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package android.taobao.atlas.hack;

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

import android.app.Application;

import android.app.Instrumentation;
import android.content.Context;
import android.content.ContextWrapper;
import android.content.pm.ApplicationInfo;
import android.content.pm.ProviderInfo;
import android.content.res.Resources;
import android.content.res.Resources.Theme;
import android.os.Build;
import android.os.IBinder;
import android.taobao.atlas.hack.Hack.AssertionFailureHandler;
import android.taobao.atlas.hack.Hack.HackDeclaration;
import android.taobao.atlas.hack.Hack.HackedClass;
import android.taobao.atlas.hack.Hack.HackedField;
import android.taobao.atlas.hack.Hack.HackedMethod;
import android.util.Log;
import android.view.ContextThemeWrapper;

public class AtlasHacks extends HackDeclaration implements AssertionFailureHandler {

    public static boolean                                       sIsReflectAvailable     = false;
    public static boolean                                       sIsReflectChecked       = false;
    public static boolean                                       sIsIgnoreFailure        = false;

    private AssertionArrayException                             mExceptionArray         = null;

    // Classes
    public static HackedClass<Object>                           LoadedApk;
    public static HackedClass<Object>                           ActivityThread;
    public static HackedClass<android.content.res.Resources>    Resources;
    public static HackedClass<android.app.Application>          Application;
    public static HackedClass<android.content.res.AssetManager> AssetManager;
    public static HackedClass<Object>                           IPackageManager;
    public static HackedClass<android.app.Service>              Service;
    public static HackedClass<Object>                           ContextImpl;
    public static HackedClass<ContextThemeWrapper>              ContextThemeWrapper;
    public static HackedClass<android.content.ContextWrapper>   ContextWrapper;
    public static HackedClass<java.lang.ClassLoader>            ClassLoader;
    public static HackedClass<dalvik.system.DexClassLoader>     DexClassLoader;
    public static HackedClass<Object>                           LexFile;
    public static HackedClass<Object>                           PackageParser$Component;
    public static HackedClass<Object>                           PackageParser$Activity;
    public static HackedClass<Object>                           PackageParser$Service;
    public static HackedClass<Object>                           PackageParser$Provider;
    public static HackedClass<Object>                           PackageParser;
    public static HackedClass<Object>                           PackageParser$Package;
    public static HackedClass<Object>                           PackageParser$ActivityIntentInfo;
    public static HackedClass<Object>                           PackageParser$ServiceIntentInfo;
    public static HackedClass<Object>                           PackageParser$ProviderIntentInfo;
    public static HackedClass<Object>                           ActivityManagerNative;
    public static HackedClass<Object>                                                       Singleton;
    public static HackedClass<Object>                           ActivityThread$AppBindData;
    public static HackedClass<Object>                           ActivityManager;
    public static HackedClass<Object>                           StringBlock;
    public static HackedClass<Object> ApplicationLoaders;

