CrashReportMixin.java

/*
 * Copyright 2025 Lambda
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package com.lambda.mixin;

import com.lambda.Lambda;
import com.lambda.config.AbstractSetting;
import com.lambda.module.Module;
import com.lambda.module.ModuleRegistry;
import com.lambda.util.DynamicException;
import com.llamalad7.mixinextras.injector.wrapmethod.WrapMethod;
import com.llamalad7.mixinextras.injector.wrapoperation.Operation;
import net.minecraft.client.MinecraftClient;
import net.minecraft.util.crash.CrashReport;
import net.minecraft.util.crash.ReportType;
import org.spongepowered.asm.mixin.Final;
import org.spongepowered.asm.mixin.Mixin;
import org.spongepowered.asm.mixin.Mutable;
import org.spongepowered.asm.mixin.Shadow;
import org.spongepowered.asm.mixin.injection.At;
import org.spongepowered.asm.mixin.injection.Inject;
import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;

import java.util.ArrayList;
import java.util.List;

// Modify the crash report behavior for dynamic remapping and GitHub issue link
@Mixin(CrashReport.class)
public class CrashReportMixin {
    @Mutable
    @Shadow @Final private Throwable cause;

    @Inject(method = "<init>(Ljava/lang/String;Ljava/lang/Throwable;)V", at = @At("TAIL"))
    void injectConstructor(String message, Throwable cause, CallbackInfo ci) {
        if (!Lambda.INSTANCE.isDebug() && MinecraftClient.getInstance() != null) {
            this.cause = new DynamicException(cause);
        }
    }

    @WrapMethod(method = "asString(Lnet/minecraft/util/crash/ReportType;Ljava/util/List;)Ljava/lang/String;")
    String injectString(ReportType type, List<String> extraInfo, Operation<String> original) {
        var list = new ArrayList<>(extraInfo);
        list.add("If this issue is related to Lambda, check if other users have experienced this too, or create a new issue at " + Lambda.REPO_URL + "/issues.\n\n");

        if (MinecraftClient.getInstance() != null) {
            list.add("Enabled modules:");

            ModuleRegistry.INSTANCE.getModules()
                    .stream()
                    .filter(Module::isEnabled)
                    .forEach(module -> {
                        list.add(String.format("\t%s", module.getName()));

                        module.getSettings()
                                .stream()
                                .filter(AbstractSetting::isModified)
                                .forEach(setting -> list.add(String.format("\t\t%s -> %s", setting.getName(), setting.getValue())));
                    });
        }

        list.add("\n" + "-".repeat(43) + "\n");

        return original.call(type, list);
    }
}