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https://github.com/RedWizardsLab/EchoHub.git
synced 2026-09-04 08:36:11 +02:00
Add hex color parsing helper and implement custom list sources for channels and users
- Introduced HexColorHelper for parsing hex color strings to Terminal.Gui Attributes and Colors. - Created ChannelListSource for managing and rendering a list of channels with unread counts and active indicators. - Developed UserListSource for displaying online users with per-user nickname colors. - Refactored MainWindow to utilize ChatMessageManager for handling messages and channel state. - Updated project references and removed unused content from the server project. - Adjusted tests to reflect changes in namespaces and structure.
This commit is contained in:
HueByte
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using System.Text.RegularExpressions;
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using EchoHub.Client.UI.Helpers;
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using EchoHub.Core.DTOs;
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using EchoHub.Core.Models;
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using Terminal.Gui.Drawing;
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using Terminal.Gui.Text;
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using Attribute = Terminal.Gui.Drawing.Attribute;
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namespace EchoHub.Client.UI.Chat;
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/// <summary>
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/// Owns chat message storage, formatting, and mutation.
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/// Fires <see cref="MessagesChanged"/> when a channel's message list is modified
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/// so the UI layer can refresh.
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/// </summary>
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public sealed class ChatMessageManager
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{
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private readonly Dictionary<string, List<ChatLine>> _channelMessages = [];
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private readonly Dictionary<string, int> _channelUnread = [];
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private string _currentUser = string.Empty;
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private string _currentChannel = string.Empty;
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private int _chatWidth;
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/// <summary>
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/// Fired after any mutation to a channel's messages. Parameter is the channel name.
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/// </summary>
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public event Action<string>? MessagesChanged;
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/// <summary>
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/// The currently active channel (used for unread tracking and @mention detection).
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/// </summary>
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public string CurrentChannel
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{
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get => _currentChannel;
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set => _currentChannel = value;
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}
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public string CurrentUser => _currentUser;
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public void SetCurrentUser(string username) => _currentUser = username;
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public void SetChatWidth(int width) => _chatWidth = width;
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// ── Queries ──────────────────────────────────────────────────────
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public List<ChatLine>? GetMessages(string channelName)
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{
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return _channelMessages.TryGetValue(channelName, out var messages) ? messages : null;
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}
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public int GetUnreadCount(string channelName)
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{
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return _channelUnread.TryGetValue(channelName, out var count) ? count : 0;
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}
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public void ClearUnread(string channelName)
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{
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_channelUnread[channelName] = 0;
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}
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internal Dictionary<string, int> GetUnreadCounts() => _channelUnread;
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// ── Mutations ────────────────────────────────────────────────────
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/// <summary>
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/// Format and store a received message. Increments unread count if not the active channel.
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/// </summary>
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public void AddMessage(MessageDto message)
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{
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var lines = FormatMessage(message);
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if (!_channelMessages.TryGetValue(message.ChannelName, out var messages))
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{
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messages = [];
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_channelMessages[message.ChannelName] = messages;
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}
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foreach (var line in lines)
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messages.Add(line);
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if (message.ChannelName == _currentChannel)
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{
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MessagesChanged?.Invoke(message.ChannelName);
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}
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else
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{
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_channelUnread.TryGetValue(message.ChannelName, out var count);
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_channelUnread[message.ChannelName] = count + 1;
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MessagesChanged?.Invoke(message.ChannelName);
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}
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}
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/// <summary>
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/// Add a system/informational message to a channel with colored styling.
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/// </summary>
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public void AddSystemMessage(string channelName, string text)
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{
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if (!_channelMessages.TryGetValue(channelName, out var messages))
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{
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messages = [];
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_channelMessages[channelName] = messages;
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}
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var time = DateTimeOffset.Now.ToString("HH:mm");
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var textLines = text.Split('\n');
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messages.Add(new ChatLine(
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[
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new($"[{time}] ", ChatColors.TimestampAttr),
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new($"** {textLines[0].TrimEnd('\r')}", ChatColors.SystemAttr)
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]));
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var indent = new string(' ', $"[{time}] ** ".Length);
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for (int i = 1; i < textLines.Length; i++)
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{
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var line = textLines[i].TrimEnd('\r');
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if (string.IsNullOrWhiteSpace(line)) continue;
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messages.Add(new ChatLine(
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[
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new($"{indent}{line}", ChatColors.SystemAttr)
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]));
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}
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if (channelName == _currentChannel)
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MessagesChanged?.Invoke(channelName);
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}
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/// <summary>
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/// Add a status change message to a channel with colored styling.
