Add support for Guild Member object & included data (#279)

DiscordChatExporter.Cli/Program.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Drawing;
 using System.Threading.Tasks;
 using CliFx;
 using DiscordChatExporter.Cli.Commands;

DiscordChatExporter.Core.Models/Guild.cs

@@ -1,4 +1,9 @@
-namespace DiscordChatExporter.Core.Models
+using System;
+using System.Collections.Generic;
+using System.Drawing;
+using System.Linq;
+
+namespace DiscordChatExporter.Core.Models
 {
     // https://discordapp.string.IsNullOrWhiteSpace(com/developers/docs/resources/guild#guild-object
 
@@ -10,13 +15,19 @@
 
         public string? IconHash { get; }
 
+        public IReadOnlyList<Role> Roles { get; }
+
+        public Dictionary<string, Member?> Members { get; }
+
         public string IconUrl { get; }
 
-        public Guild(string id, string name, string? iconHash)
+        public Guild(string id, string name, IReadOnlyList<Role> roles, string? iconHash)
         {
             Id = id;
             Name = name;
             IconHash = iconHash;
+            Roles = roles;
+            Members = new Dictionary<string, Member?>();
 
             IconUrl = GetIconUrl(id, iconHash);
         }
@@ -26,6 +37,16 @@
 
     public partial class Guild
     {
+        public static string GetUserColor(Guild guild, User user) =>
+                guild.Members.GetValueOrDefault(user.Id, null)?.Roles
+                ?.Select(r => guild.Roles
+                            .Where(role => r == role.Id)
+                            .FirstOrDefault()
+                )?.Where(r => r.Color != Color.Black)?
+                .Aggregate<Role, Role?>(null, (a, b) => (a?.Position ?? 0) > b.Position? a : b)?
+                .ColorAsHex ?? "";
+        public static string GetUserNick(Guild guild, User user) => guild.Members.GetValueOrDefault(user.Id)?.Nick ?? user.Name;
+
         public static string GetIconUrl(string id, string? iconHash)
         {
             return !string.IsNullOrWhiteSpace(iconHash)
@@ -33,6 +54,6 @@
                 : "https://cdn.discordapp.com/embed/avatars/0.png";
         }
 
-        public static Guild DirectMessages { get; } = new Guild("@me", "Direct Messages", null);
+        public static Guild DirectMessages { get; } = new Guild("@me", "Direct Messages", Array.Empty<Role>(), null);
     }
 }

DiscordChatExporter.Core.Models/Member.cs

@@ -0,0 +1,20 @@
+using System.Collections.Generic;
+using System.Linq;
+
+namespace DiscordChatExporter.Core.Models
+{
+    public class Member
+    {
+        public string UserId { get; }
+        public string? Nick { get; }
+
+        public IReadOnlyList<string> Roles { get; }
+
+        public Member(string userId, string? nick, IReadOnlyList<string> roles)
+        {
+            UserId = userId;
+            Nick = nick;
+            Roles = roles;
+        }
+    }
+}

DiscordChatExporter.Core.Models/Role.cs

@@ -1,4 +1,7 @@
-namespace DiscordChatExporter.Core.Models
+
+using System.Drawing;
+
+namespace DiscordChatExporter.Core.Models
 {
     // https://discordapp.com/developers/docs/topics/permissions#role-object
 
@@ -8,10 +11,19 @@
 
         public string Name { get; }
 
-        public Role(string id, string name)
+        public Color Color { get; }
+
+        public string ColorAsHex => $"#{(Color.ToArgb() & 0xffffff):X6}";
+        public string ColorAsRgb => $"{Color.R}, {Color.G}, {Color.B}";
+
+        public int Position { get; }
+
+        public Role(string id, string name, Color color, int position)
         {
             Id = id;
             Name = name;
+            Color = color;
+            Position = position;
         }
 
         public override string ToString() => Name;
@@ -19,6 +31,6 @@
 
     public partial class Role
     {
-        public static Role CreateDeletedRole(string id) => new Role(id, "deleted-role");
+        public static Role CreateDeletedRole(string id) => new Role(id, "deleted-role", Color.Black, -1);
     }
 }

