// user.js
// Copyright (C) 2024 DTP Technologies, LLC
// All Rights Reserved

'use strict';

import { SiteController, SiteError } from '../../lib/site-lib.js';
import {
  populateUserId,
} from './lib/populators.js';

export default class UserController extends SiteController {

  static get name ( ) { return 'UserController'; }
  static get slug ( ) { return 'user'; }

  constructor (dtp) {
    super(dtp, UserController);
  }

  async start ( ) {
    const { dtp } = this;
    const {
      csrfToken: csrfTokenService,
      limiter: limiterService,
      otpAuth: otpAuthService,
      session: sessionService,
    } = dtp.services;

    const upload = this.createMulter(UserController.slug, {
      limits: {
        fileSize: 1024 * 1000 * 15,
      },
    });

    const router = this.createRouter('/user');

    const authCheck = sessionService.authCheckMiddleware({ requireLogin: true });

    const otpSetup = otpAuthService.middleware('Account', {
      adminRequired: false,
      otpRequired: true,
      otpRedirectURL: async (req) => { return `/user/${req.user._id}`; },
    });
    const otpMiddleware = otpAuthService.middleware('Account', {
      adminRequired: false,
      otpRequired: false,
      otpRedirectURL: async (req) => { return `/user/${req.user._id}`; },
    });

    router.use(
      async (req, res, next) => {
        try {
          res.locals.currentView = 'user';
          res.locals.pageTitle = 'Member Account';
          return next();
        } catch (error) {
          return next(error);
        }
      },
    );

    async function checkProfileOwner (req, res, next) {
      if (!req.user || !req.user._id.equals(res.locals.userProfile._id)) {
        return next(new SiteError(403, 'This is not your user account or profile'));
      }
      return next();
    }

    router.param('userId', populateUserId(this));

    router.post(
      '/:userId/profile-photo',
      limiterService.create(limiterService.config.user.postProfilePhoto),
      checkProfileOwner,
      upload.single('imageFile'),
      this.postProfilePhoto.bind(this),
    );
    router.post(
      '/:userId/settings',
      limiterService.create(limiterService.config.user.postUpdateSettings),
      checkProfileOwner,
      upload.none(),
      csrfTokenService.middleware({ name: 'account-settings' }),
      this.postUpdateSettings.bind(this),
    );
    router.post(
      '/:userId/block',
      limiterService.create(limiterService.config.user.postBlockUser),
      upload.none(),
      this.postBlockUser.bind(this),
    );

    if (process.env.DTP_MEMBER_SIGNUP === 'enabled') {
      router.post('/',
        limiterService.create(limiterService.config.user.postCreateUser),
        csrfTokenService.middleware({ name: 'signup' }),
        this.postCreateUser.bind(this),
      );
    }

    router.get(
      '/resend-welcome-email',
      authCheck,
      limiterService.create(limiterService.config.user.getResendWelcomeEmail),
      this.getResendWelcomeEmail.bind(this),
    );

    router.get(
      '/autocomplete',
      authCheck,
      this.getAutocomplete.bind(this),
    );

    router.get(
      '/resolve',
      authCheck,
      this.getResolveUsername.bind(this),
    );

    router.get(
      '/:userId/otp-setup',
      limiterService.create(limiterService.config.user.getOtpSetup),
      otpSetup,
      this.getOtpSetup.bind(this),
    );
    router.get(
      '/:userId/otp-disable',
      limiterService.create(limiterService.config.user.getOtpDisable),
      authCheck,
      this.getOtpDisable.bind(this),
    );

    router.get(
      '/:userId/settings',
      limiterService.create(limiterService.config.user.getSettings),
      otpMiddleware,
      checkProfileOwner,
      this.getUserSettingsView.bind(this),
    );

    router.get(
      '/:userId/stripe/customer-portal',
      limiterService.create(limiterService.config.user.getStripeCustomerPortal),
      checkProfileOwner,
      this.getStripeCustomerPortal.bind(this),
    );

    router.get(
      '/:userId/block',
      limiterService.create(limiterService.config.user.getBlockView),
      otpMiddleware,
      checkProfileOwner,
      this.getBlockView.bind(this),
    );

