import {z} from 'zod'

export type TemplateFieldMode = {mode?: ('HIDDEN' | 'READ_ONLY' | 'OPTIONAL' | 'REQUIRED') | undefined};

export type AddressDetails = {address_1?: TemplateFieldMode | undefined, address_2?: TemplateFieldMode | undefined, address_3?: TemplateFieldMode | undefined, city?: TemplateFieldMode | undefined, country_code?: TemplateFieldMode | undefined, first_name?: TemplateFieldMode | undefined, middle_name?: TemplateFieldMode | undefined, last_name?: TemplateFieldMode | undefined, phone?: TemplateFieldMode | undefined, postal_code?: TemplateFieldMode | undefined, state?: TemplateFieldMode | undefined};

export type CheckoutTemplate = {name: string, entity_id?: string | undefined, billing_is_same_as_shipping?: boolean | undefined, shipping_first_billing_second?: boolean | undefined, field_settings?: ({billing?: AddressDetails | undefined, company_name?: TemplateFieldMode | undefined, company_registration_number?: TemplateFieldMode | undefined, email_address?: TemplateFieldMode | undefined, entity_id?: TemplateFieldMode | undefined, phone_number?: TemplateFieldMode | undefined, shipping?: AddressDetails | undefined, title?: TemplateFieldMode | undefined, work_phone?: TemplateFieldMode | undefined, tax?: ({identifier?: TemplateFieldMode | undefined}) | undefined}) | undefined};

export type CreateApiV2TemplateCheckoutDetailsArgs = {body: CheckoutTemplate};

export type CreateApiV2TemplateCheckoutDetailsOptions = {baseUrl?: string | undefined, BasicAuth?: {username: string, password: string} | undefined, fetch?: typeof fetch | undefined};

export const templateFieldMode = z.object({mode: z.enum(["HIDDEN", "READ_ONLY", "OPTIONAL", "REQUIRED"]).optional()});

export const addressDetails = z.object({address_1: templateFieldMode.optional(), address_2: templateFieldMode.optional(), address_3: templateFieldMode.optional(), city: templateFieldMode.optional(), country_code: templateFieldMode.optional(), first_name: templateFieldMode.optional(), middle_name: templateFieldMode.optional(), last_name: templateFieldMode.optional(), phone: templateFieldMode.optional(), postal_code: templateFieldMode.optional(), state: templateFieldMode.optional()});

export const createApiV2TemplateCheckoutDetailsResponse = z.object({name: z.string().max(255), entity_id: z.string().optional(), billing_is_same_as_shipping: z.boolean().optional(), shipping_first_billing_second: z.boolean().optional(), field_settings: z.object({billing: addressDetails.optional(), company_name: templateFieldMode.optional(), company_registration_number: templateFieldMode.optional(), email_address: templateFieldMode.optional(), entity_id: templateFieldMode.optional(), phone_number: templateFieldMode.optional(), shipping: addressDetails.optional(), title: templateFieldMode.optional(), work_phone: templateFieldMode.optional(), tax: z.object({identifier: templateFieldMode.optional()}).optional()}).optional(), id: z.string().optional(), created_at: z.string().optional(), updated_at: z.string().optional(), status: z.enum(["ACTIVE", "INACTIVE"]).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 Template
 * 
 * POST /v2/template/checkoutDetails
 * 
 * Also accepts auth: BearerAuth
 */
export const createApiV2TemplateCheckoutDetails = async (args: CreateApiV2TemplateCheckoutDetailsArgs, options?: CreateApiV2TemplateCheckoutDetailsOptions) => {
const {baseUrl = "https://emea.gsc.verifone.cloud/oidc/checkout-service", fetch: fetchFn = fetch, BasicAuth} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/v2/template/checkoutDetails${query.size > 0 ? `?${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(createApiV2TemplateCheckoutDetailsResponse, await res.json())
};