#!/bin/bash
#
# $1 = perl Module e.g. File::MMagic
# $2 = Organisation (smeserver, smecontrib or user) - default smeserver
# optional (can be in any order)
#   <local> will use parameters set for local repository else it will use remote
#   <debug> turn on debug regardless of ~/.smegit/config
#   <noisy> print a line showing how it was called
# This works whether the repo and local files exist of not (it deletes them if necessary)
# However if the remote repo exists, it preserves the README.md file so that edits are not lost
# Also note: I have had difficulty deleting all the link files in the source tree!
#

if [[ -z $1 ]] ; then
	echo "************git-getperl.sh <modulename> <organization> [<local> | <debug> | <noisy>]"
	exit 0
fi

#
# Pull in parameters from a config file ~/.smegit/config
#
inifilename=$(echo ~)"/.smegit/config"
if [ ! -e $inifilename ] ; then
  # Not here, look at system default
  if [ ! -e /etc/smegit.ini ] ; then 
    echo "No ini file found $inifiename or /etc/smegit.ini"
    echo "git-getperl.sh <modulename> <organization> [<local>]"
    exit 1
  else
    initfilename="/etc/smegit.ini"
  fi
fi 

while read -r line || [[ -n "$line" ]]; do
    if [[ $line =~ ^\[.*\]$ ]]
    then
        section=${line#*[}
        section=${section%]*}
    else
        if [[ $line =~ ^[^#]*= ]]
        then
            key=${line%=*}
            value=${line#*=}
            declare "${section}_${key}=$value"
        fi
    fi
done < "$inifilename"
DEBUG=
if [ ${smegit_DEBUG} == "true" ] ; then DEBUG=true ; fi

GITEAUser=${remote_USER}
GITEAACCESSTOKEN=${remote_GITEAACCESSTOKEN}
GITEAHOST=${remote_GITEAHOST}
NOISY=
EXTRAPARAMS=
MODULENAME=$1
ORGGITEA="smeserver"
for param in $2 $3 $4 $5 $6; do
  if [ $param ] ; then
    case $param in
	  local )
    	GITEAUser=${local_USER}
    	GITEAACCESSTOKEN=${local_GITEAACCESSTOKEN}
    	GITEAHOST=${local_GITEAHOST}
		;;
	  debug )
		DEBUG=true ;;
      noisy )
        NOISY=true ;;
      * )
        ORGGITEA=$param ;;
    esac
  else
	  break
  fi
done

if [ $NOISY ] ; then echo "git-getperl.sh $1 $2 $3 $4 $5 $6" ; fi
if [ $DEBUG ] ; then echo "************found ini file: $inifilename" ; fi
# Make this null if you want lots of output. Still quite a bit anyway
QUIET="-q"
SILENT4CURL="-s" 
SILENT4MAKE="-s"
if [ $DEBUG ] ; then 
	QUIET=
	SILENT4CURL="-v"
	SILENT4MAKE=
fi
# Make this null to get curl to check ssl cert
checkSSL="-k"

LOCALUser=${local_USER}
if [[ $smegit_WORKDIR == ~* ]] ; then
    # relative to users home dir
    WORKDIR=$(echo ~)${smegit_WORKDIR:1}
else
    # absolute path
    WORKDIR=${smegit_WORKDIR}
fi
if [ $DEBUG ] ; then echo "WORKDIR=$WORKDIR" ; fi
# create repo name from perl- module with :: replaced by -
IFS=::
words=()
for i in $MODULENAME; do words+=($i) ; done
RepoName="perl"
ShortName=
for word in ${words[@]}; do 
	RepoName="$RepoName-$word"
	if [ $ShortName ] ; then
		ShortName="$ShortName-$word"
	else
		Shortname="$word"
	fi
done
if [ $DEBUG ] ; then echo "RepoName=$RepoName" ; fi
IFS="${IFS:0:3}"
RemoteRepoURL="$GITEAHOST/$ORGGITEA/$RepoName"

