mirror of
https://github.com/firebase/firebase-ios-sdk
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Andrew Heard
3796a55fdf
Implemented `GeminiLanguageModel`, providing an adapter for Google's Gemini models conforming to Apple's `FoundationModels.LanguageModel` protocol. This PR includes text to text generation capabilities; other modalities and Gemini features will be handled in follow-up PRs. **Note:** The `GeminiLanguageModel` implementation is guarded by the environment variable `GEMINI_LANGUAGE_MODEL`. By default none of the `GeminiLanguageModel` implementation is included. Key additions: - `GeminiLanguageModel`: Implements `LanguageModel` protocol with reasoning capabilities, configuring execution via `ModelResource` and `EndpointConfiguration`. - `GeminiLanguageModelExecutor`: Converts prompt instructions and history into Gemini streaming requests, yielding responses as `LanguageModelSession.ResponseStream`. - `GeminiTranscriptTranslator`: Translates Apple `Transcript` entries and segments into Gemini `Content` structures while preserving thought signatures and validating supported transcript features. - `GeminiLanguageModel.Error` and `GeminiErrorMapper`: Translates Gemini API, HTTP, and network errors into standard `LanguageModelError` cases (`rateLimited`, `timeout`, `guardrailViolation`, `refusal`, and `unsupportedLanguageOrLocale`) or `GeminiLanguageModel.Error` cases (`serviceUnavailable`, `networkFailure`, `modelNotFound`, `apiError`). The `APIError` payload is designed for seamless forward compatibility with both GenerateContent and the upcoming Interactions API. - Testing infrastructure: Adds `ConditionTrait.requireFoundationModels` to conditionally run Foundation Models tests only on supported platforms (macOS 27+, iOS 27+, watchOS 27+, visionOS 27+), along with shared test constants, mock fixtures, and comprehensive unit and integration test suites.
97 lines
3.1 KiB
Swift
97 lines
3.1 KiB
Swift
// Copyright 2026 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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import Foundation
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/// An internal data model for `FileData`.
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///
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/// ### Gemini Developer API
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///
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/// Type: `FileData`
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///
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/// An element in the history the represents an external data file.
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///
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/// ### Gemini Enterprise Agent Platform
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///
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/// Type: `GoogleCloudAiplatformV1beta1FileData`
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///
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/// URI-based data.
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///
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/// A FileData message contains a URI
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/// pointing to data of a specific media type. It is used to represent images,
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/// audio, and video stored in Google Cloud Storage.
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package struct FileData: Codable, Sendable, Equatable, Hashable {
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/// Required. The IANA standard MIME type of the source data.
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///
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/// ### Gemini Developer API
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///
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/// Required. The IANA standard MIME type of the source data.
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/// Examples:
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/// - image/png
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/// - image/jpeg
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///
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/// ### Gemini Enterprise Agent Platform
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///
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/// Required. The IANA standard MIME type of the source data.
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package let mimeType: String
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/// Required. URI.
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///
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/// ### Gemini Developer API
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///
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/// Required. URI.
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///
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/// ### Gemini Enterprise Agent Platform
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///
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/// Required. The URI of the file in Google Cloud Storage.
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package let fileUri: String
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/// Optional. The display name of the file. Used to provide a label or filename
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///
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/// ### Gemini Developer API
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///
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/// > Important: This property is not supported in the Gemini Developer API.
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///
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/// ### Gemini Enterprise Agent Platform
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///
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/// Optional. The display name of the file. Used to provide a label or filename
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/// to distinguish files.
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///
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/// This field is only returned in `PromptMessage` for prompt management. It is
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/// used in the Gemini calls only when server side tools (`code_execution`,
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/// `google_search`, and `url_context`) are enabled.
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package let displayName: String?
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/// Creates a new `FileData`.
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///
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/// - Parameters:
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/// - mimeType: Required. The IANA standard MIME type of the source data. (behavior varies by backend). For more details, see ``mimeType``.
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/// - fileUri: Required. URI. (behavior varies by backend). For more details, see ``fileUri``.
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/// - displayName: Optional. The display name of the file. Used to provide a label or filename (Gemini Enterprise Agent Platform only). For more details, see ``displayName``.
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package init(
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mimeType: String,
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fileUri: String,
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displayName: String? = nil
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) {
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self.mimeType = mimeType
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self.fileUri = fileUri
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self.displayName = displayName
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}
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enum CodingKeys: String, CodingKey {
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case mimeType = "mimeType"
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case fileUri = "fileUri"
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case displayName = "displayName"
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}
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}
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