/*
 * This is the source code of Telegram for Android v. 1.4.x.
 * It is licensed under GNU GPL v. 2 or later.
 * You should have received a copy of the license in this archive (see LICENSE).
 *
 * Copyright Nikolai Kudashov, 2013-2014.
 */

package org.telegram.android;

import android.app.Activity;
import android.content.Context;
import android.content.pm.ActivityInfo;
import android.content.res.Configuration;
import android.graphics.Point;
import android.graphics.Typeface;
import android.os.Build;
import android.os.Environment;
import android.view.Display;
import android.view.Surface;
import android.view.View;
import android.view.WindowManager;
import android.view.inputmethod.InputMethodManager;

import org.telegram.messenger.FileLog;
import org.telegram.messenger.R;
import org.telegram.messenger.UserConfig;
import org.telegram.ui.ApplicationLoader;

import java.io.File;
import java.util.Hashtable;
import java.util.Locale;

public class AndroidUtilities {
    private static final Hashtable<String, Typeface> typefaceCache = new Hashtable<String, Typeface>();
    private static int prevOrientation = -10;
    private static boolean waitingForSms = false;
    private static final Integer smsLock = 2;
    public static int externalCacheNotAvailableState = 0;

    public static int statusBarHeight = 0;
    public static float density = 1;
    public static Point displaySize = new Point();
    private static Boolean isTablet = null;
    private static Boolean isSmallTablet = null;

    public static int[] arrColors = {0xffee4928, 0xff41a903, 0xffe09602, 0xff0f94ed, 0xff8f3bf7, 0xfffc4380, 0xff00a1c4, 0xffeb7002};
    public static int[] arrUsersAvatars = {
            R.drawable.user_red,
            R.drawable.user_green,
            R.drawable.user_yellow,
            R.drawable.user_blue,
            R.drawable.user_violet,
            R.drawable.user_pink,
            R.drawable.user_aqua,
            R.drawable.user_orange};

    public static int[] arrGroupsAvatars = {
            R.drawable.group_red,
            R.drawable.group_green,
            R.drawable.group_yellow,
            R.drawable.group_blue,
            R.drawable.group_violet,
            R.drawable.group_pink,
            R.drawable.group_aqua,
            R.drawable.group_orange};

    public static int[] arrBroadcastAvatars = {
            R.drawable.broadcast_red,
            R.drawable.broadcast_green,
            R.drawable.broadcast_yellow,
            R.drawable.broadcast_blue,
            R.drawable.broadcast_violet,
            R.drawable.broadcast_pink,
            R.drawable.broadcast_aqua,
            R.drawable.broadcast_orange};

    static {
        density = ApplicationLoader.applicationContext.getResources().getDisplayMetrics().density;
        checkDisplaySize();
    }

    public static void lockOrientation(Activity activity) {
        if (activity == null || prevOrientation != -10) {
            return;
        }
        try {
            prevOrientation = activity.getRequestedOrientation();
            WindowManager manager = (WindowManager)activity.getSystemService(Activity.WINDOW_SERVICE);
            if (manager != null && manager.getDefaultDisplay() != null) {
                int rotation = manager.getDefaultDisplay().getRotation();
                int orientation = activity.getResources().getConfiguration().orientation;

                if (rotation == Surface.ROTATION_270) {
                    if (orientation == Configuration.ORIENTATION_PORTRAIT) {
                        activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
                    } else {
                        if (Build.VERSION.SDK_INT >= 9) {
                            activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_REVERSE_LANDSCAPE);
                        } else {
                            activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
                        }
                    }
                } else if (rotation == Surface.ROTATION_90) {
                    if (orientation == Configuration.ORIENTATION_PORTRAIT) {
                        if (Build.VERSION.SDK_INT >= 9) {
                            activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_REVERSE_PORTRAIT);
                        } else {
                            activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
                        }
                    } else {
                        activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
                    }
                } else if (rotation == Surface.ROTATION_0) {
                    if (orientation == Configuration.ORIENTATION_LANDSCAPE) {
                        activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
                    } else {
                        activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
                    }
                } else {
                    if (orientation == Configuration.ORIENTATION_LANDSCAPE) {
                        if (Build.VERSION.SDK_INT >= 9) {
                            activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_REVERSE_LANDSCAPE);
                        } else {
                            activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
                        }
                    } else {
                        if (Build.VERSION.SDK_INT >= 9) {
                            activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_REVERSE_PORTRAIT);
                        } else {
                            activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
                        }
                    }
                }
            }
        } catch (Exception e) {
            FileLog.e("tmessages", e);
        }
    }

    public static void unlockOrientation(Activity activity) {
        if (activity == null) {
            return;
        }
        try {
            if (prevOrientation != -10) {
                activity.setRequestedOrientation(prevOrientation);
                prevOrientation = -10;
            }
        } catch (Exception e) {
            FileLog.e("tmessages", e);
        }
    }

    public static Typeface getTypeface(String assetPath) {
        synchronized (typefaceCache) {
            if (!typefaceCache.containsKey(assetPath)) {
                try {
                    Typeface t = Typeface.createFromAsset(ApplicationLoader.applicationContext.getAssets(), assetPath);
                    typefaceCache.put(assetPath, t);
                } catch (Exception e) {
                    FileLog.e("Typefaces", "Could not get typeface '" + assetPath + "' because " + e.getMessage());
                    return null;
                }
            }
            return typefaceCache.get(assetPath);
        }
    }

    public static boolean isWaitingForSms() {
        boolean value = false;
        synchronized (smsLock) {
            value = waitingForSms;
        }
        return value;
    }

    public static void setWaitingForSms(boolean value) {
        synchronized (smsLock) {
            waitingForSms = value;
        }
    }

    public static void showKeyboard(View view) {
        if (view == null) {
            return;
        }
        InputMethodManager inputManager = (InputMethodManager)view.getContext().getSystemService(Context.INPUT_METHOD_SERVICE);
        inputManager.showSoftInput(view, InputMethodManager.SHOW_IMPLICIT);

