Update HTML layout and styles

DiscordChatExporter.Core/Exporting/Writers/Html/MessageGroup.cs

@@ -1,60 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using DiscordChatExporter.Core.Discord.Data;
-
-namespace DiscordChatExporter.Core.Exporting.Writers.Html;
-
-// Used for grouping contiguous messages in HTML export
-internal partial class MessageGroup
-{
-    public User Author { get; }
-
-    public DateTimeOffset Timestamp { get; }
-
-    public IReadOnlyList<Message> Messages { get; }
-
-    public MessageReference? Reference { get; }
-
-    public Message? ReferencedMessage {get; }
-
-    public MessageGroup(
-        User author,
-        DateTimeOffset timestamp,
-        MessageReference? reference,
-        Message? referencedMessage,
-        IReadOnlyList<Message> messages)
-    {
-        Author = author;
-        Timestamp = timestamp;
-        Reference = reference;
-        ReferencedMessage = referencedMessage;
-        Messages = messages;
-    }
-}
-
-internal partial class MessageGroup
-{
-    public static bool CanJoin(Message message1, Message message2) =>
-        // Must be from the same author
-        message1.Author.Id == message2.Author.Id &&
-        // Author's name must not have changed between messages
-        string.Equals(message1.Author.FullName, message2.Author.FullName, StringComparison.Ordinal) &&
-        // Duration between messages must be 7 minutes or less
-        (message2.Timestamp - message1.Timestamp).Duration().TotalMinutes <= 7 &&
-        // Other message must not be a reply
-        message2.Reference is null;
-
-    public static MessageGroup Join(IReadOnlyList<Message> messages)
-    {
-        var first = messages.First();
-
-        return new MessageGroup(
-            first.Author,
-            first.Timestamp,
-            first.Reference,
-            first.ReferencedMessage,
-            messages
-        );
-    }
-}

DiscordChatExporter.Core/Exporting/Writers/Html/MessageGroupTemplate.cshtml

@@ -3,11 +3,14 @@
 @using System.Threading.Tasks
 @using DiscordChatExporter.Core.Discord.Data
 @using DiscordChatExporter.Core.Exporting.Writers.Html;
+@using DiscordChatExporter.Core.Utils.Extensions
 
 @namespace DiscordChatExporter.Core.Exporting.Writers.Html
 @inherits MiniRazor.TemplateBase<MessageGroupTemplateContext>
 
 @{
+    var firstMessage = Model.Messages.First();
+
     ValueTask<string> ResolveUrlAsync(string url) => Model.ExportContext.ResolveMediaUrlAsync(url);
 
     string FormatDate(DateTimeOffset date) => Model.ExportContext.FormatDate(date);
@@ -16,56 +19,78 @@
 
     string FormatEmbedMarkdown(string markdown) => Model.FormatMarkdown(markdown, false);
 
-    var userMember = Model.ExportContext.TryGetMember(Model.MessageGroup.Author.Id);
+    var userMember = Model.ExportContext.TryGetMember(firstMessage.Author.Id);
 
-    var userColor = Model.ExportContext.TryGetUserColor(Model.MessageGroup.Author.Id);
+    var userColor = Model.ExportContext.TryGetUserColor(firstMessage.Author.Id);
 
-    var userColorStyle = userColor is not null
+    var userNick = firstMessage.Author.IsBot
-        ? $"color: rgb({userColor?.R},{userColor?.G},{userColor?.B})"
+        ? firstMessage.Author.Name
+        : userMember?.Nick ?? firstMessage.Author.Name;
+
+    var referencedUserMember = firstMessage.ReferencedMessage is not null
+        ? Model.ExportContext.TryGetMember(firstMessage.ReferencedMessage.Author.Id)
         : null;
 
-    var userNick = Model.MessageGroup.Author.IsBot
+    var referencedUserColor = firstMessage.ReferencedMessage is not null
-        ? Model.MessageGroup.Author.Name
+        ? Model.ExportContext.TryGetUserColor(firstMessage.ReferencedMessage.Author.Id)
-        : userMember?.Nick ?? Model.MessageGroup.Author.Name;
-
-    var referencedUserMember = Model.MessageGroup.ReferencedMessage is not null
-        ? Model.ExportContext.TryGetMember(Model.MessageGroup.ReferencedMessage.Author.Id)
         : null;
 
-    var referencedUserColor = Model.MessageGroup.ReferencedMessage is not null
+    var referencedUserNick = firstMessage.ReferencedMessage is not null
-        ? Model.ExportContext.TryGetUserColor(Model.MessageGroup.ReferencedMessage.Author.Id)
+        ? firstMessage.ReferencedMessage.Author.IsBot
-        : null;
+            ? firstMessage.ReferencedMessage.Author.Name
-
+            : referencedUserMember?.Nick ?? firstMessage.ReferencedMessage.Author.Name
-    var referencedUserColorStyle = referencedUserColor is not null
-        ? $"color: rgb({referencedUserColor?.R},{referencedUserColor?.G},{referencedUserColor?.B})"
-        : null;
-
-    var referencedUserNick = Model.MessageGroup.ReferencedMessage is not null
-        ? Model.MessageGroup.ReferencedMessage.Author.IsBot
-            ? Model.MessageGroup.ReferencedMessage.Author.Name
-            : referencedUserMember?.Nick ?? Model.MessageGroup.ReferencedMessage.Author.Name
         : null;
 }
 
 <div class="chatlog__message-group">
-    @{/* Referenced message */}
+@for (var i = 0; i < Model.Messages.Count; i++)
-    @if (Model.MessageGroup.Reference is not null)
+{
+    var isFirst = i == 0;
+    var message = Model.Messages[i];
+
+    <div id="chatlog__message-container-@message.Id" class="chatlog__message-container @(message.IsPinned ? "chatlog__message-container--pinned" : null)" data-message-id="@message.Id">
+        <div class="chatlog__message">
+            @{/* Left side */}
+            <div class="chatlog__message-aside">
+                @if (isFirst)
+                {
+                    // Reference symbol
+                    if (message.Reference is not null)
                     {
                         <div class="chatlog__reference-symbol"></div>
-        <div class="chatlog__reference">
-            @if (Model.MessageGroup.ReferencedMessage is not null)
-            {
-                <img class="chatlog__reference-avatar" src="@await ResolveUrlAsync(Model.MessageGroup.ReferencedMessage.Author.AvatarUrl)" alt="Avatar" loading="lazy">
-                <span class="chatlog__reference-name" title="@Model.MessageGroup.ReferencedMessage.Author.FullName" style="@referencedUserColorStyle">@referencedUserNick</span>
-                <div class="chatlog__reference-content">
-                    <span class="chatlog__reference-link" onclick="scrollToMessage(event, '@Model.MessageGroup.ReferencedMessage.Id')">
-                        @if (!string.IsNullOrWhiteSpace(Model.MessageGroup.ReferencedMessage.Content))
-                        {
-                            @Raw(FormatEmbedMarkdown(Model.MessageGroup.ReferencedMessage.Content))
                     }
-                        else if (Model.MessageGroup.ReferencedMessage.Attachments.Any() || Model.MessageGroup.ReferencedMessage.Embeds.Any())
+
+                    // Avatar
+                    <img class="chatlog__avatar" src="@await ResolveUrlAsync(message.Author.AvatarUrl)" alt="Avatar" loading="lazy">
+                }
+                else
                 {
-                            <em>Click to see attachment</em> <span>🖼️</span>
+                    <div class="chatlog__short-timestamp" title="@FormatDate(message.Timestamp)">@message.Timestamp.ToLocalString("t")</div>
+                }
+            </div>
+
+            @{/* Right side */}
+            <div class="chatlog__message-primary">
+                @if (isFirst)
+                {
+                    // Reference
+                    if (message.Reference is not null)
+                    {
+                        <div class="chatlog__reference">
+                            @if (message.ReferencedMessage is not null)
+                            {
+                                <img class="chatlog__reference-avatar" src="@await ResolveUrlAsync(message.ReferencedMessage.Author.AvatarUrl)" alt="Avatar" loading="lazy">
+                                <div class="chatlog__reference-author" style="@(referencedUserColor is not null ? $"color: rgb({referencedUserColor.Value.R}, {referencedUserColor.Value.G}, {referencedUserColor.Value.B})" : null)" title="@message.ReferencedMessage.Author.FullName">@referencedUserNick</div>
+                                <div class="chatlog__reference-content">
+                                    <span class="chatlog__reference-link" onclick="scrollToMessage(event, '@message.ReferencedMessage.Id')">
+                                        @if (!string.IsNullOrWhiteSpace(message.ReferencedMessage.Content))
+                                        {
+                                            @Raw(FormatEmbedMarkdown(message.ReferencedMessage.Content))
+                                        }
+                                        else if (message.ReferencedMessage.Attachments.Any() || message.ReferencedMessage.Embeds.Any())
+                                        {
+                                            <em>Click to see attachment</em>
+                                            <span>🖼️</span>
                                         }
                                         else
                                         {
@@ -73,57 +98,50 @@
                                         }
                                     </span>
 
