/**
 *  Copyright 2014 Ryszard Wiśniewski <brut.alll@gmail.com>
 *
 *  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 zhao.arsceditor.ResDecoder.data;

import java.util.logging.Logger;

/**
 * @author Ryszard Wiśniewski <brut.alll@gmail.com>
 */
public class ResConfigFlags {
	public final static int DENSITY_400 = 190;
	public final static int DENSITY_ANY = 0xFFFE;

	public final static int DENSITY_DEFAULT = 0;
	public final static int DENSITY_HIGH = 240;

	public final static int DENSITY_LOW = 120;
	public final static int DENSITY_MEDIUM = 160;
	public final static int DENSITY_NONE = 0xFFFF;

	public final static int DENSITY_TV = 213;
	public final static int DENSITY_XHIGH = 320;
	public final static int DENSITY_XXHIGH = 480;

	public final static int DENSITY_XXXHIGH = 640;
	public final static byte KEYBOARD_12KEY = 3;

	public final static byte KEYBOARD_ANY = 0;

	public final static byte KEYBOARD_NOKEYS = 1;
	public final static byte KEYBOARD_QWERTY = 2;
	public final static byte KEYSHIDDEN_ANY = 0x0;

	public final static byte KEYSHIDDEN_NO = 0x1;
	public final static byte KEYSHIDDEN_SOFT = 0x3;

	public final static byte KEYSHIDDEN_YES = 0x2;
	private static final Logger LOGGER = Logger.getLogger(ResConfigFlags.class.getName());

	public final static byte MASK_KEYSHIDDEN = 0x3;

	public final static short MASK_LAYOUTDIR = 0xc0;

	public final static byte MASK_NAVHIDDEN = 0xc;

	public final static byte MASK_SCREENLONG = 0x30;

	public final static short MASK_SCREENROUND = 0x03;

	public final static byte MASK_SCREENSIZE = 0x0f;

	public final static byte MASK_UI_MODE_NIGHT = 0x30;

	public final static byte MASK_UI_MODE_TYPE = 0x0f;

	public final static int MNC_ZERO = -1;

	public final static byte NAVHIDDEN_ANY = 0x0;

	public final static byte NAVHIDDEN_NO = 0x4;

	public final static byte NAVHIDDEN_YES = 0x8;

	public final static byte NAVIGATION_ANY = 0;

	public final static byte NAVIGATION_DPAD = 2;

	public final static byte NAVIGATION_NONAV = 1;

	public final static byte NAVIGATION_TRACKBALL = 3;
	public final static byte NAVIGATION_WHEEL = 4;
	public final static byte ORIENTATION_ANY = 0;
	public final static byte ORIENTATION_LAND = 2;
	public final static byte ORIENTATION_PORT = 1;
	public final static byte ORIENTATION_SQUARE = 3;
	public final static short SCREENLAYOUT_LAYOUTDIR_ANY = 0x00;
	public final static short SCREENLAYOUT_LAYOUTDIR_LTR = 0x40;
	public final static short SCREENLAYOUT_LAYOUTDIR_RTL = 0x80;
	public final static short SCREENLAYOUT_LAYOUTDIR_SHIFT = 0x06;
	public final static short SCREENLAYOUT_ROUND_ANY = 0;
	public final static short SCREENLAYOUT_ROUND_NO = 0x1;
	public final static short SCREENLAYOUT_ROUND_YES = 0x2;
	public final static byte SCREENLONG_ANY = 0x00;
	public final static byte SCREENLONG_NO = 0x10;
	public final static byte SCREENLONG_YES = 0x20;
	public final static byte SCREENSIZE_ANY = 0x00;
	public final static byte SCREENSIZE_LARGE = 0x03;
	public final static byte SCREENSIZE_NORMAL = 0x02;
	public final static byte SCREENSIZE_SMALL = 0x01;
	public final static byte SCREENSIZE_XLARGE = 0x04;
	public final static byte SDK_BASE = 1;

	public final static byte SDK_BASE_1_1 = 2;
	public final static byte SDK_CUPCAKE = 3;
	public final static byte SDK_DONUT = 4;
	public final static byte SDK_ECLAIR = 5;

