#! /bin/bash

YELLOW="\033[1;33m"
NOCOLOR="\033[0m"
BLUE="\033[1;34m"
RED="\033[1;91m"

function happy_hedgehog {
    echo -e "\t${BLUE}"
    echo -e "\t       ___------__"
    echo -e "\t |\__-- /\       _-"
    echo -e "\t |/_   __      -"
    echo -e "\t // \ /  \    /__"
    echo -e "\t | 0 |  0 |__     --_        Gotta go fast!"
    echo -e "\t \\____-- __ \   ___-"
    echo -e "\t ( @    __/  / /_"
    echo -e "\t    -_____---   --_"
    echo -e "\t     //  \ \\   ___-"
    echo -e "\t   //|\__/  \\  \\"
    echo -e "\t   \_-\_____/  \-\\"
    echo -e "\t        // \\--\|"
    echo -e "\t   ${RED}____${BLUE}//  ||${RED}_"
    echo -e "\t${RED}  /_____\ /___\\"
    echo -e "${NOCOLOR}"
}

function sad_hedgehog {
    echo -e "\t${BLUE}"
    echo -e "\t       ___------__"
    echo -e "\t |\__-- /\       _-"
    echo -e "\t |/_    __      -"
    echo -e "\t // \  /  \    /__"
    echo -e "\t | 0 |  0 |__     --_        Gotta go sllloowwww!"
    echo -e "\t \\____-- __ \   ___-"
    echo -e "\t ( @    __   / /_"
    echo -e "\t    -_____---   --_"
    echo -e "\t     //  \ \\   ___-"
    echo -e "\t   //|\__/  \\  \\"
    echo -e "\t   \_-\_____/  \-\\"
    echo -e "\t        // \\--\|"
    echo -e "\t  ${RED} ____${BLUE}//  ||${RED}_"
    echo -e "\t${RED}  /_____\ /___\\"
    echo -e "{$NOCOLOR}"
}

function check_environment {
    if [[ -z "${ANDROID_BUILD_TOP}" ]] || [[ -z "${ANDROID_HOST_OUT}" ]] ; then
      echo -e "${RED}ANDROID_BUILD_TOP${NOCOLOR} or ${RED}ANDROID_HOST_OUT${NOCOLOR} is not set for host run"
      echo -e "Navigate to android root and run:"
      echo -e "${YELLOW}"
      echo -e ". build/envsetup.sh"
      echo -e "lunch <fish>"
      echo -e "${NOCOLOR}"
      echo
      exit 1
    fi
    if ! [ -x "$(command -v python3.8)" ] ; then
      echo -e "${RED}You must have python 3.8 installed${NOCOLOR}"
      exit 1
    fi
}

ASHMEM_OUT="/dev/shm/out"
ASHMEM_DIST="${ASHMEM_OUT}/dist"
ASHMEM_VENV="${ASHMEM_DIST}/bluetooth_venv"
ASHMEM_GOTTA_GO_FAST="/dev/shm/gottagofast"
ASHMEM_HOST_LOGS="${ASHMEM_GOTTA_GO_FAST}/logs"
ASHMEM_OUT_TARGET="${ASHMEM_GOTTA_GO_FAST}/target"
ASHMEM_SOONG="${ASHMEM_GOTTA_GO_FAST}/out/soong"
CERT_HOST_LOGS="/tmp/logs/HostOnlyCert"
CERT_DEVICE_LOGS="TODO: Add this"
CERT_TEST_VENV=${ANDROID_BUILD_TOP}/out/dist/bluetooth_venv
OUT_TARGET="${ANDROID_BUILD_TOP}/out/target"
TEST_CONFIG="${ANDROID_BUILD_TOP}/system/bt/gd/cert/android_devices_config.json"
TEST_FILTER="-tf ${ANDROID_BUILD_TOP}/system/bt/gd/cert/all_cert_testcases"

CLEAN_VENV=false
GOTTA_GO_FAST=false
NUM_REPETITIONS="1"
SKIP_SOONG_BUILD=false
USE_ASHMEM_VENV=true
VERBOSE_MODE=false

