import { UseCase } from "@/core/domain/use-case";
import { Either, left, right } from "@/core/logic/either";
import { ApiClientProvider } from "@/providers/api-client-provider";
import { InferenceHardware } from "../../domain/inference-hardware";
import { ListInferenceHardwaresError } from "./errors/list-inference-hardwares-error";

export class ListInferenceHardwares
  implements UseCase<void, InferenceHardware[], ListInferenceHardwaresError>
{
  constructor(private readonly apiClient: ApiClientProvider) {}

  async execute(): Promise<
    Either<ListInferenceHardwaresError, InferenceHardware[]>
  > {
    try {
      const hardwares = await this.apiClient.get<InferenceHardware[]>(
        "/ai-inference/hardwares"
      );

      if (!hardwares) {
        return left(
          new ListInferenceHardwaresError("Failed to list inference hardwares")
        );
      }

      return right(hardwares);
    } catch (error) {
      return left(
        new ListInferenceHardwaresError(
          error instanceof Error ? error.message : "Unexpected error occurred."
        )
      );
    }
  }
}