import {z} from 'zod'

export type GetApiV1WebhooksArgs = {page_number?: number | undefined, page_size?: number | undefined};

export type GetApiV1WebhooksOptions = {baseUrl?: string | undefined, ApiKey?: string | undefined, fetch?: typeof fetch | undefined};

export const environmentMode = z.enum(["test", "prod", "sandbox"]);

export const webhookDeliveryMode = z.enum(["http", "cli"]);

export const webhookStatus = z.enum(["enabled", "disabled"]);

export const webhookEventType = z.enum(["checkout.completed", "refund.created", "dispute.created", "subscription.active", "subscription.trialing", "subscription.canceled", "subscription.scheduled_cancel", "subscription.paid", "subscription.expired", "subscription.unpaid", "subscription.update", "subscription.past_due", "subscription.paused", "customer_credits.exhausted", "credits.granted", "credits.consumed", "credits.auto_recharged"]);

export const webhookEntity = z.object({id: z.string(), mode: environmentMode, object: z.string(), store_id: z.string(), name: z.string().nullable(), url: z.string(), delivery_mode: webhookDeliveryMode, status: webhookStatus, events: z.array(webhookEventType), secret: z.string().optional()});

export const paginationEntity = z.object({total_records: z.number(), total_pages: z.number(), current_page: z.number(), next_page: z.number().nullable(), prev_page: z.number().nullable()});

export const webhookListEntity = z.object({items: z.array(webhookEntity), pagination: paginationEntity});

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
};

/**
 * List webhook endpoints
 * 
 * GET /v1/webhooks
 */
export const getApiV1Webhooks = async (args: GetApiV1WebhooksArgs, options?: GetApiV1WebhooksOptions) => {
const {baseUrl = "https://api.creem.io", fetch: fetchFn = fetch, ApiKey} = options ?? {}

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

if (args.page_number != null) query.append("page_number", String(args.page_number))
if (args.page_size != null) query.append("page_size", String(args.page_size))
if (ApiKey !== undefined) headers.set("x-api-key", ApiKey)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/webhooks${query.size > 0 ? `?${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(webhookListEntity, await res.json())
};