import {z} from 'zod'

export type TokenRequestCard = {cvc: string, device_fingerprint?: string | undefined, exp_month: string, exp_year: string, name: string, number: string} | null;

export type TokenRequestCheckout = {returns_control_on?: string | undefined} | null;

export type TokenRequest = {card?: TokenRequestCard | undefined, checkout?: TokenRequestCheckout | undefined};

export type CreateApiTokensArgs = {'Accept-Language'?: ('es' | 'en') | undefined, body: TokenRequest};

export type CreateApiTokensOptions = {baseUrl?: string | undefined, bearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const tokenResponseCheckout = z.object({allowed_payment_methods: z.array(z.string()).optional(), can_not_expire: z.boolean().optional(), emails_sent: z.number().int().optional(), exclude_card_networks: z.array(z.string()).optional(), expires_at: z.number().int().optional(), failure_url: z.string().optional(), force_3ds_flow: z.boolean().optional(), id: z.string().optional(), livemode: z.boolean().optional(), metadata: z.record(z.string(), z.unknown()).optional(), monthly_installments_enabled: z.boolean().optional(), monthly_installments_options: z.array(z.number().int()).optional(), name: z.string().optional(), needs_shipping_contact: z.boolean().optional(), object: z.string().optional(), on_demand_enabled: z.boolean().optional(), paid_payments_count: z.number().int().optional(), recurrent: z.boolean().optional(), sms_sent: z.number().int().optional(), starts_at: z.number().int().optional(), status: z.string().optional(), success_url: z.string().optional(), type: z.string().optional()}).nullable();

export const tokenResponse = z.object({checkout: tokenResponseCheckout.optional(), id: z.string(), livemode: z.boolean(), object: z.string(), used: z.boolean()});

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 Token
 * 
 * POST /tokens
 */
export const createApiTokens = async (args: CreateApiTokensArgs, options?: CreateApiTokensOptions) => {
const {baseUrl = "https://api.conekta.io", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

const query = new URLSearchParams()
const headers = new Headers()
headers.set('content-type', "application/json")
headers.set('accept', "application/vnd.conekta-v2.3.0+json")

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

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