#!/bin/bash
#
# Copyright © 2020,2022 Dr. Helge Kreutzmann <debian@helgefjell.de>
#
# 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 3 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/>.

# This script finds all FIXMEs in manpages and prepeares as much as possible an output suitable for bug reporting

# An example of only upstream is man2/wait.2.po
# An example of both upstream and ours is man4/vcs.4.po

# CONFIG
DCSBASE=/scr/build/src/DCS/manpages-l10n/
CONFIGBASE=$DCSBASE/upstreambug/CONFIG
DIALOG=$(which dialog)
sk_temp=$((tempfile) 2>/dev/null)
SSF_MAILER=/usr/bin/mutt
SSF_BROWSER=/usr/bin/firefox
SSF_TMP=/tmp/ssf
TEMPLATE_FILE=$DCSBASE/upstreambug/TEMPLATE
SSF_LANGLIST="cs da de es fr it mk nl pl pt_BR ro"

# Allow to customize these variables if necessary
if [ -f $HOME/.config/reportupstreamrc ] ; then
    echo "Sourcing local config"
    . $HOME/.config/reportupstreamrc
fi

# Check if the files and directories exist

if [ ! -d $DCSBASE ]; then
    echo "Could not find the git repository directory for manpages-l10n under $DCSBASE"
    exit
fi

if [ ! -x $DIALOG ]; then
    echo "Could not find the the dialog program (or not executable) $DIALOG"
    exit
fi

if [ ! -x $SSF_MAILER ]; then
    echo "Could not find the the mail program (or not executable) $SSF_MAILER"
    exit
fi

if [ ! -x $SSF_BROWSER ]; then
    echo "Could not find the the mail program (or not executable) $SSF_BROWSER"
    exit
fi

if [ ! -d $SSF_TMP ]; then
    mkdir -p $SSF_TMP
    retval=$?

    if [ $retval != 0 ]; then
	echo "Dirctory for tempory files $SSF_TMP does not exist and cannot be created"
	exit
    fi
fi

echo "Please wait while scanning for FIXMEs …"
cd $DCSBASE/po

# Find all PO files with FIXME in them
for pofile in $(find . -name "*.po"  -exec grep FIXME "{}" -ls ";"  | cut -d/ -f4 | grep -v -E "min-0..-occurences.po" | LC_ALL=C sort -u); do 
    # Now look at them for each language
    for lang in $SSF_LANGLIST; do
	for checkfile in $(find $lang -name $pofile); do
#    echo $checkfile $lang $pofile
	    grep FIXME $checkfile > $SSF_TMP/ssF.FIX.$lang.$pofile
	    md5sum $SSF_TMP/ssF.FIX.$lang.$pofile | cut -d " " -f1 > $SSF_TMP/ssF.md5.$lang.$pofile
	done
    done
    mdnumtotal=$(cat $SSF_TMP/ssF.md5.*.$pofile| wc -l)
    mdunique=$(cat $SSF_TMP/ssF.md5.*.$pofile| sort -u | wc -l)
#   echo "Md5total: $mdnumtotal Md5unique: $mdunique"
#   if [ $mdnumtotal -ge 2 ] ; then 
#if [ $mdunique -eq 1 ] ; then
    if [ $mdnumtotal -ge 2 -a $mdunique -eq 1 ] ; then
#    echo "Blacklist-Kandidat $pofile"
	echo $pofile >> $SSF_TMP/ssF.BLACKLIST
    else
	echo $pofile >> $SSF_TMP/ssF.WHITELIST
	let cfcounter=0
        cfilename=""
        for cfile in $CONFIGBASE/CONFIG.*; do
	   #echo "grep -x $pofile $cfile"
	    if [ $(grep -x $pofile $cfile) ] ; then
	    let cfcounter=$cfcounter+1
	    finalfilename=$(basename $cfile)
	    fi
	done
	if [ $cfcounter -eq 0 ] ; then
	    echo "ERROR: $pofile not in any CONFIG file, please add and rerun the script" | logger -t $0
	fi
	if [ $cfcounter -gt 1 ] ; then
	    echo "ERROR: $pofile is in several ($cfcounter) CONFIG files, please fix them and rerun the script" | logger -t $0
	fi
	if [ $cfcounter -eq 1 ] ; then
	    echo $pofile >> $SSF_TMP/ssF.REPORT.$finalfilename
	fi
    fi
done

