import { Injectable } from '@angular/core';
import { StorageService } from './storage.service';
import { HttpClient, HttpHeaders, HttpEventType } from '@angular/common/http';
import { LoginUserRespose, UserForm, UserSession } from '../models/user.model';
import { environment } from 'src/environments/environment';
import { HttpService } from './http.service';
import { BehaviorSubject } from 'rxjs';
import { AuthConnstants } from '../config/auth-constants';
import { AlertController } from '@ionic/angular';
import { SessionStore } from '../store/session.service';
import { AESEncrypt } from '../services/aesencrypt.service';
import { CookieService } from 'ngx-cookie-service';
import { WsChatService } from 'src/app/services/chat/ws-chat.service';
import { Router } from '@angular/router';
import { NfService } from 'src/app/services/chat/nf.service'
import { MessageService } from 'src/app/services/chat/message.service';
import { ProcessesService } from 'src/app/services/processes.service';
import { AttachmentsService } from 'src/app/services/attachments.service';
import { RoomService } from './chat/room.service';
import { Storage } from '@ionic/storage';
import { InitialsService } from './functions/initials.service';
import { PermissionService } from './permission.service';

@Injectable({
  providedIn: 'root'
})
export class AuthService {
  userData$ = new BehaviorSubject<any>('');
  userId$ = new BehaviorSubject<any>('');
  headers: HttpHeaders;
  public ValidatedUser: UserSession;
  public wsValidatedUserChat:any;
  public ValidatedUserChat:any = {}
  public isWsAuthenticated: boolean = false;
  opts:any;

  constructor(
    private http: HttpClient,
    private httpService: HttpService,
    private storageService:StorageService,
    public alertController: AlertController,
    private aesencrypt: AESEncrypt,
    private cookieService: CookieService,
    private WsChatService: WsChatService,
    private router: Router,
    private NfService:NfService,
    private processesService: ProcessesService,
    private AttachmentsService: AttachmentsService,
    private storage: Storage,
    private initialsService: InitialsService,
    public p: PermissionService, ) {

      this.headers = new HttpHeaders();

      if (SessionStore.exist) {
        this.ValidatedUser = SessionStore.user

        if(this.p.userPermission(this.p.permissionList.Chat.access) == true ){
          this.loginToChatWs()
        }
      }

      if (localStorage.getItem("userChat") != null) {
        this.ValidatedUserChat = JSON.parse(localStorage.getItem('userChat'));
      }

    }

    async login(user: UserForm, {saveSession = true}): Promise<LoginUserRespose> {
      user.BasicAuthKey = 'Basic ' + btoa(user.username + ':' + this.aesencrypt.encrypt(user.password,user.username ));

      this.headers = this.headers.set('Authorization', user.BasicAuthKey);
      this.opts = {
        headers: this.headers,
      }

      let response: any;

      try {
        response = await this.http.post<LoginUserRespose>(environment.apiURL + "UserAuthentication/Login", '', this.opts).toPromise();
        console.log(response);

        if(saveSession) {
          this.SetSession(response, user)
        }
      } catch (error) {

      } finally {
        return response
      }

    }

    SetSession(response: LoginUserRespose, user:UserForm) {
      const session: UserSession = Object.assign(SessionStore.user, response)

      if (response) {
        if( session.RoleID == 100000014) {
          session.Profile = 'PR'
        } else if(session.RoleID == 100000011) {
          session.Profile = 'MDGPR'
        } else if(session.RoleID == 99999872) {
          session.Profile = 'Consultant'
        }
        else if(session.RoleID == 99999873) {
          session.Profile = 'Assistant'
        }
        else if(session.RoleID == 99999874) {
          session.Profile = 'Department boss'
        }
        else if(session.RoleID == 99999875) {
          session.Profile = 'Director'
        }
        else if(session.RoleID == 99999876) {
          session.Profile = 'Deputy Director'
        }
        else if(session.RoleID == 99999885) {
          session.Profile = 'Secretariat'
        }
        else if(session.RoleID == 99999886) {
          session.Profile = 'General secretary'
        }

        session.Password = user.password
        session.RochetChatUser = user.username.split('@')[0]

        session.BasicAuthKey = user.BasicAuthKey

        SessionStore.reset(session)
        this.ValidatedUser = SessionStore.user;
        this.storageService.store(AuthConnstants.USER, response);

        return true;
      }
    }

    //Login to rocketChat server2
    //user: UserForm
    async loginChat() {

      const expirationMinutes = 30;
      let date = new Date().getTime();
      let expirationDate = new Date(new Date().getTime() + expirationMinutes*60*1000);

