using System;

/// <summary>
/// 数据持久化服务接口
/// 负责应用设置、用户数据、系统配置的保存和加载
/// </summary>
public interface IDataPersistenceService : IService
{
    /// <summary>
    /// 保存系统设置
    /// </summary>
    bool SaveSettings(SystemSettings settings);
    
    /// <summary>
    /// 加载系统设置
    /// </summary>
    SystemSettings LoadSettings();
    
    /// <summary>
    /// 保存用户偏好设置
    /// </summary>
    bool SaveUserPreferences(string userId, UserPreferences preferences);
    
    /// <summary>
    /// 加载用户偏好设置
    /// </summary>
    UserPreferences LoadUserPreferences(string userId);
    
    /// <summary>
    /// 保存应用配置
    /// </summary>
    bool SaveAppConfig(AppConfig config);
    
    /// <summary>
    /// 加载应用配置
    /// </summary>
    AppConfig LoadAppConfig();
    
    /// <summary>
    /// 导出数据到指定路径
    /// </summary>
    bool ExportData(string filePath, ExportDataType dataType);
    
    /// <summary>
    /// 清除所有持久化数据
    /// </summary>
    void ClearAllData();
}

/// <summary>
/// 系统设置数据结构
/// </summary>
[System.Serializable]
public class SystemSettings
{
    public float brightness = 50f;
    public int volume = 50;
    public int muteDurationMinutes = 3;
    public DateTime systemTime = DateTime.MinValue;
    public bool useCustomSystemTime = false;
    public long customTimeOffsetTicks = 0;
    public NetworkConfig network = new NetworkConfig
    {
        Mode = NetworkMode.Dhcp,
        IPv4 = "",
        Mask = "",
        Gateway = "",
        Dns1 = "",
        Dns2 = ""
    };
    public string version = "1.0.0";
    public bool autoBackup = true;
    public int dataRetentionDays = 30;
    
    // 串口通信相关设置
    public string serialPortName = "COM1";
    public int serialBaudRate = 115200;
    public bool enableSerialCommunication = true;
    
    // BFI阈值设置
    public float bfiLowThreshold = 30f;      // BFI低值阈值，默认30
    public float bfiHighThreshold = 70f;     // BFI高值阈值，默认70
    public int bfiAlarmPriority = 2;         // BFI报警优先级，默认高优先级(2)
    public bool enableBFIAlarm = true;       // 是否启用BFI报警，默认启用
}

/// <summary>
/// 用户偏好设置
/// </summary>
[System.Serializable]
public class UserPreferences
{
    public string userId;
    public string theme = "default";
    public bool soundEnabled = true;
    public float uiScale = 1.0f;
    public string language = "zh-CN";
    public bool autoLogin = false;
    public DateTime lastLoginTime;
}

/// <summary>
/// 应用配置
/// </summary>
[System.Serializable]
public class AppConfig
{
    public string appName = "DCX系统";
    public string companyName = "瑞懿为";
    public bool debugMode = false;
    public int maxLogFiles = 10;
    public bool enableLogging = true;
    public string logLevel = "Info";
}

/// <summary>
/// 导出数据类型
/// </summary>
public enum ExportDataType
{
    Settings,
    UserData,
    AlarmRecords,
    PatientInfo,
    SystemLogs,
    All
}