add clickable links

mod-fabric/resources/pixelchat.mixins.json

@@ -6,7 +6,8 @@
 		"defaultRequire": 1
 	},
 	"client": [
+		"BossBarHudMixin",
 		"ChatScreenMixin",
-		"BossBarHudMixin"
+		"ChatHudMixin"
 	]
 }

mod-fabric/src/eu/e99/pixelchat/fabric/mixin/ChatHudMixin.java

@@ -0,0 +1,107 @@
+package eu.e99.pixelchat.fabric.mixin;
+
+import net.minecraft.client.gui.hud.ChatHud;
+import net.minecraft.text.*;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Unique;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.ModifyVariable;
+
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.util.List;
+
+@Mixin(ChatHud.class)
+public class ChatHudMixin {
+
+    @ModifyVariable(
+            method = "addMessage(Lnet/minecraft/text/Text;Lnet/minecraft/network/message/MessageSignatureData;Lnet/minecraft/client/gui/hud/MessageIndicator;)V",
+            at = @At("HEAD"),
+            index = 1,
+            argsOnly = true
+    )
+    private Text pixelchat$modifyText(Text text) {
+        TextContent content = text.getContent();
+        List<Text> siblings = text.getSiblings().stream()
+                .map(this::pixelchat$modifyText)
+                .toList();
+        Style style = text.getStyle();
+
+        return switch (content) {
+            case PlainTextContent plain -> {
+                String string = plain.string();
+
+                MutableText newText = newTextWithLinks(string);
+                for (Text sibling : siblings) {
+                    newText = newText.append(sibling);
+                }
+
+                newText = newText.setStyle(style);
+                yield newText;
+            }
+            case TranslatableTextContent translatable -> {
+                Object[] args = translatable.getArgs();
+                for (int i = 0; i < args.length; i++) {
+                    args[i] = switch (args[i]) {
+                        case Text arg -> pixelchat$modifyText(arg);
+                        case String string -> newTextWithLinks(string);
+                        default -> args;
+                    };
+                }
+
+                yield newText(
+                        new TranslatableTextContent(
+                                translatable.getKey(),
+                                translatable.getFallback(),
+                                args
+                        ),
+                        siblings,
+                        style
+                );
+            }
+            default -> text;
+        };
+    }
+
+    @Unique
+    private MutableText newText(TextContent content, List<Text> siblings, Style style) {
+        MutableText text = MutableText.of(content);
+        for (Text sibling : siblings) {
+            text = text.append(sibling);
+        }
+
+        text = text.setStyle(style);
+        return text;
+    }
+
+    @Unique
+    private MutableText newTextWithLinks(String string) {
+        // TODO: Does this cover all cases? Probably not, but it's good enough for now
+        MutableText result = Text.empty();
+        String[] split = string.split(" ");
+
+        for (int i = 0; i < split.length; i++) {
+            String segment = split[i];
+            MutableText text = Text.literal(segment);
+
+            try {
+                URI uri = new URI(segment);
+                ClickEvent event = new ClickEvent(
+                        ClickEvent.Action.OPEN_URL,
+                        uri.toString()
+                );
+
+                text = text.styled(style -> {
+                    style = style.withClickEvent(event);
+                    return style;
+                });
+            } catch (URISyntaxException ignored) {
+            }
+
+            result.append(text);
+            if (i < split.length - 1) result.append(" ");
+        }
+
+        return result;
+    }
+}