using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;
using CellularManagement.Domain.Entities.Common;

namespace CellularManagement.Domain.Entities.Device;

/// <summary>
/// 蜂窝设备实体
/// </summary>
public class CellularDevice : AuditableEntity
{
    private CellularDevice() { }

    /// <summary>
    /// 设备ID
    /// </summary>
    [Key]
    public string Id { get; private set; }

    /// <summary>
    /// 设备名称
    /// </summary>
    [Required]
    [MaxLength(100)]
    public string Name { get; private set; } = null!;

    /// <summary>
    /// 设备序列号
    /// </summary>
    [Required]
    [MaxLength(50)]
    public string SerialNumber { get; private set; } = null!;

    /// <summary>
    /// 设备描述
    /// </summary>
    [MaxLength(500)]
    public string Description { get; private set; }

    /// <summary>
    /// 设备类型ID
    /// </summary>
    [Required]
    public string DeviceTypeId { get; private set; }

    /// <summary>
    /// 设备类型
    /// </summary>
    [ForeignKey(nameof(DeviceTypeId))]
    public virtual DeviceType DeviceType { get; private set; } = null!;

    /// <summary>
    /// 设备状态ID
    /// </summary>
    [Required]
    public string StatusId { get; private set; }

    /// <summary>
    /// 设备状态
    /// </summary>
    [ForeignKey(nameof(StatusId))]
    public virtual DeviceStatus Status { get; private set; } = null!;

    /// <summary>
    /// 协议版本ID
    /// </summary>
    [Required]
    public string ProtocolVersionId { get; private set; }

    /// <summary>
    /// 协议版本
    /// </summary>
    [ForeignKey(nameof(ProtocolVersionId))]
    public virtual ProtocolVersion ProtocolVersion { get; private set; } = null!;

    /// <summary>
    /// 当前固件版本
    /// </summary>
    [Required]
    [MaxLength(50)]
    public string FirmwareVersion { get; private set; } = null!;

    /// <summary>
    /// 创建时间
    /// </summary>
    public DateTime CreatedAt { get; private set; }

    /// <summary>
    /// 更新时间
    /// </summary>
    public DateTime UpdatedAt { get; private set; }

    /// <summary>
    /// 创建设备
    /// </summary>
    public static CellularDevice Create(
        string name,
        string serialNumber,
        string description,
        string deviceTypeId,
        string statusId,
        string protocolVersionId,
        string firmwareVersion)
    {
        var device = new CellularDevice
        {
            Id = Guid.NewGuid().ToString(),
            Name = name,
            SerialNumber = serialNumber,
            Description = description,
            DeviceTypeId = deviceTypeId,
            StatusId = statusId,
            ProtocolVersionId = protocolVersionId,
            FirmwareVersion = firmwareVersion,
            CreatedAt = DateTime.UtcNow,
            UpdatedAt = DateTime.UtcNow
        };

        return device;
    }

    /// <summary>
    /// 更新设备
    /// </summary>
    public void Update(
        string name,
        string serialNumber,
        string description,
        string deviceTypeId,
        string statusId,
        string protocolVersionId,
        string firmwareVersion)
    {
        Name = name;
        SerialNumber = serialNumber;
        Description = description;
        DeviceTypeId = deviceTypeId;
        StatusId = statusId;
        ProtocolVersionId = protocolVersionId;
        FirmwareVersion = firmwareVersion;
        UpdatedAt = DateTime.UtcNow;
    }
}