37 lines
1.8 KiB
TypeScript
37 lines
1.8 KiB
TypeScript
import type { Presenter } from '../presentation';
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import type { Result } from './Result';
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import type { ApplicationErrorCode } from '../errors/ApplicationErrorCode';
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/**
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* Use Case interface for commands.
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*
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* Use cases represent application-level business logic. They coordinate domain objects and repositories,
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* but contain no infrastructure or framework concerns.
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*
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* Commands change system state and return nothing on success. They use a presenter to handle the output.
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* If a business rejection is possible, the output must be a Result<T, ApplicationErrorCode<E>> handled by the presenter.
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* Use cases do not throw errors; they use error codes in Result.
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*
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* Example:
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* ```typescript
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* export type CreateRaceErrorCode =
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* | 'INSUFFICIENT_PERMISSIONS'
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* | 'RACE_ALREADY_EXISTS'
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* | 'INVALID_RACE_CONFIG';
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*
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* export class CreateRaceUseCase implements UseCase<CreateRaceInput, void, CreateRaceErrorCode, ViewModel, Presenter<Result<void, ApplicationErrorCode<CreateRaceErrorCode>>, ViewModel>> {
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* execute(input: CreateRaceInput, presenter: Presenter<Result<void, ApplicationErrorCode<CreateRaceErrorCode>>, ViewModel>): Promise<void> {
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* // implementation
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* }
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* }
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* ```
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*
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* @template Input - The input type for the use case
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* @template Success - The success type in the Result passed to the presenter
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* @template ErrorCode - The error code type for ApplicationErrorCode
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* @template ViewModel - The view model type
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* @template P - The presenter type, extending Presenter<Result<Success, ApplicationErrorCode<ErrorCode>>, ViewModel>
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*/
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export interface UseCase<Input, Success, ErrorCode extends string, ViewModel, P extends Presenter<Result<Success, ApplicationErrorCode<ErrorCode>>, ViewModel>> {
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execute(input: Input, presenter: P): Promise<void> | void;
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} |