import {
   debounce,
   map,
} from 'lodash';

import type {
   ApikeyACITType,
   ArgsAddBiBoardInput,
   ArgsAuthEmailInput,
   ArgsAuthEmailPrepareInput,
   ArgsAuthPhoneInput,
   ArgsAuthSocInput,
   ArgsCalculateBiBlockInput,
   ArgsCollectionInput,
   ArgsDataInput,
   ArgsDeleteBiBoardInput,
   ArgsDeleteDataInput,
   ArgsDeleteExportInput,
   ArgsDisplayValuesInput,
   ArgsEmptyDataInput,
   ArgsFilterInput,
   ArgsGeneratePaymentLinkInput,
   ArgsGeocodeInput,
   ArgsGeolocationInput,
   ArgsHashInput,
   ArgsMakeExportInput,
   ArgsMakeStatementExportInput,
   ArgsMoveUpdateInput,
   ArgsRemoveApiKeyInput,
   ArgsRunActionInput,
   ArgsStagesTotalInput,
   ArgsUpdateBiBoardInput,
   ArgsUpdateInput,
   ArgsUpdateProfileInput,
   AuthEmailPrepareCFIType,
   AuthSocSTUType,
   BalancePaymentType,
   BiBlockValueType,
   CollectionCDRSType,
   CompositeTypeGType,
   DatumDHLTType,
   DisplayValueDLOTType,
   EmptyDatumIMType,
   FileAudioFileType,
   FileDocumentFileType,
   FileImageFileType,
   FileVideoFileType,
   GeolocationILType,
   GeopointType,
   InitACPTType,
   MenuAMType,
   ProfileBCDSType,
   RpcResponse,
   RunActionPType,
   ShmBiBoardType,
   ShmExportType,
   ShmMsgAuthType,
   StagesTotalMType,
   StructureType,
   UpdateDType,
   UpdateProfileIMType,
} from './types';

