import Foundation
import Testing
@testable import SstData

struct AppSettingsTests {
    func freshDefaults() -> UserDefaults {
        let name = "sst-tests-\(UUID().uuidString)"
        let defaults = UserDefaults(suiteName: name)!
        defaults.removePersistentDomain(forName: name)
        return defaults
    }

    @Test func defaultsMatchTheSpec() {
        let settings = AppSettings(defaults: freshDefaults())
        #expect(settings.hotkeyID == "fn")
        #expect(settings.modelVariant == "large-v3-v20240930_turbo")
        #expect(settings.keepHistory)
        #expect(settings.usePriming)
        #expect(settings.useCorrection)
    }

    @Test func changesArePersisted() {
        let defaults = freshDefaults()
        let settings = AppSettings(defaults: defaults)
        settings.hotkeyID = "rightOption"
        settings.modelVariant = "small"
        settings.keepHistory = false
        settings.usePriming = false
        settings.useCorrection = false

        let reloaded = AppSettings(defaults: defaults)
        #expect(reloaded.hotkeyID == "rightOption")
        #expect(reloaded.modelVariant == "small")
        #expect(!reloaded.keepHistory)
        #expect(!reloaded.usePriming)
        #expect(!reloaded.useCorrection)
    }
}