#!/bin/sh
#
# AUTHORS:
# Renato Botelho <garga@FreeBSD.org>
# Marcus Alves Grando <mnag@FreeBSD.org>
# Eitan Adler <eadler@FreeBSD.org> (current maintainer)
#
# CONTRIBUTORS:
# Sergey Matveychuk <sem@FreeBSD.org>
# Vasil Dimov <vd@FreeBSD.org>
#
# More information: change-pr -h
#

version="3.2.0";

SPECIAL_RESP="amd64 apache eclipse emulation gnome ia64 java kde openoffice \
              perl pgsql x11 freebsd-amd64 freebsd-apache freebsd-eclipse \
	      gecko \
              freebsd-emulation freebsd-gnome freebsd-ia64 freebsd-java \
              freebsd-kde freebsd-openoffice freebsd-perl freebsd-x11 \
              freebsd-ports-bugs \
	      ports-secteam
	      secteam
	      gnats-admin"

print_usage () {
	echo "Usage: $0 [-hoafjpsc] [-Cx] [-t|-T committer] [-n email] [-m message] PR ..."
}

print_help () {
	echo "change-pr: Try to make your life with gnats a bit better"
	echo "version: $version";
	echo ""
	print_usage
	echo ""
	echo "Parameters:"
	echo ""
	echo "-h		- This help"
	echo ""
	echo "-o		- Change >State to open"
	echo "-a		- Change >State to analyzed"
	echo "-f		- Change >State to feedback"
	echo "-p		- Change >State to patched"
	echo "-s		- Change >State to suspended"
	echo "-c		- Change >State to closed"
	echo ""
	echo "-t		- Change >Responsible to you"
	echo "-T committer	- Change >Responsible to committer"
	echo "-n email		- Change >X-GNATS-Notify to email"
	echo ""
	echo "-Cx		- Change >Class field, where x could be:"
	echo "s		- sw-bug"
	echo "d		- doc-bug"
	echo "c		- change-request"
	echo "u		- update"
	echo "m		- maintainer-update"
	echo ""
	echo "-j		- Change >Category to junk"
	echo ""
	echo "-m message	- Use message to log the change"
	echo ""
	echo "To see the synopsis of PRs when you are using one of the"
	echo "symlinks (e.g. close-pr) set an env var SHOW_SYNOPSIS=1"
	echo ""
	echo "When responsible of a PR is not freebsd-*, script will ask"
	echo "you to confirm the change. You can set the default answer"
	echo "using TAKE_PR_DEFAULT to 'Y' or 'N', and, can disable the"
	echo "question setting TAKE_PR_BATCH=1 envvar."
	exit 0
}

get_RESP () {
	if [ -n "$PR_MESSAGE" ]
	then
		RESP="$PR_MESSAGE";
		return;
	fi;
	if [ -f ~/.$MODULE ]; then
		CONF=~/.$MODULE
	else
		CONF=~gnats/tools/changeprconf/.$MODULE.default
	fi

	if [ ! -f $CONF ]; then
		exit 0
	fi

	SHOW=${SHOW_SYNOPSIS-N}

	if [ "$SHOW" != "N" ]; then
		for PR in $*; do
			echo -n "$PR - "
			echo `/usr/local/bin/query-pr $PR | grep '^>Synopsis:' | sed 's,^>Synopsis:[ \t]*,,'`
		done

		echo ""
	fi

	echo "Choose:"
	NUM=1
	for x in `cat $CONF | sed 's/ /___/g'`; do
		i=`echo $x | sed 's/___/ /g; s/\"//g'`
		echo "[$NUM] $i"
		eval TEXT$NUM=\"$i\"
		NUM=`expr $NUM + 1`
	done

	echo -n "or put your text here: "
	read TMPRESP

	if [ "$TMPRESP" != "" -a "`echo $TMPRESP | sed 's/[0-9]*//g'`" = "" ]; then
		eval TEXT=\$TEXT$TMPRESP
		if [ "$TEXT" != "" ]; then
			TMPRESP="$TEXT"
		else
			TMPRESP=""
		fi
	fi

	eval RESP=\$TMPRESP
}

MODULE=`basename $0`
MODULEPATH=`echo $0 | sed "s,/$MODULE,,"`

while getopts hoafprscm:ntT:C:j o; do
	case "$o" in
		h)	print_help;;
		o)	NEW_STATE=open;;
		a)	NEW_STATE=analyzed;;
		f)	NEW_STATE=feedback;;
		p)	NEW_STATE=patched;;
		r)	echo "This option is now deprecated." > /dev/stderr;
			exit 1;;
		s)	NEW_STATE=suspended;;
		c)	NEW_STATE=closed
			CHG_RESP=1;;
		t)	CHG_RESP=1
			CHK_RESP=0
			NEW_RESP=`whoami`;;
		T)	CHG_RESP=1
			CHK_RESP=1
			NEW_RESP="$OPTARG";;
		n)	NEW_NOTIFY="$OPTARG";;
		m)	PR_MESSAGE="$OPTARG";;
		C)	NEW_CLASS_OPT="$OPTARG";;
		j)	NEW_CAT=junk;;
		[?])	print_usage
			exit 1;;
	esac
done
shift `expr $OPTIND - 1`

if [ $# -eq 0 ]; then
	print_usage
	exit 1
fi

if [ "$MODULE" = "close-pr" ]; then
	if [ $# -lt 1 ]; then
		echo "Usage: $0 PR ..."
		exit 0
	fi

	get_RESP $*

	$MODULEPATH/change-pr -c -m "$RESP" $*
	exit 0
elif [ "$MODULE" = "forward-pr" ]; then
	if [ $# -lt 2 ]; then
		echo "Usage: $0 USER PR ..."
		exit 0
	fi
	user="$1";
	shift;
	get_RESP $*

