/*
MujMail - Simple mail client for J2ME
Copyright (C) 2006 Nguyen Son Tung <n.sontung@gmail.com>
Copyright (C) 2006 Martin Stefan <martin.stefan@centrum.cz>
Copyright (C) 2008 David Hauzar <david.hauzar.mujmail@gmail.com>
 
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

package mujmail;

import java.util.Enumeration;
import java.util.Timer;
import java.util.TimerTask;
import java.util.Vector;

import javax.microedition.lcdui.AlertType;
import javax.microedition.lcdui.Canvas;
import javax.microedition.lcdui.Command;
import javax.microedition.lcdui.CommandListener;
import javax.microedition.lcdui.Displayable;
import javax.microedition.lcdui.Font;
import javax.microedition.lcdui.Graphics;
import javax.microedition.lcdui.Image;

import mujmail.account.MailAccount;
import mujmail.tasks.TasksManager;
import mujmail.util.Functions;
import java.util.Hashtable;
import mujmail.tasks.BackgroundTask;
import mujmail.tasks.ConditionalActionRunner.SampleTestTask;
import mujmail.tasks.TasksManagerUI;
//#ifdef MUJMAIL_SEARCH
import mujmail.search.SearchWindows;
//#endif
//#ifdef MUJMAIL_DEBUG_CONSOLE
import mujmail.debug.DebugConsoleUI;
//#endif
//#ifdef MUJMAIL_SYNC
import mujmail.account.Sync;
//#endif
//#ifdef MUJMAIL_TOUCH_SCR
import mujmail.pointer.MujMailPointerEventListener;
import mujmail.pointer.MujMailPointerEventProducer;
//#endif

class MenuItem {
    String name;
    String value;
    int actionKey; //a keyboard shortcut
    Image img; //an icon

    public MenuItem(String name, String value, int actionKey, Image img) {
        this.name = name;
        this.value = value;
        this.actionKey = actionKey;
        this.img = img;
    }
}

class MenuTab {

    String name;
    int outlineColor;
    int fillColor;
    int actionKey;
    Image img;
    Vector item;
}

/**
 * Represents menu of this application.
 * To add items to the menu of the application, edit this class - see
 * constructor.
 * 
 */
public class Menu extends Canvas implements CommandListener {
    private static final boolean DEBUG = false; // Debuggin output for this class

    public static final byte ACTION = 0;
    public static final byte FOLDERS = 1;
    public static final byte SETTINGS = 2;
    public static final byte ACCOUNTS = 3;
    public static final byte UTILS = 4;
    public static final byte MAX_TABS = 5;
    public static final int BACKGROUND_COLOR = 0x00CCCCCC;
    public static final int OUTLINE_COLOR = 0x007766FF;
    public static final int FILL_COLOR = 0x00FFFFFF;
    public static final int GREY_OUTLINE_COLOR = 0x007777EE;
    public static final int GREY_FILL_COLOR = 0x00BBBBFF;
    public static final int FONT_COLOR = 0x00000000;
    public static final int SCROLLBAR_COLOR = 0x00FF0000;
    public static final int SCROLLBAR_BGCOLOR = 0x00CCCCCC;

    //public static final byte USR_BOX_FIRST_POSITION = 6; /// First empty position after standart mail boxes and separator where user mail box can take place
 /* TODO: refactor: replace numbers of order of items in menu with constants
 *  for example: tabs[tabContext].item.elementAt(0)
 *  replace with tabs[tabContext].item.elementAt(INBOX_ORDER)
*/
    public static final byte MENU_ACT_INBOX                = 0;
    public static final byte MENU_ACT_RETRIEVE_MAILS       = MENU_ACT_INBOX + 1;
    public static final byte MENU_ACT_WRITE_MAIL           = MENU_ACT_RETRIEVE_MAILS + 1;
    public static final byte MENU_ACT_SENDALL              = MENU_ACT_WRITE_MAIL + 1;
    //#ifdef MUJMAIL_SEARCH
    public static final byte MENU_ACT_SEARCH_MAILS         = MENU_ACT_SENDALL + 1;
    //#else
//#     public static final byte MENU_ACT_SEARCH_MAILS         = MENU_ACT_SENDALL;
    //#endif
    public static final byte MENU_ACT_PUSH                 = MENU_ACT_SEARCH_MAILS + 1;
    public static final byte MENU_ACT_DISCONNECT           = MENU_ACT_PUSH + 1;
    public static final byte MENU_ACT_SERVERS_INBOX_SYNC   = MENU_ACT_DISCONNECT + 1;
    public static final byte MENU_ACT_SIZE                 = MENU_ACT_SERVERS_INBOX_SYNC + 1; // Lease this as last element

