using System.ComponentModel;
using IBKRTrader.Core.Trading;

namespace IBKRTrader.Core.Settings;

// ─── Database ────────────────────────────────────────────────────────────────

[TypeConverter(typeof(ExpandableObjectConverter))]
public class DatabaseSettings
{
    [Category("Database")]
    [DisplayName("Host")]
    [Description("MySQL-Serveradresse (Hostname oder IP)")]
    public string Host     { get; set; } = "larx.your-database.de";

    [Category("Database")]
    [DisplayName("Port")]
    [Description("MySQL-Port (Standard: 3306)")]
    public int    Port     { get; set; } = 3306;

    [Category("Database")]
    [DisplayName("Database")]
    [Description("Name der MySQL-Datenbank")]
    public string Database { get; set; } = "bergisnu_db0";

    [Category("Database")]
    [DisplayName("User")]
    [Description("MySQL-Benutzername")]
    public string User     { get; set; } = "bergisnu_0";

    [Category("Database")]
    [DisplayName("Password")]
    [Description("MySQL-Passwort")]
    [PasswordPropertyText(true)]
    public string Password { get; set; } = "o5/A49+f}:Da";

    public string BuildConnectionString() =>
        $"Server={Host};Port={Port};Database={Database};" +
        $"User={User};Password={Password};" +
        $"AllowPublicKeyRetrieval=true;SslMode=Preferred;CharSet=utf8mb4;" +
        $"ConnectionTimeout=15;DefaultCommandTimeout=30;";

    public override string ToString() => $"{User}@{Host}:{Port}/{Database}";
}

// ─── IBKR TWS/Gateway (Socket API) ───────────────────────────────────────────

[TypeConverter(typeof(ExpandableObjectConverter))]
public class IBKRSettings
{
    [Category("IBKR Gateway")]
    [DisplayName("Host")]
    [Description("Adresse des IBKR Gateway (Standard: 127.0.0.1)")]
    public string Host     { get; set; } = "127.0.0.1";

    [Category("IBKR Gateway")]
    [DisplayName("Port")]
    [Description("IBKR Gateway Port (Paper: 4002, Live: 4001)")]
    public int    Port     { get; set; } = 4001;

    [Category("IBKR Gateway")]
    [DisplayName("Client ID")]
    [Description("Eindeutige Client-ID für die API-Verbindung")]
    public int    ClientId { get; set; } = 1;

    public override string ToString() => $"{Host}:{Port} (Client {ClientId})";
}

// ─── IBKR Web API (Client Portal Gateway) ────────────────────────────────────

[TypeConverter(typeof(ExpandableObjectConverter))]
public class IBKRWebApiSettings
{
    [Category("IBKR Web API")]
    [DisplayName("Aktiviert")]
    [Description("Aktiviert die IBKR Web API Marktdaten-Worker")]
    public bool Enabled { get; set; } = false;

    [Category("IBKR Web API")]
    [DisplayName("Gateway URL")]
    [Description("URL des Client Portal Gateway (Standard: https://localhost:5000)")]
    public string GatewayUrl { get; set; } = "https://localhost:5000";

    [Category("IBKR Web API")]
    [DisplayName("History-Zeitraum")]
    [Description("Zeitraum für den ersten historischen Import (z.B. 2Y, 5Y, 1Y)")]
    public string HistoryPeriod { get; set; } = "2Y";

    [Category("IBKR Web API")]
    [DisplayName("Max Requests/Sek")]
    [Description("Maximale API-Anfragen pro Sekunde (IBKR-Limit: 10, empfohlen: 5)")]
    public int MaxRequestsPerSecond { get; set; } = 5;

    public override string ToString() => Enabled ? $"Aktiv – {GatewayUrl}" : "Deaktiviert";
}

// ─── Logging ─────────────────────────────────────────────────────────────────

[TypeConverter(typeof(ExpandableObjectConverter))]
public class LoggingSettings
{
    [Category("Logging")]
    [DisplayName("Log Level")]
    [Description("Minimales Log-Level: Info, Warn oder Error")]
    public string Level         { get; set; } = "Info";

    [Category("Logging")]
    [DisplayName("Max. Dateigröße (MB)")]
    [Description("Maximale Größe einer Log-Datei in Megabyte")]
    public int    MaxFileSizeMb { get; set; } = 10;

    [Category("Logging")]
    [DisplayName("Aufbewahrung (Tage)")]
    [Description("Anzahl Tage, nach denen Log-Dateien gelöscht werden")]
    public int    RetentionDays { get; set; } = 30;

    public override string ToString() => $"Level: {Level}";
}

// ─── Webserver ───────────────────────────────────────────────────────────────

[TypeConverter(typeof(ExpandableObjectConverter))]
public class WebserverSettings
{
    [Category("Webserver")]
    [DisplayName("Port")]
    [Description("Port des internen Webservers (Web-UI)")]
    public int  Port    { get; set; } = 5001;

    [Category("Webserver")]
    [DisplayName("Aktiviert")]
    [Description("Webserver und REST-API beim Start aktivieren")]
    public bool Enabled { get; set; } = false;

    public override string ToString() => Enabled ? $"Aktiv auf Port {Port}" : "Deaktiviert";
}

