import {z} from 'zod'

export type OrdersLineItemsChangeRequest = {orders_line_items_change: {products_price_id: number | string, prorate?: (boolean | null) | undefined, effective_time?: ('now' | 'next_renewal' | 'null' | null) | undefined}};

export type CreateApiOrdersLineItemsLineItemIdChangesArgs = {line_item_id: number | string, body: OrdersLineItemsChangeRequest};

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

export const productsPriceMinimal = z.object({id: z.number().int().optional(), public_id: z.string().nullable().optional(), name: z.string().nullable().optional(), key: z.string().nullable().optional(), amount: z.string().nullable().optional(), currency: z.string().nullable().optional(), duration: z.number().int().nullable().optional(), interval: z.string().nullable().optional(), interval_count: z.number().int().nullable().optional()});

export const ordersLineItemAttributes = z.object({id: z.number().int().optional(), public_id: z.string().nullable().optional(), order_id: z.number().int().optional(), quantity: z.number().int().nullable().optional(), prorated: z.string().nullable().optional(), created_at: z.string().nullable().optional(), updated_at: z.string().nullable().optional(), original_product: z.object({id: z.number().int().optional(), public_id: z.string().nullable().optional(), name: z.string().optional()}).optional(), products_price: productsPriceMinimal.optional(), products_variant: z.object({id: z.number().int().optional(), public_id: z.string().nullable().optional(), name: z.string().optional(), description: z.string().nullable().optional(), sku: z.string().nullable().optional()}).nullable().optional()});

export const ordersLineItemsChangeResponse = z.object({orders_line_items_change: z.object({preview: z.boolean().optional(), upcoming_invoice: z.object({total_amount: z.string().nullable().optional(), subtotal_amount: z.string().nullable().optional(), tax_amount: z.string().nullable().optional(), shipping_amount: z.string().nullable().optional(), discount_amount: z.string().nullable().optional(), currency: z.string().nullable().optional(), next_invoice_date: z.string().nullable().optional()}).optional(), previous_line_item: ordersLineItemAttributes.optional(), new_line_item: ordersLineItemAttributes.optional()}).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
};

/**
 * Preview Variant/Price Change
 * 
 * POST /orders/line_items/{line_item_id}/changes
 * 
 * Also accepts auth: OAuth2
 */
export const createApiOrdersLineItemsLineItemIdChanges = async (args: CreateApiOrdersLineItemsLineItemIdChangesArgs, options?: CreateApiOrdersLineItemsLineItemIdChangesOptions) => {
const {baseUrl = "https://myworkspace.myclickfunnels.com/api/v2", fetch: fetchFn = fetch, BearerAuth} = options ?? {}

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

if (BearerAuth !== undefined) headers.set('authorization', `Bearer ${BearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/orders/line_items/${encodeURIComponent(String(args.line_item_id))}/changes${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(ordersLineItemsChangeResponse, await res.json())
};