    // Fields
    public static HackedField<Object, Instrumentation>          ActivityThread_mInstrumentation;
    public static HackedField<Object, Application>          ActivityThread_mInitialApplication;    
    public static HackedField<Object, ArrayList<Application>>   ActivityThread_mAllApplications;
    public static HackedField<Object, Map<String, Object>>      ActivityThread_mPackages;
    public static HackedField<Object, Object>                   ActivityThread_sPackageManager;
    public static HackedField<Object, Application>              LoadedApk_mApplication;
    public static HackedField<Object, Resources>                LoadedApk_mResources;
    public static HackedField<Object, String>                   LoadedApk_mResDir;
    public static HackedField<Object, ClassLoader>              LoadedApk_mClassLoader;
    public static HackedField<Object, ClassLoader>              LoadedApk_mBaseClassLoader;
    public static HackedField<Object, String>                   LoadedApk_mAppDir;
    public static HackedField<Object, Resources>                ContextImpl_mResources;
    public static HackedField<Object, Theme>                    ContextImpl_mTheme;
    public static HackedField<ContextThemeWrapper, Context>     ContextThemeWrapper_mBase;
    public static HackedField<ContextThemeWrapper, Theme>       ContextThemeWrapper_mTheme;
    public static HackedField<ContextThemeWrapper, Resources>   ContextThemeWrapper_mResources;
    public static HackedField<ContextWrapper, Context>          ContextWrapper_mBase;
    public static HackedField<Object, ArrayList<Object>>        PackageParser$Component_intents;
    public static HackedField<Object, String>                   PackageParser$Package_packageName;
    public static HackedField<Object, ArrayList<Object>>                                    PackageParser$Package_activities;
    public static HackedField<Object, ArrayList<Object>>                                    PackageParser$Package_services;
    public static HackedField<Object, ArrayList<Object>>                                    PackageParser$Package_receivers;
    public static HackedField<Object, ArrayList<Object>>                                    PackageParser$Package_providers;
    public static HackedField<Object, ApplicationInfo>                                      PackageParser$Package_applicationInfo;
    public static HackedField<Object,Object>          PackageParser$ActivityIntentInfo_activity;
    public static HackedField<Object,Object>          PackageParser$ServiceIntentInfo_service;
    public static HackedField<Object,Object>          PackageParser$ProviderIntentInfo_provider;
    public static HackedField<Object,ProviderInfo>          PackageParser$Provider_info;
    public static HackedField<Object,Object>          ActivityManagerNative_gDefault;
    public static HackedField<Object, Object>         Singleton_mInstance;
    public static HackedField<Object,List<ProviderInfo>>      ActivityThread$AppBindData_providers;
    public static HackedField<Object,Object>  ActivityThread_mBoundApplication;
    public static HackedField<Object,Object>  ContextImpl_mPackageInfo;
    public static HackedField<Object,Object>                                  ActivityManager_IActivityManagerSingleton;
    public static HackedField<Object, Map<String, ClassLoader>> ApplicationLoaders_mLoaders;



    // Methods
    public static HackedMethod                                  ActivityThread_currentActivityThread;
    public static HackedMethod                                  AssetManager_addAssetPath;
    public static HackedMethod                                  AssetManager_addAssetPathAsSharedLibrary;
    public static HackedField<android.content.res.AssetManager,Object>                    AssetManager_mStringBlocks;
    public static HackedMethod                                  Application_attach;
    public static HackedMethod                                  ClassLoader_findLibrary;
    public static HackedMethod                                  DexClassLoader_findClass;
    public static HackedMethod                                  PackageParser$Component_getComponentName;
    public static HackedMethod                                  LexFile_loadLex;
    public static HackedMethod                                  LexFile_loadClass;
    public static HackedMethod                                  LexFile_close;
    public static HackedMethod                                  PackageParser_parsePackage;
    public static HackedMethod                                  PackageParser_generatePackageInfo;
    public static HackedMethod                                  AssetManager_getResourceIdentifier;
    public static HackedMethod                                  AssetManager_ensureStringBlocks;
    public static HackedMethod                                  ContextImpl_setOuterContext;
    public static HackedMethod                                  Service_attach;
    public static HackedMethod                                  ActivityThread_installContentProviders;
    public static HackedMethod                                  ActivityThread_installProvider;
    public static HackedMethod                                  AssetManager_addAssetPathNative;
    public static HackedMethod                                  AssetManager_addAssetPathNative24;
    public static HackedMethod                                  AssetManager_addAssetPathNativeSamSung;
    public static HackedMethod                                  AssetManager_getStringBlockCount;
    public static HackedMethod                                  AssetManager_getNativeStringBlock;
    public static HackedMethod ApplicationLoaders_getDefault;



    // Constructor
    public static Hack.HackedConstructor                        PackageParser_constructor;
    public static Hack.HackedConstructor                        StringBlock_constructor;