      let postData = {
        "user": SessionStore.user.RochetChatUser,
        "password": SessionStore.user.Password,
      }

      let responseChat = await this.httpService.post('login', postData).toPromise();

      if(responseChat) {

        this.ValidatedUserChat = responseChat;
        localStorage.setItem('userChat', JSON.stringify(responseChat));
        this.storageService.store(AuthConnstants.AUTH, responseChat);
      }
      else{
        console.log('Network error');
        this.presentAlert('Network error');
      }

      this.autoLoginChat(expirationDate.getTime() - date);
    }

    async autoLoginChat(expirationDate:number) {
      setTimeout(()=>{
        this.loginChat();
      }, expirationDate)
    }

    loginToChatWs() {
      setTimeout(()=>{

        this.WsChatService.connect();
        this.WsChatService.login().then((message: any) => {

          SessionStore.user.RochetChatUserId = message.result.id
          SessionStore.save()

          // console.log('user session', SessionStore.user)


          this.WsChatService.setStatus('online')

        }).catch((message) => {
          console.log('rocket chat login failed', message)
        })


        // before sending a message with a attachment
        this.NfService.beforeSendAttachment = async (message: MessageService, room?: RoomService) => {

          if(message.hasFile) {
            if(message.file.type != 'application/webtrix') {
              const formData = message.temporaryData

              try {
                let guid: any = await this.AttachmentsService.uploadFile(formData).toPromise()
                message.file.guid = guid.path

                console.log('========================================',guid)
                // await this.storage.set(guid.path, message.file.image_url).then(() => {
                //   console.log('add picture to chat IMAGE SAVED')
                //   // message.getFileFromDb()
                // });

                message.downloadFileMsg()

                return true
              } catch(e) {
                console.log('failed to upload to server', e)
                return false
              }

            } else {
              try {
                const res = message.temporaryData
                let url = await this.processesService.GetDocumentUrl(res.data.selected.Id, res.data.selected.ApplicationType).toPromise();
                let url_no_options: string = url.replace("webTRIX.Viewer","webTRIX.Viewer.Branch1");
                message.attachments[0].title_link = url_no_options
                message.attachments[0].message_link = url_no_options
                return true

              } catch(e) {
                console.log(e)
                return false
              }
            }
          }

          return false
        }

        this.NfService.downloadFileMsg = async (message: MessageService, room?: RoomService) => {

          // console.log('FILE TYPE', message.file.type)
          let downloadFile = "";
          if (message.file.type == "application/img") {
            const event: any = await this.AttachmentsService.downloadFile(message.file.guid).toPromise();

            console.log('FILE TYPE 22', message.file.guid)

            if (event.type === HttpEventType.DownloadProgress) {
              //this.downloadProgess = Math.round((100 * event.loaded) / event.total);
              // console.log('FILE TYPE 33', message.file.type)
              return true
            } else if (event.type === HttpEventType.Response) {
              downloadFile = 'data:image/jpeg;base64,' + btoa(new Uint8Array(event.body).reduce((data, byte) => data + String.fromCharCode(byte), ''));

              message.file = {
                guid: message.file.guid,
                image_url: downloadFile,
                type: message.file.type
              }

              await this.storage.set(message.file.guid, downloadFile).then(() => {
                // console.log('IMAGE SAVED')
              });
              return true
            }
            return false
          }
        };

      }, 1)
    }

    autologout(expirationDate:number) {
      setTimeout(()=>{
        this.logout();
      }, expirationDate)
    }

    logout() {

      this.ValidatedUser = null;
      localStorage.removeItem('userChat');

      SessionStore.setInativity(false)
      SessionStore.setUrlBeforeInactivity(this.router.url)
      setTimeout(() => {
        this.router.navigateByUrl('/', { replaceUrl: true });
      }, 100)

    }

    //Get user data from RocketChat | global object
    getUserData() {
      this.storageService.get(AuthConnstants.AUTH).then(res=>{
        this.userData$.next(res);
      });
    }

    logoutChat() {
      //this.storageService.clear();
      /* this.storageService.removeStorageItem(AuthConnstants.AUTH).then(res =>{
        this.userData$.next('');
        this.router.navigate(['']);
      }) */

    }
    async presentAlert(message: string) {
      const alert = await this.alertController.create({
        cssClass: 'my-custom-class',
        header: 'Mensagem do sistema',
        message: message,
        buttons: ['OK']
      });

      await alert.present();
    }
}