COMMONREPO=${smegit_COMMONREPO}

# Prepare variable for file in repo to indicate core or contrib.
# and init gitea organisation 
# Adjust where we put the repo locally accordingly.
ORGGITEA="smeserver"
if [[ "$2" == "smecontribs" ]]; then
  ORGGITEA=$2
  BASEORCONTRIB="contribs10"
  PRODUCTBUGZILLA="SME%20Contribs"
else
  BASEORCONTRIB="sme10"
  PRODUCTBUGZILLA="SME%20Server%2010.X"
fi  

# Work out if it is an SMEServer package or a 3rd party one
PACKAGETYPE="3rd Party (Maintained by Koozali)"

# check that cpanspec is installed
if command -v cpanspec >/dev/null; then
  if [ $DEBUG ] ; then echo "************cpanspec is installed"; fi
else
  echo "ERROR********************cpanspec is not installed*********** (try installing cpanspec)"
  exit 1
fi

# Check that git-lfs is installed
if command -v git-lfs > /dev/null; then
    if [ $DEBUG ] ; then echo "************Git LFS is installed" ; fi
else
    echo "ERROR********************** Git LFS is not installed ******************"
    exit 1
fi

# Check that lua is installed (needed for change-log)
if command -v lua -V > /dev/null; then
    if [ $DEBUG ] ; then echo "************lua is installed" ; fi
else
    echo "ERROR********************** lua is not installed (try EPEL)**************"
    exit 1
fi

# and check for the special scripts - changelog and BogusDateBot.sh - I think these are available in the
# mockbuild rpm, but beware Bug:12340 - changelog needs an edit to work!
if type -P change-log >/dev/null 2>&1; then
  if [ $DEBUG ] ; then echo "************change-log is installed" ; fi
else
  echo "ERROR********************change-log is not installed*********** (try installing smeserver-mockbuild)"
  exit 1
fi
if [ $DEBUG ] ; then echo "************..and also note bug:12340" ; fi

# Create work directories
cd $WORKDIR
perlFiles="$WORKDIR/$ORGGITEA/perl"
mkdir -p $perlFiles

# Make sure credentials taken from store
# The first time you pull or push it will ask for credentials and then save them in a file.
git config --global credential.helper store

#
# Create the perl repository
#
cd $perlFiles
# First delete any existing module directory tree
# if there at all 
if [ -d "$RepoName" ] ; then
	if [ $DEBUG ] ; then echo "************Deleting local CVS files" ; fi
	rm -Rf $perlFiles/$RepoName
fi

# Then get it fully from CVS
mkdir -p $perlFiles/$RepoName
cd $perlFiles/$RepoName
cpanspec "$MODULENAME"

# Check that the spec file is there
# First bet is the packagename.spec
SPECFILE=$RepoName.spec
ORIGSPECFILE=$SPECFILE
GOTONE=0
if [ ! -f  $SPECFILE ] ; then
	# See if it is a perl package which has the perl or perl-pear taken off the front
	for front in "perl-" "perl-pear-" ; do
		reg="^($front).*"
		echo "$front $RepoName $reg"
		if [[ "$RepoName" =~ $reg ]]; then
		    NEWNAME="${RepoName#$front}"
		    #echo $NEWNAME
		    SPECFILE="$NEWNAME.spec"
		    #echo $SPECFILE
		    if [ -f  $SPECFILE ] ; then
			GOTONE=1
			break
		    fi
		fi
	done
else
	GOTONE=1
fi

if [[ $GOTONE -eq 0 ]] ; then 
  echo "Cannot find .spec file: `pwd`/$ORIGSPECFILE"
  exit 1
fi

# Get the tarball file extension
EXT=$(cat "$(basename $SPECFILE)" | grep -i ^Source | head -n 1 | sed -r 's/^[S|s]ource[0..9]?:\s?//' | xargs basename | sed -E 's/^([^.]*\.)(.*)$/\2/')

# Create the local Git repository
GITFiles=$WORKDIR/$ORGGITEA
mkdir -p $GITFiles
cd $GITFiles

# Delete the local first
if [ -d "$RepoName" ] ; then
	if [ $DEBUG ] ; then echo "************Deleting local GIT files" ; fi
	rm -Rf $GITFiles/$RepoName
fi