    public static final byte MENU_FOLDERS_INBOX            = 0;
    public static final byte MENU_FOLDERS_OUTBOX           = MENU_FOLDERS_INBOX + 1;
    public static final byte MENU_FOLDERS_SENTBOX          = MENU_FOLDERS_OUTBOX + 1;
    public static final byte MENU_FOLDERS_DRAFT            = MENU_FOLDERS_SENTBOX + 1;
    public static final byte MENU_FOLDERS_TRASH            = MENU_FOLDERS_DRAFT + 1;
    public static final byte MENU_FOLDERS_SEPARATOR        = MENU_FOLDERS_TRASH + 1;
    public static final byte MENU_FOLDERS_USERBOX_FIRST    = MENU_FOLDERS_SEPARATOR + 1; /// First empty position after standart mail boxes and separator where user mail box can take place

    public static final byte MENU_SETTINGS_SMTP = 0;
    public static final byte MENU_SETTINGS_RETRIEVING = MENU_SETTINGS_SMTP + 1;
    public static final byte MENU_SETTINGS_STORING_MAILS = MENU_SETTINGS_RETRIEVING + 1;
    public static final byte MENU_SETTINGS_APPEARANCE = MENU_SETTINGS_STORING_MAILS + 1;
    public static final byte MENU_SETTINGS_OTHER = MENU_SETTINGS_APPEARANCE + 1;
    public static final byte MENU_SETTINGS_POLLING = MENU_SETTINGS_OTHER + 1;
    public static final byte MENU_SETTINGS_MUJMAIL_SERVER = MENU_SETTINGS_POLLING + 1;
    public static final byte MENU_SETTINGS_SIZE            = MENU_SETTINGS_MUJMAIL_SERVER + 1; // Lease this as last element
    
    public static final byte MENU_UTILS_ADRESSBOOK         = 0;
    //#ifdef MUJMAIL_SYNC
    public static final byte MENU_UTILS_BACKUP_SETTINGS    = MENU_UTILS_ADRESSBOOK + 1;
    public static final byte MENU_UTILS_RESTORE_SETTINGS   = MENU_UTILS_BACKUP_SETTINGS + 1;
    //#else
//#     public static final byte MENU_UTILS_RESTORE_SETTINGS   = MENU_UTILS_ADRESSBOOK;
    //#endif
    public static final byte MENU_UTILS_CLEAR_DB           = MENU_UTILS_RESTORE_SETTINGS + 1;
    public static final byte MENU_UTILS_ABOUT              = MENU_UTILS_CLEAR_DB + 1;
    public static final byte MENU_UTILS_TASK_MANAGER       = MENU_UTILS_ABOUT + 1;
    public static final byte MENU_UTILS_RUN_SAMPLE_TASK    = MENU_UTILS_TASK_MANAGER + 1;
    //#ifdef MUJMAIL_DEBUG_CONSOLE
    public static final byte MENU_UTILS_DEB_MENU           = MENU_UTILS_RUN_SAMPLE_TASK + 1; // Debug
    //#else
//#     public static final byte MENU_UTILS_DEB_MENU           = MENU_UTILS_RUN_SAMPLE_TASK; // no meniu debug entry, no adding space
    //#endif
    public static final byte MENU_UTILS_SIZE               = MENU_UTILS_DEB_MENU + 1;  // Lease this as last element
    
    Command exit, cmdNew, change, delete, setPrimary, retrieve, select, clear;

    //#ifdef MUJMAIL_USR_FOLDERS
    /// User Folders commands
    Command fldAdd, fldEdit, fldDel;
    //#endif
   

    MenuTab[] tabs = new MenuTab[MAX_TABS];
    Image imAction, imInbox, imFolders, imSettings, imAccounts,
            imWriteAct, imRetrieveAct, imSendallAct, imPollAct, imClearDB, imDisc,
            imPrimaryAcc, imActiveAcc, imInActiveAcc,
            imUtilities, imBook, imAbout, imSync, imTaskManager;
    