    router.get(
      '/:userId',
      limiterService.create(limiterService.config.user.getUserProfile),
      otpMiddleware,
      checkProfileOwner,
      this.getUserView.bind(this),
    );

    router.delete(
      '/:userId/profile-photo',
      limiterService.create(limiterService.config.user.deleteProfilePhoto),
      checkProfileOwner,
      this.deleteProfilePhoto.bind(this),
    );
    router.delete(
      '/:userId/block/:blockedUserId',
      limiterService.create(limiterService.config.user.deleteBlockedUser),
      checkProfileOwner,
      this.deleteBlockedUser.bind(this),
    );
  }

  async postCreateUser (req, res, next) {
    const { user: userService } = this.dtp.services;
    try {
      // If the user session doesn't have a signup captcha, then they did not
      // request the signup form and are most likely an automated bot
      if (!req.session.dtp || !req.session.dtp.captcha || !req.session.dtp.captcha.signup) {
        throw new SiteError(403, 'Invalid session state');
      }

      // Reject the request if the captcha text entered does not exactly match
      // the text generated
      if (req.body.captcha !== req.session.dtp.captcha.signup) {
        throw new SiteError(403, 'The captcha text entered does not match');
      }

      // The captcha matches. Create the user account and sign them in.
      res.locals.user = await userService.create(req.body);
      req.login(res.locals.user, (error) => {
        if (error) {
          return next(error);
        }
        res.redirect('/'); // send them to the home page
      });
    } catch (error) {
      this.log.error('failed to create new user', { error });
      return next(error);
    }
  }

  async postProfilePhoto (req, res) {
    const { user: userService } = this.dtp.services;
    try {
      const displayList = this.createDisplayList('profile-photo');
      this.log.info('updating user profile photo', { user: req.user._id, file: req.file });
      await userService.updatePhoto(req.user, req.file);
      displayList.reloadView();
      res.status(200).json({ success: true, displayList });
    } catch (error) {
      this.log.error('failed to update profile photo', { error });
      return res.status(error.statusCode || 500).json({
        success: false,
        message: error.message,
      });
    }
  }

  async postUpdateSettings (req, res) {
    const { user: userService } = this.dtp.services;
    try {
      const displayList = this.createDisplayList('app-settings');

      await userService.setUserSettings(req.user, req.body);
      this.log.info('user settings updated', {
        username: req.user.username,
        newUsername: req.body.username,
      });

      if (req.user.ui.theme !== req.body.uiTheme) {
        displayList.reloadView();
      } else {
        displayList.showNotification(
          'Member account settings updated successfully.',
          'success',
          'bottom-center',
          6000,
        );
      }
      res.status(200).json({ success: true, displayList });
    } catch (error) {
      this.log.error('failed to update account settings', { error });
      return res.status(error.statusCode || 500).json({
        success: false,
        message: error.message,
      });
    }
  }

  async postBlockUser (req, res) {
    const { user: userService } = this.dtp.services;
    try {
      const displayList = this.createDisplayList('block-user');
      await userService.block(req.user, req.body.userId);
      displayList.removeElement(`.streamray-status[data-author-id="${req.body.userId}"]`);
      displayList.showNotification(
        `Member blocked successfully`,
        'success',
        'bottom-left',
        3000,
      );
      return res.status(200).json({ success: true, displayList });
    } catch (error) {
      this.log.error('failed to block user', { error });
      return res.status(error.statusCode || 500).json({
        success: false,
        message: error.message,
      });
    }
  }

  async getResendWelcomeEmail (req, res) {
    const { user: userService } = this.dtp.services;
    try {
      const displayList = this.createDisplayList('welcome-email');
      await userService.sendWelcomeEmail(req.user);
      displayList.showNotification(
        'Welcome email sent (check spam folder)',
        'success',
        'bottom-center',
        4000,
      );
      res.status(200).json({ success: true, displayList });
    } catch (error) {
      this.log.error('failed to resend welcome email', { error });
      res.status(error.statusCode || 500).json({
        success: false,
        message: error.message,
      });
    }
  }