# See if it exists on the Gitea host
if [ $DEBUG ] ; then echo "check that $GITEAHOST/$ORGGITEA/$RepoName exists" ; fi
RESPONSE=$(curl $checkSSL $SILENT4CURL -o /dev/null -w "%{http_code}" "$GITEAHOST/api/v1/repos/$ORGGITEA/$RepoName")
if [ "$RESPONSE" == "200" ]; then
    if [ $DEBUG ] ; then echo "************Repository for $RepoName already exists!" ; fi
	# Now delete the repo, re-create it and clone it in to local
	if [ $DEBUG ] ; then echo "Delete $ORGGITEA/$RepoName" ; fi
	RESPONSE=$(curl "$checkSSL" "$SILENT4CURL" -o /dev/null -w "%{http_code}" -X 'DELETE' \
		"$GITEAHOST/api/v1/repos/$ORGGITEA/$RepoName" \
		-H 'accept: application/json' \
		-H "Authorization: token $GITEAACCESSTOKEN")
	if [[ $RESPONSE == "204" || $RESPONSE == "404" ]] ; then
		if [ $DEBUG ] ; then echo "************Repository $ORGGITEA/$RepoName deleted or does not exist" ; fi
	else	
		echo "************Can NOT delete Repository $ORGGITEA/$RepoName - results will be unknown - Aborting!"
		echo "RESPONSE=$RESPONSE"
		exit 1
	fi
	# Delete all files, links and directories
	if [ $DEBUG ] ; then echo "************Deleting local GIT files" ; fi
	cd $GITFiles
	rm -Rf $GITFiles/$RepoName
else
    if [ $DEBUG ] ; then echo "************Repository for $RepoName does not exist." ; fi
fi

cd $GITFiles

#
# Re-create the repo
#
if [ $DEBUG ] ; then echo "************Creating repo for $RepoName $PACKAGETYPE" ; fi
RESPONSE=$(curl "$checkSSL" "$SILENT4CURL" -X 'POST' \
	"$GITEAHOST/api/v1/orgs/$ORGGITEA/repos"   \
	-H 'accept: application/json'   \
	-H "Authorization: token $GITEAACCESSTOKEN" \
	-H 'Content-Type: application/json'   \
	-d '{
			"auto_init": true,
			"default_branch": "master",
			"description": "'"$PACKAGETYPE git repo for $RepoName $ORGGITEA"'",
			"gitignores": "",
			"issue_labels": "Default",
			"license": "Apache-2.0",
			"name": "'"$RepoName"'",
			"private": false,
			"readme": "Default",
			"template": false,
			"trust_model": "Default Trust Model"
	}')
if [ $DEBUG ] ; then echo $RESPONSE ; fi

# And check it now exists
RESPONSE=$(curl "$SILENT4CURL" -o /dev/null -w "%{http_code}" "$GITEAHOST/api/v1/repos/$ORGGITEA/$RepoName")
if [[ "$RESPONSE" == "200" ]]; then
    if [ $DEBUG ] ; then echo "************Repository for $RepoName exists" ; fi
else
    echo "ERROR*******Repository for $RepoName has not been created ($RESPONSE)"
    exit 1
fi

# Tell repo to use koozali.org bugzilla and wiki - this does not work on CREATE currently - 19Apr2023
WIKILINK="https://wiki.koozali.org/$RepoName"

# and then update the repo parameters
RESPONSE=$(curl "$SILENT4CURL" -X 'PATCH'   "$GITEAHOST/api/v1/repos/$ORGGITEA/$RepoName"   \
	-H 'accept: application/json'   \
	-H "Authorization: token $GITEAACCESSTOKEN" \
	-H 'Content-Type: application/json'   \
	-d '{
			"external_tracker": {
				"external_tracker_format": "https://bugs.koozali.org/show_bug.cgi?id={index}",
				"external_tracker_style": "numeric",
				"external_tracker_url": "'"https://bugs.koozali.org/buglist.cgi?component=$RepoName&product=$PRODUCTBUGZILLA"'"
			},
			"external_wiki": {
				"external_wiki_url": "'"$WIKILINK"'"
			}
		}
	')
# should check response here.
if [ $DEBUG ] ; then echo $RESPONSE ; fi
#exit 0

