/*****************************************************************************\
|  █████  █████ ██    █ █████ █████   ████  ██      ████   █████ █████  ███ ® |
| ██      █     ███   █ █     ██  ██ ██  ██ ██      ██  █ ██   ██  █   █      |
| ██  ███ ████  █ ██  █ ████  █████  ██████ ██      ████   █   █   █    ██    |
| ██   ██ █     █  ██ █ █     ██  ██ ██  ██ ██      ██  █ ██   ██  █      █   |
|  █████  █████ █   ███ █████ ██  ██ ██  ██ █████   ████   █████   █   ███    |
|                                                                             |
| General Bots Copyright (c) pragmatismo.cloud. All rights reserved.         |
| Licensed under the AGPL-3.0.                                                |
|                                                                             |
| According to our dual licensing model, this program can be used either      |
| under the terms of the GNU Affero General Public License, version 3,        |
| or under a proprietary license.                                             |
|                                                                             |
| The texts of the GNU Affero General Public License with an additional       |
| permission and of our proprietary license can be found at and               |
| in the LICENSE file you have received along with this program.              |
|                                                                             |
| This program is distributed in the hope that it will be useful,             |
| but WITHOUT ANY WARRANTY without even the implied warranty of               |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the                |
| GNU Affero General Public License for more details.                         |
|                                                                             |
| "General Bots" is a registered trademark of pragmatismo.cloud.             |
| The licensing of the program under the AGPLv3 does not imply a              |
| trademark license. Therefore any rights, title and interest in              |
| our trademarks remain entirely with us.                                     |
|                                                                             |
\*****************************************************************************/

/**
 * @fileoverview General Bots server core.
 */

'use strict';

import crypto from 'crypto';
import urlJoin from 'url-join';
import { WaterfallDialog } from 'botbuilder-dialogs';
import { GBMinInstance, IGBDialog } from 'botlib';
import { GBDeployer } from '../../core.gbapp/services/GBDeployer.js';
import { GBImporter } from '../../core.gbapp/services/GBImporterService.js';
import { Messages } from '../strings.js';
import { GBAdminService } from '../services/GBAdminService.js';
import { CollectionUtil } from 'pragmatismo-io-framework';
import { SecService } from '../../security.gbapp/services/SecService.js';
import { GBConfigService } from '../../core.gbapp/services/GBConfigService.js';

/**
 * Dialogs for administration tasks.
 */
export class AdminDialog extends IGBDialog {
  public static isIntentYes(locale, utterance) {
    return utterance.toLowerCase().match(Messages[locale].affirmative_sentences);
  }

  public static isIntentNo(locale, utterance) {
    return utterance.toLowerCase().match(Messages[locale].negative_sentences);
  }

  /**
   * Setup dialogs flows and define services call.
   *
   * @param bot The bot adapter.
   * @param min The minimal bot instance data.
   */
  public static setup(min: GBMinInstance) {
    // Setup services.

    const importer = new GBImporter(min.core);
    const deployer = new GBDeployer(min.core, importer);

    AdminDialog.setupSecurityDialogs(min);

    min.dialogs.add(
      new WaterfallDialog('/admin-auth', [
        async step => {
          if (step.context.activity.channelId !== 'msteams' && process.env.ENABLE_AUTH) {
            return await step.beginDialog('/auth');
          } else {
            return await step.next(step.options);
          }
        },
        async step => {
          const locale = step.context.activity.locale;
          const prompt = Messages[locale].authenticate;

          return await min.conversationalService.prompt(min, step, prompt);
        },
        async step => {
          const locale = step.context.activity.locale;
          const sensitive = step.context.activity['originalText'];

          if (sensitive === min.instance.adminPass) {
            await min.conversationalService.sendText(min, step, Messages[locale].welcome);

            return await step.endDialog(true);
          } else {
            await min.conversationalService.sendText(min, step, Messages[locale].wrong_password);
            return await step.replaceDialog('/admin-auth');
          }
        }
      ])
    );

