mirror of
https://github.com/firebase/firebase-ios-sdk
synced 2026-11-10 22:45:59 +05:45
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.
85 lines
2.7 KiB
Swift
85 lines
2.7 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 `AudioResponseFormat`.
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///
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/// ### Gemini Developer API
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///
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/// Type: `GoogleAiGenerativelanguageV1betaAudioResponseFormat`
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///
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/// Configuration for audio output format.
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///
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/// ### Gemini Enterprise Agent Platform
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///
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/// Type: `GoogleCloudAiplatformV1beta1AudioResponseFormat`
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///
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/// Configuration for audio-specific output formatting.
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package struct AudioResponseFormat: Codable, Sendable, Equatable, Hashable {
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/// Optional. The MIME type of the audio output.
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package let mimeType: MimeType?
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/// Optional. The delivery mode for the audio output.
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///
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/// ### Gemini Developer API
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///
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/// Optional. The delivery mode for the audio output.
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///
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/// ### Gemini Enterprise Agent Platform
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///
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/// Optional. Delivery mode for the generated content.
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package let delivery: Delivery?
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/// Optional. Sample rate in Hz.
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///
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/// ### Gemini Developer API
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///
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/// Optional. Sample rate in Hz.
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///
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/// ### Gemini Enterprise Agent Platform
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///
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/// Optional. Sample rate for the generated audio in Hertz.
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package let sampleRate: Int?
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/// Optional. Bit rate in bits per second (bps). Only applicable for compressed formats
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/// (MP3, Opus).
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package let bitRate: Int?
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/// Creates a new `AudioResponseFormat`.
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///
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/// - Parameters:
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/// - mimeType: Optional. The MIME type of the audio output.
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/// - delivery: Optional. The delivery mode for the audio output. (behavior varies by backend). For more details, see ``delivery``.
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/// - sampleRate: Optional. Sample rate in Hz. (behavior varies by backend). For more details, see ``sampleRate``.
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/// - bitRate: Optional. Bit rate in bits per second (bps). Only applicable for compressed formats
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package init(
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mimeType: MimeType? = nil,
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delivery: Delivery? = nil,
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sampleRate: Int? = nil,
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bitRate: Int? = nil
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) {
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self.mimeType = mimeType
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self.delivery = delivery
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self.sampleRate = sampleRate
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self.bitRate = bitRate
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}
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enum CodingKeys: String, CodingKey {
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case mimeType = "mimeType"
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case delivery = "delivery"
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case sampleRate = "sampleRate"
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case bitRate = "bitRate"
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}
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}
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