#!/bin/bash
# Generate missing $1/share/mimelnk/*.desktop files based on
# error messages from running "kbuildsycoca --global"

# Updated 2009-04-14 to handle running under kde4 and
#    to handle not finding any undefined mimetypes

set -u # Show usage of unset variables as an error, to help catch typos.

#set -v -x # Turn on for debugging.

GetUndefinedMimeTypes() {

    local -a GrepOutput # Declare array for storing output from grep command
    local GrepLine
    local -a WordsFromLine

    FileNameTemp=`mktemp "$0".XXXXXX` # create temp file to hold command output
    `$1/bin/kbuildsycoca --global > "$FileNameTemp" 2>&1`
#    FileNameTemp="/home/dave/.xsession-errors"
    IFS=$'\n' # Break the output from the next command into one array variable per line
    GrepOutput=( $( grep mimetype $FileNameTemp | awk '{print $7 }'|sort -u ) )
    unset IFS # reset to default
    rm -f "$FileNameTemp"
    if  (( ${#GrepOutput[@]} == 0 )) ; then
        echo "No undefined mimetypes found"
        return # no undefined mimetypes found
    fi
    for GrepLine in "${GrepOutput[@]}"; do
        IFS=$'\t \';' # Break the output from the next command by tab, space, single quote and semi-colon
        WordsFromLine=(`echo "$GrepLine" | cut -f 1-10 `)
        MimeType="${WordsFromLine[1]}"
        IFS=$'\/'
        WordsFromLine=(`echo "$MimeType" | cut -f 1-10 `)
        unset IFS
        if  (( ${#WordsFromLine[@]} > 1 )) ; then
            directoryname="$1/share/mimelnk/${WordsFromLine[0]}/"
            directoryname2="/usr/share/mimelnk/${WordsFromLine[0]}/"
            filename="${WordsFromLine[1]}.desktop"
        else
            directoryname="$1/share/mimelnk/"
            directoryname2="/usr/share/mimelnk/"
            filename="${WordsFromLine[0]}.desktop"
        fi
        if [ ! -d "$directoryname" ] ; then
            echo "Creating directoryname=$directoryname"
            mkdir -p "$directoryname"
        fi
        if [ ! -d "$directoryname2" ] ; then
            echo "Creating directoryname=$directoryname2"
            mkdir -p "$directoryname2"
        fi
        if [ ! -s "$directoryname$filename" ] ; then
            echo "Creating filename=$filename in $directoryname"
            echo "[Desktop Entry]"    > "$directoryname$filename"
            echo "Encoding=UTF-8"     >> "$directoryname$filename"
            echo "Type=MimeType"      >> "$directoryname$filename"
            echo "MimeType=$MimeType" >> "$directoryname$filename"
        else
            echo " Warning MimeType $MimeType is undefined, yet $directoryname$filename already exists."
        fi
        if [ ! -s "$directoryname2$filename" ] ; then
            echo "Creating filename=$filename in $directoryname2"
            echo "[Desktop Entry]"    > "$directoryname2$filename"
            echo "Encoding=UTF-8"     >> "$directoryname2$filename"
            echo "Type=MimeType"      >> "$directoryname2$filename"
            echo "MimeType=$MimeType" >> "$directoryname2$filename"
        else
            echo " Warning MimeType $MimeType is undefined, yet $directoryname2$filename already exists."
        fi
    done
}
_uid=$(id --user)

if [ $_uid -ne 0 ] ; then
  echo " "
  echo "You need to be root to run $0"
  exit 1
fi


if  [ -x "/opt/kde3/bin/kbuildsycoca" ] ; then
    Prefix="/opt/kde3"
else
    Prefix="/usr"
fi

GetUndefinedMimeTypes "$Prefix"

exit