import {z} from 'zod'

export type Currency = string;

export type Decimal = number;

export type Customer = {name: string, document_type?: (string | null) | undefined, document_number?: (string | null) | undefined, email?: (string | null) | undefined};

export type IntentDataRequest = {destination_id: string, external_id: string, concept?: string | undefined, currency: Currency, amount: Decimal, payment_method?: ('transfer' | 'qr') | undefined, customer: Customer | string};

export type CreateApiPayinIntentArgs = {body: IntentDataRequest};

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

export const country = z.string();

export const bank = z.object({code: z.string().optional(), bicfi: z.string().optional(), name: z.string().max(50).optional(), country: country.optional()});

export const virtualAccountDetails = z.object({account_format: z.enum(["clabe", "bre_b", "alias"]), account_number: z.string(), name: z.string().max(50).optional(), active: z.boolean().optional(), branch: z.string().optional(), bank: bank.optional()});

export const qRCodeDetails = z.object({emv_code: z.string(), img: z.string(), external_link: z.string().optional(), expire_date: z.string().optional()});

export const payinCustomer = z.object({name: z.string().max(50).optional(), tax_id_type: z.enum(["rfc", "cnpj", "cpf", "ruc", "curp", "le", "dni", "lm", "pas", "ce", "nit", "cc", "pa", "ti", "nuip", "ppt", "pep", "cuil", "cuit", "other"]).optional(), tax_id: z.string().optional(), external_id: z.string(), virtual_account: virtualAccountDetails.optional(), qr_code: qRCodeDetails.optional()});

export const intentDataResponse = z.object({id: z.string(), customer: payinCustomer});

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 payment intent
 * 
 * POST /payin/intent
 */
export const createApiPayinIntent = async (args: CreateApiPayinIntentArgs, options: CreateApiPayinIntentOptions) => {
const {baseUrl, fetch: fetchFn = fetch} = options ?? {}

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

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