import {z} from 'zod'

export type CustomerInfo = {name: string, email: string, phone: string, corporate?: boolean | undefined, object?: string | undefined};

export type CustomerInfoCustomerId = {customer_id: string};

export type CheckoutOrderTemplateCustomerInfo = CustomerInfo | CustomerInfoCustomerId;

export type OrderTaxRequestMetadataValue = string | number | number | boolean;

export type Product = {antifraud_info?: {[key: string]: unknown} | undefined, brand?: string | undefined, description?: string | undefined, metadata?: {[key: string]: OrderTaxRequestMetadataValue} | undefined, name: string, quantity: number, sku?: string | undefined, tags?: Array<string> | undefined, unit_price: number};

export type OrderTaxRequest = {amount: number, description: string, metadata?: {[key: string]: OrderTaxRequestMetadataValue} | undefined};

export type OrderDiscountLinesRequest = {amount: number, code: string, type: string};

export type CheckoutOrderTemplate = {currency: string, customer_info?: CheckoutOrderTemplateCustomerInfo | undefined, line_items: Array<Product>, metadata?: {[key: string]: unknown} | undefined, tax_lines?: Array<OrderTaxRequest> | undefined, discount_lines?: Array<OrderDiscountLinesRequest> | undefined};

export type Checkout = {allowed_payment_methods?: Array<string> | undefined, excluded_payment_methods?: (Array<'cash' | 'card' | 'bank_transfer' | 'bnpl' | 'pay_by_bank'>) | undefined, exclude_card_networks?: (Array<'visa_master_card' | 'amex'>) | undefined, expires_at: number, monthly_installments_enabled?: boolean | undefined, monthly_installments_options?: Array<number> | undefined, three_ds_mode?: ('strict' | 'not_strict' | 'smart') | undefined, name: string, needs_shipping_contact?: boolean | undefined, on_demand_enabled?: (boolean | null) | undefined, plan_ids?: Array<string> | undefined, order_template: CheckoutOrderTemplate, payments_limit_count?: number | undefined, redirection_time?: number | undefined, success_url?: string | undefined, recurrent: boolean, type: string};

export type CreateApiCheckoutsArgs = {'Accept-Language'?: ('es' | 'en') | undefined, 'X-Child-Company-Id'?: string | undefined, 'Idempotency-Key'?: string | undefined, body: Checkout};

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

export const checkoutResponse = z.object({allowed_payment_methods: z.array(z.string()).optional(), excluded_payment_methods: z.array(z.enum(["cash", "card", "bank_transfer", "bnpl", "pay_by_bank"])).optional(), plan_ids: z.array(z.string()).optional(), can_not_expire: z.boolean().optional(), emails_sent: z.number().int().optional(), exclude_card_networks: z.array(z.enum(["visa", "mastercard", "amex"])).optional(), expires_at: z.number().int().optional(), failure_url: z.string().optional(), force_3ds_flow: z.boolean().optional(), id: z.string(), livemode: z.boolean(), 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(), needs_shipping_contact: z.boolean().optional(), object: z.string(), paid_payments_count: z.number().int().optional(), payments_limit_count: z.number().int().nullable().optional(), recurrent: z.boolean().optional(), redirection_time: z.number().int().nullable().optional(), slug: z.string().optional(), starts_at: z.number().int().optional(), status: z.string().optional(), success_url: z.string().optional(), type: z.string().optional(), url: 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 Unique Payment Link
 * 
 * POST /checkouts
 */
export const createApiCheckouts = async (args: CreateApiCheckoutsArgs, options?: CreateApiCheckoutsOptions) => {
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 (args['X-Child-Company-Id'] != null) headers.set("X-Child-Company-Id", String(args['X-Child-Company-Id']))
if (args['Idempotency-Key'] != null) headers.set("Idempotency-Key", String(args['Idempotency-Key']))
if (bearerAuth !== undefined) headers.set('authorization', `Bearer ${bearerAuth}`)

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