/**
    * Copyright 2007 Google Inc.
    *
    * Licensed under the Apache License, Version 2.0 (the "License");
    * you may not use this file except in compliance with the License.
    * You may obtain a copy of the License at
    *
    * http://www.apache.org/licenses/LICENSE-2.0
    *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package com.tonicsystems.jarjar;
  
  import com.tonicsystems.jarjar.util.*;
  import java.io.*;
  import java.util.*;
  
  public class Main {
  
    private static final String LINE_SEPARATOR = System.getProperty("line.separator");
    private static final String HELP;
  
    static {
      try {
        HELP = readIntoString(Main.class.getResourceAsStream("help.txt"));
      } catch (IOException e) {
        throw new RuntimeIOException(e);
      }
    }
  
    private static String readIntoString(InputStream in) throws IOException {
        StringBuilder sb = new StringBuilder();
        BufferedReader r = new BufferedReader(new InputStreamReader(in, "UTF-8"));
        String line = null;
        while ((line = r.readLine()) != null)
            sb.append(line).append(LINE_SEPARATOR);
        return sb.toString();
    }
  
    private boolean verbose;
    private List patterns;
    private int level = DepHandler.LEVEL_CLASS;
  
    public static void main(String[] args) throws Exception {
      MainUtil.runMain(new Main(), args, "help");
    }
  
    public void help() {
      System.err.print(HELP);
    }
  
    public void strings(String cp) throws IOException {
      if (cp == null) {
        throw new IllegalArgumentException("cp is required");
      }
      new StringDumper().run(cp, new PrintWriter(System.out));
    }
  
    // TODO: make level an enum
    public void find(String level, String cp1, String cp2) throws IOException {
      if (level == null || cp1 == null) {
        throw new IllegalArgumentException("level and cp1 are required");
      }
      if (cp2 == null) {
        cp2 = cp1;
      }
      int levelFlag;
      if ("class".equals(level)) {
        levelFlag = DepHandler.LEVEL_CLASS;
      } else if ("jar".equals(level)) {
        levelFlag = DepHandler.LEVEL_JAR;
      } else {
        throw new IllegalArgumentException("unknown level " + level);
      }
      PrintWriter w = new PrintWriter(System.out);
      DepHandler handler = new TextDepHandler(w, levelFlag);
      new DepFind().run(cp1, cp2, handler);
      w.flush();
    }
  
    public void process(File rulesFile, File inJar, File outJar) throws IOException {
      if (rulesFile == null || inJar == null || outJar == null) {
        throw new IllegalArgumentException("rulesFile, inJar, and outJar are required");
      }
      List<PatternElement> rules = RulesFileParser.parse(rulesFile);
      boolean verbose = Boolean.getBoolean("verbose");
      boolean skipManifest = Boolean.getBoolean("skipManifest");
      MainProcessor proc = new MainProcessor(rules, verbose, skipManifest);
      StandaloneJarProcessor.run(inJar, outJar, proc);
      proc.strip(outJar);
    }
  }