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  package android.taobao.atlas.framework;
  
  import android.content.Context;
  import android.content.pm.ApplicationInfo;
  import android.os.Build;
  import android.os.Environment;
  import android.os.Looper;
  import android.os.Process;
  import android.taobao.atlas.bundleInfo.AtlasBundleInfoManager;
  import android.taobao.atlas.runtime.RuntimeVariables;
  import android.taobao.atlas.util.AtlasFileLock;
  import android.taobao.atlas.util.BundleLock;
  import android.taobao.atlas.versionInfo.BaselineInfoManager;
  import android.text.TextUtils;
  import android.util.Log;
  import org.osgi.framework.Bundle;
  import org.osgi.framework.BundleEvent;
  import org.osgi.framework.BundleException;
  import org.osgi.framework.BundleListener;
  import org.osgi.framework.FrameworkEvent;
  import org.osgi.framework.FrameworkListener;
  import java.io.File;
  import java.io.IOException;
  import java.io.InputStream;
  import java.lang.reflect.Array;
  import java.lang.reflect.Constructor;
  import java.util.ArrayList;
  import java.util.Arrays;
  import java.util.HashMap;
  import java.util.List;
  import java.util.Map;
  import java.util.concurrent.ConcurrentHashMap;
  import android.os.*;
  import android.widget.Toast;
  
  import java.util.zip.ZipEntry;
  
  import static android.os.Environment.MEDIA_UNKNOWN;
  
  public final class Framework {
  
      public final static String DEPRECATED_MARK = "deprecated";
      static String containerVersion = "";
  
      /**
       * framework basedir.
       */
      private static String BASEDIR;
  
      /**
       * the location where the storage resides.
       */
      public static final String STORAGE_LOCATION;
  
      /**
       * debug outputs from bundles ?
       */
      static boolean DEBUG_BUNDLES;
  
      /**
       * location -> bundle.
       */
      public static Map<String, Bundle> bundles = new ConcurrentHashMap<String, Bundle>();
  
      /**
       * bundle listeners.
       */
      static List<BundleListener> bundleListeners = new ArrayList<BundleListener>();
  
      /**
       * synchronous bundle listeners.
       */
      static List<BundleListener> syncBundleListeners = new ArrayList<BundleListener>();
  
      /**
       * framework listeners.
       */
      static List<FrameworkListener> frameworkListeners = new ArrayList<FrameworkListener>();
  
      static HashMap<String,Integer> installingBundles = new HashMap<>();
  
      /**
       * system ClassLoader
       */
      static ClassLoader systemClassLoader;
  
      private static boolean bundleUpdated = false;
      public static boolean updateHappend = false;
      public static boolean DEBUG = false;
  
      static {
          File fileDir = RuntimeVariables.androidApplication.getFilesDir();
          if (fileDir == null || !fileDir.exists()) {
              fileDir = RuntimeVariables.androidApplication.getFilesDir();
          }
          BASEDIR = fileDir.getAbsolutePath();
          STORAGE_LOCATION = BASEDIR + File.separatorChar + "storage" + File.separatorChar;
  
          try {
              ApplicationInfo app_info = RuntimeVariables.androidApplication.getApplicationInfo();
              DEBUG = (app_info.flags & ApplicationInfo.FLAG_DEBUGGABLE) != 0;
          } catch (final Exception e) {
              DEBUG = true;
          }
      }
  
      /**
       * Hide defautlt constructor
       */
      private Framework() {
      }
  
      /**
       * launch the framework.
       *
       * @throws Throwable
       */
      static void startup(boolean updated) throws BundleException {
          AtlasBundleInfoManager.instance().getBundleInfo();
          notifyFrameworkListeners(0 /* STARTING */, null, null);
          notifyFrameworkListeners(FrameworkEvent.STARTED, null, null);
      }
  
      public static ClassLoader getSystemClassLoader() {
          return systemClassLoader;
      }
  
      public static List<Bundle> getBundles() {
          final List<Bundle> res = new ArrayList<Bundle>(bundles.size());
          synchronized (bundles) {
              res.addAll(bundles.values());
          }
          return res;
      }
  
      public synchronized static Bundle getBundle(String location) {
          if (location == null){
              return null;
          }
          return bundles.get(location);
      }
  
      /**
       * delete a directory with all subdirs.
       *
       * @param path the directory.
       */
      public static void deleteDirectory(final File path) {
          final File[] files = path.listFiles();
          if (files == null){
              return;
          }
          Log.e("delete",path.getAbsolutePath());
          for (int i = 0; i < files.length; i++) {
              if (files[i].isDirectory()) {
                  deleteDirectory(files[i]);
              } else {
                  files[i].delete();
              }
          }
          path.delete();
      }
  
