#!/bin/sh
######################################################
#
# Test encoding headers according to RFC 2047
#
######################################################

set -e

if test -z "${MH_OBJ_DIR}"; then
    srcdir=`dirname "$0"`/../..
    MH_OBJ_DIR=`cd "$srcdir" && pwd`; export MH_OBJ_DIR
fi

. "${MH_OBJ_DIR}/test/common.sh"

setup_test
testname="${MH_TEST_DIR}/$$"

#
# We're going to hardcode UTF-8 for this test.
#

LC_ALL=en_US.UTF-8; export LC_ALL

#
# Basic test of encoding a short subject
#
cat > "${testname}.basic.actual" <<EOF
From: Mr Foo Bar <foobar@example.com>
To: Somebody <somebody@example.com>
Subject: This is ä test

This is a test
EOF

cat > "${testname}.basic.expected" <<EOF
From: Mr Foo Bar <foobar@example.com>
To: Somebody <somebody@example.com>
Subject: =?UTF-8?Q?This_is_=C3=A4_test?=
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"

This is a test
EOF

mhbuild "${testname}.basic.actual"

check "${testname}.basic.actual" "${testname}.basic.expected" 'keep first'

#
# Make sure we can undo the encoding
#

run_test 'eval fmttest -outsize max -format "%(decode{subject})" -message -file "${testname}.basic.actual"' 'This is ä test'

rm -f "${testname}.basic.actual"

#
# Basic test of encoding a short subject, but with base64
#
cat > "${testname}.basic.actual" <<EOF
From: Mr Foo Bar <foobar@example.com>
To: Somebody <somebody@example.com>
Subject: This is ä test

This is a test
EOF

cat > "${testname}.basic.expected" <<EOF
From: Mr Foo Bar <foobar@example.com>
To: Somebody <somebody@example.com>
Subject: =?UTF-8?B?VGhpcyBpcyDDpCB0ZXN0?=
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"

This is a test
EOF

mhbuild -headerencoding base64 "${testname}.basic.actual"

check "${testname}.basic.actual" "${testname}.basic.expected" 'keep first'

run_test 'eval fmttest -outsize max -format "%(decode{subject})" -message -file "${testname}.basic.actual"' 'This is ä test'

rm -f "${testname}.basic.actual"

#
# Have a subject that will pick base64 as the shorter encoding
#

cat > "${testname}.autopick.actual" <<EOF
From: Mr Foo Bar <foobar@example.com>
To: Somebody <somebody@example.com>
Subject: This is ä tëst©

This is a test
EOF

cat > "${testname}.autopick.expected" <<EOF
From: Mr Foo Bar <foobar@example.com>
To: Somebody <somebody@example.com>
Subject: =?UTF-8?B?VGhpcyBpcyDDpCB0w6tzdMKp?=
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"

This is a test
EOF

mhbuild "${testname}.autopick.actual"

check "${testname}.autopick.actual" "${testname}.autopick.expected" 'keep first'

run_test 'eval fmttest -outsize max -format "%(decode{subject})" -message -file "${testname}.autopick.actual"' 'This is ä tëst©'

rm -f "${testname}.basic.autopick"

exit ${failed:-0}