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/// </summary>
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public void AddStatusMessage(string channelName, string username, string status)
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{
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var time = DateTimeOffset.Now.ToString("HH:mm");
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var segments = new List<ChatSegment>
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{
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new($"[{time}] ", ChatColors.TimestampAttr),
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new($"** {username} is now {status}", ChatColors.SystemAttr)
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};
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if (!_channelMessages.TryGetValue(channelName, out var messages))
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{
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messages = [];
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_channelMessages[channelName] = messages;
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}
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messages.Add(new ChatLine(segments));
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if (channelName == _currentChannel)
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MessagesChanged?.Invoke(channelName);
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}
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/// <summary>
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/// Remove all lines associated with a specific message ID.
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/// </summary>
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public void RemoveMessage(string channelName, Guid messageId)
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{
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if (_channelMessages.TryGetValue(channelName, out var messages))
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{
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messages.RemoveAll(l => l.MessageId == messageId);
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if (channelName == _currentChannel)
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MessagesChanged?.Invoke(channelName);
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}
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}
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/// <summary>
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/// Clear all messages from a specific channel.
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/// </summary>
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public void ClearChannelMessages(string channelName)
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{
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if (_channelMessages.TryGetValue(channelName, out var messages))
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{
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messages.Clear();
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if (channelName == _currentChannel)
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MessagesChanged?.Invoke(channelName);
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}
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}
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/// <summary>
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/// Load historical messages into a channel, replacing any existing messages.
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/// </summary>
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public void LoadHistory(string channelName, List<MessageDto> messages)
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{
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var formatted = messages.SelectMany(FormatMessage).ToList();
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_channelMessages[channelName] = formatted;
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if (channelName == _currentChannel)
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MessagesChanged?.Invoke(channelName);
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}
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/// <summary>
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/// Reset all message state (used on disconnect).
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/// </summary>
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public void ClearAll()
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{
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_channelMessages.Clear();
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_channelUnread.Clear();
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_currentChannel = string.Empty;
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_currentUser = string.Empty;
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}
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// ── Formatting ───────────────────────────────────────────────────
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private List<ChatLine> FormatMessage(MessageDto message)
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{
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var time = message.SentAt.ToLocalTime().ToString("HH:mm");
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var senderName = message.SenderUsername + ":";
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var senderColor = HexColorHelper.ParseHexColor(message.SenderNicknameColor);
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var lines = new List<ChatLine>();
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switch (message.Type)
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{
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case MessageType.Image:
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lines.Add(BuildChatLine(time, senderName, senderColor, " [Image]"));
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if (!string.IsNullOrWhiteSpace(message.Content))
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{
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foreach (var artLine in message.Content.Split('\n'))
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{
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var trimmed = artLine.TrimEnd('\r');
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if (ChatLine.HasColorTags(trimmed))
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lines.Add(ChatLine.FromColoredText(" " + trimmed));
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else
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lines.Add(new ChatLine($" {trimmed}"));
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}
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}
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break;
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case MessageType.Audio:
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var audioName = message.AttachmentFileName ?? "unknown";
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var audioSize = FormatFileSize(message.AttachmentFileSize);
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var audioLine = BuildChatLineColored(time, senderName, senderColor,
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$" \u266a [Audio: {audioName}] [{audioSize}]", ChatColors.AudioAttr);
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audioLine.AttachmentUrl = message.AttachmentUrl;
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audioLine.AttachmentFileName = audioName;
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audioLine.Type = MessageType.Audio;
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lines.Add(audioLine);
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break;
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case MessageType.File:
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var fileName = message.AttachmentFileName ?? "unknown";
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var fileSize = FormatFileSize(message.AttachmentFileSize);
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var fileLine = BuildChatLineColored(time, senderName, senderColor,
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$" [File: {fileName}] [{fileSize}]", ChatColors.FileAttr);
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fileLine.AttachmentUrl = message.AttachmentUrl;
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fileLine.AttachmentFileName = fileName;
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fileLine.Type = MessageType.File;
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lines.Add(fileLine);
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break;
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case MessageType.Text:
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default:
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var displayContent = EmojiHelper.ReplaceEmoji(message.Content);
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var contentLines = displayContent.Split('\n');
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var firstLine = contentLines[0].TrimEnd('\r');
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lines.Add(BuildChatLineWithMentions(time, senderName, senderColor, $" {firstLine}"));
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var indent = new string(' ', $"[{time}] {senderName} ".Length);
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for (int i = 1; i < contentLines.Length; i++)
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{
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var contText = $"{indent}{contentLines[i].TrimEnd('\r')}";
