Added /audit button to reports (moderation)

application/src/main/java/org/togetherjava/tjbot/features/Features.java

@@ -219,7 +219,7 @@ public static Collection<Feature> createFeatures(JDA jda, Database database, Con
         features.add(new GitHubCommand(githubReference));
         features.add(new ModMailCommand(jda, config));
         features.add(new HelpThreadCommand(config, helpSystemHelper, metrics));
-        features.add(new ReportCommand(config));
+        features.add(new ReportCommand(config, actionsStore));
         features.add(new BookmarksCommand(bookmarksSystem));
 
         features.add(new ChatGptCommand(chatGptService, helpSystemHelper,

application/src/main/java/org/togetherjava/tjbot/features/moderation/ModerationUtils.java

@@ -1,6 +1,7 @@
 package org.togetherjava.tjbot.features.moderation;
 
 import net.dv8tion.jda.api.EmbedBuilder;
+import net.dv8tion.jda.api.JDA;
 import net.dv8tion.jda.api.Permission;
 import net.dv8tion.jda.api.entities.Guild;
 import net.dv8tion.jda.api.entities.IPermissionHolder;
@@ -12,6 +13,7 @@
 import net.dv8tion.jda.api.requests.RestAction;
 import net.dv8tion.jda.api.requests.restaction.AuditableRestAction;
 import net.dv8tion.jda.api.utils.Result;
+import net.dv8tion.jda.api.utils.TimeUtil;
 import net.dv8tion.jda.internal.requests.CompletedRestAction;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -25,11 +27,17 @@
 
 import java.awt.Color;
 import java.time.Instant;
+import java.time.ZoneOffset;
 import java.time.temporal.ChronoUnit;
 import java.time.temporal.TemporalUnit;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+import java.util.Map;
 import java.util.Optional;
 import java.util.function.Predicate;
 import java.util.regex.Pattern;
+import java.util.stream.Collectors;
 
 /**
  * Utility class offering helpers revolving around user moderation, such as banning or kicking.
@@ -45,6 +53,10 @@ private ModerationUtils() {
      * {@link AuditableRestAction#reason(String)}.
      */
     private static final int REASON_MAX_LENGTH = 512;
+    /**
+     * The maximum amount of moderation actions displayed on a single audit log page
+     */
+    private static final int MAX_AUDIT_PAGE_LENGTH = 10;
     /**
      * Human-readable text representing the duration of a permanent action, will be shown to the
      * user as option for selection.
@@ -273,7 +285,7 @@ static boolean handleHasAuthorPermissions(String actionVerb, Permission permissi
      * Creates a message to be displayed as response to a moderation action.
      * <p>
      * Essentially, it informs others about the action, such as "John banned Bob for playing with
-     * the fire.".
+     * the fire".
      *
      * @param author the author executing the action
      * @param action the action that is executed
@@ -442,4 +454,86 @@ static RestAction<Boolean> sendModActionDm(RestAction<EmbedBuilder> embedBuilder
      */
     record TemporaryData(Instant expiresAt, String duration) {
     }
+
+    /**
+     * Splits a list of moderation records into discrete pages capped at 10 items each.
+     *
+     * @param moderationActions the list of chronological actions against a target
+     * @return a list of sub-lists where each sub-list contains a maximum of 10 items
+     */
+    public static List<List<ActionRecord>> groupActionsByPages(
+            List<ActionRecord> moderationActions) {
+        List<List<ActionRecord>> groupedModerationActions = new ArrayList<>();
+
+        for (int i = 0; i < moderationActions.size(); i++) {
+            if (i % MAX_AUDIT_PAGE_LENGTH == 0) {
+                groupedModerationActions.add(new ArrayList<>(MAX_AUDIT_PAGE_LENGTH));
+            }
+            groupedModerationActions.getLast().add(moderationActions.get(i));
+        }
+
+        return groupedModerationActions;
+    }
+
+    /**
+     * Generates a structural text overview outlining the count total of each action type.
+     *
+     * @param moderationActions a collection of history records
+     * @return a formatted markdown description summary
+     */
+    public static String createSummaryMessageDescription(
+            Collection<ActionRecord> moderationActions) {
+        int moderationActionAmount = moderationActions.size();
+
+        String shortSummary = "There are **%s actions** against the user."
+            .formatted(moderationActionAmount == 0 ? "no" : moderationActionAmount);
+
+        if (moderationActionAmount == 0) {
+            return shortSummary;
+        }
+
+        Map<ModerationAction, Long> moderationActionTypeToCount = moderationActions.stream()
+            .collect(Collectors.groupingBy(ActionRecord::actionType, Collectors.counting()));
+
+        String typeCountSummary = moderationActionTypeToCount.entrySet()
+            .stream()
+            .filter(typeAndCount -> typeAndCount.getValue() > 0)
+            .sorted(Map.Entry.<ModerationAction, Long>comparingByValue().reversed())
+            .map(typeAndCount -> "- **%s**: %d".formatted(typeAndCount.getKey(),
+                    typeAndCount.getValue()))
+            .collect(Collectors.joining("\n"));
+
+        return shortSummary + "\n" + typeCountSummary;
+    }
+
+    /**
+     * Converts an action record item asynchronously into a formatted embed data field.
+     *
+     * @param moderationActionRecord the moderation action history record to convert
+     * @param jda the active JDA instance used to resolve the moderator's handle
+     * @return a rest action that resolves to the embed field representing the moderation action
+     */
+    public static RestAction<MessageEmbed.Field> moderationActionToEmbedField(
+            ActionRecord moderationActionRecord, JDA jda) {
+        return jda.retrieveUserById(moderationActionRecord.authorId())
+            .map(author -> author == null ? "(unknown user)" : author.getName())
+            .map(authorText -> {
+                String expiresAtFormatted = moderationActionRecord.actionExpiresAt() == null ? ""
+                        : "\nTemporary action, expires at: " + TimeUtil.getDateTimeString(
+                                moderationActionRecord.actionExpiresAt().atOffset(ZoneOffset.UTC));
+
+                String embedFieldName = "%s by %s"
+                    .formatted(moderationActionRecord.actionType().name(), authorText);
+                String embedFieldDescription = """
+                        %s
+                        Issued at: %s%s
+                        """.formatted(moderationActionRecord.reason(),
+                        TimeUtil.getDateTimeString(
+                                moderationActionRecord.issuedAt().atOffset(ZoneOffset.UTC)),
+                        expiresAtFormatted);
+
+                return new MessageEmbed.Field(embedFieldName, embedFieldDescription, false);
+            });
+    }
+
 }