-                    @if (Model.MessageGroup.ReferencedMessage.EditedTimestamp is not null)
+                                    @if (message.ReferencedMessage.EditedTimestamp is not null)
                                     {
-                        <span class="chatlog__reference-edited-timestamp" title="@FormatDate(Model.MessageGroup.ReferencedMessage.EditedTimestamp.Value)">(edited)</span>
+                                        <span class="chatlog__reference-edited-timestamp" title="@FormatDate(message.ReferencedMessage.EditedTimestamp.Value)">(edited)</span>
                                     }
                                 </div>
                             }
                             else
                             {
-                <span class="chatlog__reference-unknown">
+                                <div class="chatlog__reference-unknown">
                                     Original message was deleted or could not be loaded.
-                </span>
+                                </div>
                             }
                         </div>
                     }
 
-    @{/* Avatar */}
+                    // Header
-    <div class="chatlog__author-avatar-container">
+                    <div class="chatlog__header">
-        <img class="chatlog__author-avatar" src="@await ResolveUrlAsync(Model.MessageGroup.Author.AvatarUrl)" alt="Avatar" loading="lazy">
-    </div>
-
-    <div class="chatlog__messages">
                         @{/* Author name */}
-        <span class="chatlog__author-name" title="@Model.MessageGroup.Author.FullName" data-user-id="@Model.MessageGroup.Author.Id" style="@userColorStyle">@userNick</span>
+                        <span class="chatlog__author" style="@(userColor is not null ? $"color: rgb({userColor.Value.R}, {userColor.Value.G}, {userColor.Value.B})" : null)" title="@message.Author.FullName" data-user-id="@message.Author.Id">@userNick</span>
 
-        @{/* Bot tag */}
+                        @{/* Bot label */}
-        @if (Model.MessageGroup.Author.IsBot)
+                        @if (message.Author.IsBot)
                         {
-            <span class="chatlog__bot-tag">BOT</span>
+                            <span class="chatlog__bot-label">BOT</span>
                         }
 
-        @{/* Message timestamp */}
+                        @{/* Timestamp */}
-        <span class="chatlog__timestamp">@FormatDate(Model.MessageGroup.Timestamp)</span>
+                        <span class="chatlog__timestamp">@FormatDate(message.Timestamp)</span>
+                    </div>
+                }
 
-        @{/* Messages in a group */}
+                @{/* Content */}
-        @foreach (var message in Model.MessageGroup.Messages)
-        {
-            <div class="chatlog__message @(message.IsPinned ? "chatlog__message--pinned" : null)" data-message-id="@message.Id" id="message-@message.Id" title="Message sent: @FormatDate(message.Timestamp)">
                 @if (!string.IsNullOrWhiteSpace(message.Content) || message.EditedTimestamp is not null)
                 {
-                    <div class="chatlog__content">
+                    <div class="chatlog__content chatlog__markdown">
-                        <div class="markdown">
+                        @{/* Text */}
-                            @{/* Message content */}
+                        <span class="chatlog__markdown-preserve">@Raw(FormatMarkdown(message.Content))</span>
-                            <span class="preserve-whitespace">@Raw(FormatMarkdown(message.Content))</span>
 
-                            @{/* Edit timestamp */}
+                        @{/* Edited timestamp */}
                         @if (message.EditedTimestamp is not null)
                         {
                             <span class="chatlog__edited-timestamp" title="@FormatDate(message.EditedTimestamp.Value)">(edited)</span>
                         }
                     </div>
-                    </div>
                 }
 
                 @{/* Attachments */}
@@ -159,7 +177,7 @@
                         {
                             <div class="chatlog__attachment-generic">
                                 <svg class="chatlog__attachment-generic-icon">
-                                    <use href="#icon-attachment" />
+                                    <use href="#attachment-icon"/>
                                 </svg>
                                 <div class="chatlog__attachment-generic-name">
                                     <a href="@await ResolveUrlAsync(attachment.Url)">
@@ -202,7 +220,7 @@
                             @{/* Color pill */}
                             @if (embed.Color is not null)
                             {
-                                <div class="chatlog__embed-color-pill" style="background-color: rgba(@embed.Color?.R,@embed.Color?.G,@embed.Color?.B,@embed.Color?.A)"></div>
+                                <div class="chatlog__embed-color-pill" style="background-color: rgba(@embed.Color.Value.R, @embed.Color.Value.G, @embed.Color.Value.B, @embed.Color.Value.A)"></div>
                             }
                             else
                             {
@@ -223,10 +241,10 @@
 
                                                 @if (!string.IsNullOrWhiteSpace(embed.Author.Name))
                                                 {
-                                                    <span class="chatlog__embed-author-name">
+                                                    <span class="chatlog__embed-author">
                                                         @if (!string.IsNullOrWhiteSpace(embed.Author.Url))
                                                         {
-                                                            <a class="chatlog__embed-author-name-link" href="@embed.Author.Url">@embed.Author.Name</a>
+                                                            <a class="chatlog__embed-author-link" href="@embed.Author.Url">@embed.Author.Name</a>
                                                         }
                                                         else
                                                         {
@@ -244,12 +262,12 @@
                                                 @if (!string.IsNullOrWhiteSpace(embed.Url))
                                                 {
                                                     <a class="chatlog__embed-title-link" href="@embed.Url">
-                                                        <div class="markdown preserve-whitespace">@Raw(FormatEmbedMarkdown(embed.Title))</div>
+                                                        <div class="chatlog__markdown chatlog__markdown-preserve">@Raw(FormatEmbedMarkdown(embed.Title))</div>
                                                     </a>
                                                 }
                                                 else
                                                 {
-                                                    <div class="markdown preserve-whitespace">@Raw(FormatEmbedMarkdown(embed.Title))</div>
+                                                    <div class="chatlog__markdown chatlog__markdown-preserve">@Raw(FormatEmbedMarkdown(embed.Title))</div>
                                                 }
                                             </div>
                                         }
@@ -270,7 +288,7 @@
                             @{/* Color pill */}
                             @if (embed.Color is not null)
                             {
-                                <div class="chatlog__embed-color-pill" style="background-color: rgba(@embed.Color?.R,@embed.Color?.G,@embed.Color?.B,@embed.Color?.A)"></div>
+                                <div class="chatlog__embed-color-pill" style="background-color: rgba(@embed.Color.Value.R, @embed.Color.Value.G, @embed.Color.Value.B, @embed.Color.Value.A)"></div>
                             }
                             else
                             {
@@ -291,10 +309,10 @@
 