    //#ifdef MUJMAIL_SYNC
    Image imBackup, imRestore;
    //#endif
    //#ifdef MUJMAIL_SEARCH
    Image imSearch;
    //#endif
    //#ifdef MUJMAIL_DEBUG_CONSOLE
    Image imDebug;
    //#endif
    
    MujMail mujMail;

    // tab positioning
    byte firstTab = 0;
    byte currTab = 0;
    byte maxTabs;
    byte selectedTab = 0;
    // item positioning
    short currItem = 0;
    short firstItem = 0;
    short selectedItem = 0;
    // action key variables	
    boolean starPressed = false, poundPressed = false;
    int fontHeight;
    int clientHeight;
    // TickerTask
    Timer timer;
    short sindex, aindex;
    boolean sStarted, aStarted;
    String tickerText1, tickerText2;

    //#ifdef MUJMAIL_TOUCH_SCR
    private final MujMailPointerEventProducer pointerEventTransformer;
    //#endif
    
    private Font getFirstLineFont() {
    	if (Settings.fontSize == Settings.FONT_NORMAL)
    		return Font.getFont(Font.FACE_SYSTEM, Font.STYLE_BOLD, Font.SIZE_MEDIUM);
    	else 
    		return Font.getFont(Font.FACE_SYSTEM, Font.STYLE_BOLD, Font.SIZE_LARGE);
    }

    private Font getSecondLineFont() {
    	if (Settings.fontSize == Settings.FONT_NORMAL)
    		return Font.getFont(Font.FACE_SYSTEM, Font.STYLE_PLAIN, Font.SIZE_SMALL);
    	else 
    		return Font.getFont(Font.FACE_SYSTEM, Font.STYLE_PLAIN, Font.SIZE_MEDIUM);
    }

    private class TickerTask extends TimerTask {

        public void run() {
            repaint();
        }
    }
    ActionKeyTask actionKeyTask;

    private class ActionKeyTask extends TimerTask {

        public void run() {
            if (starPressed) {
                starPressed = false;
            }
            if (poundPressed) {
                poundPressed = false;
            }
            repaint();
        }
    }
    Timer refreshTimer;

    private class RefreshTask extends TimerTask {

        byte tab;

        public RefreshTask(byte tab) {
            this.tab = tab;
        }

        public void run() {
            if (getSelectedTab() == tab) {
                refresh(tab, timer == null);
            } //repaint() only if it's not tickering already
            else {
                cancelRefreshTask();
            }
        }
    }

    /**
     * Creates a new instance of Menu
     * @param mujMail the main application
     */
    public Menu(MujMail mujMail) {
        this.mujMail = mujMail;

        exit = new Command(Lang.get(Lang.BTN_EXIT), Command.EXIT, 0);
        cmdNew = new Command(Lang.get(Lang.BTN_AS_NEW), Command.ITEM, 1);
        change = new Command(Lang.get(Lang.BTN_EDIT), Command.ITEM, 2);
        delete = new Command(Lang.get(Lang.BTN_DELETE), Command.ITEM, 4);
        setPrimary = new Command(Lang.get(Lang.BTN_AS_SET_PRIMARY), Command.ITEM, 5);
        retrieve = new Command(Lang.get(Lang.BTN_RTV_NEW_MAILS), Command.ITEM, 0);
        //button select is  here just to make it more convenient on the real phone, 
        //where pressing fire would not always trigger CommandListener() (but key '5' does ironically).
        select = new Command(Lang.get(Lang.BTN_SELECT), Command.OK, 0);
        clear = new Command(Lang.get(Lang.BTN_CLEAR), Command.ITEM, 6);
                
        //#ifdef MUJMAIL_USR_FOLDERS
        fldAdd = new Command(Lang.get(Lang.BTN_USR_FLD_ADD), Command.ITEM, 1);
        fldDel = new Command(Lang.get(Lang.BTN_DELETE), Command.ITEM, 2);
        fldEdit = new Command(Lang.get(Lang.BTN_EDIT), Command.ITEM, 3);
        //#endif
        
        imAction = Functions.getIcon("menu_action.png");
        imInbox = Functions.getIcon("act_inbox.png");
        imFolders = Functions.getIcon("menu_folders.png");
        imSettings = Functions.getIcon("menu_settings.png");
        imAccounts = Functions.getIcon("menu_accounts.png");
        imUtilities = Functions.getIcon("menu_utilities.png");
        imWriteAct = Functions.getIcon("act_write.png");
        imRetrieveAct = Functions.getIcon("act_retrieve.png");