#!/bin/bash
#
# By Maxim F. Stewart
# Contact: [maxim2131@gmail.com] OR [gamer1119@gmail.com]
#
# Copyright 2013 Maxim F. Stewart
#    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, see <http://www.gnu.org/licenses/>.
#---------------------------------------------------------------------------------------#

pre()
{
accss="Accessories" util="Utility" media="Multimedia" vid="Video"
audio="Audio" dev="Development" gme="Game" net="Network"
int="Internet" graph="Graphics" offce="Office" sys="System"
settngs="Settings" wine="Wine" pth="/tmp/sysMENU"

    if [ -d "${pth}"/ ]; then
         mainMENU;
    else
         startScan;
    fi
}

startScan()
{
clear
mkdir "${pth}"
touch "${pth}"/menu.list ;
sed -i "d" "${pth}"/menu.list ;
ls /usr/share/applications/ >> "${pth}"/menu.list ;

header='#!/bin/bash
INPUT=/tmp/menu.txt
dialog --clear --backtitle "Shellmen" \
--title "[ S U B - M E N U ]" \
--menu "Please Select An Option" 15 50 10 \
Main_Menu "Goes To Main Menu" \'
    echo "$header" > "${pth}"/${accss}.sh
    echo "$header" > "${pth}"/${dev}.sh
    echo "$header" > "${pth}"/${gme}.sh
    echo "$header" > "${pth}"/${int}.sh
    echo "$header" > "${pth}"/${graph}.sh
    echo "$header" > "${pth}"/${offce}.sh
    echo "$header" > "${pth}"/${media}.sh
    echo "$header" > "${pth}"/${sys}.sh
    echo "$header" > "${pth}"/${settngs}.sh
    echo "$header" > "${pth}"/${wine}.sh
menuHeaderInsert;
}

menuHeaderInsert()
{
x=$(cat "${pth}"/menu.list | wc -l) >> /dev/null ;
i="1"

    while [ $i -le $x ]; do
    # Reads the number of lines in list.txt then sets as a variable counting up to variable x
    line1=$(sed -n "${i}p" "${pth}"/menu.list);
    filename="${line1%.*}"
    execMethod=$(grep -A 0 "Exec=" /usr/share/applications/"$line1")
    catagory=$(grep -A 0 "Categories=" /usr/share/applications/"$line1")
    preComment=$(grep -A 0 "Comment=" /usr/share/applications/"$line1")
    comment=$(sed s/"Comment="//g <<< ${preComment})
    inputer=$(echo ""\"$filename"\" "\"$comment"\" \\")
    if [[ "$catagory" == *"$accss"* ]] || [[ "$catagory" == *"$util"* ]]; then
	          echo "$inputer" >> "${pth}"/${accss}.sh
	   elif [[ "$catagory" == *"$dev"* ]]; then
		           echo "$inputer" >> "${pth}"/${dev}.sh
	   elif [[ "$catagory" == *"$gme"* ]]; then
		           echo "$inputer" >> "${pth}"/${gme}.sh
	   elif [[ "$catagory" == *"$int"* ]] || [[ "$catagory" == *"$net"* ]] ; then
		           echo "$inputer" >> "${pth}"/${int}.sh
	   elif [[ "$catagory" == *"$graph"* ]]; then
		           echo "$inputer" >> "${pth}"/${graph}.sh
	   elif [[ "$catagory" == *"$offce"* ]]; then
		           echo "$inputer" >> "${pth}"/${offce}.sh
	   elif [[ "$catagory" == *"$media*" ]] \
		    || [[ "$catagory" == *"$vid"* ]] \
		    || [[ "$catagory" == *"$audio"* ]]; then
			          echo "$inputer" >> "${pth}"/${media}.sh
	   elif [[ "$catagory" == *"$sys"* ]]; then
		           echo "$inputer" >> "${pth}"/${sys}.sh
    elif [[ "$catagory" == *"$settngs"* ]]; then
		           echo "$inputer" >> "${pth}"/${settngs}.sh
	   elif [[ "$catagory" == *"$wine"* ]]; then
		           echo "$inputer" >> "${pth}"/${wine}.sh
    fi
    i=$[$i++1];
done