	$MODULEPATH/change-pr -m "$RESP" -T $user $*
	exit 0
elif [ "$MODULE" = "portmgr-pr" ]; then
	if [ $# -lt 1 ]; then
		echo "Usage: $0 PR ..."
		exit 0
	fi

	get_RESP $*

	$MODULEPATH/change-pr -T portmgr -m "$RESP" $*
	exit 0
elif [ "$MODULE" = "feedback-pr" ]; then
	if [ $# -lt 1 ]; then
		echo "Usage: $0 PR ..."
		exit 0
	fi

	get_RESP $*

	$MODULEPATH/change-pr -f -m "$RESP" $*
	exit 0
elif [ "$MODULE" = "analyzed-pr" ]; then
	if [ $# -lt 1 ]; then
		echo "Usage: $0 PR ..."
		exit 0
	fi

	get_RESP $*

	$MODULEPATH/change-pr -a -m "$RESP" $*
	exit 0
elif [ "$MODULE" = "open-pr" ]; then
	if [ $# -lt 1 ]; then
		echo "Usage: $0 PR ..."
		exit 0
	fi

	get_RESP $*

	$MODULEPATH/change-pr -o -m "$RESP" $*
	exit 0
elif [ "$MODULE" = "take-pr" ]; then
	if [ $# -lt 1 ]; then
		echo "Usage: $0 PR ..."
		exit 0
	fi

	get_RESP $*

	$MODULEPATH/change-pr -t -m "$RESP" $*
	exit 0
elif [ "$MODULE" = "repocopy-pr" ]; then
	echo "This state is no longer active." >/dev/stderr
	exit 1
elif [ "$MODULE" = "junk-pr" ]; then
	if [ $# -lt 1 ]; then
		echo "Usage: $0 PR ..."
		exit 0
	fi

	get_RESP $*

	$MODULEPATH/change-pr -j -c -T gnats-admin -m "$RESP" $*
	exit 0
else
fi

NEW_CLASS=""
case "$NEW_CLASS_OPT" in
	s)	NEW_CLASS="sw-bug";;
	d)	NEW_CLASS="doc-bug";;
	c)	NEW_CLASS="change-request";;
	u)	NEW_CLASS="update";;
	m)	NEW_CLASS="maintainer-update";;
esac

if [ -z "$NEW_STATE" -a -z "$CHG_RESP" -a -z "$NEW_CLASS" ]; then
	print_usage
	exit 1
fi

SPECIAL=0;
if [ "$CHK_RESP" = "1" -a "$NEW_RESP" != "" ]; then
	if [ "`expr $NEW_RESP : '\([^-]*\)'`" != "freebsd" ]; then
		for RESP in $SPECIAL_RESP; do
			if [ "$NEW_RESP" = "$RESP" ]; then
				SPECIAL=1;
			fi
		done
		id $NEW_RESP >/dev/null 2>&1
		if [ $? -ne 0 -a $SPECIAL -ne 1 ]; then
			echo >&2 "Error: $NEW_RESP is an invalid committer."
			exit 1
		fi
	fi
fi

for PR in $*; do
	CONT="${TAKE_PR_DEFAULT-Y}"

	ENT_PR=`query-pr $PR 2>&1`
	if [ $? -ne 0 ]; then
		echo >&2 "PR $PR not found"
		continue
	fi

	if [ "$CHG_RESP" = "1" ]; then
		RESP=`echo $ENT_PR | sed -E 's/^.*>Responsible: *([^ ]*).*$/\1/'`
		FREEBSD_RESP=`expr $RESP : '\([^-]*\)'`

		if [ "$FREEBSD_RESP" != "freebsd" -a "$RESP" != "`whoami`" -a -z "$TAKE_PR_BATCH" ]; then
			echo -n "The actual Responsible of PR $PR is $RESP. Continue? (y/n) [${TAKE_PR_DEFAULT-Y}]: "
			read CONT

			if [ "$CONT" = "" ]; then
				CONT="${TAKE_PR_DEFAULT-Y}"
			fi
		fi
	fi

	if [ "$CONT" = "Y" -o "$CONT" = "y" ]; then
		TMP=$MODULEPATH/change-pr.helper
		/usr/bin/env \
			OEDITOR="$EDITOR" \
			OVISUAL="$VISUAL" \
			VISUAL="$TMP" \
			EDITOR= \
			NEW_CAT="$NEW_CAT" \
			NEW_CLASS="$NEW_CLASS" \
			NEW_RESP="$NEW_RESP" \
			NEW_NOTIFY=$NEW_NOTIFY \
			NEW_STATE="$NEW_STATE" \
			PR_MESSAGE="$PR_MESSAGE" \
				/usr/local/bin/edit-pr $PR
	fi
done