using Sdt.Config;
using Sdt.Tui;
using Spectre.Console;

// ── Workspace + project discovery ────────────────────────────────────────────

var workspaceResult = WorkspaceLoader.FindAndLoad();
var projectResult = ConfigLoader.FindAndLoad();

if (projectResult is null)
{
    AnsiConsole.MarkupLine($"[bold {Theme.Red}]SDT:[/] [{Theme.Amber}]No devtool.json found[/] in current directory or any parent.");
    AnsiConsole.MarkupLine(Theme.Faint("Create a devtool.json in your project root to get started."));
    return 1;
}

// ── Main run loop (handles workspace project switching) ───────────────────────

var (currentConfig, currentRoot) = projectResult.Value;
var (workspace, workspaceRoot) = workspaceResult.HasValue
    ? (workspaceResult.Value.Config, workspaceResult.Value.WorkspaceRoot)
    : ((WorkspaceConfig?)null, (string?)null);

try
{
    while (true)
    {
        var app = new App(currentConfig, currentRoot, workspace, workspaceRoot);
        var result = await app.RunAsync();

        if (result.Reason == AppExitReason.Quit)
            break;

        // User switched projects — reload config from new root
        if (result.Reason == AppExitReason.SwitchProject && result.NewProjectRoot is not null)
        {
            var loaded = ConfigLoader.FindAndLoad(result.NewProjectRoot);
            if (loaded is null)
            {
                AnsiConsole.MarkupLine(Theme.Fail($"No devtool.json found at: {result.NewProjectRoot}"));
                AnsiConsole.MarkupLine(Theme.Faint("Press any key to stay on current project..."));
                Console.ReadKey(intercept: true);
                continue; // go back to current app
            }

            (currentConfig, currentRoot) = loaded.Value;
        }
    }

    return 0;
}
catch (Exception ex)
{
    AnsiConsole.MarkupLine(Theme.Fail($"Fatal: {ex.Message}"));
    AnsiConsole.WriteException(ex, ExceptionFormats.ShortenEverything);
    return 1;
}