#!/usr/bin/env bash
set -eu
DISPLAY_SERVER=$1
ENV_FILE=$2
PID_FILE=$3

TOP_SRCDIR=${G_TEST_SRCDIR:-$(realpath "$(dirname "$0")/..")}/..
TOP_BINDIR=${G_TEST_BUILDDIR:-$(realpath "$(dirname "$0/..")")}/..
TESTBASEDIR=${XDG_DATA_HOME:-$HOME/.local/share}/keyman
TESTDIR=${TESTBASEDIR}/test_kmx

# shellcheck source=linux/ibus-keyman/tests/scripts/test-helper.sh
. "$(dirname "$0")"/test-helper.sh

echo > "$ENV_FILE"

if [ -f "$PID_FILE" ]; then
  # kill previous instances
  "$(dirname "$0")"/teardown-tests.sh "$PID_FILE"
fi

echo > "$PID_FILE"
TEMP_DATA_DIR=$(mktemp --directory)
echo "rm -rf ${TEMP_DATA_DIR} || true" >> "$PID_FILE"

COMMON_ARCH_DIR=
[ -d "${TOP_SRCDIR}"/../../core/build/arch ] && COMMON_ARCH_DIR=${TOP_SRCDIR}/../../core/build/arch

if [ -d "${COMMON_ARCH_DIR}"/release ]; then
  COMMON_ARCH_DIR=${COMMON_ARCH_DIR}/release
elif [ -d "${COMMON_ARCH_DIR}"/debug ]; then
  COMMON_ARCH_DIR=${COMMON_ARCH_DIR}/debug
else
  echo "Can't find neither ${COMMON_ARCH_DIR}/release nor ${COMMON_ARCH_DIR}/debug"
  exit 2
fi

link_test_keyboards "${TOP_SRCDIR}/../../common/test/keyboards/baseline" "$TESTDIR" "$TESTBASEDIR"

generate_kmpjson "$TESTDIR"

if [ "$DISPLAY_SERVER" == "wayland" ]; then
  if ! can_run_wayland; then
    # support for --headless got added in mutter 40.x
    echo "ERROR: mutter doesn't support running headless. Can't run Wayland tests."
    exit 7
  fi
  echo "Running on Wayland..."
  TMPFILE=$(mktemp)
  # mutter-Message: 18:56:15.422: Using Wayland display name 'wayland-1'
  mutter --wayland --headless --no-x11 --virtual-monitor 1024x768 &> "$TMPFILE" &
  echo "kill -9 $! || true" >> "$PID_FILE"
  sleep 1s
  export WAYLAND_DISPLAY
  WAYLAND_DISPLAY=$(grep "Using Wayland display" "$TMPFILE" | cut -d"'" -f2)
  rm "$TMPFILE"
  echo "export WAYLAND_DISPLAY=\"$WAYLAND_DISPLAY\"" >> "$ENV_FILE"
else
  echo "Starting Xvfb..."
  Xvfb -screen 0 1024x768x24 :33 &> /dev/null &
  echo "kill -9 $! || true" >> "$PID_FILE"
  sleep 1
  echo "Starting Xephyr..."
  DISPLAY=:33 Xephyr :32 -screen 1024x768 &> /dev/null &
  echo "kill -9 $! || true" >> "$PID_FILE"
  sleep 1
  echo "Starting metacity"
  metacity --display=:32 &> /dev/null &
  echo "kill -9 $! || true" >> "$PID_FILE"

  export DISPLAY=:32
  echo "export DISPLAY=\"$DISPLAY\"" >> "$ENV_FILE"
fi

# Install schema to temporary directory. This removes the build dependency on the keyman package.
SCHEMA_DIR=$TEMP_DATA_DIR/glib-2.0/schemas
export XDG_DATA_DIRS=$TEMP_DATA_DIR:${XDG_DATA_DIRS-}
echo "export XDG_DATA_DIRS=\"$XDG_DATA_DIRS\"" >> "$ENV_FILE"

mkdir -p "$SCHEMA_DIR"
cp "${TOP_SRCDIR}"/../keyman-config/com.keyman.gschema.xml "$SCHEMA_DIR"/
glib-compile-schemas "$SCHEMA_DIR"

export LD_LIBRARY_PATH=${COMMON_ARCH_DIR}/src:${LD_LIBRARY_PATH-}
echo "export LD_LIBRARY_PATH=\"$LD_LIBRARY_PATH\"" >> "$ENV_FILE"

# Ubuntu 18.04 Bionic doesn't have ibus-memconf, and glib is not compiled with the keyfile
# backend enabled, so we just use the default backend. Otherwise we use the keyfile
# store which interferes less when running on a dev machine.
if [ -f /usr/libexec/ibus-memconf ]; then
  export GSETTINGS_BACKEND=keyfile
  echo "export GSETTINGS_BACKEND=\"$GSETTINGS_BACKEND\"" >> "$ENV_FILE"
  IBUS_CONFIG=--config=/usr/libexec/ibus-memconf
fi

#shellcheck disable=SC2086
ibus-daemon ${ARG_VERBOSE-} --daemonize --panel=disable --address=unix:abstract="${TEMP_DATA_DIR}/test-ibus" ${IBUS_CONFIG-} &> /tmp/ibus-daemon.log
echo "kill -9 $! || true" >> "$PID_FILE"
sleep 1s

IBUS_ADDRESS=$(ibus address)
export IBUS_ADDRESS

echo "export IBUS_ADDRESS=\"$IBUS_ADDRESS\"" >> "$ENV_FILE"

#shellcheck disable=SC2086
"${TOP_BINDIR}/src/ibus-engine-keyman" ${ARG_VERBOSE-} &> /tmp/ibus-engine-keyman.log &
echo "kill -9 $! || true" >> "$PID_FILE"
sleep 1s