// Copyright 2026 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

import Foundation

/// An internal data model for `ImageResponseFormat`.
///
/// ### Gemini Developer API
///
/// Type: `GoogleAiGenerativelanguageV1betaImageResponseFormat`
///
/// Configuration for image output format.
///
/// ### Gemini Enterprise Agent Platform
///
/// Type: `GoogleCloudAiplatformV1beta1ImageResponseFormat`
///
/// Configuration for image-specific output formatting.
package struct ImageResponseFormat: Codable, Sendable, Equatable, Hashable {
  /// Optional. The MIME type of the image output.
  package let mimeType: MimeType?

  /// Optional. The delivery mode for the image output.
  ///
  /// ### Gemini Developer API
  ///
  /// Optional. The delivery mode for the image output.
  ///
  /// ### Gemini Enterprise Agent Platform
  ///
  /// Optional. Delivery mode for the generated content.
  package let delivery: Delivery?

  /// Optional. The aspect ratio for the image output.
  package let aspectRatio: AspectRatio?

  /// Optional. The size of the image output.
  package let imageSize: ImageSize?

  /// Creates a new `ImageResponseFormat`.
  ///
  /// - Parameters:
  ///   - mimeType: Optional. The MIME type of the image output.
  ///   - delivery: Optional. The delivery mode for the image output. (behavior varies by backend). For more details, see ``delivery``.
  ///   - aspectRatio: Optional. The aspect ratio for the image output.
  ///   - imageSize: Optional. The size of the image output.
  package init(
    mimeType: MimeType? = nil,
    delivery: Delivery? = nil,
    aspectRatio: AspectRatio? = nil,
    imageSize: ImageSize? = nil
  ) {
    self.mimeType = mimeType
    self.delivery = delivery
    self.aspectRatio = aspectRatio
    self.imageSize = imageSize
  }
  enum CodingKeys: String, CodingKey {
    case mimeType = "mimeType"
    case delivery = "delivery"
    case aspectRatio = "aspectRatio"
    case imageSize = "imageSize"
  }
}