application/src/main/java/org/togetherjava/tjbot/features/moderation/ReportCommand.java

@@ -3,19 +3,18 @@
 import com.github.benmanes.caffeine.cache.Cache;
 import com.github.benmanes.caffeine.cache.Caffeine;
 import net.dv8tion.jda.api.EmbedBuilder;
-import net.dv8tion.jda.api.entities.Guild;
-import net.dv8tion.jda.api.entities.Message;
-import net.dv8tion.jda.api.entities.MessageEmbed;
-import net.dv8tion.jda.api.entities.Role;
+import net.dv8tion.jda.api.entities.*;
 import net.dv8tion.jda.api.entities.channel.concrete.TextChannel;
 import net.dv8tion.jda.api.events.interaction.ModalInteractionEvent;
 import net.dv8tion.jda.api.events.interaction.command.MessageContextInteractionEvent;
+import net.dv8tion.jda.api.events.interaction.component.ButtonInteractionEvent;
 import net.dv8tion.jda.api.interactions.InteractionHook;
 import net.dv8tion.jda.api.interactions.commands.build.Commands;
 import net.dv8tion.jda.api.interactions.components.buttons.Button;
 import net.dv8tion.jda.api.interactions.components.text.TextInput;
 import net.dv8tion.jda.api.interactions.components.text.TextInputStyle;
 import net.dv8tion.jda.api.interactions.modals.Modal;
+import net.dv8tion.jda.api.requests.RestAction;
 import net.dv8tion.jda.api.requests.restaction.MessageCreateAction;
 import net.dv8tion.jda.api.utils.Result;
 import org.slf4j.Logger;
@@ -25,14 +24,13 @@
 import org.togetherjava.tjbot.features.BotCommandAdapter;
 import org.togetherjava.tjbot.features.CommandVisibility;
 import org.togetherjava.tjbot.features.MessageContextCommand;
+import org.togetherjava.tjbot.features.componentids.Lifespan;
 import org.togetherjava.tjbot.features.utils.MessageUtils;
 
 import java.awt.Color;
 import java.time.Instant;
 import java.time.temporal.ChronoUnit;
-import java.util.List;
-import java.util.Objects;
-import java.util.Optional;
+import java.util.*;
 import java.util.concurrent.TimeUnit;
 import java.util.function.Predicate;
 import java.util.regex.Pattern;
@@ -53,15 +51,20 @@ public final class ReportCommand extends BotCommandAdapter implements MessageCon
     private final Predicate<String> modMailChannelNamePredicate;
     private final Predicate<String> configModGroupPattern;
     private final String configModMailChannelPattern;
+    private final ModerationActionsStore moderationActionsStore;
 
     /**
      * Creates a new instance.
      *
      * @param config to get the channel to forward reports to
+     * @param moderationActionsStore to get the history of moderation actions against the reported
+     *        user
      */
-    public ReportCommand(Config config) {
+    public ReportCommand(Config config, ModerationActionsStore moderationActionsStore) {
         super(Commands.message(COMMAND_NAME), CommandVisibility.GUILD);
 
+        this.moderationActionsStore = Objects.requireNonNull(moderationActionsStore);
+
         modMailChannelNamePredicate =
                 Pattern.compile(config.getModMailChannelPattern()).asMatchPredicate();
 
@@ -182,9 +185,13 @@ private MessageCreateAction createModMessage(String reportReason,
             .setColor(AMBIENT_COLOR)
             .build();
 