export const rpc = {
   addBiBoard: (params: ArgsAddBiBoardInput) => {
      return rpcClient.call<ArgsAddBiBoardInput, ShmBiBoardType | null, null>(
         'addBiBoard', params, []
      );
   },
   allCollections: () => {
      return rpcClient.call<{}, StructureType[] | null, null>(
         'allCollections', {}, []
      );
   },
   apikeys: () => {
      return rpcClient.call<{}, ApikeyACITType[] | null, null>(
         'apikeys', {}, []
      );
   },
   audioUpload: (formData: FormData) => {
      return rpcClient.callFormData<FileAudioFileType | null>(
         'audioUpload', formData
      );
   },
   authEmail: (params: ArgsAuthEmailInput) => {
      return rpcClient.call<ArgsAuthEmailInput, string | null, null>(
         'authEmail', params, []
      );
   },
   authEmailPrepare: (params: ArgsAuthEmailPrepareInput) => {
      return rpcClient.call<ArgsAuthEmailPrepareInput, AuthEmailPrepareCFIType | null, null>(
         'authEmailPrepare', params, []
      );
   },
   authPhone: (params: ArgsAuthPhoneInput) => {
      return rpcClient.call<ArgsAuthPhoneInput, ShmMsgAuthType | null, null>(
         'authPhone', params, []
      );
   },
   authSoc: (params: ArgsAuthSocInput) => {
      return rpcClient.call<ArgsAuthSocInput, AuthSocSTUType | null, null>(
         'authSoc', params, []
      );
   },
   biBoards: () => {
      return rpcClient.call<{}, ShmBiBoardType[] | null, null>(
         'biBoards', {}, []
      );
   },
   calculateBiBlock: (params: ArgsCalculateBiBlockInput) => {
      return rpcClient.call<ArgsCalculateBiBlockInput, BiBlockValueType | null, null>(
         'calculateBiBlock', params, []
      );
   },
   collection: (params: ArgsCollectionInput) => {
      return rpcClient.call<ArgsCollectionInput, CollectionCDRSType | null, null>(
         'collection', params, []
      );
   },
   compositeTypes: () => {
      return rpcClient.call<{}, CompositeTypeGType | null, null>(
         'compositeTypes', {}, []
      );
   },
   data: (params: ArgsDataInput) => {
      return rpcClient.call<ArgsDataInput, DatumDHLTType | null, null>(
         'data', params, []
      );
   },
   deleteBiBoard: (params: ArgsDeleteBiBoardInput) => {
      return rpcClient.call<ArgsDeleteBiBoardInput, boolean | null, null>(
         'deleteBiBoard', params, []
      );
   },
   deleteData: (params: ArgsDeleteDataInput) => {
      return rpcClient.call<ArgsDeleteDataInput, boolean | null, null>(
         'deleteData', params, []
      );
   },
   deleteExport: (params: ArgsDeleteExportInput) => {
      return rpcClient.call<ArgsDeleteExportInput, boolean | null, null>(
         'deleteExport', params, []
      );
   },
   displayValues: (params: ArgsDisplayValuesInput) => {
      return rpcClient.call<ArgsDisplayValuesInput, DisplayValueDLOTType | null, null>(
         'displayValues', params, []
      );
   },
   documentUpload: (formData: FormData) => {
      return rpcClient.callFormData<FileDocumentFileType | null>(
         'documentUpload', formData
      );
   },
   emptyData: (params: ArgsEmptyDataInput) => {
      return rpcClient.call<ArgsEmptyDataInput, EmptyDatumIMType | null, null>(
         'emptyData', params, []
      );
   },
   filter: (params: ArgsFilterInput) => {
      return rpcClient.call<ArgsFilterInput, StructureType | null, null>(
         'filter', params, []
      );
   },
   generatePaymentLink: (params: ArgsGeneratePaymentLinkInput) => {
      return rpcClient.call<ArgsGeneratePaymentLinkInput, string | null, null>(
         'generatePaymentLink', params, []
      );
   },
   geocode: (params: ArgsGeocodeInput) => {
      return rpcClient.call<ArgsGeocodeInput, GeopointType[] | null, null>(
         'geocode', params, []
      );
   },
   geolocation: (params: ArgsGeolocationInput) => {
      return rpcClient.call<ArgsGeolocationInput, GeolocationILType | null, null>(
         'geolocation', params, []
      );
   },
   hash: (params: ArgsHashInput) => {
      return rpcClient.call<ArgsHashInput, string | null, null>(
         'hash', params, []
      );
   },
   imageUpload: (formData: FormData) => {
      return rpcClient.callFormData<FileImageFileType | null>(
         'imageUpload', formData
      );
   },
   init: () => {
