/*
 * This file is part of fabric-loom, licensed under the MIT License (MIT).
 *
 * Copyright (c) 2023 FabricMC
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

package dev.architectury.loom.accesstransformer;

import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.Reader;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Path;

import net.fabricmc.loom.util.Constants;
import net.fabricmc.loom.util.fmj.FabricModJson;

public interface AccessTransformerEntry {
	Reader openReader() throws IOException;

	record Standalone(Path path, String hash) implements AccessTransformerEntry {
		@Override
		public Reader openReader() throws IOException {
			return Files.newBufferedReader(path);
		}

		@Override
		public String toString() {
			return path.toString();
		}
	}

	record Mod(FabricModJson fmj, String hash) implements AccessTransformerEntry {
		@Override
		public Reader openReader() throws IOException {
			final byte[] bytes = fmj.getSource().read(Constants.Forge.ACCESS_TRANSFORMER_PATH);
			return new InputStreamReader(new ByteArrayInputStream(bytes), StandardCharsets.UTF_8);
		}

		@Override
		public String toString() {
			return fmj.toString();
		}
	}
}
