#!/bin/bash

# Exit on error and show the commands as they execute.
set -ex

# Ensure we get the full path of this script's directory.
PROGDIR=`dirname $0`
PROGDIR=`cd $PROGDIR && pwd`

# Use osx-x64 instead of darwin-x64 for Mac.
# TODO: Switch the build to use darwin-x64 to be consistent with
# other Android repositories.
HOST_OS=$(uname | tr A-Z a-z | sed -e "s/darwin/osx/g")"-x64"

source $PROGDIR/setup_env_common.txt
source $PROGDIR/setup_toolchain_$HOST_OS.txt

if [[ $HOST_OS == "linux-x64" ]]; then
  crosscompile_windows=1
else
  crosscompile_windows=0
fi

run_integration_tests=0
use_xvfb=0

BUILD_NUMBER="SNAPSHOT-"`date "+%Y-%m-%dT%H:%M:%S%z"`
BUILD_FLAVOR="release"
DIST_DIR=$GPU_BUILD_ROOT/dist

function show_help {
  # Turn off command echoing so the help message is readable.
  set +x
  echo "USAGE: "`basename $0`" [options]"
  echo ""
  echo "  -b <name/number> Sets the build number (used for artifact naming)."
  echo "  -d <absolute path> Sets the distribution directory."
  echo "  -f <release|debug> Sets the build flavor."
  echo "  -h    Show this message."
  echo "  -i    Run integration tests."
  echo "  -w    Do NOT cross-compile the server for Windows."
  echo "  -x    Start an Xvfb-randr server for running integration tests"
  echo "        without an X server."
}

while getopts "b:d:f:h?iwx" opt; do
    case "$opt" in
    b)  BUILD_NUMBER=$OPTARG
        ;;
    d)  DIST_DIR=$OPTARG
        ;;
    f)  BUILD_FLAVOR=$OPTARG
        ;;
    h|\?)  show_help
        exit 0
        ;;
    i)  run_integration_tests=1
        ;;
    w)  crosscompile_windows=0
        ;;
    x)  use_xvfb=1
        ;;
    esac
done

cd $GPU_BUILD_ROOT

if [ $use_xvfb -eq 1 ]; then
  # Start a headless X server on display :42 for integration tests.
  # Xvfb is not able to run the integration tests (the cause is not entirely
  # understood, but it doesn't appear to expose GLX to the X client).
  # Instead, run Xvfb-randr, which appears to be installed as part of
  # Chrome remote desktop.
  Xvfb-randr :42 +extension GLX -screen 0 1280x1024x24 -noreset &
  export XVFB_PID=$!
  export DISPLAY=:42
fi

export GO_BUILD_FLAGS="-i -v -x -o"
export GO_TEST_FLAGS="-v -x"

go build $GO_BUILD_FLAGS $GPU_BUILD_ROOT/bin/$HOST_OS/$BUILD_FLAVOR/gapis $GPU_RELATIVE_SOURCE_PATH/server/gapis

# make.go is failing with gcc errors on the build machine,
# so disable it for now.
# TODO: Remove this once make.go runs on the build machine.
if [[ $HOST_OS == "osx-x64" ]]; then
  exit 0
fi

# Kill any existing replay daemon before running tests.
killall replayd || true

go run src/$GPU_RELATIVE_SOURCE_PATH/make.go -f -v=1 -verbose=true --disable=code cc

# Kill any existing replay daemon before running tests.
killall replayd || true

# Run non-integration tests.
go list android.googlesource.com/platform/tools/gpu/... | egrep -v '/integration/?' | xargs go test $GO_TEST_FLAGS

if [ $run_integration_tests -eq 1 ]; then
  # Run the integration tests.
  go list android.googlesource.com/platform/tools/gpu/... | egrep '/integration/?' | xargs go test $GO_TEST_FLAGS
fi

if [ ! -z $XVFB_PID ]; then
  kill $XVFB_PID
fi

killall replayd || true

if [ $crosscompile_windows -eq 1 ]; then
  go run src/$GPU_RELATIVE_SOURCE_PATH/make.go -f -v=1 -verbose=true -targetos=windows --disable=code cc:replayd
  source $PROGDIR/setup_toolchain_linux_xc_win64.txt
  go build $GO_BUILD_FLAGS $GPU_BUILD_ROOT/bin/windows-x64/$BUILD_FLAVOR/gapis.exe -ldflags="-extld=$CC" $GPU_RELATIVE_SOURCE_PATH/server/gapis
fi

# Create zip files for the build artifacts.
if [[ -n "$DIST_DIR" ]]; then
  mkdir -p $DIST_DIR
  cd $GPU_BUILD_ROOT
  for TARGET_OS in linux-x64 windows-x64 osx-x64; do
      if [[ $TARGET_OS == $HOST_OS || ( $HOST_OS == linux-x64 && $TARGET_OS == windows-x64 && $crosscompile_windows == 1 ) ]]; then
          if [[ $TARGET_OS == windows-x64 ]]; then
            EXE_EXTENSION=".exe"
          else
            EXE_EXTENSION=""
          fi

          ZIP="$DIST_DIR/gpu-tools-$TARGET_OS-$BUILD_FLAVOR-$BUILD_NUMBER.zip"
          rm -f $ZIP

          for ARTIFACT in gapis replayd; do
            zip -9rq $ZIP bin/$TARGET_OS/$BUILD_FLAVOR/$ARTIFACT$EXE_EXTENSION
          done
      fi
  done
fi