/*
 * 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.ui.ApplicationLoader;

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

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();

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

    public static void lockOrientation(Activity activity) {
        if (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) {
        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;
            File file = ApplicationLoader.applicationContext.getExternalCacheDir();
            if (file != null) {
                return file;
            }
        }
        externalCacheNotAvailableState = 2;
        File file = ApplicationLoader.applicationContext.getCacheDir();
        if (file != null) {
            return file;
        }
        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);
        }
    }
}
