UPDATER

#!/bin/sh

HERE="$(dirname "$(readlink -f "$0")")"

TERMINAL=urxvt

LAST_RELEASE=`wget -qO- https://raw.githubusercontent.com/lakshayrohila/marktext-portable/master/DATA/.MARKTEXT_LAST_RELEASE`

if [ -z "$LAST_RELEASE" ]; then
    /usr/lib/gtkdialog/box_splash -bg red -fg white -timeout 5 -text "I am having problems checking for latest release."
    if [ $? -eq 127 ]; then
        gxmessage -borderless -center -bg orange -timeout 5 "I am having problems checking for latest release."
        if [ $? -eq 127 ];then
            $TERMINAL -e sh -c "echo \"I am having problems checking for latest release.\" && sleep 5"
            echo "I am having problems checking for latest release."
        fi
    fi

    if [ ! -f "$HERE/app/marktext-x86_64.AppImage" ]; then
        exit 1
    fi

    exit 0
fi

if [ ! -f "$HERE/DATA/INSTALLED_VERSION" ]; then
    echo "none" > "$HERE/DATA/INSTALLED_VERSION"
fi

INSTALLED_VERSION=`cat "$HERE/DATA/INSTALLED_VERSION"`

if [ ! -f "$HERE/app/marktext-x86_64.AppImage" ]; then
    /usr/lib/gtkdialog/box_yesno --yes-first --no-label "Later" --info "Install MarkText!" "MarkText binary is not found! Do you want to download MarkText binary?"

    USER_ACCEPTED=$?

    if [ $USER_ACCEPTED -eq 127 ]; then
        gxmessage -center -bg orange -buttons "Yes:0,Later:1" "MarkText binary is not found! Do you want to download MarkText binary?" -title "Install MarkText!"
        USER_ACCEPTED=$?

        if [ $USER_ACCEPTED -eq 127 ];then
            $TERMINAL -e sh -c "echo \"Note that gxmessage is not found. Please install gxmessage.\" && sleep 10"
            echo "Note that gxmessage is not found. Please install gxmessage."
            exit 1
        fi
    fi

    if [ $USER_ACCEPTED -eq 0 ]; then
        $TERMINAL -e wget -P "$HERE/app/" "https://github.com/marktext/marktext/releases/download/$LAST_RELEASE/marktext-x86_64.AppImage"

        if [ $? -eq 127 ]; then
            /usr/lib/gtkdialog/box_splash -bg red -fg white -timeout 10 -text "Note that rxvt is not found. Please install rxvt."
            if [ $? -eq 127 ]; then
                gxmessage -borderless -center -bg orange -timeout 10 "Note that rxvt is not found. Please install rxvt."
            fi

            exit 1
        fi

        if [ ! -f "$HERE/app/marktext-x86_64.AppImage" ]; then
            /usr/lib/gtkdialog/box_splash -bg red -fg white -timeout 10 -text "   DOWNLOAD FAILED!  Please try again later.....    "
            if [ $? -eq 127 ]; then
                gxmessage -borderless -center -bg orange -timeout 10 "   DOWNLOAD FAILED!  Please try again later.....    "
            fi
        else
            chmod 777 "$HERE/app/marktext-x86_64.AppImage"
        fi

        echo $LAST_RELEASE > "$HERE/DATA/INSTALLED_VERSION"
    elif [ $USER_ACCEPTED -eq 1 ]; then
        exit 1
    fi
elif [ $LAST_RELEASE != $INSTALLED_VERSION ]; then
    /usr/lib/gtkdialog/box_yesno --yes-first --info "Update Available!" "A new update of MarkText is found! Do you want to update?"

    USER_ACCEPTED=$?

    if [ $USER_ACCEPTED -eq 127 ]; then
        gxmessage -center -bg orange -buttons "Yes:0,No:1" "A new update of MarkText is found! Do you want to update?" -title "Update Available!"
        USER_ACCEPTED=$?

        if [ $USER_ACCEPTED -eq 127 ];then
            $TERMINAL -e sh -c "echo \"Note that gxmessage is not found. Please install gxmessage.\" && sleep 10"
            echo "Note that gxmessage is not found. Please install gxmessage."
            exit 1
        fi
    fi

    if [ $USER_ACCEPTED -eq 0 ]; then
        rm "$HERE/app/marktext-x86_64.AppImage" >/dev/null 2>/dev/null
        $TERMINAL -e wget -P "$HERE/app/" "https://github.com/marktext/marktext/releases/download/$LAST_RELEASE/marktext-x86_64.AppImage"

        if [ $? -eq 127 ]; then
            /usr/lib/gtkdialog/box_splash -bg red -fg white -timeout 10 -text "Note that rxvt is not found. Please install rxvt."
            if [ $? -eq 127 ]; then
                gxmessage -borderless -center -bg orange -timeout 10 "Note that rxvt is not found. Please install rxvt."
            fi

            exit 1
        fi

        if [ ! -f "$HERE/app/marktext-x86_64.AppImage" ]; then
            /usr/lib/gtkdialog/box_splash -bg red -fg white -timeout 10 -text "   DOWNLOAD FAILED!  Please try again later.....    "
            if [ $? -eq 127 ]; then
                gxmessage -borderless -center -bg orange -timeout 10 "   DOWNLOAD FAILED!  Please try again later.....    "
            fi

            exit 1
        else
            chmod 777 "$HERE/app/marktext-x86_64.AppImage"
        fi

        echo $LAST_RELEASE > "$HERE/DATA/INSTALLED_VERSION"
    fi
fi