                                                 @if (!string.IsNullOrWhiteSpace(embed.Author.Name))
                                                 {
-                                                    <span class="chatlog__embed-author-name">
+                                                    <span class="chatlog__embed-author">
                                                         @if (!string.IsNullOrWhiteSpace(embed.Author.Url))
                                                         {
-                                                            <a class="chatlog__embed-author-name-link" href="@embed.Author.Url">@embed.Author.Name</a>
+                                                            <a class="chatlog__embed-author-link" href="@embed.Author.Url">@embed.Author.Name</a>
                                                         }
                                                         else
                                                         {
@@ -312,12 +330,12 @@
                                                 @if (!string.IsNullOrWhiteSpace(embed.Url))
                                                 {
                                                     <a class="chatlog__embed-title-link" href="@embed.Url">
-                                                        <div class="markdown preserve-whitespace">@Raw(FormatEmbedMarkdown(embed.Title))</div>
+                                                        <div class="chatlog__markdown chatlog__markdown-preserve">@Raw(FormatEmbedMarkdown(embed.Title))</div>
                                                     </a>
                                                 }
                                                 else
                                                 {
-                                                    <div class="markdown preserve-whitespace">@Raw(FormatEmbedMarkdown(embed.Title))</div>
+                                                    <div class="chatlog__markdown chatlog__markdown-preserve">@Raw(FormatEmbedMarkdown(embed.Title))</div>
                                                 }
                                             </div>
                                         }
@@ -326,7 +344,7 @@
                                         @if (!string.IsNullOrWhiteSpace(embed.Description))
                                         {
                                             <div class="chatlog__embed-description">
-                                                <div class="markdown preserve-whitespace">@Raw(FormatEmbedMarkdown(embed.Description))</div>
+                                                <div class="chatlog__markdown chatlog__markdown-preserve">@Raw(FormatEmbedMarkdown(embed.Description))</div>
                                             </div>
                                         }
 
@@ -340,14 +358,14 @@
                                                         @if (!string.IsNullOrWhiteSpace(field.Name))
                                                         {
                                                             <div class="chatlog__embed-field-name">
-                                                                <div class="markdown preserve-whitespace">@Raw(FormatEmbedMarkdown(field.Name))</div>
+                                                                <div class="chatlog__markdown chatlog__markdown-preserve">@Raw(FormatEmbedMarkdown(field.Name))</div>
                                                             </div>
                                                         }
 
                                                         @if (!string.IsNullOrWhiteSpace(field.Value))
                                                         {
                                                             <div class="chatlog__embed-field-value">
-                                                                <div class="markdown preserve-whitespace">@Raw(FormatEmbedMarkdown(field.Value))</div>
+                                                                <div class="chatlog__markdown chatlog__markdown-preserve">@Raw(FormatEmbedMarkdown(field.Value))</div>
                                                             </div>
                                                         }
                                                     </div>
@@ -434,13 +452,14 @@
                         @foreach (var reaction in message.Reactions)
                         {
                             <div class="chatlog__reaction" title="@reaction.Emoji.Code">
-                                <img class="emoji emoji--small" alt="@reaction.Emoji.Name" src="@await ResolveUrlAsync(reaction.Emoji.ImageUrl)" loading="lazy">
+                                <img class="chatlog__emoji chatlog__emoji--small" alt="@reaction.Emoji.Name" src="@await ResolveUrlAsync(reaction.Emoji.ImageUrl)" loading="lazy">
                                 <span class="chatlog__reaction-count">@reaction.Count</span>
                             </div>
                         }
                     </div>
                 }
             </div>
-        }
         </div>
+    </div>
+}
 </div>

DiscordChatExporter.Core/Exporting/Writers/Html/MessageGroupTemplateContext.cs

@@ -1,4 +1,6 @@
-using DiscordChatExporter.Core.Exporting.Writers.MarkdownVisitors;
+using System.Collections.Generic;
+using DiscordChatExporter.Core.Discord.Data;
+using DiscordChatExporter.Core.Exporting.Writers.MarkdownVisitors;
 
 namespace DiscordChatExporter.Core.Exporting.Writers.Html;
 
@@ -6,12 +8,12 @@ internal class MessageGroupTemplateContext
 {
     public ExportContext ExportContext { get; }
 
-    public MessageGroup MessageGroup { get; }
+    public IReadOnlyList<Message> Messages { get; }
 
-    public MessageGroupTemplateContext(ExportContext exportContext, MessageGroup messageGroup)
+    public MessageGroupTemplateContext(ExportContext exportContext, IReadOnlyList<Message> messages)
     {
         ExportContext = exportContext;
-        MessageGroup = messageGroup;
+        Messages = messages;
     }
 
     public string FormatMarkdown(string? markdown, bool isJumboAllowed = true) =>

DiscordChatExporter.Core/Exporting/Writers/Html/PreambleTemplate.cshtml

@@ -32,36 +32,38 @@
     @{/* Styling */}
     <style>
         @@font-face {
-            font-family: Whitney;
             src: url(@await ResolveUrlAsync(GetFontUrl(300)));
+            font-family: Whitney;
             font-weight: 300;
         }
 
         @@font-face {
-            font-family: Whitney;
             src: url(@await ResolveUrlAsync(GetFontUrl(400)));
+            font-family: Whitney;
             font-weight: 400;
         }
 
         @@font-face {
-            font-family: Whitney;
             src: url(@await ResolveUrlAsync(GetFontUrl(500)));
+            font-family: Whitney;
             font-weight: 500;
         }
 
         @@font-face {
-            font-family: Whitney;
             src: url(@await ResolveUrlAsync(GetFontUrl(600)));
+            font-family: Whitney;
             font-weight: 600;
         }
 
         @@font-face {
-            font-family: Whitney;
             src: url(@await ResolveUrlAsync(GetFontUrl(700)));
+            font-family: Whitney;
             font-weight: 700;
         }
 
         body {
+            margin: 0;
+            padding: 0;
             background-color: @Themed("#36393e", "#ffffff");
             color: @Themed("#dcddde", "#23262a");
             font-family: Whitney, "Helvetica Neue", Helvetica, Arial, sans-serif;
@@ -80,114 +82,15 @@
 
