alexandrev-tibco
a5c304e209
- Dish: ingredients [String] (default [], never required) and photoData (externalStorage). Additive SwiftData migration — existing stores unaffected. - ICloudSyncService: sync ingredients (optional in payload so pre-2.0 snapshots still decode); photos deliberately excluded from KV sync (1MB limit). - IngredientGenerator: Foundation Models (iOS 26+) generates localized ingredient lines from the dish name, fully on-device. isAvailable gates the UI affordance on older OS/devices; failures record to Crashlytics and return []. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01BkanrydYtrme8wipTzWssG
69 lines
2.9 KiB
Swift
69 lines
2.9 KiB
Swift
import Foundation
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#if canImport(FoundationModels)
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import FoundationModels
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#endif
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/// On-device ingredient generation from a dish name using Apple's Foundation
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/// Models (iOS 26+, Apple Intelligence). Fully local — no network, no API key,
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/// private. On older OS versions or unsupported devices it simply reports
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/// `isAvailable == false` and callers hide the "Generate" affordance.
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enum IngredientGenerator {
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/// Whether on-device generation can run right now on this device.
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static var isAvailable: Bool {
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#if canImport(FoundationModels)
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if #available(iOS 26.0, *) {
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if case .available = SystemLanguageModel.default.availability { return true }
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}
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#endif
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return false
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}
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/// Generates ingredient lines for a dish, localized to `language`.
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/// Returns an empty array when unavailable or on failure (never throws).
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static func generate(dishName: String, language: AppLanguage) async -> [String] {
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let trimmed = dishName.trimmingCharacters(in: .whitespacesAndNewlines)
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guard !trimmed.isEmpty else { return [] }
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#if canImport(FoundationModels)
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if #available(iOS 26.0, *), case .available = SystemLanguageModel.default.availability {
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let langName = language.resolved().displayName
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let instructions = """
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You are a helpful cooking assistant. Given a dish name, list the \
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typical grocery ingredients needed to cook it for a family of four. \
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Output one ingredient per line with a rough quantity (e.g. \
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"500 g minced beef"). No numbering, no bullet symbols, no headings, \
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no extra commentary. Write the ingredients in \(langName).
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"""
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do {
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let session = LanguageModelSession(instructions: instructions)
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let response = try await session.respond(to: "Dish: \(trimmed)")
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return parseLines(response.content)
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} catch {
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CrashlyticsService.record(error, context: "ingredient_generation")
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return []
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}
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}
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#endif
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return []
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}
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/// Normalizes raw model output into clean ingredient lines, stripping any
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/// stray bullets or numbering the model may still emit.
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static func parseLines(_ text: String) -> [String] {
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text
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.split(whereSeparator: \.isNewline)
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.map { line -> String in
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var s = line.trimmingCharacters(in: .whitespaces)
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for bullet in ["- ", "• ", "* ", "– ", "— "] where s.hasPrefix(bullet) {
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s.removeFirst(bullet.count)
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}
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if let range = s.range(of: #"^\d+[\.\)]\s+"#, options: .regularExpression) {
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s.removeSubrange(range)
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}
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return s.trimmingCharacters(in: .whitespaces)
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}
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.filter { !$0.isEmpty }
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}
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}
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