namespace YZWater.Core.Services;

using YZWater.Core.Services.PlcDrivers;

/// <summary>
/// PLC 地址配置 - 定义所有 PLC 读写地址映射，支持从配置文件覆盖
/// 当前地址格式为西门子 S7 格式（VD/M/Q/I）。
/// 多协议支持：各驱动负责将 S7 地址转换为目标协议地址。
/// </summary>
public static class PlcConfig
{
    // 地址覆盖表（从配置文件加载）
    private static Dictionary<string, string> _overrides = new();

    /// <summary>
    /// 当前 PLC 协议类型
    /// </summary>
    public static PlcProtocol CurrentProtocol
    {
        get
        {
            var protocol = ConfigService.GetConfig()?.PlcProtocol ?? "SiemensS7";
            return Enum.TryParse<PlcProtocol>(protocol, out var result) ? result : PlcProtocol.SiemensS7;
        }
    }

    /// <summary>
    /// 从配置文件加载地址覆盖
    /// </summary>
    public static void LoadFromConfig()
    {
        var config = ConfigService.GetConfig();
        if (config?.PlcAddresses != null)
        {
            _overrides = config.PlcAddresses;
        }
    }

    /// <summary>
    /// 获取地址（优先使用配置覆盖值）
    /// </summary>
    private static string Addr(string tagName, string defaultAddr)
    {
        return _overrides.TryGetValue(tagName, out var addr) ? addr : defaultAddr;
    }
    // ═══════════════════════════════════════════════════════════════
    //  读取地址 (Read)
    // ═══════════════════════════════════════════════════════════════

    // ─── 水箱液位 (float) ───
    public static string Tank1Level => Addr(nameof(Tank1Level), "VD100");
    public static string Tank2Level => Addr(nameof(Tank2Level), "VD104");
    public static string Tank3Level => Addr(nameof(Tank3Level), "VD108");
    public static string Tank4Level => Addr(nameof(Tank4Level), "VD112");

    // ─── 流量 (float) ───
    public static string InflowRate => Addr(nameof(InflowRate), "VD200");
    public static string OutflowRate => Addr(nameof(OutflowRate), "VD204");

    // ─── 泵状态 (bool) ───
    public const string Pump1Run = "Q0.0";
    public const string Pump2Run = "Q0.1";
    public const string Pump3Run = "Q0.2";
    public const string Pump4Run = "Q0.3";
    public const string Pump5Run = "Q0.4";

    // ─── 泵故障 (bool) ───
    public const string Pump1Fault = "I0.0";
    public const string Pump2Fault = "I0.1";
    public const string Pump3Fault = "I0.2";
    public const string Pump4Fault = "I0.3";
    public const string Pump5Fault = "I0.4";

    // ─── 泵频率反馈 (float) ───
    public static string Pump1Freq => Addr(nameof(Pump1Freq), "VD300");
    public static string Pump2Freq => Addr(nameof(Pump2Freq), "VD304");
    public static string Pump3Freq => Addr(nameof(Pump3Freq), "VD308");
    public static string Pump4Freq => Addr(nameof(Pump4Freq), "VD312");
    public static string Pump5Freq => Addr(nameof(Pump5Freq), "VD316");

    // ─── 泵电流 (float) ───
    public static string Pump1Current => Addr(nameof(Pump1Current), "VD320");
    public static string Pump2Current => Addr(nameof(Pump2Current), "VD324");
    public static string Pump3Current => Addr(nameof(Pump3Current), "VD328");
    public static string Pump4Current => Addr(nameof(Pump4Current), "VD332");
    public static string Pump5Current => Addr(nameof(Pump5Current), "VD336");

    // ─── 风机状态 (bool) ───
    public const string Fan1Run = "Q0.5";
    public const string Fan2Run = "Q0.6";

    // ─── 风机故障 (bool) ───
    public const string Fan1Fault = "I0.5";
    public const string Fan2Fault = "I0.6";

