Links
https://github.com/EndyKaufman/kaufman-bot - source code of bot
https://telegram.me/DevelopKaufmanBot - current bot in telegram
https://dev.to/endykaufman/series/17029 - series about custom injector
Description of work
The fact generator is based on the ScraperModule, we will not introduce the logic of supporting different configurations for different languages into this module.
For different options for working for different languages, we will add a duplicate ScraperModule import with a different configuration and create a language-specific command handler.
In order for the logic of two different ScraperModules not to overlap, we will wrap its import in CustomInjectorModule.forFeature.
Update facts-generator
Create new service for Russian language
libs/facts-generator/server/src/lib/facts-generator-services/ru-facts-generator.service.ts
import {
BotCommandsEnum,
BotCommandsProvider,
BotCommandsProviderActionMsg,
BotCommandsProviderActionResultType,
BotŠ”ommandsToolsService,
} from '@kaufman-bot/core/server';
import { ScraperService } from '@kaufman-bot/html-scraper/server';
import { Injectable } from '@nestjs/common';
@Injectable()
export class RuFactsGeneratorService implements BotCommandsProvider {
constructor(
private readonly scraperService: ScraperService,
private readonly botŠ”ommandsToolsService: BotŠ”ommandsToolsService
) {}
async onHelp<
TMsg extends BotCommandsProviderActionMsg = BotCommandsProviderActionMsg
>(msg: TMsg) {
const locale = msg.from?.language_code;
if (!locale?.includes('ru')) {
return null;
}
return await this.scraperService.onHelp(msg);
}
async onMessage<
TMsg extends BotCommandsProviderActionMsg = BotCommandsProviderActionMsg
>(msg: TMsg): Promise<BotCommandsProviderActionResultType<TMsg>> {
const locale = msg.from?.language_code;
if (!locale?.includes('ru')) {
return null;
}
if (
this.botŠ”ommandsToolsService.checkCommands(
msg.text,
[...Object.keys(BotCommandsEnum)],
locale
)
) {
const result = await this.scraperService.onMessage(msg);
try {
if (result?.type === 'text') {
return {
type: 'text',
text: result.text.split('\\"').join('"').split('\n').join(' '),
};
}
return result;
} catch (err) {
console.debug(result);
console.error(err, err.stack);
throw err;
}
}
return null;
}
}
Update old service for English language
libs/facts-generator/server/src/lib/facts-generator-services/facts-generator.service.ts
import {
BotCommandsEnum,
BotCommandsProvider,
BotCommandsProviderActionMsg,
BotCommandsProviderActionResultType,
BotŠ”ommandsToolsService,
} from '@kaufman-bot/core/server';
import { ScraperService } from '@kaufman-bot/html-scraper/server';
import { Injectable } from '@nestjs/common';
@Injectable()
export class FactsGeneratorService implements BotCommandsProvider {
constructor(
private readonly scraperService: ScraperService,
private readonly botŠ”ommandsToolsService: BotŠ”ommandsToolsService
) {}
async onHelp<
TMsg extends BotCommandsProviderActionMsg = BotCommandsProviderActionMsg
>(msg: TMsg) {
const locale = msg.from?.language_code;
if (locale?.includes('ru')) {
return null;
}
return await this.scraperService.onHelp(msg);
}
async onMessage<
TMsg extends BotCommandsProviderActionMsg = BotCommandsProviderActionMsg
>(msg: TMsg): Promise<BotCommandsProviderActionResultType<TMsg>> {
const locale = msg.from?.language_code;
if (locale?.includes('ru')) {
return null;
}
if (
this.botŠ”ommandsToolsService.checkCommands(
msg.text,
[...Object.keys(BotCommandsEnum)],
locale
)
) {
const result = await this.scraperService.onMessage(msg);
try {
if (result?.type === 'text') {
return {
type: 'text',
text: result.text
.replace('\n\nTweet [http://twitter.com/share]', '')
.split('\\"')
.join('"')
.split('\n')
.join(' '),
};
}
return result;
} catch (err) {
console.debug(result);
console.error(err, err.stack);
throw err;
}
}
return null;
}
}
Update FactsGeneratorModule
libs/facts-generator/server/src/lib/facts-generator.module.ts
import {
BotCommandsModule,
BOT_COMMANDS_PROVIDER,
} from '@kaufman-bot/core/server';
import { ScraperModule } from '@kaufman-bot/html-scraper/server';
import { DynamicModule, Module } from '@nestjs/common';
import { getText } from 'class-validator-multi-lang';
import { CustomInjectorModule } from 'nestjs-custom-injector';
import { TranslatesModule } from 'nestjs-translates';
import { FactsGeneratorService } from './facts-generator-services/facts-generator.service';
import { RuFactsGeneratorService } from './facts-generator-services/ru-facts-generator.service';
@Module({
imports: [TranslatesModule, BotCommandsModule],
exports: [TranslatesModule, BotCommandsModule],
})
export class FactsGeneratorModule {
static forRoot(): DynamicModule {
return {
module: FactsGeneratorModule,
imports: [
CustomInjectorModule.forFeature({
imports: [
ScraperModule.forRoot({
name: getText('Facts generator'),
descriptions: getText(
'Command to generate text with a random fact'
),
usage: [getText('get facts'), getText('facts help')],
contentSelector: '#z',
spyWords: [getText('facts')],
removeWords: [getText('get'), getText('please')],
uri: 'http://randomfactgenerator.net/',
}),
],
providers: [
{
provide: BOT_COMMANDS_PROVIDER,
useClass: FactsGeneratorService,
},
],
exports: [ScraperModule],
}),
CustomInjectorModule.forFeature({
imports: [
ScraperModule.forRoot({
name: getText('Facts generator'),
descriptions: getText(
'Command to generate text with a random fact'
),
usage: [getText('get facts'), getText('facts help')],
contentSelector: '#fact > table > tbody > tr > td',
spyWords: [getText('facts')],
removeWords: [getText('get'), getText('please')],
uri: 'https://randstuff.ru/fact/',
contentCodepage: 'utf8',
}),
],
providers: [
{
provide: BOT_COMMANDS_PROVIDER,
useClass: RuFactsGeneratorService,
},
],
exports: [ScraperModule],
}),
],
};
}
}
Prepare files and append translates if need
npm run generate
Because nothing to changed, we may commit code and test it from telegram
Check new logic in telegram bot
Common help message
Common help message in Russian language
Get fact in English language
Get fact in Russian language
In the next post, I will add people quotes and jokes for English and Russian languages...
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