DiscordChatExporter.Core.Rendering/Formatters/HtmlMessageWriter.cs

@@ -75,6 +75,10 @@ namespace DiscordChatExporter.Core.Rendering.Formatters
             scriptObject.Import("FormatMarkdown",
                 new Func<string, string>(m => HtmlRenderingLogic.FormatMarkdown(Context, m)));
 
+            scriptObject.Import("GetUserColor", new Func<Guild, User, string>(Guild.GetUserColor));
+            
+            scriptObject.Import("GetUserNick", new Func<Guild, User, string>(Guild.GetUserNick));
+
             // Push model
             templateContext.PushGlobal(scriptObject);
 

DiscordChatExporter.Core.Rendering/Logic/HtmlRenderingLogic.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Drawing;
 using System.Linq;
 using System.Net;
 using System.Text.RegularExpressions;
@@ -114,8 +115,9 @@ namespace DiscordChatExporter.Core.Rendering.Logic
                 {
                     var role = context.MentionableRoles.FirstOrDefault(r => r.Id == mentionNode.Id) ??
                                Role.CreateDeletedRole(mentionNode.Id);
-
+                    string style = "";
-                    return $"<span class=\"mention\">@{HtmlEncode(role.Name)}</span>";
+                    if (role.Color != Color.Black) style = $"style=\"color: {role.ColorAsHex}; background-color: rgba({role.ColorAsRgb}, 0.1); font-weight: 400;\"";
+                    return $"<span class=\"mention\" {style}>@{HtmlEncode(role.Name)}</span>";
                 }
             }
 

DiscordChatExporter.Core.Rendering/Resources/HtmlMessageGroupTemplate.html

@@ -5,7 +5,7 @@
     </div>
     <div class="chatlog__messages">
         {{~ # Author name and timestamp ~}}
-        <span class="chatlog__author-name" title="{{ MessageGroup.Author.FullName | html.escape }}" data-user-id="{{ MessageGroup.Author.Id | html.escape }}">{{ MessageGroup.Author.Name | html.escape }}</span>
+    <span class="chatlog__author-name" title="{{ MessageGroup.Author.FullName | html.escape }}" data-user-id="{{ MessageGroup.Author.Id | html.escape }}" style="color: {{ GetUserColor Context.Guild MessageGroup.Author }}">{{ GetUserNick Context.Guild MessageGroup.Author | html.escape }}</span>
 
         {{~ # Bot tag ~}}
         {{~ if MessageGroup.Author.IsBot ~}}

DiscordChatExporter.Core.Services/DataService.Parsers.cs

@@ -21,13 +21,23 @@ namespace DiscordChatExporter.Core.Services
             return new User(id, discriminator, name, avatarHash, isBot);
         }
 
+        private Member ParseMember(JToken json)
+        {
+            var userId = ParseUser(json["user"]!).Id;
+            var nick = json["nick"]?.Value<string>();
+            var roles = json["roles"]!.Select(jt => jt.Value<string>()).ToArray();
+
+            return new Member(userId, nick, roles);
+        }
+
         private Guild ParseGuild(JToken json)
         {
             var id = json["id"]!.Value<string>();
             var name = json["name"]!.Value<string>();
             var iconHash = json["icon"]!.Value<string>();
+            var roles = json["roles"]!.Select(ParseRole).ToList();
 
-            return new Guild(id, name, iconHash);
+            return new Guild(id, name, roles, iconHash);
         }
 
         private Channel ParseChannel(JToken json)
@@ -64,8 +74,10 @@ namespace DiscordChatExporter.Core.Services
         {
             var id = json["id"]!.Value<string>();
             var name = json["name"]!.Value<string>();
+            var color = json["color"]!.Value<int>();
+            var position = json["position"]!.Value<int>();
 
-            return new Role(id, name);
+            return new Role(id, name, Color.FromArgb(color), position);
         }
 
         private Attachment ParseAttachment(JToken json)