    // Match method
    public static ArrayList<HackedMethod>                       GeneratePackageInfoList = new ArrayList<HackedMethod>();
    public static ArrayList<HackedMethod>                       GetPackageInfoList      = new ArrayList<HackedMethod>();

    public static boolean defineAndVerify(){
        if (sIsReflectChecked) return sIsReflectAvailable;
        AtlasHacks atlasHacks = new AtlasHacks();
        try {
            Hack.setAssertionFailureHandler(atlasHacks);
            if (Build.VERSION.SDK_INT == 11) {
                atlasHacks.onAssertionFailure(new HackAssertionException("Hack Assertion Failed: Android OS Version 11"));
            }
            allClasses();
            allConstructors();
            allFields();
            allMethods();
            // 校验完成
            if (atlasHacks.mExceptionArray != null) {
                // 校验存在失败
                sIsReflectAvailable = false;
            } else {
                // 校验成功
                sIsReflectAvailable = true;
            }
        } catch (HackAssertionException e) {
            sIsReflectAvailable = false;
            e.printStackTrace();
        } finally {
            Hack.setAssertionFailureHandler(null);
            sIsReflectChecked = true;
        }
        return sIsReflectAvailable;
    }

    // Must init at first
    public static void allClasses() throws HackAssertionException {
        if (android.os.Build.VERSION.SDK_INT <= 8) {
            LoadedApk = Hack.into("android.app.ActivityThread$PackageInfo");
        } else {
            LoadedApk = Hack.into("android.app.LoadedApk");
        }
        ActivityThread = Hack.into("android.app.ActivityThread");
        Resources = Hack.into(Resources.class);
        Application = Hack.into(Application.class);
        AssetManager = Hack.into(android.content.res.AssetManager.class);
        IPackageManager = Hack.into("android.content.pm.IPackageManager");
        Service = Hack.into(android.app.Service.class);
        ContextImpl = Hack.into("android.app.ContextImpl");
        ContextThemeWrapper = Hack.into(ContextThemeWrapper.class);
        ContextWrapper = Hack.into("android.content.ContextWrapper");
        sIsIgnoreFailure = true;
        ClassLoader = Hack.into(java.lang.ClassLoader.class);
        DexClassLoader = Hack.into(dalvik.system.DexClassLoader.class);
        LexFile = Hack.into("dalvik.system.LexFile");
        PackageParser$Component = Hack.into("android.content.pm.PackageParser$Component");
        PackageParser$Activity = Hack.into("android.content.pm.PackageParser$Activity");
        PackageParser$Service = Hack.into("android.content.pm.PackageParser$Service");
        PackageParser$Provider = Hack.into("android.content.pm.PackageParser$Provider");

        PackageParser = Hack.into("android.content.pm.PackageParser");
        PackageParser$Package = Hack.into("android.content.pm.PackageParser$Package");
        PackageParser$ActivityIntentInfo = Hack.into("android.content.pm.PackageParser$ActivityIntentInfo");
        PackageParser$ServiceIntentInfo = Hack.into("android.content.pm.PackageParser$ServiceIntentInfo");
        PackageParser$ProviderIntentInfo = Hack.into("android.content.pm.PackageParser$ProviderIntentInfo");

        ActivityManagerNative = Hack.into("android.app.ActivityManagerNative");
        Singleton = Hack.into("android.util.Singleton");
        ActivityThread$AppBindData = Hack.into("android.app.ActivityThread$AppBindData");
        ActivityManager = Hack.into("android.app.ActivityManager");
        StringBlock=Hack.into("android.content.res.StringBlock");
        ApplicationLoaders = Hack.into("android.app.ApplicationLoaders");
        sIsIgnoreFailure = false;
    }

    public static void allFields() throws HackAssertionException {
        ActivityThread_mInstrumentation = ActivityThread.field("mInstrumentation").ofType(Instrumentation.class);
        ActivityThread_mAllApplications = ActivityThread.field("mAllApplications").ofGenericType(ArrayList.class);
        ActivityThread_mInitialApplication =  ActivityThread.field("mInitialApplication").ofType(Application.class);       
        ActivityThread_mPackages = ActivityThread.field("mPackages").ofGenericType(Map.class);
        ActivityThread_sPackageManager = ActivityThread.staticField("sPackageManager").ofType(IPackageManager.getmClass());

        LoadedApk_mApplication = LoadedApk.field("mApplication").ofType(Application.class);
        LoadedApk_mResources = LoadedApk.field("mResources").ofType(Resources.class);
        LoadedApk_mResDir = LoadedApk.field("mResDir").ofType(String.class);
        LoadedApk_mClassLoader = LoadedApk.field("mClassLoader").ofType(ClassLoader.class);
        LoadedApk_mBaseClassLoader = LoadedApk.field("mBaseClassLoader").ofType(ClassLoader.class);
        LoadedApk_mAppDir = LoadedApk.field("mAppDir").ofType(String.class);