        ((InputMethodManager) view.getContext().getSystemService(Context.INPUT_METHOD_SERVICE)).showSoftInput(view, 0);
    }

    public static boolean isKeyboardShowed(View view) {
        if (view == null) {
            return false;
        }
        InputMethodManager inputManager = (InputMethodManager) view.getContext().getSystemService(Context.INPUT_METHOD_SERVICE);
        return inputManager.isActive(view);
    }

    public static void hideKeyboard(View view) {
        if (view == null) {
            return;
        }
        InputMethodManager imm = (InputMethodManager) view.getContext().getSystemService(Context.INPUT_METHOD_SERVICE);
        if (!imm.isActive()) {
            return;
        }
        imm.hideSoftInputFromWindow(view.getWindowToken(), 0);
    }

    public static File getCacheDir() {
        if (externalCacheNotAvailableState == 1 || externalCacheNotAvailableState == 0 && Environment.getExternalStorageState().startsWith(Environment.MEDIA_MOUNTED)) {
            externalCacheNotAvailableState = 1;
            try {
                File file = ApplicationLoader.applicationContext.getExternalCacheDir();
                if (file != null) {
                    return file;
                }
            } catch (Exception e) {
                FileLog.e("tmessages", e);
            }
        }
        externalCacheNotAvailableState = 2;
        try {
            File file = ApplicationLoader.applicationContext.getCacheDir();
            if (file != null) {
                return file;
            }
        } catch (Exception e) {
            FileLog.e("tmessages", e);
        }
        return new File("");
    }

    public static int dp(int value) {
        return (int)(Math.max(1, density * value));
    }

    public static int dpf(float value) {
        return (int)Math.ceil(density * value);
    }

    public static void checkDisplaySize() {
        try {
            WindowManager manager = (WindowManager)ApplicationLoader.applicationContext.getSystemService(Context.WINDOW_SERVICE);
            if (manager != null) {
                Display display = manager.getDefaultDisplay();
                if (display != null) {
                    if(android.os.Build.VERSION.SDK_INT < 13) {
                        displaySize.set(display.getWidth(), display.getHeight());
                    } else {
                        display.getSize(displaySize);
                    }
                    FileLog.e("tmessages", "display size = " + displaySize.x + " " + displaySize.y);
                }
            }
        } catch (Exception e) {
            FileLog.e("tmessages", e);
        }
    }

    public static long makeBroadcastId(int id) {
        return 0x0000000100000000L | ((long)id & 0x00000000FFFFFFFFL);
    }

    public static void RunOnUIThread(Runnable runnable) {
        ApplicationLoader.applicationHandler.post(runnable);
    }

    public static boolean isTablet() {
        if (isTablet == null) {
            isTablet = ApplicationLoader.applicationContext.getResources().getBoolean(R.bool.isTablet);
        }
        return isTablet;
    }

    public static boolean isSmallTablet() {
        if (isSmallTablet == null) {
            float minSide = Math.min(displaySize.x, displaySize.y) / density;
            isSmallTablet = minSide <= 700;
        }
        return isSmallTablet;
    }

    public static int getMinTabletSide() {
        if (!isSmallTablet()) {
            int smallSide = Math.min(displaySize.x, displaySize.y);
            int leftSide = smallSide * 35 / 100;
            if (leftSide < dp(320)) {
                leftSide = dp(320);
            }
            return smallSide - leftSide;
        } else {
            int smallSide = Math.min(displaySize.x, displaySize.y);
            int maxSide = Math.max(displaySize.x, displaySize.y);
            int leftSide = maxSide * 35 / 100;
            if (leftSide < dp(320)) {
                leftSide = dp(320);
            }
            return Math.min(smallSide, maxSide - leftSide);
        }
    }

    public static int getColorIndex(int id) {
        int[] arr;
        if (id >= 0) {
            arr = arrUsersAvatars;
        } else {
            arr = arrGroupsAvatars;
        }
        try {
            String str;
            if (id >= 0) {
                str = String.format(Locale.US, "%d%d", id, UserConfig.getClientUserId());
            } else {
                str = String.format(Locale.US, "%d", id);
            }
            if (str.length() > 15) {
                str = str.substring(0, 15);
            }
            java.security.MessageDigest md = java.security.MessageDigest.getInstance("MD5");
            byte[] digest = md.digest(str.getBytes());
            int b = digest[Math.abs(id % 16)];
            if (b < 0) {
                b += 256;
            }
            return Math.abs(b) % arr.length;
        } catch (Exception e) {
            FileLog.e("tmessages", e);
        }
        return id % arr.length;
    }

    public static int getColorForId(int id) {
        if (id / 1000 == 333) {
            return 0xff0f94ed;
        }
        return arrColors[getColorIndex(id)];
    }

    public static int getUserAvatarForId(int id) {
        if (id / 1000 == 333 || id / 1000 == 777) {
            return R.drawable.telegram_avatar;
        }
        return arrUsersAvatars[getColorIndex(id)];
    }

    public static int getGroupAvatarForId(int id) {
        return arrGroupsAvatars[getColorIndex(-Math.abs(id))];
    }

    public static int getBroadcastAvatarForId(int id) {
        return arrBroadcastAvatars[getColorIndex(-Math.abs(id))];
    }
}