DiscordChatExporter.Core.Services/DataService.cs

@@ -42,6 +42,10 @@ namespace DiscordChatExporter.Core.Services
         }
         
         private async Task<JToken> GetApiResponseAsync(AuthToken token, string route)
+        {
+            return (await GetApiResponseAsync(token, route, true))!;
+        }
+        private async Task<JToken?> GetApiResponseAsync(AuthToken token, string route, bool errorOnFail)
         {
             using var response = await _httpPolicy.ExecuteAsync(async () =>
             {
@@ -56,7 +60,10 @@ namespace DiscordChatExporter.Core.Services
 
             // We throw our own exception here because default one doesn't have status code
             if (!response.IsSuccessStatusCode)
-                throw new HttpErrorStatusCodeException(response.StatusCode, response.ReasonPhrase);
+            {
+                if(errorOnFail) throw new HttpErrorStatusCodeException(response.StatusCode, response.ReasonPhrase);
+                else return null;
+            }
 
             var jsonRaw = await response.Content.ReadAsStringAsync();
             return JToken.Parse(jsonRaw);
@@ -74,6 +81,15 @@ namespace DiscordChatExporter.Core.Services
             return guild;
         }
 
+        public async Task<Member?> GetGuildMemberAsync(AuthToken token, string guildId, string userId)
+        {
+            var response = await GetApiResponseAsync(token, $"guilds/{guildId}/members/{userId}", false);
+            if(response == null) return null;
+            var member = ParseMember(response);
+
+            return member;
+        }
+
         public async Task<Channel> GetChannelAsync(AuthToken token, string channelId)
         {
             var response = await GetApiResponseAsync(token, $"channels/{channelId}");
@@ -125,18 +141,6 @@ namespace DiscordChatExporter.Core.Services
             return channels;
         }
 
-        public async Task<IReadOnlyList<Role>> GetGuildRolesAsync(AuthToken token, string guildId)
-        {
-            // Special case for direct messages pseudo-guild
-            if (guildId == Guild.DirectMessages.Id)
-                return Array.Empty<Role>();
-
-            var response = await GetApiResponseAsync(token, $"guilds/{guildId}/roles");
-            var roles = response.Select(ParseRole).ToArray();
-
-            return roles;
-        }
-
         private async Task<Message> GetLastMessageAsync(AuthToken token, string channelId, DateTimeOffset? before = null)
         {
             var route = $"channels/{channelId}/messages?limit=1";

DiscordChatExporter.Core.Services/ExportService.cs

@@ -34,7 +34,7 @@ namespace DiscordChatExporter.Core.Services
             // Create context
             var mentionableUsers = new HashSet<User>(IdBasedEqualityComparer.Instance);
             var mentionableChannels = await _dataService.GetGuildChannelsAsync(token, guild.Id);
-            var mentionableRoles = await _dataService.GetGuildRolesAsync(token, guild.Id);
+            var mentionableRoles = guild.Roles;
 
             var context = new RenderContext
             (
@@ -50,8 +50,21 @@ namespace DiscordChatExporter.Core.Services
             await foreach (var message in _dataService.GetMessagesAsync(token, channel.Id, after, before, progress))
             {
                 // Add encountered users to the list of mentionable users
-                mentionableUsers.Add(message.Author);
+                var encounteredUsers = new List<User>();
-                mentionableUsers.AddRange(message.MentionedUsers);
+                encounteredUsers.Add(message.Author);
+                encounteredUsers.AddRange(message.MentionedUsers);
+
+                mentionableUsers.AddRange(encounteredUsers);
+
+                foreach (User u in encounteredUsers)
+                {
+                    if(!guild.Members.ContainsKey(u.Id))
+                    {
+                        var member = await _dataService.GetGuildMemberAsync(token, guild.Id, u.Id);
+                        guild.Members[u.Id] = member;
+                    }
+                }
+
 
                 // Render message
                 await renderer.RenderMessageAsync(message);