namespace RelayShared.Services;

/// <summary>
/// One row in the sidebar channel list. The server computes the permission-derived fields
/// (CanPost, CanManage) per-user so the client never has to evaluate permissions itself.
/// </summary>
public sealed class ChannelItem
{
    /// <summary>Surreal record id (e.g. "channels:abc").</summary>
    public string ChannelId { get; set; } = string.Empty;

    /// <summary>Sidebar display name ("general", "welcome", etc.).</summary>
    public string Name { get; set; } = string.Empty;

    /// <summary>Drives icon and behavior: Text/Voice/File/Forum/Stage.</summary>
    public ChannelType Type { get; set; }

    /// <summary>Sidebar category label (e.g. "General"). Empty groups fall under a default "Channels" header.</summary>
    public string Group { get; set; } = string.Empty;

    /// <summary>Creation timestamp. Drives sidebar sort order (oldest → newest).</summary>
    public DateTime CreatedAt { get; set; }

    /// <summary>True if the channel is announcement-style (welcome, files). Drives the 🔒 suffix in the sidebar.</summary>
    public bool IsReadOnly { get; set; }

    /// <summary>Permission-resolved: can the receiving user send messages here. Drives input enable/disable.</summary>
    public bool CanPost { get; set; }

    /// <summary>Permission-resolved: can the receiving user edit/delete this channel. Drives context-menu visibility.</summary>
    public bool CanManage { get; set; }
}

/// <summary>
/// Server-to-client channel list. Sent in response to WsAction.GetChannels and broadcast
/// to all sessions after every channel create / delete.
/// </summary>
public sealed class SocketChannelList
{
    public SignalType Type { get; set; } = SignalType.ChannelList;

    /// <summary>Channels the receiving user is allowed to view. Permission filtering happens server-side.</summary>
    public List<ChannelItem> Channels { get; set; } = [];
}