# Used for position arguments needed for later
POSITIONAL=()
function parse_options {
    while [[ $# -gt 0 ]]
    do
    key="$1"
    case $key in
        # This will delete the existing venv before running the test
        # If you updated external libraries such as ACTS, you need to add this flag
        --clean)
        CLEAN_VENV=true
        shift # past argument
        ;;
        --help)
        echo
        echo -e "${YELLOW}Help menu${NOCOLOR}"
        echo -e "==================================="
        echo -e "${BLUE}  --clean${NOCOLOR}" 
        echo -e "    Clean the virtul environment; use if ACTS has been updated." 
        echo -e "${BLUE}  --disable-ashmem-venv${NOCOLOR}" 
        echo -e "    Places the virtual environment on disk rather than in ashmem which is default." 
        echo -e "${BLUE}  --gotta-go-fast${NOCOLOR}" 
        echo -e "    Makes use of ashmem as best as possible for targeted speed increases." 
        echo -e "${BLUE}  --host${NOCOLOR}" 
        echo -e "    Run the test on the host machine [i.e. simulated]." 
        echo -e "${BLUE}  --repeat=<N>${NOCOLOR}" 
        echo -e "    Repeat the test sequence N (int) number of times." 
        echo -e "${BLUE}  --skip-soong-build${NOCOLOR}" 
        echo -e "    Skips building soong targets. Use when you are just modifying simple python files." 
        echo -e "${BLUE}  --test_config=<configfile>${NOCOLOR}" 
        echo -e "    Override default test configuration." 
        echo -e "${BLUE}  --verbose${NOCOLOR}"
        echo -e "    Displays device logs and test logs to output." 
        echo
        echo -e "Usage: $0 [--clean|--host|--repeat=<N>|--test_config=<config>] [TestGroupName[:IndividualTestName]]"
        echo -e "        ${YELLOW}e.g."
        echo -e "         $0 --host --clean SecurityTest"
        echo -e "         $0 --host --verbose SecurityTest:test_dut_initiated_display_only_display_only ${NOCOLOR}"
        echo
        shift
        exit 0
        ;;
        # This will cause the bluetooth_venv to be created in ashmem
        # Increases --clean build times by 40% (~21 seconds on my machine)
        --disable-ashmem-venv)
        USE_ASHMEM_VENV=false
        shift # past argument
        ;;
        --gotta-go-fast)
        GOTTA_GO_FAST=true
        shift # past argument
        ;;
        --host)
        TEST_CONFIG=$ANDROID_BUILD_TOP/system/bt/gd/cert/host_config.json
        shift # past argument
        ;;
        # Repeat running the specified test cases by N times in one single setup
        --repeat=*)
        NUM_REPETITIONS="${key#*=}"
        shift # past argument
        ;;
        --skip-soong-build)
        SKIP_SOONG_BUILD=true
        shift
        ;;
        --test_config=*)
        TEST_CONFIG="${key#*=}"
        shift # past argument
        ;;
        # This will log everything to both log file and stdout
        --verbose)
        VERBOSE_MODE=true
        shift # past argument
        ;;
        *)    # unknown option
        POSITIONAL+=("$1") # save it in an array for later
        shift # past argument
        ;;
    esac
    done
    set -- "${POSITIONAL[@]}" # restore positional parameters

    # Set the test filter
    if [[ -n "$1" ]] ; then
      TEST_FILTER="-tc $1"
    fi
    
    INSTALL_ARGS="--reuse-acts"
    if [ "$CLEAN_VENV" == true ] ; then
      echo -e "${YELLOW}Cleaning up existing virtualenv${NOCOLOR}"
      rm -rf $CERT_TEST_VENV/*
      rm -rf $CERT_TEST_VENV
      mkdir -p ${CERT_TEST_VENV}
      INSTALL_ARGS=""
    else
      echo -e "${YELLOW}Try to reuse existing virtualenv at ${CERT_TEST_VENV}${NOCOLOR}"
    fi

}

function soong_build {
    $ANDROID_BUILD_TOP/build/soong/soong_ui.bash --build-mode --"modules-in-a-dir" --dir="${ANDROID_BUILD_TOP}/system/bt/gd" dist bluetooth_stack_with_facade
    if [[ $? -ne 0 ]] ; then
        echo "Failed to build bluetooth_stack_with_facade"
        exit 1
    fi
}

function setup_venv {
    # Make venv in memory, decreases --clean build times by 40%
    # Caveat is you lose the venv if the computer reboots
    if [ "${USE_ASHMEM_VENV}" == true ] ; then
        echo -e "${BLUE}Using ashmem virtual environment.${NOCOLOR}"
        if [[ ! -L ${CERT_TEST_VENV} ]] ; then
            echo -e "${BLUE}"
            echo -ne "Creating ashmem dist folder..."
            mkdir -p "${ASHMEM_VENV}"
            # Ensure the directory doesn't exist
            rm -rf "${CERT_TEST_VENV}"
            echo -e "Done"
            echo -ne "Sym linking ${ASHMEM_VENV} to ${CERT_TEST_VENV}..."
            ln -s "${ASHMEM_VENV}" "${CERT_TEST_VENV}"
            echo -e "Done"
            echo -e "${NOCOLOR}"
        fi
    else
        echo -e "${RED}Not using ashmem virtual environment.${NOCOLOR}"
        if [[ -L ${CERT_TEST_VENV} ]] ; then
            echo -e "${RED}"
            echo -en "Removing sym link from ${ASHMEM_VENV} to ${CERT_TEST_VENV}..."
            rm -rf ""${ASHMEM_VENV} "${CERT_TEST_VENV}"
            echo -e "Done"
            echo -en "Cleaning up memory..."
            rm -rf "${ASHMEM_VENV}" 
            echo -e "Done"
            echo -e "${NOCOLOR}"
        fi
    fi
    python3.8 -m virtualenv --python `which python3.8` "${CERT_TEST_VENV}"
    if [[ $? -ne 0 ]] ; then
        echo "Error setting up virtualenv"
        exit 1
    fi
    