	public final static byte SDK_ECLAIR_0_1 = 6;
	public final static byte SDK_ECLAIR_MR1 = 7;
	public final static byte SDK_FROYO = 8;
	public final static byte SDK_GINGERBREAD = 9;

	public final static byte SDK_GINGERBREAD_MR1 = 10;
	public final static byte SDK_HONEYCOMB = 11;
	public final static byte SDK_HONEYCOMB_MR1 = 12;
	public final static byte SDK_HONEYCOMB_MR2 = 13;
	public final static byte SDK_ICE_CREAM_SANDWICH = 14;
	public final static byte SDK_ICE_CREAM_SANDWICH_MR1 = 15;
	public final static byte SDK_JELLY_BEAN = 16;
	public final static byte SDK_JELLY_BEAN_MR1 = 17;
	public final static byte SDK_JELLY_BEAN_MR2 = 18;
	public final static byte SDK_KITKAT = 19;
	public final static byte SDK_LOLLIPOP = 21;

	public final static byte SDK_LOLLIPOP_MR1 = 22;

	public final static byte SDK_MNC = 23;
	// TODO: Dirty static hack. This counter should be a part of ResPackage,
	// but it would be hard right now and this feature is very rarely used.
	private static int sErrCounter = 0;
	public final static byte TOUCHSCREEN_ANY = 0;
	public final static byte TOUCHSCREEN_FINGER = 3;
	public final static byte TOUCHSCREEN_NOTOUCH = 1;

	public final static byte TOUCHSCREEN_STYLUS = 2;
	public final static byte UI_MODE_NIGHT_ANY = 0x00;
	public final static byte UI_MODE_NIGHT_NO = 0x10;
	public final static byte UI_MODE_NIGHT_YES = 0x20;

	public final static byte UI_MODE_TYPE_ANY = 0x00;
	public final static byte UI_MODE_TYPE_APPLIANCE = 0x05;
	public final static byte UI_MODE_TYPE_CAR = 0x03;
	public final static byte UI_MODE_TYPE_DESK = 0x02;

	// start - miui
	public final static byte UI_MODE_TYPE_GODZILLAUI = 0x0b;
	public final static byte UI_MODE_TYPE_HUGEUI = 0x0f;
	// end - miui
	public final static byte UI_MODE_TYPE_LARGEUI = 0x0e;
	public final static byte UI_MODE_TYPE_MEDIUMUI = 0x0d;
	public final static byte UI_MODE_TYPE_NORMAL = 0x01;

	public final static byte UI_MODE_TYPE_SMALLUI = 0x0c;
	public final static byte UI_MODE_TYPE_TELEVISION = 0x04;
	public final static byte UI_MODE_TYPE_WATCH = 0x06;
	public final int density;
	public final byte inputFlags;

	public final boolean isInvalid;
	public final byte keyboard;
	public final char[] language;
	private final char[] localeScript;

	private final char[] localeVariant;
	public final short mcc;
	public final short mnc;
	private final String mQualifiers;
	public final byte navigation;
	public final byte orientation;

	public final char[] region;
	public final short screenHeight;
	public final short screenHeightDp;
	public final byte screenLayout;

	private final byte screenLayout2;
	public final short screenWidth;
	public final short screenWidthDp;
	public final short sdkVersion;
	private final int size;
	public final short smallestScreenWidthDp;
	public final byte touchscreen;
	public final byte uiMode;

	public ResConfigFlags() {
		mcc = 0;
		mnc = 0;
		language = new char[] { '\00', '\00' };
		region = new char[] { '\00', '\00' };
		orientation = ORIENTATION_ANY;
		touchscreen = TOUCHSCREEN_ANY;
		density = DENSITY_DEFAULT;
		keyboard = KEYBOARD_ANY;
		navigation = NAVIGATION_ANY;
		inputFlags = KEYSHIDDEN_ANY | NAVHIDDEN_ANY;
		screenWidth = 0;
		screenHeight = 0;
		sdkVersion = 0;
		screenLayout = SCREENLONG_ANY | SCREENSIZE_ANY;
		uiMode = UI_MODE_TYPE_ANY | UI_MODE_NIGHT_ANY;
		smallestScreenWidthDp = 0;
		screenWidthDp = 0;
		screenHeightDp = 0;
		localeScript = null;
		localeVariant = null;
		screenLayout2 = 0;
		isInvalid = false;
		mQualifiers = "";
		size = 0;
	}