         img {
             object-fit: contain;
-        }
+            image-rendering: high-quality;
-
+            image-rendering: -webkit-optimize-contrast;
-        .markdown {
-            max-width: 100%;
-            line-height: 1.3;
-            overflow-wrap: break-word;
-        }
-
-        .preserve-whitespace {
-            white-space: pre-wrap;
-        }
-
-        .spoiler-text {
-            background-color: @Themed("rgba(255, 255, 255, 0.1)", "rgba(0, 0, 0, 0.1)");
-            border-radius: 3px;
-        }
-
-        .spoiler-text--hidden {
-            cursor: pointer;
-            background-color: @Themed("#202225", "#b9bbbe");
-            color: rgba(0, 0, 0, 0);
-        }
-
-        .spoiler-text--hidden:hover {
-            background-color: @Themed("rgba(32, 34, 37, 0.8)", "rgba(185, 187, 190, 0.8)");
-        }
-
-        .spoiler-text--hidden::selection {
-            color: rgba(0, 0, 0, 0);
-        }
-
-        .quote {
-            display: flex;
-            margin: 0.05em 0;
-        }
-
-        .quote-border {
-            margin-right: 0.5em;
-            border: 2px solid @Themed("#4f545c", "#c7ccd1");
-            border-radius: 3px;
-        }
-
-        .pre {
-            background-color: @Themed("#2f3136", "#f9f9f9");
-            font-family: "Consolas", "Courier New", Courier, monospace;
-        }
-
-        .pre--multiline {
-            margin-top: 0.25em;
-            padding: 0.5em;
-            border: 2px solid @Themed("#282b30", "#f3f3f3");
-            border-radius: 5px;
-            color: @Themed("#b9bbbe", "#657b83");
-        }
-
-        @{/* Override Highlight.js styles with a higher specificity selector */}
-        .pre--multiline.hljs {
-            background-color: @Themed("#2f3136", "#f9f9f9");
-            color: @Themed("#b9bbbe", "#657b83");
-        }
-
-        .pre--inline {
-            padding: 2px;
-            border-radius: 3px;
-            font-size: 0.85em;
-        }
-
-        .mention {
-            border-radius: 3px;
-            padding: 0 2px;
-            color: @Themed("#dee0fc", "#505cdc");
-            background-color: @Themed("rgba(88, 101, 242, .3)", "rgba(88, 101, 242, .15)");
-            font-weight: 500;
-        }
-
-        .mention:hover {
-            background-color: #5865f2;
-            color: #ffffff
-        }
-
-        .timestamp {
-            border-radius: 3px;
-            padding: 0 2px;
-            background-color: @Themed("rgba(255, 255, 255, 0.06)", "rgba(6, 6, 7, 0.08)");
-        }
-
-        .emoji {
-            width: 1.325em;
-            height: 1.325em;
-            margin: 0 0.06em;
-            vertical-align: -0.4em;
-        }
-
-        .emoji--small {
-            width: 1em;
-            height: 1em;
-        }
-
-        .emoji--large {
-            width: 2.8em;
-            height: 2.8em;
         }
 
         .preamble {
             display: grid;
-            margin: 0 0.3em 0.6em 0.3em;
-            max-width: 100%;
             grid-template-columns: auto 1fr;
+            max-width: 100%;
+            padding: 0.6rem;
         }
 
         .preamble__guild-icon-container {
@@ -201,59 +104,114 @@
 
         .preamble__entries-container {
             grid-column: 2;
-            margin-left: 0.6em;
+            margin-left: 0.6rem;
         }
 
         .preamble__entry {
-            font-size: 1.4em;
+            margin-bottom: 0.15rem;
             color: @Themed("#ffffff", "#2f3136");
+            font-size: 1.4rem;
         }
 
         .preamble__entry--small {
-            font-size: 1em;
+            font-size: 1rem;
         }
 
         .chatlog {
-            max-width: 100%;
+            margin-top: 0.6rem;
+            width: 100%;
+            border-top: 1px solid @Themed("rgba(255, 255, 255, 0.1)", "#eceeef");
+            border-bottom: 1px solid @Themed("rgba(255, 255, 255, 0.1)", "#eceeef");
         }
 
         .chatlog__message-group {
+            margin-bottom: 1rem;
+        }
+
+        .chatlog__message-container {
+            background-color: transparent;
+            transition: background-color 1s ease;
+        }
+
+        .chatlog__message-container--highlighted {
+            background-color: @Themed("rgba(114, 137, 218, 0.2)", "rgba(114, 137, 218, 0.2)");
+        }
+
+        .chatlog__message-container--pinned {
+            background-color: @Themed("rgba(249, 168, 37, 0.05)", "rgba(249, 168, 37, 0.05)");
+        }
+
+        .chatlog__message {
             display: grid;
-            margin: 0 0.6em;
-            padding: 0.9em 0;
-            border-top: 1px solid @Themed("rgba(255, 255, 255, 0.1)", "#eceeef");
             grid-template-columns: auto 1fr;
+            padding: 0.25rem 0;
+            direction: ltr;
+            unicode-bidi: bidi-override;
+        }
+
+        .chatlog__message:hover {
+            background-color: @Themed("#32353b", "#fafafa");
+        }
+
+        .chatlog__message:hover .chatlog__short-timestamp {
+            display: block;
+        }
+
+        .chatlog__message-aside {
+            grid-column: 1;
+            width: 72px;
+            padding: 0.15rem 0.15rem 0 0.15rem;
+            text-align: center;
         }
 
         .chatlog__reference-symbol {
-            grid-column: 1;
+            height: 12px;
-            margin: 8px 4px 4px 18px;
+            margin: 4px 4px 4px 36px;
             border-left: 2px solid @Themed("#4f545c", "#c7ccd1");
             border-top: 2px solid @Themed("#4f545c", "#c7ccd1");
             border-radius: 8px 0 0 0;
         }
 
+        .chatlog__avatar {
+            width: 40px;
+            height: 40px;
+            border-radius: 50%;
+        }
+
+        .chatlog__short-timestamp {
+            display: none;
+            color: @Themed("#a3a6aa", "#5e6772");
+            font-size: 0.75rem;
+            font-weight: 500;
+            direction: ltr;
+            unicode-bidi: bidi-override;
+        }
+
+        .chatlog__message-primary {
+            grid-column: 2;
+            min-width: 0;
+        }
+
         .chatlog__reference {
             display: flex;
-            grid-column: 2;
+            margin-bottom: 0.15rem;
-            margin-bottom: 0.25em;
+            align-items: center;
-            font-size: 0.875em;
+            color: @Themed("#b5b6b8", "#5f5f60");
+            font-size: 0.875rem;
             white-space: nowrap;
             overflow: hidden;
             text-overflow: ellipsis;
-            align-items: center;
-            color: @Themed("#b5b6b8", "#5f5f60");
         }
 
         .chatlog__reference-avatar {
-            border-radius: 50%;
             width: 16px;
             height: 16px;
-            margin-right: 0.25em;
+            margin-right: 0.25rem;
+            border-radius: 50%;
         }
 
-        .chatlog__reference-name {
+        .chatlog__reference-author {
-            margin-right: 0.3em;
+            margin-right: 0.3rem;
             font-weight: 600;
         }
 
@@ -262,13 +220,8 @@
             text-overflow: ellipsis;
         }
 
-        .chatlog__reference-content a:hover {
-            text-decoration: none;
-        }
-
         .chatlog__reference-link {
             cursor: pointer;
-            color: @Themed("#b5b6b8", "#5f5f60");
         }
 
         .chatlog__reference-link * {
@@ -276,83 +229,75 @@
             pointer-events: none;
         }
 
+        .chatlog__reference-link .hljs {
+            display: inline;
+        }
+
         .chatlog__reference-link:hover {
             color: @Themed("#ffffff", "#2f3136");
         }
 
-        .chatlog__reference-link:hover *:not(.spoiler-text) {
+        .chatlog__reference-link:hover *:not(.chatlog__markdown-spoiler) {
-            color: @Themed("#ffffff", "#2f3136");
+            color: inherit;
         }
 
         .chatlog__reference-edited-timestamp {
-            margin-left: 0.25em;
+            margin-left: 0.25rem;
-            font-size: 0.8em;
+            color: @Themed("#a3a6aa", "#5e6772");
-            unicode-bidi: bidi-override;
+            font-size: 0.75rem;
-            color: @Themed("rgba(255, 255, 255, 0.2)", "#747f8d");
+            font-weight: 500;
-        }
-
-        .chatlog__author-avatar-container {
-            grid-column: 1;
-            width: 40px;
-            height: 40px;
-            margin-right: 16px;
-        }
-
-        .chatlog__author-avatar {
-            border-radius: 50%;
-            width: 40px;
-            height: 40px;
-            image-rendering: high-quality;
-        }
-
-        .chatlog__messages {
-            grid-column: 2;
-            min-width: 50%;
             direction: ltr;
+            unicode-bidi: bidi-override;
         }
 
