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feat(decorators): TelegrafCommand added

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This commit is contained in:
Aleksandr Bukhalo 2020-03-19 16:39:47 +03:00
parent 6fddfd26f0
commit c0ffdeff34
5 changed files with 39 additions and 0 deletions
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1
lib/decorators/index.ts
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@ -1,4 +1,5 @@
export * from './telegraf-use.decorator'; export * from './telegraf-use.decorator';
export * from './telegraf-on.decorator'; export * from './telegraf-on.decorator';
export * from './telegraf-hears.decorator'; export * from './telegraf-hears.decorator';
export * from './telegraf-command.decorator';
export * from './telegraf-start.decorator'; export * from './telegraf-start.decorator';

12
lib/decorators/telegraf-command.decorator.ts Normal file
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@ -0,0 +1,12 @@
import { SetMetadata } from '@nestjs/common';
import { DECORATORS } from '../telegraf.constants';
/**
* Command handling.
* @param commands Commands
*
* https://telegraf.js.org/#/?id=command
*/
export function TelegrafCommand(commands: string | string[]): MethodDecorator {
return SetMetadata(DECORATORS.COMMAND, { commands });
}

11
lib/telegraf-metadata.accessor.ts
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@ -42,4 +42,15 @@ export class TelegrafMetadataAccessor {
getTelegrafHearsMetadata(target: Type<any> | Function) { getTelegrafHearsMetadata(target: Type<any> | Function) {
return this.reflector.get(DECORATORS.HEARS, target); return this.reflector.get(DECORATORS.HEARS, target);
} }
isTelegrafCommand(target: Type<any> | Function): boolean {
if (!target) {
return false;
}
return !!this.reflector.get(DECORATORS.COMMAND, target);
}
getTelegrafCommandMetadata(target: Type<any> | Function) {
return this.reflector.get(DECORATORS.COMMAND, target);
}
} }

1
lib/telegraf.constants.ts
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@ -6,5 +6,6 @@ export const DECORATORS = {
USE: `${DECORATORS_PREFIX}/USE`, USE: `${DECORATORS_PREFIX}/USE`,
ON: `${DECORATORS_PREFIX}/ON`, ON: `${DECORATORS_PREFIX}/ON`,
HEARS: `${DECORATORS_PREFIX}/HEARS`, HEARS: `${DECORATORS_PREFIX}/HEARS`,
COMMAND: `${DECORATORS_PREFIX}/COMMAND`,
START: `${DECORATORS_PREFIX}/START`, START: `${DECORATORS_PREFIX}/START`,
}; };

14
lib/telegraf.explorer.ts
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@ -53,6 +53,11 @@ export class TelegrafExplorer implements OnModuleInit {
instance[key], instance[key],
); );
this.handleTelegrafHears(instance, key, telegraf, metadata); this.handleTelegrafHears(instance, key, telegraf, metadata);
} else if (this.metadataAccessor.isTelegrafCommand(instance[key])) {
const metadata = this.metadataAccessor.getTelegrafCommandMetadata(
instance[key],
);
this.handleTelegrafCommand(instance, key, telegraf, metadata);
} }
}, },
); );
@ -92,4 +97,13 @@ export class TelegrafExplorer implements OnModuleInit {
) { ) {
telegraf.hears(metadata.triggers, instance[key].bind(instance)); telegraf.hears(metadata.triggers, instance[key].bind(instance));
} }
handleTelegrafCommand(
instance: object,
key: string,
telegraf: Telegraf<ContextMessageUpdate>,
metadata: any,
) {
telegraf.command(metadata.commands, instance[key].bind(instance));
}
} }