import {z} from 'zod'

export type GetApiMenuLayoutExportOptions = {baseUrl: string, APIKeyHeader?: string | undefined, fetch?: typeof fetch | undefined};

export const buttonConditions = z.object({has_active_subscription: z.boolean().nullable().optional(), subscription_is_active: z.boolean().nullable().optional(), has_traffic_limit: z.boolean().nullable().optional(), is_admin: z.boolean().nullable().optional(), is_moderator: z.boolean().nullable().optional(), referral_enabled: z.boolean().nullable().optional(), contests_visible: z.boolean().nullable().optional(), support_enabled: z.boolean().nullable().optional(), language_selection_enabled: z.boolean().nullable().optional(), happ_enabled: z.boolean().nullable().optional(), simple_subscription_enabled: z.boolean().nullable().optional(), show_trial: z.boolean().nullable().optional(), show_buy: z.boolean().nullable().optional(), has_saved_cart: z.boolean().nullable().optional(), min_balance_kopeks: z.number().int().gte(0).nullable().optional(), max_balance_kopeks: z.number().int().gte(0).nullable().optional(), min_registration_days: z.number().int().gte(0).nullable().optional(), max_registration_days: z.number().int().gte(0).nullable().optional(), min_referrals: z.number().int().gte(0).nullable().optional(), has_referrals: z.boolean().nullable().optional(), promo_group_ids: z.array(z.string()).nullable().optional(), exclude_promo_group_ids: z.array(z.string()).nullable().optional(), has_subscription_days_left: z.number().int().gte(0).nullable().optional(), max_subscription_days_left: z.number().int().gte(0).nullable().optional(), is_trial_user: z.boolean().nullable().optional(), has_autopay: z.boolean().nullable().optional()});

export const menuRowConfig = z.object({id: z.string().min(1).max(50), buttons: z.array(z.string()), conditions: buttonConditions.nullable().optional(), max_per_row: z.number().int().gte(1).lte(4).optional()});

export const buttonType = z.enum(["builtin", "url", "mini_app", "callback"]);

export const buttonVisibility = z.enum(["all", "admins", "moderators", "subscribers"]);

export const buttonOpenMode = z.enum(["callback", "direct"]);

export const menuButtonConfig = z.object({type: buttonType, builtin_id: z.string().nullable().optional(), text: z.record(z.string(), z.string()), icon: z.string().max(10).nullable().optional(), action: z.string(), enabled: z.boolean().optional(), visibility: buttonVisibility.optional(), conditions: buttonConditions.nullable().optional(), dynamic_text: z.boolean().optional(), open_mode: buttonOpenMode.optional(), webapp_url: z.string().nullable().optional(), description: z.string().max(200).nullable().optional(), sort_order: z.number().int().nullable().optional()});

export const menuLayoutExportResponse = z.object({version: z.number().int(), rows: z.array(menuRowConfig), buttons: z.record(z.string(), menuButtonConfig), exported_at: z.string(), bot_version: z.string().nullable().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
};

/**
 * Export Menu Layout
 * 
 * GET /menu-layout/export
 */
export const getApiMenuLayoutExport = async (options: GetApiMenuLayoutExportOptions) => {
const {baseUrl, fetch: fetchFn = fetch, APIKeyHeader} = options ?? {}

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

if (APIKeyHeader !== undefined) headers.set("X-API-Key", APIKeyHeader)

const url = `${baseUrl.replace(/\/+$/, '')}/menu-layout/export${query.size > 0 ? `?${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(menuLayoutExportResponse, await res.json())
};