    min.dialogs.add(
      new WaterfallDialog('/admin', [
        async step => {
          if (step.context.activity.channelId !== 'msteams' && process.env.ENABLE_AUTH) {
            return await step.beginDialog('/auth');
          } else {
            return await step.next(step.options);
          }
        },
        async step => {
          const locale = step.context.activity.locale;
          const prompt = Messages[locale].authenticate;

          return await min.conversationalService.prompt(min, step, prompt);
        },
        async step => {
          const locale = step.context.activity.locale;
          const sensitive = step.context.activity['originalText'];

          if (sensitive === min.instance.adminPass) {
            await min.conversationalService.sendText(min, step, Messages[locale].welcome);

            return await min.conversationalService.prompt(min, step, Messages[locale].which_task);
          } else {
            await min.conversationalService.sendText(min, step, Messages[locale].wrong_password);

            return await step.endDialog();
          }
        },
        async step => {
          const locale: string = step.context.activity.locale;
          // tslint:disable-next-line:no-unsafe-any
          const text: string = step.context.activity['originalText'];
          const cmdName = text.split(' ')[0];

          await min.conversationalService.sendText(min, step, Messages[locale].working(cmdName));
          let unknownCommand = false;

          try {
            if (text === 'quit') {
              return await step.replaceDialog('/');
            } else if (cmdName === 'setupSecurity') {
              return await step.beginDialog('/setupSecurity');
            } else {
              unknownCommand = true;
            }

            if (unknownCommand) {
              await min.conversationalService.sendText(min, step, Messages[locale].unknown_command);
            } else {
              await min.conversationalService.sendText(min, step, Messages[locale].finished_working);
            }
          } catch (error) {
            await min.conversationalService.sendText(min, step, error.message ? error.message : error);
          }
          await step.replaceDialog('/ask', { isReturning: true });
        }
      ])
    );

    min.dialogs.add(
      new WaterfallDialog('/install', [
        async step => {
          if (step.context.activity.channelId !== 'msteams' && process.env.ENABLE_AUTH) {
            return await step.beginDialog('/auth');
          } else {
            return await step.next(step.options);
          }
        },
        async step => {
          step.activeDialog.state.options.args = (step.options as any).args;
          if (step.activeDialog.state.options.confirm) {
            return await step.next('sim');
          } else {
            const locale = step.context.activity.locale;
            return await min.conversationalService.prompt(min, step, Messages[locale].publish_type_yes);
          }
        },
        async step => {
          const locale = step.context.activity.locale;

          // If the user says yes, starts publishing.

          if (AdminDialog.isIntentYes(locale, step.result)) {
            const list = min.core.getParam(min.instance, '.gbapp List', null);
            const items = list ? list.split(';') : [];

            step.activeDialog.state.options.args;

            for (let i = 0; i < items.length; i++) {
              for (let j = 0; j < min.appPackages.length; j++) {
                if (items[i] === min.appPackages[j]['name']) {
                  const element = min.appPackages[i];
                  await element.onExchangeData(min, 'install', null);
                  break;
                }
              }
            }
          } else {
            await min.conversationalService.sendText(min, step, Messages[locale].publish_canceled);
          }
        }
      ])
    );


    min.dialogs.add(
      new WaterfallDialog('/logs', [
        async step => {
          if (step.context.activity.channelId !== 'msteams' && process.env.ENABLE_AUTH) {
            return await step.beginDialog('/auth');
          } else {
            return await step.next(step.options);
          }
        },
        async step => {
          const logs = await min.core['getLatestLogs']();
          await min.conversationalService.sendText(min, step, logs);
          return await step.replaceDialog('/ask', { isReturning: true });
        }
      ]));


    min.dialogs.add(
      new WaterfallDialog('/publish', [
        async step => {
          if (step.context.activity.channelId !== 'msteams' && process.env.ENABLE_AUTH) {
            return await step.beginDialog('/auth');
          } else {
            return await step.next(step.options);
          }
        },

        async step => {
          step.activeDialog.state.options.confirm = true; // Feature removed.
          if (step.activeDialog.state.options.confirm || process.env.ADMIN_OPEN_PUBLISH === 'true') {
            return await step.next('sim');
          } else {
            const locale = step.context.activity.locale;
            return await min.conversationalService.prompt(min, step, Messages[locale].publish_type_yes);
          }
        },
        async step => {
          const locale = step.context.activity.locale;

