import {z} from 'zod'

export type GetApiV3ContractContractIdArgs = {contractId: number};

export type GetApiV3ContractContractIdOptions = {baseUrl?: string | undefined, sec0?: {username: string, password: string} | undefined, fetch?: typeof fetch | undefined};

export const getApiV3ContractContractIdResponse = z.object({id: z.number().int().optional(), merchantId: z.number().int().optional(), name: z.string().optional(), memo: z.string().optional(), terms: z.string().optional(), interval: z.string().optional(), frequency: z.number().int().optional(), weekDay: z.string().optional(), month: z.string().optional(), dayNumber: z.number().int().optional(), dayType: z.string().optional(), day: z.string().optional(), purchases: z.array(z.object({id: z.number().int().optional(), productName: z.string().optional(), quantity: z.number().int().optional(), quantityReturned: z.number().int().optional(), price: z.string().optional(), discountAmount: z.string().optional(), priceDiscountAmount: z.string().optional(), subTotalAmount: z.string().optional(), taxAmount: z.string().optional(), trackingNumber: z.number().int().optional()})).optional(), totalAmount: z.string().optional(), subTotalAmount: z.string().optional(), discountAmount: z.string().optional(), subscriptionCount: z.number().int().optional(), canDelete: z.boolean().optional(), paymentTerm: 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
};

/**
 * Get a Contract
 * 
 * GET /v3/contract/{contractId}
 */
export const getApiV3ContractContractId = async (args: GetApiV3ContractContractIdArgs, options?: GetApiV3ContractContractIdOptions) => {
const {baseUrl = "https://sandbox.api.mxmerchant.com/checkout", fetch: fetchFn = fetch, sec0} = options ?? {}

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

if (sec0 !== undefined) headers.set('authorization', `Basic ${btoa(`${sec0.username}:${sec0.password}`)}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v3/contract/${encodeURIComponent(String(args.contractId))}${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(getApiV3ContractContractIdResponse, await res.json())
};