      return rpcClient.call<{}, InitACPTType | null, null>(
         'init', {}, []
      );
   },
   lastBalanceOperations: () => {
      return rpcClient.call<{}, BalancePaymentType[] | null, null>(
         'lastBalanceOperations', {}, []
      );
   },
   listExport: () => {
      return rpcClient.call<{}, ShmExportType[] | null, null>(
         'listExport', {}, []
      );
   },
   makeExport: (params: ArgsMakeExportInput) => {
      return rpcClient.call<ArgsMakeExportInput, boolean | null, null>(
         'makeExport', params, []
      );
   },
   makeStatementExport: (params: ArgsMakeStatementExportInput) => {
      return rpcClient.call<ArgsMakeStatementExportInput, boolean | null, null>(
         'makeStatementExport', params, []
      );
   },
   menu: () => {
      return rpcClient.call<{}, MenuAMType | null, null>(
         'menu', {}, []
      );
   },
   moveUpdate: (params: ArgsMoveUpdateInput) => {
      return rpcClient.call<ArgsMoveUpdateInput, boolean | null, null>(
         'moveUpdate', params, []
      );
   },
   newApiKey: () => {
      return rpcClient.call<{}, string | null, null>(
         'newApiKey', {}, []
      );
   },
   profile: () => {
      return rpcClient.call<{}, ProfileBCDSType | null, null>(
         'profile', {}, []
      );
   },
   removeApiKey: (params: ArgsRemoveApiKeyInput) => {
      return rpcClient.call<ArgsRemoveApiKeyInput, boolean | null, null>(
         'removeApiKey', params, []
      );
   },
   runAction: (params: ArgsRunActionInput) => {
      return rpcClient.call<ArgsRunActionInput, RunActionPType | null, null>(
         'runAction', params, []
      );
   },
   stagesTotal: (params: ArgsStagesTotalInput) => {
      return rpcClient.call<ArgsStagesTotalInput, StagesTotalMType | null, null>(
         'stagesTotal', params, []
      );
   },
   update: (params: ArgsUpdateInput) => {
      return rpcClient.call<ArgsUpdateInput, UpdateDType | null, null>(
         'update', params, []
      );
   },
   updateBiBoard: (params: ArgsUpdateBiBoardInput) => {
      return rpcClient.call<ArgsUpdateBiBoardInput, ShmBiBoardType | null, null>(
         'updateBiBoard', params, []
      );
   },
   updateProfile: (params: ArgsUpdateProfileInput) => {
      return rpcClient.call<ArgsUpdateProfileInput, UpdateProfileIMType | null, null>(
         'updateProfile', params, []
      );
   },
   videoUpload: (formData: FormData) => {
      return rpcClient.callFormData<FileVideoFileType | null>(
         'videoUpload', formData
      );
   },
};
export const compositeTypes = rpc.compositeTypes;
export const geolocation = rpc.geolocation;
export const imageUpload = rpc.imageUpload;
export const videoUpload = rpc.videoUpload;
export const audioUpload = rpc.audioUpload;
export const documentUpload = rpc.documentUpload;
export const authEmail = rpc.authEmail;
export const authEmailPrepare = rpc.authEmailPrepare;
export const authSoc = rpc.authSoc;
export const authPhone = rpc.authPhone;
export const profile = rpc.profile;
export const updateProfile = rpc.updateProfile;
export const init = rpc.init;
export const allCollections = rpc.allCollections;
export const addBiBoard = rpc.addBiBoard;
export const updateBiBoard = rpc.updateBiBoard;
export const deleteBiBoard = rpc.deleteBiBoard;
export const biBoards = rpc.biBoards;
export const calculateBiBlock = rpc.calculateBiBlock;
export const menu = rpc.menu;
export const displayValues = rpc.displayValues;
export const collection = rpc.collection;
export const emptyData = rpc.emptyData;
export const geocode = rpc.geocode;
export const deleteData = rpc.deleteData;
export const hash = rpc.hash;
export const data = rpc.data;
export const deleteExport = rpc.deleteExport;
export const makeExport = rpc.makeExport;
export const makeStatementExport = rpc.makeStatementExport;
export const listExport = rpc.listExport;
export const filter = rpc.filter;
export const apikeys = rpc.apikeys;
export const removeApiKey = rpc.removeApiKey;
export const newApiKey = rpc.newApiKey;
export const moveUpdate = rpc.moveUpdate;
export const update = rpc.update;
export const runAction = rpc.runAction;
export const stagesTotal = rpc.stagesTotal;
export const generatePaymentLink = rpc.generatePaymentLink;
export const lastBalanceOperations = rpc.lastBalanceOperations;