+        String historyButtonId =
+                generateComponentId(Lifespan.REGULAR, reportedMessage.authorId, "0");
+
         MessageCreateAction message =
                 modMailAuditLog.sendMessageEmbeds(reportedMessageEmbed, reportReasonEmbed)
-                    .addActionRow(Button.link(reportedMessage.jumpUrl, "Go to message"));
+                    .addActionRow(Button.link(reportedMessage.jumpUrl, "Go to message"),
+                            Button.primary(historyButtonId, "Audit"));
 
         Optional<Role> moderatorRole = guild.getRoles()
             .stream()
@@ -222,7 +229,7 @@ private static String createUserReply(Result<Message> result) {
     }
 
     private record ReportedMessage(String content, String id, String jumpUrl, String channelID,
-            Instant timestamp, String authorName, String authorAvatarUrl) {
+            Instant timestamp, String authorName, String authorAvatarUrl, String authorId) {
         static ReportedMessage ofArgs(List<String> args) {
             String content = args.getFirst();
             String id = args.get(1);
@@ -231,8 +238,92 @@ static ReportedMessage ofArgs(List<String> args) {
             Instant timestamp = Instant.parse(args.get(4));
             String authorName = args.get(5);
             String authorAvatarUrl = args.get(6);
+            String authorId = args.get(7);
             return new ReportedMessage(content, id, jumpUrl, channelID, timestamp, authorName,
-                    authorAvatarUrl);
+                    authorAvatarUrl, authorId);
+        }
+    }
+
+    @Override
+    public void onButtonClick(ButtonInteractionEvent event, List<String> args) {
+        event.deferReply(true).queue();
+
+        Guild guild =
+                Objects.requireNonNull(event.getGuild(), "Guild cannot be null for this command.");
+        long guildId = guild.getIdLong();
+
+        long reportedUserId = Long.parseLong(args.get(0));
+        int targetPage = Integer.parseInt(args.get(1));
+
+        List<ActionRecord> actions = new ArrayList<>(
+                moderationActionsStore.getActionsByTargetAscending(guildId, reportedUserId));
+        Collections.reverse(actions);
+        List<List<ActionRecord>> pages = ModerationUtils.groupActionsByPages(actions);
+
+        event.getJDA()
+            .retrieveUserById(reportedUserId)
+            .flatMap(user -> prepareAuditEmbedTasks(event, user, actions, pages, targetPage))
+            .onErrorFlatMap(_ -> event.getHook()
+                .sendMessage("Could not load audit data for this user.")
+                .map(msg -> null))
+            .queue();
+    }
+
+    private RestAction<List<MessageEmbed.Field>> prepareAuditEmbedTasks(
+            ButtonInteractionEvent event, User user, List<ActionRecord> actions,
+            List<List<ActionRecord>> pages, int targetPage) {
+
+        EmbedBuilder auditEmbed =
+                new EmbedBuilder().setTitle("Audit log of **%s**".formatted(user.getName()))
+                    .setAuthor(user.getName(), null, user.getEffectiveAvatarUrl())
+                    .setColor(Color.BLACK)
+                    .setDescription(ModerationUtils.createSummaryMessageDescription(actions));
+
+        if (pages.isEmpty()) {
+            return event.getHook()
+                .editOriginalEmbeds(auditEmbed.build())
+                .setComponents(List.of())
+                .map(_ -> List.of());
         }
+
+        int currentPageIndex = Math.clamp(targetPage, 0, pages.size() - 1);
+
+        List<RestAction<MessageEmbed.Field>> fetchFieldActions = pages.get(currentPageIndex)
+            .stream()
+            .map(actionRecord -> ModerationUtils.moderationActionToEmbedField(actionRecord,
+                    event.getJDA()))
+            .toList();
+
+        return RestAction.allOf(fetchFieldActions).map(embedFields -> {
+            finalizeAndSendEmbed(event, auditEmbed, embedFields, user.getIdLong(), currentPageIndex,
+                    pages.size());
+            return embedFields;
+        });
+    }
+
+    private void finalizeAndSendEmbed(ButtonInteractionEvent event, EmbedBuilder auditEmbed,
+            List<MessageEmbed.Field> embedFields, long reportedUserId, int currentPageIndex,
+            int totalPages) {
+        auditEmbed.clearFields();
+        embedFields.forEach(auditEmbed::addField);
+
+        auditEmbed.setFooter(
+                "Page %d/%d (Most recent first)".formatted(currentPageIndex + 1, totalPages));
+
+        String prevButtonId = generateComponentId(Lifespan.REGULAR, String.valueOf(reportedUserId),
+                String.valueOf(currentPageIndex - 1));
+        String nextButtonId = generateComponentId(Lifespan.REGULAR, String.valueOf(reportedUserId),
+                String.valueOf(currentPageIndex + 1));
+
+        Button prevButton =
+                Button.primary(prevButtonId, "◀ Previous").withDisabled(currentPageIndex == 0);
+        Button nextButton = Button.primary(nextButtonId, "Next ▶")
+            .withDisabled(currentPageIndex == totalPages - 1);
+
+        event.getHook()
+            .editOriginalEmbeds(auditEmbed.build())
+            .setActionRow(prevButton, nextButton)
+            .queue();
     }
+
 }