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.
92 lines
3.3 KiB
Swift
92 lines
3.3 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 `PromptFeedback`.
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///
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/// ### Gemini Developer API
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///
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/// Type: `GoogleAiGenerativelanguageV1betaGenerateContentResponsePromptFeedback`
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///
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/// A set of the feedback metadata the prompt specified in
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/// `GenerateContentRequest.content`.
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///
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/// ### Gemini Enterprise Agent Platform
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///
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/// Type: `GoogleCloudAiplatformV1beta1GenerateContentResponsePromptFeedback`
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///
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/// Content filter results for a prompt sent in the request.
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/// Note: This is sent only in the first stream chunk and only if no
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/// candidates were generated due to content violations.
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package struct PromptFeedback: Codable, Sendable, Equatable, Hashable {
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/// Optional. If set, the prompt was blocked and no candidates are returned.
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///
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/// ### Gemini Developer API
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///
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/// Optional. If set, the prompt was blocked and no candidates are returned.
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/// Rephrase the prompt.
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///
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/// ### Gemini Enterprise Agent Platform
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///
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/// Output only. The reason why the prompt was blocked.
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package let blockReason: BlockReason?
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/// Ratings for safety of the prompt.
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///
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/// ### Gemini Developer API
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///
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/// Ratings for safety of the prompt.
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/// There is at most one rating per category.
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///
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/// ### Gemini Enterprise Agent Platform
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///
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/// Output only. A list of safety ratings for the prompt. There is one rating per
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/// category.
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package let safetyRatings: [SafetyRating]?
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/// Output only. A readable message that explains the reason why the prompt was
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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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/// Output only. A readable message that explains the reason why the prompt was
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/// blocked.
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package let blockReasonMessage: String?
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/// Creates a new `PromptFeedback`.
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///
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/// - Parameters:
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/// - blockReason: Optional. If set, the prompt was blocked and no candidates are returned. (behavior varies by backend). For more details, see ``blockReason``.
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/// - safetyRatings: Ratings for safety of the prompt. (behavior varies by backend). For more details, see ``safetyRatings``.
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/// - blockReasonMessage: Output only. A readable message that explains the reason why the prompt was (Gemini Enterprise Agent Platform only). For more details, see ``blockReasonMessage``.
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package init(
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blockReason: BlockReason? = nil,
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safetyRatings: [SafetyRating]? = nil,
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blockReasonMessage: String? = nil
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) {
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self.blockReason = blockReason
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self.safetyRatings = safetyRatings
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self.blockReasonMessage = blockReasonMessage
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}
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enum CodingKeys: String, CodingKey {
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case blockReason = "blockReason"
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case safetyRatings = "safetyRatings"
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case blockReasonMessage = "blockReasonMessage"
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}
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}
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