const uuidv4 = (): string => {
   return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, c => {
      const r = crypto.getRandomValues(new Uint8Array(1))[0] & 15;
      const v = c === 'x' ? r : (r & 0x3) | 0x8;
      return v.toString(16);
   });
}

const xorEncrypt = (text: string, key: string) => {
   const textBytes = new TextEncoder().encode(text);
   const keyBytes = new TextEncoder().encode(key);

   const result = new Uint8Array(textBytes.length);
   for (let i = 0; i < textBytes.length; i++) {
      result[i] = textBytes[i] ^ keyBytes[i % keyBytes.length];
   }


   return btoa(String.fromCharCode(...Array.from(result)));
}

const xorDecrypt = (encodedText: string, key: string) => {
   const binaryString = atob(encodedText);
   const textBytes = new Uint8Array(binaryString.length);
   for (let i = 0; i < binaryString.length; i++) {
      textBytes[i] = binaryString.charCodeAt(i);
   }

   const keyBytes = new TextEncoder().encode(key);
   const result = new Uint8Array(textBytes.length);

   for (let i = 0; i < textBytes.length; i++) {
      result[i] = textBytes[i] ^ keyBytes[i % keyBytes.length];
   }

   return new TextDecoder().decode(result);
}


export class rpcClient {
   private static endpoints: string[] = [];
   private static readonly ENDPOINT_INDEX_KEY = 'rpcClient_endpointIndex';
   private static currentEndpointIndex: number = 0;
   private static initialized: boolean = false;
   private static headers: Record<string, string> = {};
   private static tokenGetter: (() => string | null) | null = null;
   private static tokenGetterAsync: (() => Promise<string | null>) | null = null;
   private static unauthorizedHandler: (() => void) | null = null;
   private static networkErrorHandler: (() => void) | null = null;
   private static toastHandler: ((message: string) => void) | null = null;
   private static storage: { save: (key: string, value: string) => Promise<void>; get: (key: string) => Promise<string | null> } | null = null;


   private static defaultExtensions: DefaultExtensionsType = [];

   public static setDefaultExtensions(extensions: DefaultExtensionsType): void {
      this.defaultExtensions = extensions;
   }

   private static abortControllerTimeout: number = 30000;

   public static setAbortControllerTimeout(timeout: number): void {
      this.abortControllerTimeout = timeout;
   }

   public static setStorage(storage: { save: (key: string, value: string) => Promise<void>; get: (key: string) => Promise<string | null> }): void {
      this.storage = storage;
   }

   private static useEncrypt: boolean = false;

   public static setUseEncrypt(useEncrypt: boolean): void {
      this.useEncrypt = useEncrypt;
   }

   public static setNetworkErrorHandler(handler: () => void): void {
      this.networkErrorHandler = handler;
   }

   public static async init(): Promise<void> {
      if (this.initialized) return;
      if (this.storage) {
         try {
            const savedIndex = await this.storage.get(this.ENDPOINT_INDEX_KEY);
            if (savedIndex !== null) {
               const index = parseInt(savedIndex, 10);
               if (!isNaN(index) && index >= 0 && index < this.endpoints.length) {
                  this.currentEndpointIndex = index;
               }
            }
         } catch (error) {
            console.log('⚠️ Ошибка при загрузке индекса endpoint:', error);
         }
      } else {
         this.currentEndpointIndex = 0;
      }
      this.initialized = true;
   }

   private static async saveEndpointIndex(): Promise<void> {
      if (!this.storage) return;
      try {
         await this.storage.save(this.ENDPOINT_INDEX_KEY, this.currentEndpointIndex.toString());
      } catch (error) {
         console.log('⚠️ Ошибка при сохранении индекса endpoint:', error);
      }
   }

   private static switchToNextEndpoint(): void {
      if (this.endpoints.length <= 1) return;
      this.currentEndpointIndex = (this.currentEndpointIndex + 1) % this.endpoints.length;
      this.saveEndpointIndex();
   }

   private static async waitForEndpoints(): Promise<void> {
      if (this.endpoints.length > 0) return;

