#!/bin/bash

if [ -z "${7}" ]; then
	echo "<report for: sabayon|gentoo> <bugzilla username> <bugzilla password> <package name> <maintainer> <build log url> <emerge info url>" >&2
	exit 1
fi

DISTRO="${1}"
BUGZILLA_USER="${2}"
BUGZILLA_PASSWORD="${3}"
PACKAGE_NAME="${4}"
MAINTAINER="${5}" # TODO
BUILD_LOG_URL="${6}"
EMERGE_INFO_URL="${7}"

if [ "${DISTRO}" = "gentoo" ]; then
	BUGZILLA_URL="https://bugs.gentoo.org"
	BUGZILLA_KEYWORDS=""
	BUGZILLA_PRODUCT="Gentoo Linux"
	BUGZILLA_COMPONENT="Ebuilds"
	BUGZILLA_PRIORITY="Low"
	BUGZILLA_SEVERITY="QA"
elif [ "${DISTRO}" = "sabayon" ]; then
	BUGZILLA_URL="https://bugs.sabayon.org"
	BUGZILLA_KEYWORDS="TINDERBOX"
	BUGZILLA_PRODUCT="Entropy"
	BUGZILLA_COMPONENT="Package"
	BUGZILLA_PRIORITY="Low"
	BUGZILLA_SEVERITY="normal"
else
	# don't file a bug then
	echo "invalid 'report for' parameter" >&2
	exit 1
fi

if [ ! -x "/usr/bin/bugz" ]; then
	echo "ouch, pybugz not installed" >&2
	exit 1
fi

BUG_TEXT="Hello,
Package in subject has shown build or install failures on Sabayon Tinderbox.
Please find emerge --info =${PACKAGE_NAME} below and build.log attached"

tmp_dir=$(mktemp -d)
if [ ! -d "${tmp_dir}" ]; then
	echo "failed to create temporary directory" >&2
	exit 1
fi

# Fetch build log URL
BUILD_LOG="${tmp_dir}/build.log"
wget "${BUILD_LOG_URL}" -O- --quiet > "${BUILD_LOG}"
if [ "${?}" != "0" ]; then
	echo "cannot wget build log url" >&2
	rm -rf "${tmp_dir}"
	exit 1
fi
if [ ! -f "${BUILD_LOG}" ]; then
	echo "cannot find build log file" >&2
	rm -rf "${tmp_dir}"
	exit 1
fi

EMERGE_INFO="${tmp_dir}/emerge.info"
wget "${EMERGE_INFO_URL}" -O- --quiet > "${EMERGE_INFO}"
if [ "${?}" != "0" ]; then
	echo "cannot wget emerge info url" >&2
	rm -rf "${tmp_dir}"
	exit 1
fi
if [ ! -f "${BUILD_LOG}" ]; then
	echo "cannot find emerge info file" >&2
	rm -rf "${tmp_dir}"
	exit 1
fi
BUG_TEXT+="

$ emerge --info =${PACKAGE_NAME}
"
BUG_TEXT+=$(cat "${EMERGE_INFO}")

TINDERBOX_ID="$(date +%s)-${RANDOM}"
echo "Submitting bug with tinderbox_id: ${TINDERBOX_ID}"

_keywords=""
if [ -n "${BUGZILLA_KEYWORDS}" ]; then
	_keywords="--keywords ${BUGZILLA_KEYWORDS}"
fi
/usr/bin/bugz -u "${BUGZILLA_USER}" -p "${BUGZILLA_PASSWORD}" --forget -b "${BUGZILLA_URL}" post \
	-t "${PACKAGE_NAME} build failure [tinderbox_id:${TINDERBOX_ID}]" -d "${BUG_TEXT}" \
	--product "${BUGZILLA_PRODUCT}" --component "${BUGZILLA_COMPONENT}" \
	--assigned-to "${MAINTAINER}" \
	--priority "${BUGZILLA_PRIORITY}" --severity "${BUGZILLA_SEVERITY}" \
	${_keywords} --batch --default-confirm Y
if [ "${?}" != "0" ]; then
	echo "ouch, cannot report bug"
	rm -rf "${tmp_dir}"
	exit 1
fi

# workaround the fact that pybugz doesn't return the newly created bug id in a reliable way
# use tinderbox_id
tmp_file=$(mktemp)
/usr/bin/bugz -q -u "${BUGZILLA_USER}" -p "${BUGZILLA_PASSWORD}" --forget -b "${BUGZILLA_URL}" search "tinderbox_id:${TINDERBOX_ID}" | \
	cut -d" " -f 1 | sed -r "s/\x1b\[\?1034h//" > "${tmp_file}"
if [ "${?}" != "0" ]; then
	echo "cannot execute search and retrieve submitted bug id"
	rm "${tmp_file}"
	rm -rf "${tmp_dir}"
	exit 1
fi
submitted_bug_id=$(cat "${tmp_file}" | cut -d" " -f 1)
rm "${tmp_file}"
echo "Realized bug id: ${submitted_bug_id}"
if [ -z "${submitted_bug_id}" ]; then
	echo "cannot find submitted bug id, cannot attach build log"
	rm -rf "${tmp_dir}"
	exit 1
fi

echo "Submitted bug to ${BUGZILLA_URL}, bug id: ${submitted_bug_id}"

# now attach the build log
cd "$(dirname "${BUILD_LOG}")"
/usr/bin/bugz -u "${BUGZILLA_USER}" -p "${BUGZILLA_PASSWORD}" --forget -b "${BUGZILLA_URL}" \
	attach "${submitted_bug_id}" "$(basename "${BUILD_LOG}")" -d "build log"
exit_st=${?}
rm -rf "${tmp_dir}"
exit ${exit_st}