File: ai_utils.cc

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// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "chrome/browser/ai/ai_utils.h"

#include "third_party/blink/public/mojom/ai/model_streaming_responder.mojom.h"

using ModelExecutionError = optimization_guide::
    OptimizationGuideModelExecutionError::ModelExecutionError;

blink::mojom::ModelStreamingResponseStatus AIUtils::ConvertModelExecutionError(
    ModelExecutionError error) {
  switch (error) {
    case ModelExecutionError::kUnknown:
      return blink::mojom::ModelStreamingResponseStatus::kErrorUnknown;
    case ModelExecutionError::kInvalidRequest:
      return blink::mojom::ModelStreamingResponseStatus::kErrorInvalidRequest;
    case ModelExecutionError::kRequestThrottled:
      return blink::mojom::ModelStreamingResponseStatus::kErrorRequestThrottled;
    case ModelExecutionError::kPermissionDenied:
      return blink::mojom::ModelStreamingResponseStatus::kErrorPermissionDenied;
    case ModelExecutionError::kGenericFailure:
      return blink::mojom::ModelStreamingResponseStatus::kErrorGenericFailure;
    case ModelExecutionError::kRetryableError:
      return blink::mojom::ModelStreamingResponseStatus::kErrorRetryableError;
    case ModelExecutionError::kNonRetryableError:
      return blink::mojom::ModelStreamingResponseStatus::
          kErrorNonRetryableError;
    case ModelExecutionError::kUnsupportedLanguage:
      return blink::mojom::ModelStreamingResponseStatus::
          kErrorUnsupportedLanguage;
    case ModelExecutionError::kFiltered:
      return blink::mojom::ModelStreamingResponseStatus::kErrorFiltered;
    case ModelExecutionError::kDisabled:
      return blink::mojom::ModelStreamingResponseStatus::kErrorDisabled;
    case ModelExecutionError::kCancelled:
      return blink::mojom::ModelStreamingResponseStatus::kErrorCancelled;
    case ModelExecutionError::kResponseLowQuality:
      return blink::mojom::ModelStreamingResponseStatus::
          kErrorResponseLowQuality;
  }
}

// static
int64_t AIUtils::NormalizeModelDownloadProgress(int64_t bytes_so_far,
                                                int64_t total_bytes) {
  double raw_progress_fraction =
      bytes_so_far / static_cast<double>(total_bytes);

  return raw_progress_fraction * AIUtils::kNormalizedDownloadProgressMax;
}