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lines.Add(new ChatLine(ChatColors.SplitMentions(contText)));
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}
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if (message.Embeds is { Count: > 0 })
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{
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var chatWidth = _chatWidth > 0 ? _chatWidth : 80;
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foreach (var embed in message.Embeds)
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lines.AddRange(FormatEmbed(embed, indent, chatWidth));
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}
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break;
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}
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foreach (var line in lines)
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line.MessageId = message.Id;
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if (!string.IsNullOrEmpty(_currentUser) && message.Type == MessageType.Text)
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{
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var pattern = $@"@{Regex.Escape(_currentUser)}\b";
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if (Regex.IsMatch(message.Content, pattern, RegexOptions.IgnoreCase))
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{
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foreach (var line in lines)
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line.IsMention = true;
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}
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}
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return lines;
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}
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private static ChatLine BuildChatLine(string time, string senderName, Attribute? senderColor, string suffix)
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{
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var segments = new List<ChatSegment>
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{
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new($"[{time}] ", ChatColors.TimestampAttr),
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new(senderName, senderColor),
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new(suffix, null)
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};
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return new ChatLine(segments);
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}
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private static ChatLine BuildChatLineColored(string time, string senderName, Attribute? senderColor, string suffix, Attribute suffixColor)
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{
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var segments = new List<ChatSegment>
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{
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new($"[{time}] ", ChatColors.TimestampAttr),
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new(senderName, senderColor),
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new(suffix, suffixColor)
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};
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return new ChatLine(segments);
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}
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private static ChatLine BuildChatLineWithMentions(string time, string senderName, Attribute? senderColor, string suffix)
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{
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var segments = new List<ChatSegment>
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{
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new($"[{time}] ", ChatColors.TimestampAttr),
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new(senderName, senderColor),
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};
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segments.AddRange(ChatColors.SplitMentions(suffix));
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return new ChatLine(segments);
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}
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private static List<ChatLine> FormatEmbed(EmbedDto embed, string indent, int chatWidth)
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{
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var lines = new List<ChatLine>();
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const string border = "\u258f "; // ▏ + space
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const int borderCols = 2;
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int indentCols = indent.GetColumns();
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int textWidth = chatWidth - indentCols - borderCols;
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if (textWidth < 20) textWidth = 20;
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void AddTextLine(string text, Attribute? color)
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{
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lines.Add(new ChatLine(
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[
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new ChatSegment(indent, null),
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new ChatSegment(border, ChatColors.EmbedBorderAttr),
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new ChatSegment(text, color)
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]));
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}
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if (!string.IsNullOrWhiteSpace(embed.SiteName))
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AddTextLine(embed.SiteName, ChatColors.EmbedBorderAttr);
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if (!string.IsNullOrWhiteSpace(embed.Title))
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{
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foreach (var wrapped in WordWrap(embed.Title, textWidth))
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AddTextLine(wrapped, ChatColors.EmbedTitleAttr);
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}
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if (!string.IsNullOrWhiteSpace(embed.Description))
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{
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foreach (var wrapped in WordWrap(embed.Description, textWidth))
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AddTextLine(wrapped, ChatColors.EmbedDescAttr);
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}
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return lines;
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}
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private static List<string> WordWrap(string text, int maxCols)
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{
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if (maxCols <= 0)
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return [text];
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var result = new List<string>();
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var words = text.Split(' ', StringSplitOptions.RemoveEmptyEntries);
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var currentLine = "";
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foreach (var word in words)
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{
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var candidate = currentLine.Length == 0 ? word : currentLine + " " + word;
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if (candidate.GetColumns() <= maxCols)
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{
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currentLine = candidate;
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}
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else
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{
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if (currentLine.Length > 0)
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result.Add(currentLine);
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currentLine = word;
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}
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}
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if (currentLine.Length > 0)
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result.Add(currentLine);
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return result;
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}
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internal static string FormatFileSize(long? bytes)
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{
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if (bytes is null or 0)
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return "?";
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return bytes.Value switch
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{
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< 1024 => $"{bytes.Value} B",
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< 1024 * 1024 => $"{bytes.Value / 1024.0:F1} KB",
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< 1024 * 1024 * 1024 => $"{bytes.Value / (1024.0 * 1024.0):F1} MB",
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_ => $"{bytes.Value / (1024.0 * 1024.0 * 1024.0):F1} GB"
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};
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}
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}
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