", "GENERALI", "JCB", "KH", "MAESTRO", "MASTERCARD", "OTHER", "OTP", "PATIKA", "PREMIUM", "SODEXO", "UP", "VISA", "VITAMIN"])).optional(), failure_url: z.string().optional(), language: z.string().optional(), line_items: z.array(checkoutSessionLineItem).optional(), merchant_reference: z.string().max(60).optional(), merchant_success_email: z.string().optional(), metadata: z.record(z.string(), z.string()).optional(), payment_link_id: z.string().optional(), payment_link_type: z.literal("SINGLE_USE").optional(), payment_status: z.enum(["NONE", "SUCCESS", "FAILED"]), post_success_payment: z.enum(["SHOW_SUCCESS_PAGE", "REDIRECT"]).optional(), session_id: z.string(), session_status: z.enum(["ACTIVE", "PROCESSING", "COMPLETED", "EXPIRED"]), required_customer_fields: z.array(z.enum(["SHIPPING_ADDRESS", "PHONE", "EMAIL"])).optional(), success_url: z.string().optional(), logo_url: z.string().optional(), checkout_custom_note: z.string().max(1000).optional(), privacy_policy_url: z.string().optional(), terms_url: z.string().optional(), transaction_id: z.string().optional(), type: z.enum(["ACCOUNT_VERIFICATION", "PRE_AUTHORISATION", "SALE"])});

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 session details
 * 
 * GET /v2/checkout/sessions/{session_id}
 * 
 * Also accepts auth: checkout_oauth_prd
 */
export const getApiV2CheckoutSessionsSessionId = async (args: GetApiV2CheckoutSessionsSessionIdArgs, options: GetApiV2CheckoutSessionsSessionIdOptions) => {
const {baseUrl, fetch: fetchFn = fetch, checkoutOauthDev} = options ?? {}

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

if (args['User-Agent'] != null) headers.set("User-Agent", String(args['User-Agent']))
if (checkoutOauthDev !== undefined) headers.set('authorization', `Bearer ${checkoutOauthDev}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v2/checkout/sessions/${encodeURIComponent(String(args.session_id))}${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(checkoutSessionInfoResponse, await res.json())
};