import {z} from 'zod'

export type ButtonConditions = {has_active_subscription?: (boolean | null) | undefined, subscription_is_active?: (boolean | null) | undefined, has_traffic_limit?: (boolean | null) | undefined, is_admin?: (boolean | null) | undefined, is_moderator?: (boolean | null) | undefined, referral_enabled?: (boolean | null) | undefined, contests_visible?: (boolean | null) | undefined, support_enabled?: (boolean | null) | undefined, language_selection_enabled?: (boolean | null) | undefined, happ_enabled?: (boolean | null) | undefined, simple_subscription_enabled?: (boolean | null) | undefined, show_trial?: (boolean | null) | undefined, show_buy?: (boolean | null) | undefined, has_saved_cart?: (boolean | null) | undefined, min_balance_kopeks?: (number | null) | undefined, max_balance_kopeks?: (number | null) | undefined, min_registration_days?: (number | null) | undefined, max_registration_days?: (number | null) | undefined, min_referrals?: (number | null) | undefined, has_referrals?: (boolean | null) | undefined, promo_group_ids?: (Array<string> | null) | undefined, exclude_promo_group_ids?: (Array<string> | null) | undefined, has_subscription_days_left?: (number | null) | undefined, max_subscription_days_left?: (number | null) | undefined, is_trial_user?: (boolean | null) | undefined, has_autopay?: (boolean | null) | undefined};

export type MenuRowConfig = {id: string, buttons: Array<string>, conditions?: (ButtonConditions | null) | undefined, max_per_row?: number | undefined};

export type ButtonType = 'builtin' | 'url' | 'mini_app' | 'callback';

export type ButtonVisibility = 'all' | 'admins' | 'moderators' | 'subscribers';

export type ButtonOpenMode = 'callback' | 'direct';

export type MenuButtonConfig = {type: ButtonType, builtin_id?: (string | null) | undefined, text: {[key: string]: string}, icon?: (string | null) | undefined, action: string, enabled?: boolean | undefined, visibility?: ButtonVisibility | undefined, conditions?: (ButtonConditions | null) | undefined, dynamic_text?: boolean | undefined, open_mode?: ButtonOpenMode | undefined, webapp_url?: (string | null) | undefined, description?: (string | null) | undefined, sort_order?: (number | null) | undefined};

export type MenuLayoutValidateRequest = {rows?: (Array<MenuRowConfig> | null) | undefined, buttons?: ({[key: string]: MenuButtonConfig} | null) | undefined};

export type CreateApiMenuLayoutValidateArgs = {body: MenuLayoutValidateRequest};

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

export const validationError = z.object({loc: z.array(z.union([z.string(), z.number().int()])), msg: z.string(), type: z.string(), input: z.unknown(), ctx: z.object({}).optional()});

export const menuLayoutValidateResponse = z.object({is_valid: z.boolean(), errors: z.array(validationError).optional(), warnings: z.array(validationError).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
};

/**
 * Validate Menu Layout
 * 
 * POST /menu-layout/validate
 */
export const createApiMenuLayoutValidate = async (args: CreateApiMenuLayoutValidateArgs, options: CreateApiMenuLayoutValidateOptions) => {
const {baseUrl, fetch: fetchFn = fetch, APIKeyHeader} = options ?? {}

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

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

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