      public static void update(boolean upgrade,final String[] locations, final File[] files, String[] newBundleTag,long[] dexPatchVersions,String newBaselineVersion,boolean lowInternalDisk) throws BundleException {
          if (locations == null || files == null || locations.length != files.length) {
              throw new IllegalArgumentException("locations and files must not be null and must be same length");
          }
          Class KernalBundleClass = null;
          HashMap<String,String> updateBundles = new HashMap<>();
          File updateStorageDir = new File(STORAGE_LOCATION);
          if(lowInternalDisk){
              updateStorageDir = null;
              File[] externalStorages = getExternalFilesDirs(RuntimeVariables.androidApplication,"storage");
              if(externalStorages!=null && externalStorages.length>0){
                  for(File externalStorage : externalStorages){
                      if(externalStorage!=null && getStorageState(externalStorage).equals(Environment.MEDIA_MOUNTED) && externalStorage.getUsableSpace()>50*1024*1024) {
                          updateStorageDir = externalStorage;
                      }
                  }
              }
          }
          if(updateStorageDir==null){
              throw new BundleException("no enough space");
          }
          updateHappend = true;
          for (int i = 0; i < locations.length; i++) {
              //reset
              if(!upgrade && dexPatchVersions[i]==-1){
                  updateBundles.put(locations[i],"-1");
                  continue;
              }
  
              if (locations[i] == null || files[i] == null) {
                  continue;
              }
  
              File bundleDir = null;
              try {
                  if (isKernalBundle(locations[i])) {
                      BundleLock.WriteLock(locations[i]);
                      KernalBundleClass = RuntimeVariables.getRawClassLoader().loadClass("android.taobao.atlas.startup.patch.KernalBundle");
                      bundleDir = new File(updateStorageDir, "com.taobao.maindex");
                      if (!bundleDir.exists()){
                          bundleDir.mkdirs();
                      }
                      AtlasFileLock.getInstance().LockExclusive(bundleDir);
                      Constructor cons = KernalBundleClass.getDeclaredConstructor(File.class,File.class,String.class,long.class);
                      cons.setAccessible(true);
                      if(upgrade) {
                          cons.newInstance(bundleDir, files[i], makeMainDexUniqueTag(newBaselineVersion,newBundleTag[i]), -1l);
                      }else{
                          cons.newInstance(bundleDir, files[i],null,dexPatchVersions[i]);                    }
                  } else {
  
                  }
                  if(upgrade){
                      updateBundles.put(locations[i],newBundleTag[i]);
                  }else{
                      updateBundles.put(locations[i],Long.toString(dexPatchVersions[i]));
                  }
              } catch (Exception e) {
                  if(upgrade) {
                      throw new BundleException("failed to installOrUpdate bundles ", e);
                  }
              } finally {
                  if (bundleDir != null) {
                      AtlasFileLock.getInstance().unLock(bundleDir);
                  }
                  BundleLock.WriteUnLock(locations[i]);
              }
          }
  
              if(updateBundles.size()>0){
                  try {
                      BaselineInfoManager.instance().saveDexPathInfo(updateBundles,lowInternalDisk ? updateStorageDir.getAbsolutePath() : "");
                  } catch (IOException e) {
                      throw new BundleException("save dexpatch info fail");
                  }
              }
  
      }
  
      private static String makeMainDexUniqueTag(String appVersion,String maindexTag){
          if(maindexTag.startsWith(appVersion)){
              return maindexTag;
          }
          return appVersion+"_"+maindexTag;
      }
  
      public static void rollback(){
          BaselineInfoManager.instance().rollback();
      }
  
      static boolean isKernalBundle(String location) {
          if (TextUtils.isEmpty(location)) {
              return false;
          }
          return location.equals("com.taobao.maindex");
      }
  
  
  
  
  
  
  
  
      /**
       * notify all framework listeners.
       *
       * @param state the new state.
       * @param bundle the bundle.
       * @param throwable a throwable.
       */
      static void notifyFrameworkListeners(final int state, final Bundle bundle, final Throwable throwable) {
  
          if (frameworkListeners.isEmpty()) {
              return;
          }
  
          final FrameworkEvent event = new FrameworkEvent(state);
  
          final FrameworkListener[] listeners = frameworkListeners.toArray(new FrameworkListener[frameworkListeners.size()]);
  
          for (int i = 0; i < listeners.length; i++) {
              final FrameworkListener listener = listeners[i];
  
              listener.frameworkEvent(event);
          }
      }
  
      public static File[] getExternalFilesDirs(Context context, String type) {
          final int version = Build.VERSION.SDK_INT;
          if (version >= 19) {
              //返回结果可能存在null值
              return context.getExternalFilesDirs(type);
          } else {
              return new File[] { context.getExternalFilesDir(type) };
          }
      }
  
      public static String getStorageState(File path) {
          final int version = Build.VERSION.SDK_INT;
          if (version >= 19) {
              return Environment.getStorageState(path);
          }
  
          try {
              final String canonicalPath = path.getCanonicalPath();
              final String canonicalExternal = Environment.getExternalStorageDirectory()
                      .getCanonicalPath();
  
              if (canonicalPath.startsWith(canonicalExternal)) {
                  return Environment.getExternalStorageState();
              }
          } catch (IOException e) {
          }
  
          return MEDIA_UNKNOWN;
      }
  
  
  
  
      public static boolean isDeubgMode() {
          return DEBUG;
      }
  }