          // If the user says yes, starts publishing.

          if (AdminDialog.isIntentYes(locale, step.result)) {
            let from = step.context.activity.from.id;

            let canPublish: Boolean;
            if (step.activeDialog.state.options.firstTime) {
              canPublish = true;
            } else {
              canPublish = AdminDialog.canPublish(min, from) || process.env.ADMIN_OPEN_PUBLISH === 'true';
            }

            if (!canPublish) {
              await step.beginDialog('/admin-auth');
            } else {
              await step.next(true);
            }
          } else {
            await min.conversationalService.sendText(min, step, Messages[locale].publish_canceled);
          }
        },
        async step => {
          const locale = step.context.activity.locale;
          if (!step.result) {
            await min.conversationalService.sendText(min, step, Messages[locale].publish_must_be_admin);

            return step.endDialog();
          }

          const botId = min.instance.botId;

          await min.conversationalService.sendText(min, step, Messages[locale].working('Publishing'));

          step.activeDialog.state.options.args = (step.options as any).args;
          const filename = step.activeDialog.state.options.args
            ? step.activeDialog.state.options.args.split(' ')[0]
            : null;

          const packages = [];
          let skipError = false;
          if (!filename || filename === '') {
            await min.conversationalService.sendText(min, step, `Starting publishing for ${botId} packages...`);
            packages.push(`${botId}.gbot`);
            packages.push(`${botId}.gbtheme`);
            packages.push(`${botId}.gbkb`);
            packages.push(`${botId}.gbdialog`);
            skipError = true;
          } else {
            packages.push(filename);
          }


          await CollectionUtil.asyncForEach(packages, async packageName => {
            let cmd1;

            if (
              packageName.toLowerCase() === 'gbdialog' ||
              packageName.toLowerCase() === 'gbkb' ||
              packageName.toLowerCase() === 'gbot' ||
              packageName.toLowerCase() === 'gbtheme'
            ) {
              packageName = `${min.botId}.${packageName}`;
            }

            if (packageName.indexOf('.') !== -1) {
              cmd1 = `deployPackage ${process.env.STORAGE_SITE} /${GBConfigService.get('STORAGE_LIBRARY')}/${botId}.gbai/${packageName}`;
            } else {
              cmd1 = `deployPackage ${packageName}`;
            }
            if (
              (await (deployer as any).getStoragePackageByName(min.instance.instanceId, packageName)) !== null &&
              !process.env.DONT_DOWNLOAD
            ) {
              const cmd2 = `undeployPackage ${packageName}`;
              await GBAdminService.undeployPackageCommand(cmd2, min);
            }
            let sec = new SecService();
            const member = step.context.activity.from;
            const user = await sec.ensureUser(
              min,
              member.id,
              member.name,
              '',
              'web',
              member.name,
              null
            );

            await GBAdminService.deployPackageCommand(min, user, cmd1, deployer);

          });
          await min.conversationalService.sendText(min, step, `Training is finished.`);

          if (!step.activeDialog.state.options.confirm) {
            return await step.replaceDialog('/ask', { isReturning: true });
          } else {
            return await step.endDialog();
          }
        }
      ])
    );
  }

