import { type Result, ok, err } from 'neverthrow';
import type { IGeminiClient } from '../ports/index.js';
import type { GeminiModelSummary } from '../entities/index.js';
import type { DomainError } from '../../shared/errors/index.js';
export interface ListModelsOutput {
readonly models: readonly GeminiModelSummary[];
readonly count: number;
}
export class ListModelsUseCase {
constructor(private readonly geminiClient: IGeminiClient) {}
async execute(): Promise<Result<ListModelsOutput, DomainError>> {
const result = await this.geminiClient.listModels();
if (result.isErr()) {
return err(result.error);
}
const models = result.value;
const summaries: readonly GeminiModelSummary[] = models.map((model) => ({
name: model.name,
displayName: model.displayName,
description: model.description,
}));
return ok({
models: summaries,
count: summaries.length,
});
}
}