        ContextImpl_mResources = ContextImpl.field("mResources").ofType(Resources.class);
        ContextImpl_mTheme = ContextImpl.field("mTheme").ofType(Theme.class);
        sIsIgnoreFailure = true;
        //not exists on android L
        ContextThemeWrapper_mBase = ContextThemeWrapper.field("mBase").ofType(Context.class);
        sIsIgnoreFailure = false;
        ContextThemeWrapper_mTheme = ContextThemeWrapper.field("mTheme").ofType(Theme.class);
        try {
            if (android.os.Build.VERSION.SDK_INT >= 17
                && ContextThemeWrapper.getmClass().getDeclaredField("mResources") != null) {
                ContextThemeWrapper_mResources = ContextThemeWrapper.field("mResources").ofType(Resources.class);
            }
        } catch (NoSuchFieldException e) {
            e.printStackTrace();
        }

        ContextWrapper_mBase = ContextWrapper.field("mBase").ofType(Context.class);
//        Resources_mAssets = Resources.field("mAssets");
        PackageParser$Component_intents = PackageParser$Component.field("intents").ofGenericType(ArrayList.class);
        PackageParser$Package_activities = PackageParser$Package.field("activities").ofGenericType(ArrayList.class);
        PackageParser$Package_services = PackageParser$Package.field("services").ofGenericType(ArrayList.class);
        PackageParser$Package_receivers = PackageParser$Package.field("receivers").ofGenericType(ArrayList.class);
        PackageParser$Package_providers = PackageParser$Package.field("providers").ofGenericType(ArrayList.class);
        PackageParser$Package_applicationInfo = PackageParser$Package.field("applicationInfo").ofType(ApplicationInfo.class);
        PackageParser$Package_packageName = PackageParser$Package.field("packageName").ofGenericType(String.class);
        PackageParser$ActivityIntentInfo_activity = PackageParser$ActivityIntentInfo.field("activity").ofType(PackageParser$Activity.getmClass());
        PackageParser$ServiceIntentInfo_service = PackageParser$ServiceIntentInfo.field("service").ofType(PackageParser$Service.getmClass());
        PackageParser$ProviderIntentInfo_provider = PackageParser$ProviderIntentInfo.field("provider").ofType(PackageParser$Provider.getmClass());
        PackageParser$Provider_info = PackageParser$Provider.field("info").ofType(ProviderInfo.class);
        if(Build.VERSION.SDK_INT>25 || (Build.VERSION.SDK_INT==25 && Build.VERSION.PREVIEW_SDK_INT>0)) {
            ActivityManager_IActivityManagerSingleton = ActivityManager.staticField("IActivityManagerSingleton");
        }else{
            ActivityManagerNative_gDefault = ActivityManagerNative.staticField("gDefault");
        }
        Singleton_mInstance = Singleton.field("mInstance");
        ActivityThread$AppBindData_providers = ActivityThread$AppBindData.field("providers").ofGenericType(List.class);
        ActivityThread_mBoundApplication = ActivityThread.field("mBoundApplication");
        ContextImpl_mPackageInfo = ContextImpl.field("mPackageInfo");
        AssetManager_mStringBlocks = AssetManager.field("mStringBlocks");
        ApplicationLoaders_mLoaders = ApplicationLoaders.field("mLoaders").ofGenericType(Map.class);
    }

    public static void allMethods() throws HackAssertionException {

        ActivityThread_currentActivityThread = ActivityThread.method("currentActivityThread");
        AssetManager_addAssetPath = AssetManager.method("addAssetPath", String.class);
        if(Build.VERSION.SDK_INT>=24) {
            AssetManager_addAssetPathAsSharedLibrary = AssetManager.method("addAssetPathAsSharedLibrary", String.class);
        }
        Application_attach = Application.method("attach", Context.class);
        PackageParser$Component_getComponentName = PackageParser$Component.method("getComponentName");
        ClassLoader_findLibrary = ClassLoader.method("findLibrary", String.class);
        ContextImpl_setOuterContext = ContextImpl.method("setOuterContext",Context.class);

