using System.Runtime.CompilerServices;
using ClaudeDo.Localization;
using ClaudeDo.Ui.Localization;
using ClaudeDo.Ui.Services;

namespace ClaudeDo.Worker.Tests;

internal static class TestSetup
{
    // Runs once when this test assembly loads, before any test executes. UiVm/*Tests.cs construct
    // real TasksIslandViewModel instances, whose LoadForListAsync/ReorderAsync/ReconcileTickAsync
    // call OperationTiming.Shared.Record directly — without a redirect those writes land in the
    // live app's ~/.todo-app/logs/operation-timing.ndjson (see ClaudeDo.Ui.Tests' TestSetup for
    // the same trap on the Ui.Tests side).
    [ModuleInitializer]
    internal static void RedirectOperationTimingAwayFromRealAppData()
    {
        var path = Path.Combine(Path.GetTempPath(), "claudedo-worker-tests", $"operation-timing-{Environment.ProcessId}.ndjson");
        OperationTiming.Shared = new OperationTiming(path);
    }

    // Installs the real localizer before any test runs, mirroring ClaudeDo.Ui.Tests' TestSetup,
    // so a UiVm test that reads Loc.T without setting up its own localizer doesn't depend on
    // ambient state left by whichever test class happened to run first. Deliberately does NOT
    // also disable test parallelization here (unlike Ui.Tests) — measured 14m49s -> 18m46s
    // (+27%) on this project's real-SQLite/git suite, too costly for a test-only ordering issue
    // that the module initializer alone already closes.
    [ModuleInitializer]
    internal static void InstallRealLocalizer()
    {
        var dir = AppContext.BaseDirectory;
        while (dir is not null && !Directory.Exists(Path.Combine(dir, "src", "ClaudeDo.Localization", "locales")))
            dir = Path.GetDirectoryName(dir);
        Loc.Current = new Localizer(
            LocaleStore.Load(Path.Combine(dir!, "src", "ClaudeDo.Localization", "locales")), "en");
    }
}