using IBKRTrader.Core.Database.Migrations;
using IBKRTrader.Core.Logging;
using IBKRTrader.Core.Settings;
using IBKRTrader.Core.Workers;
using IBKRTrader.Modules.CongressTrading;
using IBKRTrader.UI;

namespace IBKRTrader;

public partial class Form1 : Form
{
    private readonly LoggingService   _logger;
    private readonly WorkerEngine     _workerEngine;
    private readonly SettingsService  _settings;
    private readonly CoreMigrations   _migrations;
    private readonly IBKRMigrations   _ibkrMigrations;
    private readonly IServiceProvider _services;

    private LogPanelController? _logPanel;

    public Form1(
        LoggingService   logger,
        WorkerEngine     workerEngine,
        SettingsService  settings,
        CoreMigrations   migrations,
        IBKRMigrations   ibkrMigrations,
        IServiceProvider services)
    {
        InitializeComponent();

        _logger         = logger;
        _workerEngine   = workerEngine;
        _settings       = settings;
        _migrations     = migrations;
        _ibkrMigrations = ibkrMigrations;
        _services       = services;
    }

    // ─── Form-Events ──────────────────────────────────────────────────────────

    protected override void OnLoad(EventArgs e)
    {
        base.OnLoad(e);
        InitializeLogPanel();
        InitializeWorkerList();
        InitializeSettingsGrid();
        _ = StartupAsync();
    }

    protected override void OnFormClosing(FormClosingEventArgs e)
    {
        base.OnFormClosing(e);
        // Worker sauber beenden (feuert & vergisst – Form muss kurz warten)
        _workerEngine.StopAllAsync().GetAwaiter().GetResult();
    }

    // ─── Initialisierung ──────────────────────────────────────────────────────

    private void InitializeLogPanel()
    {
        // RichTextBox auf Dock.Fill setzen
        rtb_logs.Dock = DockStyle.Fill;
        _logPanel = new LogPanelController(rtb_logs, _logger);

        // LogLevel aus Settings setzen
        var levelStr = _settings.Settings.Logging.Level;
        if (Enum.TryParse<AppLogLevel>(levelStr, true, out var level))
            _logger.SetMinLevel(level);
    }

    private void InitializeWorkerList()
    {
        WorkerListBindingSource.Setup(dgv_workerlist, _workerEngine.WorkerInfos);
    }

    private void InitializeSettingsGrid()
    {
        pg_settings.SelectedObject = _settings.Settings;
    }

    // ─── Async Startup ────────────────────────────────────────────────────────

    private async Task StartupAsync()
    {
        _logger.Info("Core", "=== IBKRTrader startet ===");
        _logger.Info("Core", $"Version: 1.0.0 | .NET {Environment.Version}");

        // DB-Verbindung testen und Core-Migrationen laufen lassen
        try
        {
            _logger.Info("Core", "Verbinde mit Datenbank...");
            await _migrations.RunAsync();
            await _ibkrMigrations.RunAsync();
        }
        catch (Exception ex)
        {
            _logger.Error("Core", "Core-Datenbankfehler beim Start.", ex);
        }

        // Modul-Migrationen
        try
        {
            await CongressTradingModule.InitializeAsync(_services);
        }
        catch (Exception ex)
        {
            _logger.Error("CT", "CongressTrading-Migrationen fehlgeschlagen.", ex);
        }

        // Worker starten
        await _workerEngine.StartAllAsync();

        _logger.Info("Core", "IBKRTrader bereit.");
        UpdateStatusBar("Bereit");
    }

    // ─── StatusBar ────────────────────────────────────────────────────────────

    private void UpdateStatusBar(string text)
    {
        if (statusStrip1.InvokeRequired)
            statusStrip1.BeginInvoke(() => UpdateStatusBar(text));
        else
        {
            // Vorhandenes Label nutzen oder neues anlegen
            if (statusStrip1.Items.Count == 0)
                statusStrip1.Items.Add(new ToolStripStatusLabel());
            statusStrip1.Items[0].Text = $"Status: {text}  |  {DateTime.Now:HH:mm:ss}";
        }
    }
}