      // Ждем 1 секунду и проверяем еще раз
      await new Promise(resolve => setTimeout(resolve, 1000));

      if (this.endpoints.length === 0) {
         throw new Error('Endpoints are not set');
      }
   }

   private static getCurrentEndpoint(): string {
      if (this.endpoints.length === 0) throw new Error('Endpoints are not set');
      return this.endpoints[this.currentEndpointIndex];
   }

   public static getCurrentEndpointDomain(): string {

      let http = this.getCurrentEndpoint().split('://')[0];
      let path = this.getCurrentEndpoint().split('://')[1];

      let firstPart = path.split('/')[0];

      return `${http}://${firstPart}`;
   }

   private static isNetworkError(error: any): boolean {
      return (
         error.name === 'AbortError' ||
         error.name === 'TimeoutError' ||
         error.name === 'TypeError' ||
         error.message?.includes('Network request failed') ||
         error.message?.includes('Failed to fetch') ||
         error.message?.includes('NetworkError')
      );
   }

   public static setToken(getter: () => string | null): void {
      this.tokenGetter = getter;
   }

   public static setTokenAsync(getter: () => Promise<string | null>): void {
      this.tokenGetterAsync = getter;
   }

   public static setUnauthorizedHandler(handler: () => void): void {
      this.unauthorizedHandler = handler;
   }

   public static setToast(handler: (message: string) => void): void {
      this.toastHandler = handler;
   }

   public static setEndpoints(urls: string[]): void {
      this.endpoints = urls;
      this.currentEndpointIndex = 0;
      this.initialized = false;
   }

   public static getToken(): string | null {
      if (this.tokenGetter) return this.tokenGetter();
      return null;
   }

   public static async getTokenAsync(): Promise<string | null> {
      // Приоритет у синхронной функции
      if (this.tokenGetter) {
         return this.tokenGetter();
      }
      // Если синхронной нет, используем асинхронную
      if (this.tokenGetterAsync) {
         return await this.tokenGetterAsync();
      }
      return null;
   }

   public static setHeaders(headers: Record<string, string>): void {
      this.headers = { ...this.headers, ...headers };
   }

   private static handleError(error: any): void {
      if (error?.type === 'UNAUTHORIZED' || error?.type === 'UNAUTHENTICATED') {
         if (this.unauthorizedHandler) {
            this.unauthorizedHandler();
         }
      }
      if (error?.message) {
         if (this.toastHandler) {
            this.toastHandler(error.message);
         }
      }
   }

   public static async callFormData<R>(method: string, formData: FormData): Promise<R> {
      await this.waitForEndpoints();
      const endpoint = this.getCurrentEndpoint();

      formData.append('method', method);

      let _token = await this.getTokenAsync();
      if (_token) {
         formData.append('token', _token);
      }

      formData.append('timezone', Intl.DateTimeFormat().resolvedOptions().timeZone);

      const context = this.useEncrypt ? uuidv4() : undefined;

      if (this.useEncrypt && context) {
         formData.append('context', context);
      }


      const headers = { ...this.headers };
      delete headers['Content-Type'];

      const controller = new AbortController();
      const timeoutId = setTimeout(() => {
         controller.abort();
      }, this.abortControllerTimeout);

      return fetch(endpoint, { method: 'POST', headers, body: formData, signal: controller.signal })
         .then(res => res.json())
         .then((json: RpcResponse<R>) => {
            clearTimeout(timeoutId);

            if (this.useEncrypt && context) {

               if (json.result) {
                  json.result = JSON.parse(xorDecrypt(json.result as string, context));
               }
               if (json.extensions) {
                  json.extensions = JSON.parse(xorDecrypt(json.extensions as string, context));
               }
            }


            if (json?.error) {
               this.handleError(json.error);
               throw json.error;
            }
            this.saveEndpointIndex();
            return json.result as R;
         })
         .catch(err => {
            clearTimeout(timeoutId);
            if (this.isNetworkError(err)) {

               if (this.networkErrorHandler) {
                  this.networkErrorHandler();
               }