    unzip -o -q "${ANDROID_BUILD_TOP}/out/dist/bluetooth_cert_tests.zip" -d "${CERT_TEST_VENV}/acts"
    if [[ $? -ne 0 ]] ; then
        echo "Error unzipping bluetooth_cert_tests.zip"
        exit 1
    fi
    
    $(echo "${CERT_TEST_VENV}/bin/python" "${CERT_TEST_VENV}/acts/setup.py" --quiet build --force)
    if [[ $? -ne 0 ]] ; then
        echo "Error building GD Python libraries"
        exit 1
    fi
    
    $(echo "${CERT_TEST_VENV}/bin/python" "${CERT_TEST_VENV}/acts/setup.py" --quiet install --skip-build --force "${INSTALL_ARGS}")
    if [[ $? -ne 0 ]] ; then
        echo "Error installing GD Python libraries"
        exit 1
    fi

"${CERT_TEST_VENV}/bin/python" -c "
import bluetooth_packets_python3 as bp3
bp3.BaseStruct
"
if [[ $? -ne 0 ]] ; then
  echo "Setup failed as bluetooth_packets_python3 cannot be imported"
  exit 1
fi

if [ "${VERBOSE_MODE}" == true ] ; then
  TEMP_CONFIG=/tmp/temp_acts_config.json
  cat "${TEST_CONFIG}" | "${CERT_TEST_VENV}/bin/python" -c "
import sys
import json
from acts import keys
config = json.load(sys.stdin)
config['verbose_mode'] = True
print(json.dumps(config))
  " > "${TEMP_CONFIG}"
  TEST_CONFIG="${TEMP_CONFIG}"
  if [[ $? -ne 0 ]] ; then
    echo "Setup failed as verbose mode is chosen but cannot be enabled"
    exit 1
  fi
fi

}

function gotta_go_fast {
    if [ "${GOTTA_GO_FAST}" == true ] ; then
        # Call here to explicitly note the flag is in use
        happy_hedgehog
        if [[ ! -L "${CERT_HOST_LOGS}" ]] ; then
            rm -rf "${CERT_HOST_LOGS}"
            mkdir -p "${ASHMEM_HOST_LOGS}"
            ln -s "${ASHMEM_HOST_LOGS}" "${CERT_HOST_LOGS}" 
        fi

        if [[ ! -L "${OUT_TARGET}" ]] ; then
            rm -rf "${OUT_TARGET}"
            mkdir -p "${ASHMEM_OUT_TARGET}"
            ln -s  "${ASHMEM_OUT_TARGET}" "${OUT_TARGET}"
        fi
    else
        if [[ -L "${CERT_HOST_LOGS}" ]] ; then
            # Call here so we don't spam anyone not using the flag
            sad_hedgehog
            rm -rf "${CERT_HOST_LOGS}"
            rm -rf "${ASHMEM_HOST_LOGS}"
        fi

        if [[ -L "${OUT_TARGET}" ]] ; then
            rm -rf "${OUT_TARGET}"
            rm -rf "${ASHMEM_OUT_TARGET}"
        fi
    fi
}

function run_tests {
    for n in $(seq "${NUM_REPETITIONS}"); do
      $(echo "${CERT_TEST_VENV}/bin/python" "${CERT_TEST_VENV}/bin/act.py" \
          -c "${TEST_CONFIG}" \
          "${TEST_FILTER}" \
          -tp "${CERT_TEST_VENV}"/acts)
    done
    
    if [ "${CLEAN_VENV}" != true ] ; then
      echo -e "${YELLOW}NOTE:${NOCOLOR} Completed tests using existing external libraries in virtualenv."
      echo -e "${YELLOW}NOTE:${NOCOLOR} To update external libraries, please add --clean option."
    fi
}

function main {
    check_environment
    parse_options $@
    if [[ "${SKIP_SOONG_BUILD}" != true ]] ; then
        soong_build
    fi
    setup_venv
    gotta_go_fast
    run_tests
}

main $@