    // ─── 阀门位置反馈 (int) ───
    public static string Valve1Position => Addr(nameof(Valve1Position), "VD500");
    public static string Valve2Position => Addr(nameof(Valve2Position), "VD504");
    public static string Valve3Position => Addr(nameof(Valve3Position), "VD508");
    public static string Valve4Position => Addr(nameof(Valve4Position), "VD512");

    // ─── 系统状态 ───
    public const string SystemMode = "M0.0"; // true=自动, false=手动

    // ═══════════════════════════════════════════════════════════════
    //  写入地址 (Write)
    // ═══════════════════════════════════════════════════════════════

    // ─── 泵启停控制 (bool) ───
    public const string Pump1Start = "Q0.0";
    public const string Pump2Start = "Q0.1";
    public const string Pump3Start = "Q0.2";
    public const string Pump4Start = "Q0.3";
    public const string Pump5Start = "Q0.4";

    // ─── 风机启停控制 (bool) ───
    public const string Fan1Start = "Q0.5";
    public const string Fan2Start = "Q0.6";

    // ─── 阀门控制 (bool) ───
    public const string Valve1Control = "Q1.0";
    public const string Valve2Control = "Q1.1";
    public const string Valve3Control = "Q1.2";
    public const string Valve4Control = "Q1.3";

    // ─── 泵频率设定 (float) ───
    public const string PumpFreqSetpoint = "VD600";

    // ═══════════════════════════════════════════════════════════════
    //  辅助方法
    // ═══════════════════════════════════════════════════════════════

    /// <summary>
    /// 获取泵运行地址
    /// </summary>
    public static string GetPumpRunAddress(int pumpIndex) => pumpIndex switch
    {
        0 => Pump1Run,
        1 => Pump2Run,
        2 => Pump3Run,
        3 => Pump4Run,
        4 => Pump5Run,
        _ => throw new ArgumentOutOfRangeException(nameof(pumpIndex))
    };

    /// <summary>
    /// 获取泵故障地址
    /// </summary>
    public static string GetPumpFaultAddress(int pumpIndex) => pumpIndex switch
    {
        0 => Pump1Fault,
        1 => Pump2Fault,
        2 => Pump3Fault,
        3 => Pump4Fault,
        4 => Pump5Fault,
        _ => throw new ArgumentOutOfRangeException(nameof(pumpIndex))
    };

    /// <summary>
    /// 获取泵频率地址
    /// </summary>
    public static string GetPumpFreqAddress(int pumpIndex) => pumpIndex switch
    {
        0 => Pump1Freq,
        1 => Pump2Freq,
        2 => Pump3Freq,
        3 => Pump4Freq,
        4 => Pump5Freq,
        _ => throw new ArgumentOutOfRangeException(nameof(pumpIndex))
    };

    /// <summary>
    /// 获取泵电流地址
    /// </summary>
    public static string GetPumpCurrentAddress(int pumpIndex) => pumpIndex switch
    {
        0 => Pump1Current,
        1 => Pump2Current,
        2 => Pump3Current,
        3 => Pump4Current,
        4 => Pump5Current,
        _ => throw new ArgumentOutOfRangeException(nameof(pumpIndex))
    };

    /// <summary>
    /// 获取阀门控制地址
    /// </summary>
    public static string GetValveControlAddress(int valveIndex) => valveIndex switch
    {
        0 => Valve1Control,
        1 => Valve2Control,
        2 => Valve3Control,
        3 => Valve4Control,
        _ => throw new ArgumentOutOfRangeException(nameof(valveIndex))
    };

    /// <summary>
    /// 获取阀门位置反馈地址
    /// </summary>
    public static string GetValvePositionAddress(int valveIndex) => valveIndex switch
    {
        0 => Valve1Position,
        1 => Valve2Position,
        2 => Valve3Position,
        3 => Valve4Position,
        _ => throw new ArgumentOutOfRangeException(nameof(valveIndex))
    };
}