               this.switchToNextEndpoint();
            }
            throw err;
         });
   }

   public static async call<P, R, E>(method: string, params?: P, extensions?: Array<string>): Promise<RpcResponse<R, E>> {
      await this.waitForEndpoints();
      const endpoint = this.getCurrentEndpoint();


      const context = this.useEncrypt ? uuidv4() : undefined;


      let _extensions = extensions != undefined ? extensions : this.defaultExtensions;


      const token = await this.getTokenAsync();
      const body = {
         method, extensions: _extensions, context: context, token: token,
         params: params ? context ? xorEncrypt(JSON.stringify(params ?? {}), context) : params : undefined,
         id: Date.now().toString()
      };

      console.log('🚀🚀🚀 method: ', method, ' RPC Endpoint: ', endpoint);
      console.log('🚀🚀🚀 method: ', method, ' RPC Body: ', JSON.stringify(body));


      const controller = new AbortController();
      const timeoutId = setTimeout(() => {
         controller.abort();
      }, this.abortControllerTimeout);

      return fetch(endpoint, {
         method: 'POST', headers: {
            'Content-Type': 'application/json',
            'timezone': Intl.DateTimeFormat().resolvedOptions().timeZone,
            ...this.headers
         }, body: JSON.stringify(body),
         signal: controller.signal
      })
         .then(res => res.json())
         .then((json: RpcResponse<R>) => {
            clearTimeout(timeoutId);

            if (this.useEncrypt && context) {

               if (json.result) {
                  json.result = JSON.parse(xorDecrypt(json.result as string, context));
               }
               if (json.extensions) {
                  json.extensions = JSON.parse(xorDecrypt(json.extensions as string, context));
               }
            }

            console.log('🍪🍪🍪 method: ', method, ' RPC Response: ', JSON.stringify(json));
            if (json?.error) {
               this.handleError(json.error);
               throw json.error;
            }
            this.saveEndpointIndex();

            if (json?.extensions) {
               ExtensionsStore.addToStore(json.extensions);
            }

            return json as RpcResponse<R, E>;
         })
         .catch(err => {
            clearTimeout(timeoutId);
            if (this.isNetworkError(err)) {
               if (this.networkErrorHandler) {
                  this.networkErrorHandler();
               }
               this.switchToNextEndpoint();
            }
            console.log('🛑🛑🛑 RPC Error: ', JSON.stringify(body));
            throw err;
         });
   }
}




type DefaultExtensionsType = ("")[];

type ExtensionsStoreType = {};

type ExtensionsStoreInputType = {};

export class ExtensionsStore {

   private static storage: { save: (key: string, value: string) => Promise<void>; get: (key: string) => Promise<string | null> } | null = null;


   public static setStorage(storage: { save: (key: string, value: string) => Promise<void>; get: (key: string) => Promise<string | null> }): void {
      this.storage = storage;
   }

   public static async loadFromStorage(): Promise<void> {
      if (this.storage) {
         const extensionsStore = await this.storage.get("extensionsStore");
         if (extensionsStore) {
            try {
               let _extensionsStore: ExtensionsStoreType = JSON.parse(extensionsStore);

               map(_extensionsStore, (value: any, key: keyof ExtensionsStoreType) => {
                  if (value) {

                     if (this.store?.[key]) {
                        this.store[key] = {
                           ...this.store[key],
                           ...value
                        };

                     } else {
                        this.store[key] = value;
                     }

                  }
               });

            } catch (error) {
               console.error("⚠️ Ошибка при загрузке extensionsStore из storage:", error);
            }

         }
      }
   }

   private static saveToStorage = debounce(() => {

      if (this.storage) {
         this.storage.save("extensionsStore", JSON.stringify(this.store));
      }


   }, 1000);

   private static store: ExtensionsStoreType = {};

   public static addToStore(value: ExtensionsStoreInputType) {




      this.saveToStorage();
   }






}