  async getAutocomplete (req, res) {
    const { user: userService } = this.dtp.services;
    try {
      if (!req.query || !req.query.q || (req.query.q.length === 0)) {
        throw new SiteError(406, "Username must not be empty");
      }
      const strings = await userService.autocomplete({ skip: 0, cpp: 8 }, req.query.q);
      res.status(200).json({ success: true, strings });
    } catch (error) {
      this.log.error('failed to autocomplete username', { error });
      return res.status(error.statusCode || 500).json({
        success: false,
        message: error.message,
      });
    }
  }

  async getResolveUsername (req, res) {
    const { user: userService } = this.dtp.services;
    try {
      const user = await userService.lookup(req.query.q);
      res.status(200).json({ success: true, user });
    } catch (error) {
      this.log.error('failed to resolve username', { error });
      return res.status(error.statusCode || 500).json({
        success: false,
        message: error.message,
      });
    }
  }

  async getOtpSetup (req, res) {
    res.render('user/otp-setup-complete');
  }

  async getOtpDisable (req, res) {
    const { otpAuth: otpAuthService } = this.dtp.services;
    try {
      await otpAuthService.destroyOtpSession(req, 'Account');
      await otpAuthService.removeForUser(req.user, 'Account');
      res.render('user/otp-disabled');
    } catch (error) {
      this.log.error('failed to disable OTP service for Account', { error });
      res.status(error.statusCode || 500).json({
        success: false,
        message: error.message,
      });
    }
  }

  async getStripeCustomerPortal (req, res, next) {
    const { stripe: stripeService } = this.dtp.services;
    /*
     * Stripe Integration
     */
    try {
      const session = await stripeService.createCustomerPortalSession(req.user);
      return res.redirect(303, session.url);
    } catch (error) {
      this.log.error('failed to provide Stripe Customer Portal session', { error });
      return next(error);
    }
  }

  async getUserSettingsView (req, res, next) {
    const {
      csrfToken: csrfTokenService,
      otpAuth: otpAuthService,
    } = this.dtp.services;
    try {
      res.locals.csrfTokenAccountSettings = await csrfTokenService.create(req, {
        name: 'account-settings',
        expiresMinutes: 20,
      });
      res.locals.hasOtpAccount = await otpAuthService.isUserProtected(req.user, 'Account');
      res.render('user/settings');
    } catch (error) {
      this.log.error('failed to produce user settings view', { error });
      return next(error);
    }
  }

  async getBlockView (req, res, next) {
    const { user: userService } = this.dtp.services;
    try {
      res.locals.blockedUsers = await userService.getBlockedUsers(req.user._id);
      res.render('user/block-list');
    } catch (error) {
      this.log.error('failed to present block list view', { error });
      return next(error);
    }
  }

  async getUserView (req, res, next) {
    const { handcash: handcashService } = this.dtp.services;
    /*
     * HandCash Integration
     */
    try {
      res.locals.handcash = {
        connectUrl: handcashService.getRedirectionUrl(req.user),
      };
      res.locals.handcash.profile = await handcashService.getUserProfile(req.user);
    } catch (error) {
      // this.log.debug('authenticated user does not have a HandCash wallet connection', { error });
      // fall through
    }

    try {
      res.render('user/profile');
    } catch (error) {
      this.log.error('failed to produce user profile view', { error });
      return next(error);
    }
  }

  async deleteProfilePhoto (req, res) {
    const { user: userService } = this.dtp.services;
    try {
      const displayList = this.createDisplayList('app-settings');
      await userService.removePhoto(req.user);
      displayList.reloadView();
      res.status(200).json({ success: true, displayList });
    } catch (error) {
      this.log.error('failed to remove profile photo', { error });
      return res.status(error.statusCode || 500).json({
        success: false,
        message: error.message,
      });
    }
  }

  async deleteBlockedUser (req, res) {
    const { user: userService } = this.dtp.services;
    try {
      const displayList = this.createDisplayList('block-user');
      await userService.unblock(req.user, req.params.blockedUserId);
      displayList.removeElement(`li[data-user-id="${req.params.blockedUserId}"]`);
      displayList.showNotification(
        `Member un-blocked successfully`,
        'success',
        'bottom-left',
        3000,
      );
      return res.status(200).json({ success: true, displayList });
    } catch (error) {
      this.log.error('failed to un-block user', { error });
      return res.status(error.statusCode || 500).json({
        success: false,
        message: error.message,
      });
    }
  }
}