        if (LexFile != null && LexFile.getmClass() !=null ) {
            LexFile_loadLex = LexFile.method("loadLex", String.class, int.class);
            LexFile_loadClass = LexFile.method("loadClass", String.class, java.lang.ClassLoader.class);
            LexFile_close = LexFile.method("close");
            DexClassLoader_findClass = DexClassLoader.method("findClass", String.class);
        }

        try {
            if (Build.VERSION.SDK_INT>20){
                AssetManager_getResourceIdentifier = AssetManager.method("getResourceIdentifier", String.class, String.class, String.class);
                AssetManager_ensureStringBlocks = AssetManager.method("ensureStringBlocks");
            }
        } catch (Throwable e) {
        }

        ActivityThread_installContentProviders = ActivityThread.method("installContentProviders",Context.class,List.class);

//        try {
//            if (Build.VERSION.SDK_INT > 25 || (Build.VERSION.SDK_INT == 25
//                    && Build.VERSION.PREVIEW_SDK_INT > 0)) {
//                ActivityThread_installProvider = ActivityThread.method("installProvider",
//                        Context.class, ContentProviderHolder.class, ProviderInfo.class,
//                        boolean.class, boolean.class, boolean.class);
//            } else if (Build.VERSION.SDK_INT == 14) {
//                ActivityThread_installProvider = ActivityThread.method("installProvider",
//                        Context.class, IContentProvider.class, ProviderInfo.class, boolean.class);
//            } else if (Build.VERSION.SDK_INT == 15) {
//                ActivityThread_installProvider = ActivityThread.method("installProvider",
//                        Context.class, IContentProvider.class, ProviderInfo.class, boolean.class,
//                        boolean.class);
//            } else {
//                ActivityThread_installProvider = ActivityThread.method("installProvider",
//                        Context.class, IActivityManager.ContentProviderHolder.class,
//                        ProviderInfo.class, boolean.class, boolean.class, boolean.class);
//            }
//        } catch (Throwable t) {
//            Log.w("AtlasHacks", "Error getting ActivityThread_installProvider", t);
//        }

        Service_attach = Service.method("attach",Context.class,ActivityThread.getmClass(),String.class,IBinder.class,Application.getmClass(),Object.class);

        AssetManager_addAssetPathNative = AssetManager.method("addAssetPathNative", String.class);
        if(AssetManager_addAssetPathNative==null || AssetManager_addAssetPathNative.getMethod()==null) {
            AssetManager_addAssetPathNative24 = AssetManager.method("addAssetPathNative", String.class, boolean.class);
        }
        if((AssetManager_addAssetPathNative==null || AssetManager_addAssetPathNative.getMethod()==null) &&
                (AssetManager_addAssetPathNative24==null || AssetManager_addAssetPathNative24.getMethod()==null)){
            AssetManager_addAssetPathNativeSamSung = AssetManager.method("addAssetPathNative", String.class, int.class);
        }
        AssetManager_getStringBlockCount=AssetManager.method("getStringBlockCount");
        AssetManager_getNativeStringBlock = AssetManager.method("getNativeStringBlock",int.class);
        ApplicationLoaders_getDefault = ApplicationLoaders.method("getDefault");
    }

    public static void allConstructors() throws HackAssertionException {
        if(Build.VERSION.SDK_INT<=20) {
            PackageParser_constructor = PackageParser.constructor(String.class);
        }else{
            PackageParser_constructor = PackageParser.constructor();
        }
        if(Build.VERSION.SDK_INT>=21) {
            StringBlock_constructor = StringBlock.constructor(long.class, boolean.class);
        }else {
            StringBlock_constructor = StringBlock.constructor(int.class, boolean.class);
        }
    }

    @Override
    public boolean onAssertionFailure(HackAssertionException failure) {
        if (sIsIgnoreFailure) return true;
        if (mExceptionArray == null) {
            mExceptionArray = new AssertionArrayException("atlas hack assert failed");
        }
        mExceptionArray.addException(failure);
        return true;
    }

}