	public ResConfigFlags(short mcc, short mnc, char[] language, char[] region, byte orientation, byte touchscreen,
			int density, byte keyboard, byte navigation, byte inputFlags, short screenWidth, short screenHeight,
			short sdkVersion, byte screenLayout, byte uiMode, short smallestScreenWidthDp, short screenWidthDp,
			short screenHeightDp, char[] localeScript, char[] localeVariant, byte screenLayout2, boolean isInvalid,
			int size) {
		if (orientation < 0 || orientation > 3) {
			LOGGER.warning("Invalid orientation value: " + orientation);
			orientation = 0;
			isInvalid = true;
		}
		if (touchscreen < 0 || touchscreen > 3) {
			LOGGER.warning("Invalid touchscreen value: " + touchscreen);
			touchscreen = 0;
			isInvalid = true;
		}
		if (density < -1) {
			LOGGER.warning("Invalid density value: " + density);
			density = 0;
			isInvalid = true;
		}
		if (keyboard < 0 || keyboard > 3) {
			LOGGER.warning("Invalid keyboard value: " + keyboard);
			keyboard = 0;
			isInvalid = true;
		}
		if (navigation < 0 || navigation > 4) {
			LOGGER.warning("Invalid navigation value: " + navigation);
			navigation = 0;
			isInvalid = true;
		}

		if (localeScript != null && localeScript.length != 0) {
			if (localeScript[0] == '\00') {
				localeScript = null;
			}
		} else {
			localeScript = null;
		}

		if (localeVariant != null && localeVariant.length != 0) {
			if (localeVariant[0] == '\00') {
				localeVariant = null;
			}
		} else {
			localeVariant = null;
		}

		this.mcc = mcc;
		this.mnc = mnc;
		this.language = language;
		this.region = region;
		this.orientation = orientation;
		this.touchscreen = touchscreen;
		this.density = density;
		this.keyboard = keyboard;
		this.navigation = navigation;
		this.inputFlags = inputFlags;
		this.screenWidth = screenWidth;
		this.screenHeight = screenHeight;
		this.sdkVersion = sdkVersion;
		this.screenLayout = screenLayout;
		this.uiMode = uiMode;
		this.smallestScreenWidthDp = smallestScreenWidthDp;
		this.screenWidthDp = screenWidthDp;
		this.screenHeightDp = screenHeightDp;
		this.localeScript = localeScript;
		this.localeVariant = localeVariant;
		this.screenLayout2 = screenLayout2;
		this.isInvalid = isInvalid;
		this.size = size;
		mQualifiers = generateQualifiers();
	}

	@Override
	public boolean equals(Object obj) {
		if (obj == null) {
			return false;
		}
		if (getClass() != obj.getClass()) {
			return false;
		}
		final ResConfigFlags other = (ResConfigFlags) obj;
		return this.mQualifiers.equals(other.mQualifiers);
	}

	private String generateQualifiers() {
		StringBuilder ret = new StringBuilder();
		if (mcc != 0) {
			ret.append("-mcc").append(String.format("%03d", mcc));
			if (mnc != MNC_ZERO) {
				if (mnc != 0) {
					ret.append("-mnc");
					if (size <= 32) {
						if (mnc > 0 && mnc < 10) {
							ret.append(String.format("%02d", mnc));
						} else {
							ret.append(String.format("%03d", mnc));
						}
					} else {
						ret.append(mnc);
					}
				}
			} else {
				ret.append("-mnc00");
			}
		} else {
			if (mnc != 0) {
				ret.append("-mnc").append(mnc);
			}
		}
		ret.append(getLocaleString());