  /**
   * Check if the specified phone can receive a message by running
   * the /broadcast command with specific phone numbers.
   * @param phone Phone number to check (eg.: +5521900002233)
   */
  public static canPublish(min: GBMinInstance, phone: string): Boolean {
    if (process.env.SECURITY_CAN_PUBLISH !== undefined) {
      let list = process.env.SECURITY_CAN_PUBLISH.split(';');

      const canPublish = min.core.getParam(min.instance, 'Can Publish', null);
      if (canPublish) {
        list = list.concat(canPublish.split(';'));
      }

      let result = list.includes(phone);

      if (!result && min.instance.params) {
        const params = JSON.parse(min.instance.params);
        if (params) {
          return list.includes(params['Can Publish']);
        }
      }
      return result;
    }
  }

  private static setupSecurityDialogs(min: GBMinInstance) {
    min.dialogs.add(
      new WaterfallDialog('/setupSecurity', [
        async step => {
          const tokenName = step.activeDialog.state.tokenName = step.options['args'];
          if (tokenName) {
            step.activeDialog.state.clientId = min.core.getParam<string>(min.instance, `${tokenName} Client ID`, null),
              step.activeDialog.state.host = min.core.getParam<string>(min.instance, `${tokenName} Host`, null),
              step.activeDialog.state.tenant = min.core.getParam<string>(min.instance, `${tokenName} Tenant`, null)
          }
          if (step.context.activity.channelId !== 'msteams' && process.env.ENABLE_AUTH) {
            return await step.beginDialog('/auth');
          } else {
            return await step.next(step.options);
          }
        },

        async step => {
          if (step.activeDialog.state.tokenName) {
            return await step.next(step.options);
          }

          const locale = step.context.activity.locale;
          const prompt = Messages[locale].enter_authenticator_tenant;

          return await min.conversationalService.prompt(min, step, prompt);
        },
        async step => {
          if (step.activeDialog.state.tokenName) {
            return await step.next(step.options);
          }
          step.activeDialog.state.authenticatorTenant = step.context.activity['originalText'];
          const locale = step.context.activity.locale;
          const prompt = Messages[locale].enter_authenticator_authority_host_url;

          return await min.conversationalService.prompt(min, step, prompt);
        },
        async step => {

          step.activeDialog.state.authenticatorAuthorityHostUrl = step.context.activity['originalText'];

          const tokenName = step.activeDialog.state.tokenName;

          if (!tokenName) {
            min.instance.authenticatorAuthorityHostUrl = step.activeDialog.state.authenticatorAuthorityHostUrl;
            min.instance.authenticatorTenant = step.activeDialog.state.authenticatorTenant;
          

          await min.adminService.updateSecurityInfo(
            min.instance.instanceId,
            tokenName ? step.activeDialog.state.tenant : step.activeDialog.state.authenticatorTenant,
            tokenName ? step.activeDialog.state.host : step.activeDialog.state.authenticatorAuthorityHostUrl
          );
          }
          const locale = step.context.activity.locale;
          const buf = Buffer.alloc(16);
          const state = `${min.instance.instanceId}${crypto.randomFillSync(buf).toString('hex')}`;

          min.adminService.setValue(min.instance.instanceId, `${tokenName}AntiCSRFAttackState`, state);

          const redirectUri = urlJoin(process.env.BOT_URL, min.instance.botId,
            tokenName ? `/token?value=${tokenName}` : '/token');
          const scope = tokenName ? '' : 'https://graph.microsoft.com/.default';
          const host = tokenName ? step.activeDialog.state.host : 'https://login.microsoftonline.com'
          const tenant = tokenName ? step.activeDialog.state.tenant : min.instance.authenticatorTenant;
          const clientId = tokenName ? step.activeDialog.state.clientId : (min.instance.marketplaceId ? 
              min.instance.marketplaceId : GBConfigService.get('MARKETPLACE_ID'));
          const oauth2 = tokenName ? 'oauth' : 'oauth2';
          const url = `${host}/${tenant}/${oauth2}/authorize?client_id=${clientId}&response_type=code&redirect_uri=${redirectUri}&scope=${scope}&state=${state}&response_mode=query`;

          await min.conversationalService.sendText(min, step, Messages[locale].consent(url));

          return await step.replaceDialog('/ask', { isReturning: true });
        }
      ])
    );
  }
}