# Pull in the auto created or updated files
cd $GITFiles
git clone "$GITEAHOST/$ORGGITEA/$RepoName.git"

if [ ! -d $GITFiles/$RepoName ] ; then 
  echo "ERROR*******Unable to access the new repo directory for $GITFiles/$RepoName"
  exit 1
fi

# Fully populate the directory (gets the tar file - which is not strictly in CVS) and creates the directory source tree
# applying the patches to the base in the tar file.
# Might need to replace this by the code from the makefile if we decide to move "make prep" to git moe likely we'll implement a new one "make gitprep".
cd $GITFiles/$RepoName
cp $perlFiles/$RepoName/* .

# create the Makefile
cat > Makefile <<- _EOT
# Makefile for source rpm: $RepoName
# \$Id: Makefile,v 1.1 2016/02/04 12:24:52 vip-ire Exp $
NAME := $RepoName
SPECFILE = \$(firstword \$(wildcard *.spec))

define find-makefile-common
for d in common ../common ../../common ; do if [ -f \$\$d/Makefile.common ] ; then if [ -f \$\$d/CVS/Root -a -w \$\$/Makefile.common ] ; then cd \$\$d ; cvs -Q update ; fi ; echo "\$\$d/Makefile.common" ; break ; fi ; done
endef

MAKEFILE_COMMON := \$(shell \$(find-makefile-common))

ifeq (\$(MAKEFILE_COMMON),)
# attept a checkout
define checkout-makefile-common
test -f CVS/Root && { cvs -Q -d \$\$(cat CVS/Root) checkout common && echo "common/Makefile.common" ; } || { echo "ERROR: I can't figure out how to checkout the 'common' module." ; exit -1 ; } >&2
endef

MAKEFILE_COMMON := \$(shell \$(checkout-makefile-common))
endif

include \$(MAKEFILE_COMMON)
_EOT

# Add file indicating which release and contribs or base - this is matched by the makefile with the contents of the branch file in the common directory
# to give the details of the release (EL7/8/9/ etc)
# This assumes SME10 and contribs10 or sme10 directory names, later releases can update the value in the file and Makefile should still work.
echo "sme11" > contriborbase

# and see if the spec file is not according to specification of <packagename>.spec
# if not rename it
if [[ $SPECFILE != $ORIGSPECFILE ]] ; then
   if [ $DEBUG ] ; then echo "************Renaming specfile from $(basename $SPECFILE) $(basename $ORIGSPECFILE)" ; fi
   mv "$(basename $SPECFILE)" "$(basename $ORIGSPECFILE)"
   SPECFILE=$ORIGSPECFILE
fi

## and there may be extra files that maybe needed, these can be identified from the "Source" spec in the .spec files
SOURCES=$(grep -i -E '^Source[0-9]*:' $(basename $SPECFILE) | cut -d: -f2- | sed 's/ //g')
if [ $DEBUG ] ; then echo "$SOURCES" ; fi

#SOURCE=$(rpm --queryformat '$SOURCE\n' --specfile $SPECFILE | head -n 1)
for fpath in $SOURCES; do
	# Needs another step incase the extraction from the spec file contains spec variables
	fpathfile=$(basename $fpath)
	if [ $DEBUG ] ; then echo "$fpathfile" ; fi
	translatefpath=$(rpm --queryformat "$fpathfile\n" --specfile $(basename $SPECFILE) | head -n 1)
	if [ $DEBUG ] ; then echo "$translatefpath" ; fi
	if [[ -f $perlFiles/$RepoName/$BASEORCONTRIB/$translatefpath ]] ; then 	
		if [ $DEBUG ] ; then echo "************Copying $perlFiles/$RepoName/$translatefpath" ; fi
		cp $perlFiles/$RepoName/$translatefpath . 
	else
		if [ $DEBUG ] ; then echo "************Not found $perlFiles/$RepoName/$translatefpath ( $fpathfile )- so not copied" ; fi
	fi
done