		switch (screenLayout & MASK_LAYOUTDIR) {
		case SCREENLAYOUT_LAYOUTDIR_RTL:
			ret.append("-ldrtl");
			break;
		case SCREENLAYOUT_LAYOUTDIR_LTR:
			ret.append("-ldltr");
			break;
		}
		if (smallestScreenWidthDp != 0) {
			ret.append("-sw").append(smallestScreenWidthDp).append("dp");
		}
		if (screenWidthDp != 0) {
			ret.append("-w").append(screenWidthDp).append("dp");
		}
		if (screenHeightDp != 0) {
			ret.append("-h").append(screenHeightDp).append("dp");
		}
		switch (screenLayout & MASK_SCREENSIZE) {
		case SCREENSIZE_SMALL:
			ret.append("-small");
			break;
		case SCREENSIZE_NORMAL:
			ret.append("-normal");
			break;
		case SCREENSIZE_LARGE:
			ret.append("-large");
			break;
		case SCREENSIZE_XLARGE:
			ret.append("-xlarge");
			break;
		}
		switch (screenLayout & MASK_SCREENLONG) {
		case SCREENLONG_YES:
			ret.append("-long");
			break;
		case SCREENLONG_NO:
			ret.append("-notlong");
			break;
		}
		switch (screenLayout2 & MASK_SCREENROUND) {
		case SCREENLAYOUT_ROUND_NO:
			ret.append("-notround");
			break;
		case SCREENLAYOUT_ROUND_YES:
			ret.append("-round");
			break;
		}
		switch (orientation) {
		case ORIENTATION_PORT:
			ret.append("-port");
			break;
		case ORIENTATION_LAND:
			ret.append("-land");
			break;
		case ORIENTATION_SQUARE:
			ret.append("-square");
			break;
		}
		switch (uiMode & MASK_UI_MODE_TYPE) {
		case UI_MODE_TYPE_CAR:
			ret.append("-car");
			break;
		case UI_MODE_TYPE_DESK:
			ret.append("-desk");
			break;
		case UI_MODE_TYPE_TELEVISION:
			ret.append("-television");
			break;
		case UI_MODE_TYPE_SMALLUI:
			ret.append("-smallui");
			break;
		case UI_MODE_TYPE_MEDIUMUI:
			ret.append("-mediumui");
			break;
		case UI_MODE_TYPE_LARGEUI:
			ret.append("-largeui");
			break;
		case UI_MODE_TYPE_GODZILLAUI:
			ret.append("-godzillaui");
			break;
		case UI_MODE_TYPE_HUGEUI:
			ret.append("-hugeui");
			break;
		case UI_MODE_TYPE_APPLIANCE:
			ret.append("-appliance");
			break;
		case UI_MODE_TYPE_WATCH:
			ret.append("-watch");
			break;
		}
		switch (uiMode & MASK_UI_MODE_NIGHT) {
		case UI_MODE_NIGHT_YES:
			ret.append("-night");
			break;
		case UI_MODE_NIGHT_NO:
			ret.append("-notnight");
			break;
		}
		switch (density) {
		case DENSITY_DEFAULT:
			break;
		case DENSITY_LOW:
			ret.append("-ldpi");
			break;
		case DENSITY_MEDIUM:
			ret.append("-mdpi");
			break;
		case DENSITY_HIGH:
			ret.append("-hdpi");
			break;
		case DENSITY_TV:
			ret.append("-tvdpi");
			break;
		case DENSITY_XHIGH:
			ret.append("-xhdpi");
			break;
		case DENSITY_XXHIGH:
			ret.append("-xxhdpi");
			break;
		case DENSITY_XXXHIGH:
			ret.append("-xxxhdpi");
			break;
		case DENSITY_ANY:
			ret.append("-anydpi");
			break;
		case DENSITY_NONE:
			ret.append("-nodpi");
			break;
		default:
			ret.append('-').append(density).append("dpi");
		}
		switch (touchscreen) {
		case TOUCHSCREEN_NOTOUCH:
			ret.append("-notouch");
			break;
		case TOUCHSCREEN_STYLUS:
			ret.append("-stylus");
			break;
		case TOUCHSCREEN_FINGER:
			ret.append("-finger");
			break;
		}
		switch (inputFlags & MASK_KEYSHIDDEN) {
		case KEYSHIDDEN_NO:
			ret.append("-keysexposed");
			break;
		case KEYSHIDDEN_YES:
			ret.append("-keyshidden");
			break;
		case KEYSHIDDEN_SOFT:
			ret.append("-keyssoft");
			break;
		}
		switch (keyboard) {
		case KEYBOARD_NOKEYS:
			ret.append("-nokeys");
			break;
		case KEYBOARD_QWERTY:
			ret.append("-qwerty");
			break;
		case KEYBOARD_12KEY:
			ret.append("-12key");
			break;
		}
		switch (inputFlags & MASK_NAVHIDDEN) {
		case NAVHIDDEN_NO:
			ret.append("-navexposed");
			break;
		case NAVHIDDEN_YES:
			ret.append("-navhidden");
			break;
		}
		switch (navigation) {
		case NAVIGATION_NONAV:
			ret.append("-nonav");
			break;
		case NAVIGATION_DPAD:
			ret.append("-dpad");
			break;
		case NAVIGATION_TRACKBALL:
			ret.append("-trackball");
			break;
		case NAVIGATION_WHEEL:
			ret.append("-wheel");
			break;
		}
		if (screenWidth != 0 && screenHeight != 0) {
			if (screenWidth > screenHeight) {
				ret.append(String.format("-%dx%d", screenWidth, screenHeight));
			} else {
				ret.append(String.format("-%dx%d", screenHeight, screenWidth));
			}
		}
		if (sdkVersion > 0 && sdkVersion >= getNaturalSdkVersionRequirement()) {
			ret.append("-v").append(sdkVersion);
		}
		if (isInvalid) {
			ret.append("-ERR").append(sErrCounter++);
		}

