//
//  PreferencePersistenceTests.swift
//
//  Copyright 2026 Brendan Szymanski <hello@bscubed.dev>
//
//  This program is free software: you can redistribute it and/or modify
//  it under the terms of the GNU General Public License as published by
//  the Free Software Foundation, either version 3 of the License, or
//  (at your option) any later version.
//
//  This program is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU General Public License for more details.
//
//  You should have received a copy of the GNU General Public License
//  along with this program.  If not, see <https://www.gnu.org/licenses/>.
//
//  SPDX-License-Identifier: GPL-3.0-or-later
//

import Foundation
import Testing

@testable import LuminateCore
@testable import LuminateStore
@testable import LuminateUI

/// Verifies preference persistence across the UI and SQLite layers.
@MainActor @Suite struct PreferencePersistenceTests {
    @Test("A preference written through a slot survives flush and reopen without a main-loop turn")
    func survivesFlushAndReopen() async throws {
        let directory = FileManager.default.temporaryDirectory
            .appending(path: "luminate-e2e-\(UUID().uuidString)", directoryHint: .isDirectory)
        defer { try? FileManager.default.removeItem(at: directory) }
        let url = directory.appending(path: "preferences.sqlite")

        let preferences = Preferences(store: try SQLitePreferenceStore(url: url))
        preferences.slot(for: .serverURL).value = URL(string: "http://jellyfin.test:8096")
        try await preferences.flush()

        let reopened = try SQLitePreferenceStore(url: url)
        #expect(reopened.initialSnapshot["server.url"] == .text("http://jellyfin.test:8096"))
    }

    @Test("Bootstrap points the shared coordinator at the on-disk store")
    func bootstrapInstallsSharedCoordinator() async throws {
        let directory = FileManager.default.temporaryDirectory
            .appending(path: "luminate-bootstrap-\(UUID().uuidString)", directoryHint: .isDirectory)
        defer { try? FileManager.default.removeItem(at: directory) }
        let url = directory.appending(path: "preferences.sqlite")

        Preferences.bootstrap(PreferenceBackend.open(url: url))
        Preferences.shared[.serverURL] = URL(string: "http://jellyfin.test:8096")
        try await Preferences.shared.flush()

        let reopened = try SQLitePreferenceStore(url: url)
        #expect(reopened.initialSnapshot["server.url"] == .text("http://jellyfin.test:8096"))
    }
}