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addAlarmDialog.ts
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addAlarmDialog.ts
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import { DialogContainer, TextPrompt, DatetimePrompt, Sequence, FillFieldStep, CodeStep } from 'botbuilder-dialogs';
import { UserState } from 'botbuilder';
import { Alarm, AlarmUser } from './models';
import * as moment from 'moment';
export class AddAlarmDialog extends DialogContainer {
constructor(userState: UserState) {
super('addAlarm');
this.dialogs.add('addAlarm', [
async function (dc) {
// Initialize temp alarm and prompt for title
dc.activeDialog.state = {} as Alarm;
await dc.prompt('titlePrompt', `What would you like to call your alarm?`);
},
async function (dc, title: string) {
// Save alarm title and prompt for time
const alarm = dc.activeDialog.state as Alarm;
alarm.title = title;
await dc.prompt('timePrompt', `What time would you like to set the "${alarm.title}" alarm for?`);
},
async function (dc, time: Date) {
// Save alarm time
const alarm = dc.activeDialog.state as Alarm;
alarm.time = time.toISOString();
// Alarm completed so set alarm.
const user = userState.get(dc.context) as AlarmUser;
user.alarms.push(alarm);
// Confirm to user
await dc.context.sendActivity(`Your alarm named "${alarm.title}" is set for "${moment(alarm.time).format("ddd, MMM Do, h:mm a")}".`);
await dc.end();
}
]);
this.dialogs.add('addAlarm', new Sequence([
new FillFieldStep('title', 'titlePrompt', `What would you like to call your alarm?`),
new FillFieldStep('time', 'timePrompt', `What time would you like to set the alarm for?`),
new CodeStep(async (dc, step) => {
// Convert to Alarm
const alarm: Alarm = {
title: step.form['title'],
time: step.form['time'].toISOString()
};
// Set alarm.
const user = userState.get(dc.context) as AlarmUser;
user.alarms.push(alarm);
// Confirm to user
await dc.context.sendActivity(`Your alarm named "${alarm.title}" is set for "${moment(alarm.time).format("ddd, MMM Do, h:mm a")}".`);
await dc.end();
})
]));
this.dialogs.add('titlePrompt', new TextPrompt(async (context, value) => {
if (!value || value.length < 3) {
await context.sendActivity(`Title should be at least 3 characters long.`);
return undefined;
} else {
return value.trim();
}
}));
this.dialogs.add('timePrompt', new DatetimePrompt(async (context, values) => {
try {
if (!Array.isArray(values) || values.length < 0) { throw new Error('missing time') }
if (values[0].type !== 'datetime') { throw new Error('unsupported type') }
const value = new Date(values[0].value);
if (value.getTime() < new Date().getTime()) { throw new Error('in the past') }
return value;
} catch (err) {
await context.sendActivity(`Please enter a valid time in the future like "tomorrow at 9am" or say "cancel".`);
return undefined;
}
}));
}
}