-        .chatlog__author-name {
+        .chatlog__header {
+            margin-bottom: 0.25rem;
+        }
+
+        .chatlog__author {
             font-weight: @Themed("500", "600");
             color: @Themed("#ffffff", "#2f3136");
         }
 
+        .chatlog__bot-label {
+            position: relative;
+            top: -.1rem;
+            margin-left: 0.3rem;
+            padding: 0.05rem 0.3rem;
+            border-radius: 3px;
+            background-color: #5865F2;
+            color: #ffffff;
+            font-size: 0.625rem;
+            font-weight: 500;
+            line-height: 1.3;
+        }
+
         .chatlog__timestamp {
-            margin-left: 0.3em;
+            margin-left: 0.3rem;
-            font-size: 0.75em;
+            color: @Themed("#a3a6aa", "#5e6772");
+            font-size: 0.75rem;
+            font-weight: 500;
             direction: ltr;
             unicode-bidi: bidi-override;
-            color: @Themed("rgba(255, 255, 255, 0.2)", "#747f8d");
-        }
-
-        .chatlog__message {
-            padding: 0.1em 0.3em;
-            margin: 0 -0.3em;
-            background-color: transparent;
-            transition: background-color 1s ease;
-        }
-
-        .chatlog__message--highlighted {
-            background-color: @Themed("rgba(114, 137, 218, 0.2)", "rgba(114, 137, 218, 0.2)");
-        }
-
-        .chatlog__message--pinned {
-            background-color: @Themed("rgba(249, 168, 37, 0.05)", "rgba(249, 168, 37, 0.05)");
         }
 
         .chatlog__content {
-            font-size: 0.95em;
+            padding-right: 1rem;
+            font-size: 0.95rem;
             word-wrap: break-word;
         }
 
         .chatlog__edited-timestamp {
-            margin-left: 0.15em;
+            margin-left: 0.15rem;
-            font-size: 0.8em;
+            color: @Themed("#a3a6aa", "#5e6772");
+            font-size: 0.75rem;
+            font-weight: 500;
         }
 
         .chatlog__attachment {
-            display: inline-block;
             position: relative;
-            margin-top: 0.3em;
+            width: fit-content;
+            margin-top: 0.3rem;
             border-radius: 3px;
             overflow: hidden;
         }
@@ -368,18 +313,18 @@
 
         .chatlog__attachment-spoiler-caption {
             display: none;
-            z-index: 999;
             position: absolute;
             left: 50%;
             top: 50%;
-            transform: translate(-50%, -50%);
+            z-index: 999;
-            padding: 0.4em 0.8em;
+            padding: 0.4rem 0.8rem;
-            background-color: rgba(0, 0, 0, 0.9);
             border-radius: 20px;
+            transform: translate(-50%, -50%);
+            background-color: rgba(0, 0, 0, 0.9);
             color: #dcddde;
-            font-size: 0.9em;
+            font-size: 0.9rem;
             font-weight: 600;
-            letter-spacing: 0.05em;
+            letter-spacing: 0.05rem;
         }
 
         .chatlog__attachment--hidden .chatlog__attachment-spoiler-caption {
@@ -391,9 +336,9 @@
         }
 
         .chatlog__attachment-media {
-            vertical-align: top;
             max-width: 45vw;
             max-height: 500px;
+            vertical-align: top;
             border-radius: 3px;
         }
 
@@ -402,13 +347,13 @@
         }
 
         .chatlog__attachment-generic {
-            width: 100%;
             max-width: 520px;
+            width: 100%;
             height: 40px;
             padding: 10px;
-            background-color: @Themed("#2f3136", "#f2f3f5");
             border: 1px solid @Themed("#292b2f", "#ebedef");
             border-radius: 3px;
+            background-color: @Themed("#2f3136", "#f2f3f5");
             overflow: hidden;
         }
 
@@ -434,19 +379,15 @@
             text-overflow: ellipsis;
         }
 
-        .chatlog__edited-timestamp {
-            color: @Themed("rgba(255, 255, 255, 0.2)", "#747f8d");
-        }
-
         .chatlog__embed {
             display: flex;
-            margin-top: 0.3em;
+            margin-top: 0.3rem;
             max-width: 520px;
         }
 
         .chatlog__embed-color-pill {
             flex-shrink: 0;
-            width: 0.25em;
+            width: 0.25rem;
             border-top-left-radius: 3px;
             border-bottom-left-radius: 3px;
         }
@@ -458,11 +399,11 @@
         .chatlog__embed-content-container {
             display: flex;
             flex-direction: column;
-            padding: 0.5em 0.6em;
+            padding: 0.5rem 0.6rem;
-            background-color: @Themed("rgba(46, 48, 54, 0.3)", "rgba(249, 249, 249, 0.3)");
             border: 1px solid @Themed("rgba(46, 48, 54, 0.6)", "rgba(204, 204, 204, 0.3)");
             border-top-right-radius: 3px;
             border-bottom-right-radius: 3px;
+            background-color: @Themed("rgba(46, 48, 54, 0.3)", "rgba(249, 249, 249, 0.3)");
         }
 
         .chatlog__embed-content {
@@ -476,83 +417,83 @@
 
         .chatlog__embed-author {
             display: flex;
-            margin-bottom: 0.3em;
+            margin-bottom: 0.3rem;
             align-items: center;
         }
 
         .chatlog__embed-author-icon {
-            margin-right: 0.5em;
             width: 20px;
             height: 20px;
+            margin-right: 0.5rem;
             border-radius: 50%;
         }
 
-        .chatlog__embed-author-name {
+        .chatlog__embed-author {
-            font-size: 0.875em;
+            color: @Themed("#ffffff", "#4f545c")
+            font-size: 0.875rem;
             font-weight: 600;
             direction: ltr;
             unicode-bidi: bidi-override;
-            color: @Themed("#ffffff", "#4f545c")
         }
 
-        .chatlog__embed-author-name-link {
+        .chatlog__embed-author-link {
             color: @Themed("#ffffff", "#4f545c");
         }
 
         .chatlog__embed-title {
-            margin-bottom: 0.2em;
+            margin-bottom: 0.75rem;
-            font-size: 0.875em;
-            font-weight: 600;
             color: @Themed("#ffffff", "#4f545c");
+            font-size: 0.875rem;
+            font-weight: 600;
         }
 
         .chatlog__embed-description {
-            font-weight: 500;
-            font-size: 0.85em;
             color: @Themed("#dcddde", "#2e3338");
+            font-weight: 500;
+            font-size: 0.85rem;
         }
 
         .chatlog__embed-fields {
             display: flex;
             flex-wrap: wrap;
-            gap: 0 0.5em;
+            gap: 0 0.5rem;
         }
 
         .chatlog__embed-field {
             flex: 0;
             min-width: 100%;
             max-width: 506px;
-            padding-top: 0.6em;
+            padding-top: 0.6rem;
-            font-size: 0.875em;
+            font-size: 0.875rem;
         }
 
         .chatlog__embed-field--inline {
             flex: 1;
             flex-basis: auto;
-            min-width: 150px;
+            min-width: 50px;
         }
 
         .chatlog__embed-field-name {
-            margin-bottom: 0.2em;
+            margin-bottom: 0.2rem;
-            font-weight: 600;
             color: @Themed("#ffffff", "#36393e");
+            font-weight: 600;
         }
 
         .chatlog__embed-field-value {
-            font-weight: 500;
             color: @Themed("#dcddde", "#2e3338");
+            font-weight: 500;
         }
 