    echo "2>"\"'${INPUT}'"\"" | tee -a "${pth}"/*.sh
    echo 'menuitem=$(<"${INPUT}")' | tee -a "${pth}"/*.sh
    echo "case \$menuitem in" | tee -a "${pth}"/*.sh
    echo "Main_Menu) exec shellMen ;;" | tee -a "${pth}"/*.sh

    commandInsert;
}

commandInsert()
{
x=$(cat "${pth}"/menu.list | wc -l) >> /dev/null ;
i="1"

    while [ $i -le $x ]; do
    line1=$(sed -n "${i}p" "${pth}"/menu.list);
    filename="${line1%.*}"
    execMethod=$(grep -A 0 "Exec=" /usr/share/applications/"$line1")
    catagory=$(grep -A 0 "Categories=" /usr/share/applications/"$line1")
    preComment=$(grep -A 0 "Comment=" /usr/share/applications/"$line1")
    execCMD=$(echo "${filename}) ${filename} & shellMen ;;")
    if [[ "$catagory" == *"$accss"* ]] || [[ "$catagory" == *"$util"* ]]; then
             echo "$execCMD" >> "${pth}"/${accss}.sh
	   elif [[ "$catagory" == *"$dev"* ]]; then
		           echo "$execCMD" >> "${pth}"/${dev}.sh
	   elif [[ "$catagory" == *"$gme"* ]]; then
		           echo "$execCMD" >> "${pth}"/${gme}.sh
	   elif [[ "$catagory" == *"$int"* ]] || [[ "$catagory" == *"$net"* ]] ; then
		           echo "$execCMD" >> "${pth}"/${int}.sh
	   elif [[ "$catagory" == *"$graph"* ]]; then
		           echo "$execCMD" >> "${pth}"/${graph}.sh
	   elif [[ "$catagory" == *"$offce"* ]]; then
		           echo "$execCMD" >> "${pth}"/${offce}.sh
	   elif [[ "$catagory" == *"$media*" ]] \
		    || [[ "$catagory" == *"$vid"* ]] \
		    || [[ "$catagory" == *"$audio"* ]]; then
		           echo "$execCMD" >> "${pth}"/${media}.sh
	   elif [[ "$catagory" == *"$sys"* ]]; then
		           echo "$execCMD" >> "${pth}"/${sys}.sh
	   elif [[ "$catagory" == *"$settngs"* ]]; then
		           echo "$execCMD" >> "${pth}"/${settngs}.sh
    elif [[ "$catagory" == *"$wine"* ]]; then
		           echo "$execCMD" >> "${pth}"/${wine}.sh
    fi
    i=$[$i++1];
done
    echo "esac" | tee -a "${pth}"/*.sh
    chmod +x "${pth}"/*.sh
    mainMENU;
}

mainMENU()
{
INPUT=/tmp/menu.txt
    dialog --clear --backtitle "Shellmen" \
    --title "[ M A I N - M E N U ]" \
    --menu "Please Select An Option" 16 50 15 \
    Accessories "General Programs" \
    System "Main System Programs" \
    Settings "Main System Settings" \
    Multimedia "Audio & Video Programs" \
    Graphics "Image Programs" \
    Games "Gaming Programs" \
    Office "Wordprocess & Documents Programs" \
    Development "Programing Programs" \
    Internet "Various Internet Related Programs" \
    Wine "Windows Exe & Program Support" 2>"${INPUT}"
    menuitem=$(<"${INPUT}")
    case $menuitem in
	    Accessories) bash "${pth}"/Accessories.sh ;;
	    System) bash "${pth}"/System.sh ;;
	    Settings) bash "${pth}"/Settings.sh ;;
	    Multimedia) bash "${pth}"/Multimedia.sh ;;
	    Graphics) bash "${pth}"/Graphics.sh ;;
	    Games) bash "${pth}"/Game.sh ;;
	    Office) bash "${pth}"/Office.sh ;;
	    Development) bash "${pth}"/Development.sh ;;
	    Internet) bash "${pth}"/Internet.sh ;;
	    Wine) bash "${pth}"/Wine.sh ;;
	    Exit) echo "Bye!"; break ;;
    esac
}
pre;