# The following line does not work, the first (largest) item is ignored??
#ls -lhS $SSF_TMP/ssF.REPORT.*| awk '{print $9}'|awk 'FS="." {print $4}'

# This is not very elegant, but works around the issue of skipping the first entry
echo "Dummy" > $SSF_TMP/ssF.list.Dummy
ls -lhS $SSF_TMP/ssF.REPORT.*| awk '{print $9}' >> $SSF_TMP/ssF.list.Dummy
ssf_ANZAHL=$(ls -l $SSF_TMP/ssF.REPORT.* |wc -l)

ssf_STOP=0
while [ $ssf_STOP -eq 0 ]; do
    echo -n "$DIALOG --clear --title \"Reporting upstream\" --menu \"Choose which package to report for\" 20 71 $ssf_ANZAHL " > $SSF_TMP/ssf.menu
    for i in $(cat $SSF_TMP/ssF.list.Dummy|awk 'FS="." {print $4}'|grep -v -E "^$"); do
	ssF_date="not reported yet"
	if [ -f $CONFIGBASE/LAST.$i ]; then
	    ssF_date=$(tail -n1 $CONFIGBASE/LAST.$i)
	fi
	echo "Entry: $i (Last reported: $ssF_date)"
	echo -n "\"$i\" \"$i (Last reported: $ssF_date)\" " >> $SSF_TMP/ssf.menu
    done
    chmod +x $SSF_TMP/ssf.menu
    bash $SSF_TMP/ssf.menu 2> $sk_temp
    retval=$?

    if [ $retval == 0 ]; then
	ssf_SELCTION=$(cat $sk_temp)

	echo $ssf_SELCTION
	bugtype=$(grep Bugtype $CONFIGBASE/CONFIG.$ssf_SELCTION)
	bfound=$?

	if [ $bfound == 0 ]; then
	    bugmethod=$(echo $bugtype|cut -d" " -f2)
	    bugaddres=$(echo $bugtype|cut -d" " -f3)
	    bnote=$(grep Note: $CONFIGBASE/CONFIG.$ssf_SELCTION|sed 's/Note: //')

	    echo "Reporting bugs for $ssf_SELCTION as $bugtype"
	    echo ""
	    echo "Please consider the following when reporting:"
	    echo "$bnote"
	    echo ""
	    echo "Now the template is prepared with all FIXMEs. Please turn the template into"
	    echo "proper text suitable for reporting. Remove duplications and FIXMEs coming"
	    echo "from upstream."
	    echo ""
	    echo "Press Enter to generate the template"
	    read
	    echo "Please wait …"
	    rm -rf $SSF_TMP/ssF.BUGTEMPLATE
	    # This command does not work, it also replace double letters by single ones
	    #cat $TEMPLATE_FILE | tr -s PACKAGE $ssf_SELCTION >> $SSF_TMP/ssF.BUGTEMPLATE
	    cat $TEMPLATE_FILE >> $SSF_TMP/ssF.BUGTEMPLATE
	    for rf in $(cat $SSF_TMP/ssF.REPORT.CONFIG.$ssf_SELCTION|sort -u); do
		find $DCSBASE -name $rf -exec msggrep -C -e FIXME -E  "{}" ";" > $SSF_TMP/ssF.BUGTEMPLATE.tmp
		if [ -s $SSF_TMP/ssF.BUGTEMPLATE.tmp ]; then
		    echo $rf >> $SSF_TMP/ssF.BUGTEMPLATE
		#find $DCSBASE -name $rf -exec msggrep -C -e FIXME -E  "{}" ";" >> $SSF_TMP/ssF.BUGTEMPLATE
		    cat $SSF_TMP/ssF.BUGTEMPLATE.tmp >> $SSF_TMP/ssF.BUGTEMPLATE
		    echo "============== End of file ================" >> $SSF_TMP/ssF.BUGTEMPLATE
		fi
	    done