         .chatlog__embed-thumbnail {
             flex: 0;
-            margin-left: 1.2em;
             max-width: 80px;
             max-height: 80px;
+            margin-left: 1.2rem;
             border-radius: 3px;
         }
 
         .chatlog__embed-image-container {
-            margin-top: 0.6em;
+            margin-top: 0.6rem;
         }
 
         .chatlog__embed-image {
@@ -562,28 +503,28 @@
         }
 
         .chatlog__embed-footer {
-            margin-top: 0.6em;
+            margin-top: 0.6rem;
             color: @Themed("#dcddde", "#2e3338");
         }
 
         .chatlog__embed-footer-icon {
-            margin-right: 0.2em;
             width: 20px;
             height: 20px;
+            margin-right: 0.2rem;
             border-radius: 50%;
             vertical-align: middle;
         }
 
         .chatlog__embed-footer-text {
             vertical-align: middle;
-            font-size: 0.75em;
+            font-size: 0.75rem;
             font-weight: 500;
         }
 
         .chatlog__embed-plainimage {
-            vertical-align: top;
             max-width: 45vw;
             max-height: 500px;
+            vertical-align: top;
             border-radius: 3px;
         }
 
@@ -592,7 +533,7 @@
         }
 
         .chatlog__embed-youtube-container {
-            margin-top: 0.6em;
+            margin-top: 0.6rem;
         }
 
         .chatlog__embed-youtube {
@@ -616,51 +557,132 @@
 
         .chatlog__reaction {
             display: flex;
-            align-items: center;
+            margin: 0.35rem 0.1rem 0.1rem 0;
-            margin: 0.35em 0.1em 0.1em 0;
+            padding: 0.125rem 0.375rem;
-            padding: .125rem .375rem;
+            border: 1px solid transparent;
-            background-color: @Themed("#2f3136", "#f2f3f5");
             border-radius: 8px;
-            border-color: transparent;
+            background-color: @Themed("#2f3136", "#f2f3f5");
-            border-width: 1px;
+            align-items: center;
-            border-style: solid;
         }
 
         .chatlog__reaction:hover {
-            border-color: @Themed("hsla(0,0%,100%,.2)", "rgba(0, 0, 0, 0.2)");
+            border: 1px solid @Themed("hsla(0,0%,100%,.2)", "rgba(0, 0, 0, 0.2)");
-            border-width: 1px;
-            border-style: solid;
             background-color: @Themed("transparent", "white");
         }
 
         .chatlog__reaction-count {
             min-width: 9px;
-            margin-left: 0.35em;
+            margin-left: 0.35rem;
-            font-size: 0.875em;
             color: @Themed("#b9bbbe", "#4f5660");
+            font-size: 0.875rem;
         }
 
         .chatlog__reaction:hover .chatlog__reaction-count {
             color: @Themed("#dcddde", "#2e3338");
         }
 
-        .chatlog__bot-tag {
+        .chatlog__markdown {
-            position: relative;
+            max-width: 100%;
-            top: -.1em;
-            margin-left: 0.3em;
-            padding: 0.05em 0.3em;
-            border-radius: 3px;
             line-height: 1.3;
-            background-color: #5865F2;
+            overflow-wrap: break-word;
-            color: #ffffff;
+        }
-            font-size: 0.625em;
+
+        .chatlog__markdown-preserve {
+            white-space: pre-wrap;
+        }
+
+        .chatlog__markdown-spoiler {
+            background-color: @Themed("rgba(255, 255, 255, 0.1)", "rgba(0, 0, 0, 0.1)");
+            border-radius: 3px;
+        }
+
+        .chatlog__markdown-spoiler--hidden {
+            cursor: pointer;
+            background-color: @Themed("#202225", "#b9bbbe");
+            color: rgba(0, 0, 0, 0);
+        }
+
+        .chatlog__markdown-spoiler--hidden:hover {
+            background-color: @Themed("rgba(32, 34, 37, 0.8)", "rgba(185, 187, 190, 0.8)");
+        }
+
+        .chatlog__markdown-spoiler--hidden::selection {
+            color: rgba(0, 0, 0, 0);
+        }
+
+        .chatlog__markdown-quote {
+            display: flex;
+            margin: 0.05rem 0;
+        }
+
+        .chatlog__markdown-quote-border {
+            margin-right: 0.5rem;
+            border: 2px solid @Themed("#4f545c", "#c7ccd1");
+            border-radius: 3px;
+        }
+
+        .chatlog__markdown-pre {
+            background-color: @Themed("#2f3136", "#f9f9f9");
+            font-family: "Consolas", "Courier New", Courier, monospace;
+        }
+
+        .chatlog__markdown-pre--multiline {
+            margin-top: 0.25rem;
+            padding: 0.5rem;
+            border: 2px solid @Themed("#282b30", "#f3f3f3");
+            border-radius: 5px;
+            color: @Themed("#b9bbbe", "#657b83");
+        }
+
+        .chatlog__markdown-pre--multiline.hljs {
+            background-color: inherit;
+            color: inherit;
+        }
+
+        .chatlog__markdown-pre--inline {
+            padding: 2px;
+            border-radius: 3px;
+            font-size: 0.85rem;
+        }
+
+        .chatlog__markdown-mention{
+            border-radius: 3px;
+            padding: 0 2px;
+            background-color: @Themed("rgba(88, 101, 242, .3)", "rgba(88, 101, 242, .15)");
+            color: @Themed("#dee0fc", "#505cdc");
             font-weight: 500;
         }
 
+        .chatlog__markdown-mention:hover {
+            background-color: #5865f2;
+            color: #ffffff
+        }
+
+        .chatlog__markdown-timestamp{
+            border-radius: 3px;
+            padding: 0 2px;
+            color: @Themed("#a3a6aa", "#5e6772");
+        }
+
+        .chatlog__emoji {
+            width: 1.325rem;
+            height: 1.325rem;
+            margin: 0 0.06rem;
+            vertical-align: -0.4rem;
+        }
+
+        .chatlog__emoji--small {
+            width: 1rem;
+            height: 1rem;
+        }
+
+        .chatlog__emoji--large {
+            width: 2.8rem;
+            height: 2.8rem;
+        }
+
         .postamble {
-            margin: 1.4em 0.3em 0.6em 0.3em;
+            padding: 1.25rem;
-            padding: 1em;
-            border-top: 1px solid @Themed("rgba(255, 255, 255, 0.1)", "#eceeef");
         }
 
         .postamble__entry {
@@ -669,16 +691,16 @@
     </style>
 
     @{/* Syntax highlighting */}
-    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/9.15.6/styles/solarized-@(Model.ThemeName.ToLowerInvariant()).min.css">
+    <link rel="stylesheet" href="@ResolveUrlAsync($"https://cdnjs.cloudflare.com/ajax/libs/highlight.js/9.15.6/styles/solarized-{Model.ThemeName.ToLowerInvariant()}.min.css")">
-    <script src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/9.15.6/highlight.min.js"></script>
+    <script src="@ResolveUrlAsync("https://cdnjs.cloudflare.com/ajax/libs/highlight.js/9.15.6/highlight.min.js")"></script>
     <script>
         document.addEventListener('DOMContentLoaded', () => {
-            document.querySelectorAll('.pre--multiline').forEach(e => hljs.highlightBlock(e));
+            document.querySelectorAll('.chatlog__markdown-pre--multiline').forEach(e => hljs.highlightBlock(e));
         });
     </script>
 
