import {z} from 'zod'

export type CreateApiV1ShopsShopIdCheckoutArgs = {body: {cart: Array<{productId?: (number | null) | undefined, variantId?: (number | null) | undefined, parentVariantId?: (number | null) | undefined, name?: (string | null) | undefined, price?: (number | null) | undefined, deliverables: Array<string>, instructions?: (string | null) | undefined, dynamic_url?: (string | null) | undefined, quantity: number, subscribe?: (boolean | null) | undefined, custom_fields?: (Array<string | null>) | undefined}>, currency?: (string | null) | undefined, ip?: (string | null) | undefined, country_code?: (string | null) | undefined, user_agent?: (string | null) | undefined, asn?: (number | null) | undefined, email?: (string | null) | undefined, discord_user_id?: (string | null) | undefined, discord_user_username?: (string | null) | undefined, discord_access_token?: (string | null) | undefined, discord_refresh_token?: (string | null) | undefined, coupon?: (string | null) | undefined, gateway?: (string | null) | undefined, payment_method_id?: (number | null) | undefined, newsletter?: (boolean | null) | undefined, affiliate?: (string | null) | undefined, billing_name?: (string | null) | undefined, billing_address_line1?: (string | null) | undefined, billing_address_line2?: (string | null) | undefined, billing_city?: (string | null) | undefined, billing_state?: (string | null) | undefined, billing_postcode?: (string | null) | undefined, billing_country?: (string | null) | undefined, shipping_name?: (string | null) | undefined, shipping_address_line1?: (string | null) | undefined, shipping_address_line2?: (string | null) | undefined, shipping_city?: (string | null) | undefined, shipping_state?: (string | null) | undefined, shipping_postcode?: (string | null) | undefined, shipping_country?: (string | null) | undefined, shipping_phone?: (string | null) | undefined, metadata?: (Array<string | null>) | undefined, attribution?: ({utm_source?: (string | null) | undefined, utm_medium?: (string | null) | undefined, utm_campaign?: (string | null) | undefined, utm_term?: (string | null) | undefined, utm_content?: (string | null) | undefined, referrer_host?: (string | null) | undefined} | null) | undefined}};

export type CreateApiV1ShopsShopIdCheckoutOptions = {baseUrl?: string | undefined, defaultValue?: string | undefined, fetch?: typeof fetch | undefined};

export const createApiV1ShopsShopIdCheckoutResponse = z.union([z.object({success: z.boolean().optional(), invoice_id: z.number().int().optional(), invoice_url: z.string().optional(), url: z.string().optional()}), z.object({success: z.boolean().optional(), invoice_id: z.number().int().optional(), invoice_url: 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 Checkout Session
 * 
 * POST /v1/shops/{shopId}/checkout
 */
export const createApiV1ShopsShopIdCheckout = async (args: CreateApiV1ShopsShopIdCheckoutArgs, options?: CreateApiV1ShopsShopIdCheckoutOptions) => {
const {baseUrl = "https://api.sellauth.com", fetch: fetchFn = fetch, defaultValue} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/v1/shops/${encodeURIComponent(String(args.shopId))}/checkout${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(createApiV1ShopsShopIdCheckoutResponse, await res.json())
};