	    if [ $bugmethod == "email" ]; then
		$SSF_MAILER -s "Issues in man pages of $ssf_SELCTION" -i $SSF_TMP/ssF.BUGTEMPLATE $bugaddres
	    elif [ $bugmethod == "web" ]; then
		$SSF_BROWSER $bugaddres
		vim $SSF_TMP/ssF.BUGTEMPLATE
	    elif [ $bugmethod == "reportbug" ]; then
		# Use --header= instead of --body-file?
		# FIXME: Not interactive, not asking for confirmation
		# reportbug --no-debconf --no-config-files --no-query-bts --no-check-installed --no-bug-script --body-file=$SSF_TMP/ssF.BUGTEMPLATE
		# Try this:
		# reportbug --no-debconf --no-config-files --no-query-bts --no-check-installed --no-bug-script --print --body-file=$SSF_TMP/ssF.BUGTEMPLATE
		# For now, simply create the template manually
		echo "Package: $ssf_SELCTION" > $SSF_TMP/ssF.BUGTEMPLATEr
		echo "Severity: minor" >> $SSF_TMP/ssF.BUGTEMPLATEr
		echo "Tags: patch l10n" >> $SSF_TMP/ssF.BUGTEMPLATEr
		echo "X-Debbugs-CC: mario.blaettermann@gmail.com" $SSF_TMP/ssF.BUGTEMPLATEr
		echo "" >> $SSF_TMP/ssF.BUGTEMPLATEr
		cat $SSF_TMP/ssF.BUGTEMPLATE >> $SSF_TMP/ssF.BUGTEMPLATEr
		$SSF_MAILER -s "$ssf_SELCTION: Issues in man pages" -i $SSF_TMP/ssF.BUGTEMPLATEr submit@bugs.debian.org
	    fi
	    echo "If you reported the bugs, please answer yes to the following question."
	    echo ""
	    echo "Should the bug reporting date be recorded?"
	    read -p "(y/n)> "
	    if [ $REPLY == "y" ]; then
		if [ $CONFIGBASE/LAST.$ssf_SELCT ]; then
		    date --rfc-3339=date  >> $CONFIGBASE/LAST.$ssf_SELCTION
		    git add $CONFIGBASE/LAST.$ssf_SELCTION
		else
		    date --rfc-3339=date  >> $CONFIGBASE/LAST.$ssf_SELCTION
		fi
		git commit -m "reportupstream: Reported bugs for $ssf_SELCTION" $CONFIGBASE/LAST.$ssf_SELCTION
#		echo "Writing date into $CONFIGBASE/LAST.$ssf_SELCTION"
#		date --rfc-3339=date
#	    else
#		echo "Not recording date."
	    fi
#    read
	else
	    echo "Reporting bugs unkown, check $CONFIGBASE/CONFIG.$ssf_SELCTION for the field \"bugtype\""
	    read
	fi
    else
	ssf_STOP=1
    fi
done

echo "Should the temporary directory $SSF_TMP be removed?"
read -p "(y/n)> "
if [ $REPLY == "y" ]; then
    rm -r $SSF_TMP
    retval=$?

    if [ $retval != 0 ]; then
	echo "Dirctory for tempory files $SSF_TMP could not be removed."
        exit
    fi
fi

clear

# A10 is not enough :-((
#for i in $(cat $SSF_TMP/ssF.REPORT.CONFIG.linuxmanpages); do find . -name $i -exec grep -A10 FIXME "{}" ";" -print ; done