     @{/* Lottie animation support */}
-    <script src="https://cdnjs.cloudflare.com/ajax/libs/lottie-web/5.8.1/lottie.min.js"></script>
+    <script src="@ResolveUrlAsync("https://cdnjs.cloudflare.com/ajax/libs/lottie-web/5.8.1/lottie.min.js")"></script>
     <script>
         document.addEventListener('DOMContentLoaded', () => {
             document.querySelectorAll('.chatlog__sticker--media[data-source]').forEach(e => {
@@ -702,12 +724,12 @@
     @{/* Scripts */}
     <script>
         function scrollToMessage(event, id) {
-            var element = document.getElementById('message-' + id);
+            var element = document.getElementById('chatlog__message-container-' + id);
+            if (!element)
+                return;
 
-            if (element) {
             event.preventDefault();
-
+            element.classList.add('chatlog__message-container--highlighted');
-                element.classList.add('chatlog__message--highlighted');
 
             window.scrollTo({
                 top: element.getBoundingClientRect().top - document.body.getBoundingClientRect().top - (window.innerHeight / 2),
@@ -715,30 +737,33 @@
             });
 
             window.setTimeout(function() {
-                    element.classList.remove('chatlog__message--highlighted');
+                element.classList.remove('chatlog__message-container--highlighted');
             }, 2000);
         }
-        }
 
         function showSpoiler(event, element) {
-            if (element && element.classList.contains('spoiler-text--hidden')) {
+            if (!element)
-                event.preventDefault();
+                return;
-                element.classList.remove('spoiler-text--hidden');
+
-            }
+            if (element.classList.contains('chatlog__attachment--hidden')) {
-            if (element && element.classList.contains('chatlog__attachment--hidden')) {
                 event.preventDefault();
                 element.classList.remove('chatlog__attachment--hidden');
             }
+
+            if (element.classList.contains('chatlog__markdown-spoiler--hidden')) {
+                event.preventDefault();
+                element.classList.remove('chatlog__markdown-spoiler--hidden');
+            }
         }
     </script>
 
     @{/* Icons */}
     <svg style="display: none">
-        <symbol id="icon-attachment" viewBox="0 0 720 960">
+        <symbol id="attachment-icon" viewBox="0 0 720 960">
-            <path fill="#f4f5fb" d="M50,935a25,25,0,0,1-25-25V50A25,25,0,0,1,50,25H519.6L695,201.32V910a25,25,0,0,1-25,25Z" />
+            <path fill="#f4f5fb" d="M50,935a25,25,0,0,1-25-25V50A25,25,0,0,1,50,25H519.6L695,201.32V910a25,25,0,0,1-25,25Z"/>
-            <path fill="#7789c4" d="M509.21,50,670,211.63V910H50V50H509.21M530,0H50A50,50,0,0,0,0,50V910a50,50,0,0,0,50,50H670a50,50,0,0,0,50-50h0V191Z" />
+            <path fill="#7789c4" d="M509.21,50,670,211.63V910H50V50H509.21M530,0H50A50,50,0,0,0,0,50V910a50,50,0,0,0,50,50H670a50,50,0,0,0,50-50h0V191Z"/>
-            <path fill="#f4f5fb" d="M530,215a25,25,0,0,1-25-25V50a25,25,0,0,1,16.23-23.41L693.41,198.77A25,25,0,0,1,670,215Z" />
+            <path fill="#f4f5fb" d="M530,215a25,25,0,0,1-25-25V50a25,25,0,0,1,16.23-23.41L693.41,198.77A25,25,0,0,1,670,215Z"/>
-            <path fill="#7789c4" d="M530,70.71,649.29,190H530V70.71M530,0a50,50,0,0,0-50,50V190a50,50,0,0,0,50,50H670a50,50,0,0,0,50-50Z" />
+            <path fill="#7789c4" d="M530,70.71,649.29,190H530V70.71M530,0a50,50,0,0,0-50,50V190a50,50,0,0,0,50,50H670a50,50,0,0,0,50-50Z"/>
         </symbol>
     </svg>
 </head>

DiscordChatExporter.Core/Exporting/Writers/HtmlMessageWriter.cs

@@ -1,4 +1,5 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.IO;
 using System.Linq;
 using System.Threading;
@@ -13,7 +14,7 @@ internal class HtmlMessageWriter : MessageWriter
     private readonly TextWriter _writer;
     private readonly string _themeName;
 
-    private readonly List<Message> _messageGroupBuffer = new();
+    private readonly List<Message> _messageGroup = new();
 
     public HtmlMessageWriter(Stream stream, ExportContext context, string themeName)
         : base(stream, context)
@@ -22,6 +23,23 @@ internal class HtmlMessageWriter : MessageWriter
         _themeName = themeName;
     }
 
+    private bool CanJoinGroup(Message message)
+    {
+        var lastMessage = _messageGroup.LastOrDefault();
+        if (lastMessage is null)
+            return true;
+
+        return
+            // Must be from the same author
+            lastMessage.Author.Id == message.Author.Id &&
+            // Author's name must not have changed between messages
+            string.Equals(lastMessage.Author.FullName, message.Author.FullName, StringComparison.Ordinal) &&
+            // Duration between messages must be 7 minutes or less
+            (message.Timestamp - lastMessage.Timestamp).Duration().TotalMinutes <= 7 &&
+            // Other message must not be a reply
+            message.Reference is null;
+    }
+
     public override async ValueTask WritePreambleAsync(CancellationToken cancellationToken = default)
     {
         var templateContext = new PreambleTemplateContext(Context, _themeName);
@@ -34,10 +52,10 @@ internal class HtmlMessageWriter : MessageWriter
     }
 
     private async ValueTask WriteMessageGroupAsync(
-        MessageGroup messageGroup,
+        IReadOnlyList<Message> messages,
         CancellationToken cancellationToken = default)
     {
-        var templateContext = new MessageGroupTemplateContext(Context, messageGroup);
+        var templateContext = new MessageGroupTemplateContext(Context, messages);
 
         // We are not writing directly to output because Razor
         // does not actually do asynchronous writes to stream.
@@ -52,31 +70,26 @@ internal class HtmlMessageWriter : MessageWriter
     {
         await base.WriteMessageAsync(message, cancellationToken);
 
-        // If message group is empty or the given message can be grouped, buffer the given message
+        // If the message can be grouped, buffer it for now
-        if (!_messageGroupBuffer.Any() || MessageGroup.CanJoin(_messageGroupBuffer.Last(), message))
+        if (CanJoinGroup( message))
         {
-            _messageGroupBuffer.Add(message);
+            _messageGroup.Add(message);
         }
         // Otherwise, flush the group and render messages
         else
         {
-            await WriteMessageGroupAsync(MessageGroup.Join(_messageGroupBuffer), cancellationToken);
+            await WriteMessageGroupAsync(_messageGroup, cancellationToken);
 
-            _messageGroupBuffer.Clear();
+            _messageGroup.Clear();
-            _messageGroupBuffer.Add(message);
+            _messageGroup.Add(message);
         }
     }
 
     public override async ValueTask WritePostambleAsync(CancellationToken cancellationToken = default)
     {
         // Flush current message group
-        if (_messageGroupBuffer.Any())
+        if (_messageGroup.Any())
-        {
+            await WriteMessageGroupAsync(_messageGroup, cancellationToken);
-            await WriteMessageGroupAsync(
-                MessageGroup.Join(_messageGroupBuffer),
-                cancellationToken
-            );
-        }
 
         var templateContext = new PostambleTemplateContext(Context, MessagesWritten);
 

DiscordChatExporter.Core/Exporting/Writers/MarkdownVisitors/HtmlMarkdownVisitor.cs

