import {z} from 'zod'

export type CreateApiPurchasesArgs = {'Content-Type'?: string | undefined, body: {amount: number, reference: string, customer_ip: string, currency: string, card_number: string, card_holder: string, card_expiry?: string | undefined, cryptogram?: string | undefined, network_eci?: string | undefined, test?: boolean | undefined, metadata?: Record<string, never> | undefined, addendum_data?: string | undefined, capture?: boolean | undefined, extra?: ({ecm?: string | undefined}) | undefined}};

export type CreateApiPurchasesOptions = {baseUrl?: string | undefined, sec0?: {username: string, password: string} | undefined, fetch?: typeof fetch | undefined};

export const createApiPurchasesResponse = z.object({successful: z.boolean().optional(), response: z.object({authorization: z.string().optional(), id: z.string().optional(), card_number: z.string().optional(), card_holder: z.string().optional(), card_expiry: z.string().optional(), card_token: z.string().optional(), card_type: z.string().optional(), card_category: z.string().optional(), card_subcategory: z.string().optional(), amount: z.number().int().optional(), decimal_amount: z.number().optional(), successful: z.boolean().optional(), message: z.string().optional(), reference: z.string().optional(), currency: z.string().optional(), transaction_id: z.string().optional(), settlement_date: z.string().optional(), transaction_date: z.string().optional(), response_code: z.string().optional(), captured: z.boolean().optional(), captured_amount: z.number().int().optional(), rrn: z.string().optional(), cvv_match: z.string().optional(), metadata: z.object({}).optional(), addendum_data: z.object({}).optional()}).optional(), errors: z.array(z.unknown()).optional(), test: z.boolean().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 a purchase using a network token passthrough
 * 
 * POST /purchases/ ​
 */
export const createApiPurchases = async (args: CreateApiPurchasesArgs, options?: CreateApiPurchasesOptions) => {
const {baseUrl = "https://gateway.pmnts-sandbox.io/v1.0", fetch: fetchFn = fetch, sec0} = options ?? {}

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

if (args['Content-Type'] != null) headers.set("Content-Type", String(args['Content-Type']))
if (sec0 !== undefined) headers.set('authorization', `Basic ${btoa(`${sec0.username}:${sec0.password}`)}`)

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