		return ret.toString();
	}

	private String getLocaleString() {
		StringBuilder sb = new StringBuilder();

		// check for old style non BCP47 tags
		// allows values-xx-rXX, values-xx, values-xxx-rXX
		// denies values-xxx, anything else
		if (localeVariant == null && localeScript == null && (region[0] != '\00' || language[0] != '\00')
				&& region.length != 3) {
			sb.append("-").append(language);
			if (region[0] != '\00') {
				sb.append("-r").append(region);
			}
		} else { // BCP47
			if (language[0] == '\00' && region[0] == '\00') {
				return sb.toString(); // early return, no language or region
			}
			sb.append("-b+");
			if (language[0] != '\00') {
				sb.append(language);
			}
			if (localeScript != null && localeScript.length == 4) {
				sb.append("+").append(localeScript);
			}
			if ((region.length == 2 || region.length == 3) && region[0] != '\00') {
				sb.append("+").append(region);
			}
			if (localeVariant != null && localeVariant.length >= 5) {
				sb.append("+").append(toUpper(localeVariant));
			}
		}
		return sb.toString();
	}

	private short getNaturalSdkVersionRequirement() {
		if ((screenLayout2 & MASK_SCREENROUND) != 0) {
			return SDK_MNC;
		}
		if (density == DENSITY_ANY) {
			return SDK_LOLLIPOP;
		}
		if (smallestScreenWidthDp != 0 || screenWidthDp != 0 || screenHeightDp != 0) {
			return SDK_HONEYCOMB_MR2;
		}
		if ((uiMode & (MASK_UI_MODE_TYPE | MASK_UI_MODE_NIGHT)) != UI_MODE_NIGHT_ANY) {
			return SDK_FROYO;
		}
		if ((screenLayout & (MASK_SCREENSIZE | MASK_SCREENLONG)) != SCREENSIZE_ANY || density != DENSITY_DEFAULT) {
			return SDK_DONUT;
		}
		return 0;
	}

	public String getQualifiers() {
		return mQualifiers;
	}

	@Override
	public int hashCode() {
		int hash = 17;
		hash = 31 * hash + this.mQualifiers.hashCode();
		return hash;
	}

	@Override
	public String toString() {
		return !getQualifiers().equals("") ? getQualifiers() : "[DEFAULT]";
	}

	private String toUpper(char[] character) {
		StringBuilder sb = new StringBuilder();
		for (char ch : character) {
			sb.append(Character.toUpperCase(ch));
		}
		return sb.toString();
	}
}