@@ -33,15 +33,37 @@ internal partial class HtmlMarkdownVisitor : MarkdownVisitor
     {
         var (tagOpen, tagClose) = formatting.Kind switch
         {
-            FormattingKind.Bold => ("<strong>", "</strong>"),
+            FormattingKind.Bold => (
-            FormattingKind.Italic => ("<em>", "</em>"),
+                "<strong>",
-            FormattingKind.Underline => ("<u>", "</u>"),
+                "</strong>"
-            FormattingKind.Strikethrough => ("<s>", "</s>"),
+            ),
+
+            FormattingKind.Italic => (
+                "<em>",
+                "</em>"
+            ),
+
+            FormattingKind.Underline => (
+                "<u>",
+                "</u>"
+            ),
+
+            FormattingKind.Strikethrough => (
+                "<s>",
+                "</s>"
+            ),
+
             FormattingKind.Spoiler => (
-                "<span class=\"spoiler-text spoiler-text--hidden\" onclick=\"showSpoiler(event, this)\">", "</span>"),
+                "<span class=\"chatlog__markdown-spoiler chatlog__markdown-spoiler--hidden\" onclick=\"showSpoiler(event, this)\">",
+                "</span>"
+            ),
+
             FormattingKind.Quote => (
-                "<div class=\"quote\"><div class=\"quote-border\"></div><div class=\"quote-content\">", "</div></div>"),
+                "<div class=\"chatlog__markdown-quote\"><div class=\"chatlog__markdown-quote-border\"></div><div class=\"chatlog__markdown-quote-content\">",
-            _ => throw new ArgumentOutOfRangeException(nameof(formatting.Kind))
+                "</div></div>"
+            ),
+
+            _ => throw new InvalidOperationException($"Unknown formatting kind '{formatting.Kind}'.")
         };
 
         _buffer.Append(tagOpen);
@@ -54,7 +76,7 @@ internal partial class HtmlMarkdownVisitor : MarkdownVisitor
     protected override MarkdownNode VisitInlineCodeBlock(InlineCodeBlockNode inlineCodeBlock)
     {
         _buffer
-            .Append("<span class=\"pre pre--inline\">")
+            .Append("<span class=\"chatlog__markdown-pre chatlog__markdown-pre--inline\">")
             .Append(HtmlEncode(inlineCodeBlock.Code))
             .Append("</span>");
 
@@ -68,7 +90,7 @@ internal partial class HtmlMarkdownVisitor : MarkdownVisitor
             : "nohighlight";
 
         _buffer
-            .Append($"<div class=\"pre pre--multiline {highlightCssClass}\">")
+            .Append($"<div class=\"chatlog__markdown-pre chatlog__markdown-pre--multiline {highlightCssClass}\">")
             .Append(HtmlEncode(multiLineCodeBlock.Code))
             .Append("</div>");
 
@@ -98,10 +120,10 @@ internal partial class HtmlMarkdownVisitor : MarkdownVisitor
     protected override MarkdownNode VisitEmoji(EmojiNode emoji)
     {
         var emojiImageUrl = Emoji.GetImageUrl(emoji.Id, emoji.Name, emoji.IsAnimated);
-        var jumboClass = _isJumbo ? "emoji--large" : "";
+        var jumboClass = _isJumbo ? "chatlog__emoji--large" : "";
 
         _buffer
-            .Append($"<img loading=\"lazy\" class=\"emoji {jumboClass}\" alt=\"{emoji.Name}\" title=\"{emoji.Code}\" src=\"{emojiImageUrl}\">");
+            .Append($"<img loading=\"lazy\" class=\"chatlog__emoji {jumboClass}\" alt=\"{emoji.Name}\" title=\"{emoji.Code}\" src=\"{emojiImageUrl}\">");
 
         return base.VisitEmoji(emoji);
     }
@@ -111,14 +133,14 @@ internal partial class HtmlMarkdownVisitor : MarkdownVisitor
         if (mention.Kind == MentionKind.Everyone)
         {
             _buffer
-                .Append("<span class=\"mention\">")
+                .Append("<span class=\"chatlog__markdown-mention\">")
                 .Append("@everyone")
                 .Append("</span>");
         }
         else if (mention.Kind == MentionKind.Here)
         {
             _buffer
-                .Append("<span class=\"mention\">")
+                .Append("<span class=\"chatlog__markdown-mention\">")
                 .Append("@here")
                 .Append("</span>");
         }
@@ -129,7 +151,7 @@ internal partial class HtmlMarkdownVisitor : MarkdownVisitor
             var nick = member?.Nick ?? "Unknown";
 
             _buffer
-                .Append($"<span class=\"mention\" title=\"{HtmlEncode(fullName)}\">")
+                .Append($"<span class=\"chatlog__markdown-mention\" title=\"{HtmlEncode(fullName)}\">")
                 .Append('@').Append(HtmlEncode(nick))
                 .Append("</span>");
         }
@@ -140,7 +162,7 @@ internal partial class HtmlMarkdownVisitor : MarkdownVisitor
             var name = channel?.Name ?? "deleted-channel";
 
             _buffer
-                .Append("<span class=\"mention\">")
+                .Append("<span class=\"chatlog__markdown-mention\">")
                 .Append(symbol).Append(HtmlEncode(name))
                 .Append("</span>");
         }
@@ -151,11 +173,12 @@ internal partial class HtmlMarkdownVisitor : MarkdownVisitor
             var color = role?.Color;
 
             var style = color is not null
-                ? $"color: rgb({color?.R}, {color?.G}, {color?.B}); background-color: rgba({color?.R}, {color?.G}, {color?.B}, 0.1);"
+                ? $"color: rgb({color.Value.R}, {color.Value.G}, {color.Value.B}); " +
+                  $"background-color: rgba({color.Value.R}, {color.Value.G}, {color.Value.B}, 0.1);"
                 : "";
 
             _buffer
-                .Append($"<span class=\"mention\" style=\"{style}\">")
+                .Append($"<span class=\"chatlog__markdown-mention\" style=\"{style}\">")
                 .Append('@').Append(HtmlEncode(name))
                 .Append("</span>");
         }
@@ -175,7 +198,7 @@ internal partial class HtmlMarkdownVisitor : MarkdownVisitor
             : "Invalid date";
 
         _buffer
-            .Append($"<span class=\"timestamp\" title=\"{HtmlEncode(longDateString)}\">")
+            .Append($"<span class=\"chatlog__markdown-timestamp\" title=\"{HtmlEncode(longDateString)}\">")
             .Append(HtmlEncode(dateString))
             .Append("</span>");
 

DiscordChatExporter.Core/Markdown/Parsing/MarkdownParser.cs

@@ -77,8 +77,9 @@ internal static partial class MarkdownParser
 
     // Capture any character until the end of the line
     // Opening 'greater than' character must be followed by whitespace
+    // Text content is optional
     private static readonly IMatcher<MarkdownNode> SingleLineQuoteNodeMatcher = new RegexMatcher<MarkdownNode>(
-        new Regex("^>\\s(.+\n?)", DefaultRegexOptions),
+        new Regex("^>\\s(.*\n?)", DefaultRegexOptions),
         (s, m) => new FormattingNode(FormattingKind.Quote, Parse(s.Relocate(m.Groups[1])))
     );
 
@@ -86,7 +87,7 @@ internal static partial class MarkdownParser
     // This one is tricky as it ends up producing multiple separate captures which need to be joined
     private static readonly IMatcher<MarkdownNode> RepeatedSingleLineQuoteNodeMatcher =
         new RegexMatcher<MarkdownNode>(
-            new Regex("(?:^>\\s(.+\n?)){2,}", DefaultRegexOptions),
+            new Regex("(?:^>\\s(.*\n?)){2,}", DefaultRegexOptions),
             (_, m) =>
             {
                 var content = string.Concat(m.Groups[1].Captures.Select(c => c.Value));