// 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 `FunctionResponsePart`.
///
/// ### Gemini Developer API
///
/// Type: `GoogleAiGenerativelanguageV1betaFunctionResponsePart`
///
/// A datatype containing media that is part of a `FunctionResponse` message.
///
/// A `FunctionResponsePart` consists of data which has an associated datatype. A
/// `FunctionResponsePart` can only contain one of the accepted types in
/// `FunctionResponsePart.data`.
///
/// A `FunctionResponsePart` must have a fixed IANA MIME type identifying the
/// type and subtype of the media if the `inline_data` field is filled with raw
/// bytes.
///
/// ### Gemini Enterprise API
///
/// Type: `GoogleCloudAiplatformV1beta1FunctionResponsePart`
///
/// A datatype containing media that is part of a `FunctionResponse` message.
///
/// A `FunctionResponsePart` consists of data which has an associated datatype. A
/// `FunctionResponsePart` can only contain one of the accepted types in
/// `FunctionResponsePart.data`.
///
/// A `FunctionResponsePart` must have a fixed IANA MIME type identifying the
/// type and subtype of the media if the `inline_data` field is filled with raw
/// bytes.
package struct FunctionResponsePart: Codable, Sendable, Equatable, Hashable {
  /// Inline media bytes.
  package let inlineData: FunctionResponseBlob?

  /// URI based data.
  ///
  /// ### Gemini Developer API
  ///
  /// > Important: This property is not supported in the Gemini Developer API.
  ///
  /// ### Gemini Enterprise API
  ///
  /// URI based data.
  package let fileData: FunctionResponseFileData?

  /// Creates a new `FunctionResponsePart`.
  ///
  /// - Parameters:
  ///   - inlineData: Inline media bytes.
  ///   - fileData: URI based data. (Gemini Enterprise API only). For more details, see ``fileData``.
  package init(
    inlineData: FunctionResponseBlob? = nil,
    fileData: FunctionResponseFileData? = nil
  ) {
    self.inlineData = inlineData
    self.fileData = fileData
  }
  enum CodingKeys: String, CodingKey {
    case inlineData = "inlineData"
    case fileData = "fileData"
  }
}