// ─── Workers ─────────────────────────────────────────────────────────────────

[TypeConverter(typeof(ExpandableObjectConverter))]
public class WorkerSchedule
{
    [Category("Worker")]
    [DisplayName("Aktiviert")]
    public bool Enabled         { get; set; } = true;

    [Category("Worker")]
    [DisplayName("Interval (Minuten)")]
    public int  IntervalMinutes { get; set; } = 30;

    public override string ToString() => Enabled ? $"alle {IntervalMinutes} min" : "Deaktiviert";
}

[TypeConverter(typeof(ExpandableObjectConverter))]
public class WorkerSettings
{
    [Category("Workers")]
    [DisplayName("BackupWorker")]
    [Description("Zeitplan für den automatischen Backup-Worker")]
    public WorkerSchedule BackupWorker { get; set; } = new();

    [Category("Workers")]
    [DisplayName("IBKR Instrument-Sync")]
    [Description("Zeitplan für die IBKR Stammdaten-Synchronisation (alle 30 Tage)")]
    public WorkerSchedule InstrumentSyncWorker { get; set; } = new() { IntervalMinutes = 43200 }; // 30 Tage

    [Category("Workers")]
    [DisplayName("IBKR Preishistorie")]
    [Description("Zeitplan für den täglichen IBKR Preishistorie-Abruf")]
    public WorkerSchedule PriceHistoryWorker { get; set; } = new() { IntervalMinutes = 1440 }; // 24h

    public override string ToString() => "Worker-Konfiguration";
}

// ─── Trading ─────────────────────────────────────────────────────────────────

[TypeConverter(typeof(ExpandableObjectConverter))]
public class TradingSettings
{
    [Category("Trading")]
    [DisplayName("Modus")]
    [Description("Handelsmodus: Paper (Test-Account, Port 4002) oder Live (Port 4001)")]
    public string Mode { get; set; } = "Paper";

    [Category("Trading")]
    [DisplayName("Trading aktiv")]
    [Description("Globaler Hauptschalter. Nur wenn aktiv werden Orders ausgeführt.")]
    public bool TradingEnabled { get; set; } = false;

    [Category("Trading")]
    [DisplayName("Max. je Trade (%)")]
    [Description("Maximaler Nominalwert einer einzelnen Position in % des Kontowerts")]
    public double MaxTradePercent { get; set; } = 5.0;

    [Category("Trading")]
    [DisplayName("Max. je Modul (%)")]
    [Description("Maximaler Gesamt-Nominalwert aller Positionen eines Moduls in % des Kontowerts")]
    public double MaxPositionPercentPerModule { get; set; } = 20.0;

    [Category("Trading")]
    [DisplayName("Max. Slippage (%)")]
    [Description("Maximal erlaubte Abweichung zwischen Limit-Preis und aktuellem Kurs")]
    public double MaxSlippagePercent { get; set; } = 5.0;

    [Category("Trading")]
    [DisplayName("Gewinnziel (%)")]
    [Description("Ziel-Gewinn einer Position in Prozent (für spätere Exit-Logik)")]
    public double ProfitTargetPercent { get; set; } = 50.0;

    /// <summary>Parst den Modus in das Enum (Fallback: Paper).</summary>
    public TradingMode ParsedMode =>
        Enum.TryParse<TradingMode>(Mode, true, out var m) ? m : TradingMode.Paper;

    public override string ToString() => $"{Mode} – {(TradingEnabled ? "aktiv" : "inaktiv")}";
}

// ─── Root ────────────────────────────────────────────────────────────────────

public class AppSettings
{
    [Category("Database")]
    [DisplayName("Datenbank")]
    [Description("MySQL-Verbindungseinstellungen")]
    public DatabaseSettings  Database       { get; set; } = new();

    [Category("IBKR Gateway")]
    [DisplayName("IBKR")]
    [Description("Interactive Brokers Gateway-Verbindung (Socket API)")]
    public IBKRSettings      IBKR           { get; set; } = new();

    [Category("IBKR Web API")]
    [DisplayName("IBKR Web API")]
    [Description("Client Portal Gateway für Marktdaten")]
    public IBKRWebApiSettings IBKRWebApi    { get; set; } = new();

    [Category("Logging")]
    [DisplayName("Logging")]
    [Description("Log-Level und Datei-Einstellungen")]
    public LoggingSettings   Logging        { get; set; } = new();

    [Category("Webserver")]
    [DisplayName("Webserver")]
    [Description("Interner HTTP-Server und REST-API")]
    public WebserverSettings Webserver      { get; set; } = new();

    [Category("Workers")]
    [DisplayName("Worker-Einstellungen")]
    [Description("Zeitpläne der einzelnen Core-Worker")]
    public WorkerSettings    WorkerSettings { get; set; } = new();

    [Category("Trading")]
    [DisplayName("Trading")]
    [Description("Handelsmodus und Risiko-Parameter")]
    public TradingSettings   Trading        { get; set; } = new();
}