# Take out the logs and rpms from the git save
echo "*.rpm" >> .gitignore
echo "*.log" >> .gitignore
# and the backed up spec file from BogusDateBot.sh
echo "*spec-20*" >>.gitignore

cd $GITFiles/$RepoName
# All perl packages are Third party packages
# copy over the archive file and make sure the extension is tracked by git-lfs
if [ $DEBUG ] ; then echo "************Found 3rd party package $NAME" ; fi
git lfs install
git lfs track "*.$EXT"
git add .gitattributes
if [[ -f $perlFiles/$RepoName/$ARCHIVEFILE ]] ; then 
	if [ $DEBUG ] ; then echo "************Copying archivefile $perlFiles/$RepoName/$ARCHIVEFILE" ; fi
	cp $perlFiles/$RepoName/$ARCHIVEFILE . 
else
	if [ $DEBUG ] ; then echo "Unable to find archivefile: $perlFiles/$RepoName/$ARCHIVEFILE - nothing copied" ; fi
fi
cd $GITFiles/$RepoName

# Add the BuildRequires now needed by el8(Rocky 8)
sed -i -e '/BuildRequires/{a\BuildRequires:  perl(inc::Module::Install)' -e ':a;n;ba}' "$SPECFILE"
sed -i -e '/BuildRequires/{a\BuildRequires:  perl(ExtUtils::Manifest)' -e ':a;n;ba}' "$SPECFILE"

# Re-factor the Common directory so that it is outside the repo being created.
# one Common directory for each Organisation
# 
# See if it already exists
if [ ! -e $GITFiles/common ]; then
  #Get it
  cd $GITFiles
  git clone "${smegit_COMMONREPO}"
  if [ ! -e $GITFiles/common ]; then
    echo "ERROR*******No Common Repo found - package $RepoName"
    exit 1
  fi
else
  # Just refresh it
  cd $GITFiles/common
  git pull $QUIET
fi 

# Edit the Readme.md - try to add the description from the spec file for this package
cd $GITFiles/$RepoName
DESCRIPTION=`rpm --queryformat '%{description}\n' --specfile $SPECFILE`

# create the README.md
cat > README.md <<- _EOT
# $RepoName ($MODULENAME)

SMEServer Koozali local git repo for $RepoName

## Documentation
https://metacpan.org/pod/$MODULENAME

## Bugs
CPAN bug report are [here](https://rt.cpan.org/Public/Dist/Display.html?Name=${$ShortName})

Show list of Koozali outstanding bugs: [here](https://bugs.koozali.org/buglist.cgi?component=$RepoName&product=SME%20Server%2011.X&query_format=advanced&limit=0&bug_status=UNCONFIRMED&bug_status=NEW&bug_status=ASSIGNED&bug_status=REOPENED&bug_status=CONFIRMED)

## Description
$DESCRIPTION
_EOT

cd $GITFiles/$RepoName
# stage and commit all the files created locally
git add -A
echo "$RepoName git status" >>gitstatus.log
git status >>gitstatus.log
if [ $DEBUG ] ; then git status ; fi
COMMENT="initial create of smeserevr perl $MODULENAME on `date`"
git commit -m  "$COMMENT" $QUIET

# push the converted git repository to the remote
git remote remove origin
git remote add origin "$GITEAHOST/$ORGGITEA/$RepoName.git"
git push --force -u $QUIET origin master

# Now create the version and release tag from the specfile
VERSION_RELEASE_LONG=`rpm --queryformat '%{version} %{release}\n' --specfile $SPECFILE`
VERSION_RELEASE=${VERSION_RELEASE_LONG%%$'\n'*}
VERSION=${VERSION_RELEASE% *}
VERSION=${VERSION//./_}
RELEASE=${VERSION_RELEASE#* }
TAG=$VERSION"-"${RELEASE%.*}
if [ $DEBUG ] ; then
	echo "VERSION_RELEASE=$VERSION_RELEASE"
	echo "VERSION=$VERSION"
	echo "RELEASE=$RELEASE"
	echo "TAG=$TAG"
fi
git pull
git tag -a $TAG -m "align tag with version and release from spec file: $TAG"
git push origin --tag $TAG $QUIET


echo "$COMMENT tag:$TAG"
exit 0