botserver/packages/kb.gbapp/dialogs/MenuDialog.ts

151 lines
6.3 KiB
TypeScript

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/**
* @fileoverview Main dialog for kb.gbapp
*/
'use strict';
import urlJoin = require('url-join');
import { BotAdapter, CardFactory, MessageFactory } from 'botbuilder';
import { WaterfallDialog } from 'botbuilder-dialogs';
import { GBMinInstance, IGBDialog } from 'botlib';
import { GuaribasSubject } from '../models';
import { KBService } from '../services/KBService';
import { Messages } from '../strings';
import { GBConversationalService } from '../../core.gbapp/services/GBConversationalService';
/**
* Dialog arguments.
*/
export class MenuDialogArgs {
public to: string;
public subjectId: string;
}
/**
* Dialogs for handling Menu control.
*/
export class MenuDialog extends IGBDialog {
/**
* Setup dialogs flows and define services call.
*
* @param bot The bot adapter.
* @param min The minimal bot instance data.
*/
public static setup(bot: BotAdapter, min: GBMinInstance) {
const service = new KBService(min.core.sequelize);
min.dialogs.add(new WaterfallDialog('/menu', MenuDialog.getMenuDialog(min, service)));
}
private static getMenuDialog(min: GBMinInstance, service: KBService) {
return [
async step => {
const locale = step.context.activity.locale;
const user = await min.userProfile.get(step.context, {});
const args: MenuDialogArgs = step.options;
// tslint:disable-next-line: no-null-keyword
let rootSubjectId = null;
if (Object.keys(args).length > 0) {
// If there is a shortcut specified as subject destination, go there.
if (args.to !== null) {
const dialog = args.to.split(':')[1];
return await step.replaceDialog(`/${dialog}`);
}
user.subjects.push(args);
// tslint:disable-next-line: no-null-keyword
rootSubjectId = args.subjectId === undefined ? null : args.subjectId;
// Whenever a subject is selected, shows a faq about it.
if (user.subjects.length > 0) {
const list = await service.getFaqBySubjectArray('menu', user.subjects);
await min.conversationalService.sendEvent(min, step, 'play', {
playerType: 'bullet',
data: list.slice(0, 10)
});
}
} else {
user.subjects = [];
await min.conversationalService.sendText(min, step, Messages[locale].here_is_subjects);
user.isAsking = false;
}
const msg = MessageFactory.text('');
const attachments = [];
const data = await service.getSubjectItems(min.instance.instanceId, rootSubjectId);
msg.attachmentLayout = 'carousel';
data.forEach((item: GuaribasSubject) => {
const subject = item;
const card = CardFactory.heroCard(
subject.title,
subject.description,
CardFactory.images([urlJoin('/kb', min.instance.kb, 'subjects', 'subject.png')]),
CardFactory.actions([
{
type: 'postBack',
title: Messages[locale].menu_select,
value: JSON.stringify({
title: subject.title,
description: subject.description,
subjectId: subject.subjectId,
internalId: subject.internalId,
to: subject.to
})
}
])
);
attachments.push(card);
});
if (attachments.length === 0) {
if (user.subjects && user.subjects.length > 0) {
await min.conversationalService.sendText(min, step,
Messages[locale].lets_search(KBService.getFormattedSubjectItems(user.subjects))
);
}
} else {
msg.attachments = attachments;
await step.context.sendActivity(msg);
}
user.isAsking = true;
return await step.next();
}
];
}
}