#!/bin/bash

set -x

# shellcheck disable=SC1091
. ../../lib/sh-test-lib
OUTPUT="$(pwd)/output"
RESULT_FILE="${OUTPUT}/result.txt"
# Absolute path to this script. /home/user/bin/foo.sh
SCRIPT="$(readlink -f "${0}")"
# Absolute path this script is in. /home/user/bin
SCRIPTPATH="$(dirname "${SCRIPT}")"
echo "Script path is: ${SCRIPTPATH}"
# List of test cases
TST_CMDFILES=""
# List of test cases to be skipped
SKIPFILE=""
# LTP version
LTP_VERSION="20170929"
LTP_TMPDIR=/ltp-tmp

LTP_PATH=/opt/ltp

usage() {
    echo "Usage: ${0} [-T mm,math,syscalls]
                      [-S skipfile-lsk-juno]
                      [-s True|False]
                      [-v LTP_VERSION]
                      [-M Timeout_Multiplier]
                      [-R root_password]" 1>&2
    exit 0
}

while getopts "M:T:S:s:v:R:" arg; do
   case "$arg" in
     T)
        TST_CMDFILES="${OPTARG}"
        # shellcheck disable=SC2001
        LOG_FILE=$(echo "${OPTARG}"| sed 's,\/,_,')
        ;;
     S)
        OPT=$(echo "${OPTARG}" | grep "http")
        if [ -z "${OPT}" ] ; then
        # LTP skipfile
          SKIPFILE="-S ${SCRIPTPATH}/${OPTARG}"
        else
        # Download LTP skipfile from speficied URL
          wget "${OPTARG}" -O "skipfile"
          SKIPFILE="skipfile"
          SKIPFILE="-S ${SCRIPTPATH}/${SKIPFILE}"
        fi
        ;;
     # SKIP_INSTALL is true in case of Open Embedded builds
     # SKIP_INSTALL is flase in case of Debian builds
     s) SKIP_INSTALL="${OPTARG}";;
     v) LTP_VERSION="${OPTARG}";;
     # Slow machines need more timeout Default is 5min and multiply * MINUTES
     M) export LTP_TIMEOUT_MUL="${OPTARG}";;
     R) export PASSWD="${OPTARG}";;
  esac
done

# Install LTP test suite
install_ltp() {
    rm -rf /opt/ltp
    mkdir -p /opt/ltp
    # shellcheck disable=SC2164
    cd /opt/ltp
    # shellcheck disable=SC2140
    wget https://github.com/linux-test-project/ltp/releases/download/"${LTP_VERSION}"/ltp-full-"${LTP_VERSION}".tar.xz
    tar --strip-components=1 -Jxf ltp-full-"${LTP_VERSION}".tar.xz
    ./configure
    make -j8 all
    make SKIP_IDCHECK=1 install
}

# Parse LTP output
parse_ltp_output() {
    grep -E "PASS|FAIL|CONF"  "$1" \
        | awk '{print $1" "$2}' \
        | sed 's/PASS/pass/; s/FAIL/fail/; s/CONF/skip/'  >> "${RESULT_FILE}"
}

# Run LTP test suite
run_ltp() {
    # shellcheck disable=SC2164
    cd "${LTP_PATH}"
    # shellcheck disable=SC2174
    mkdir -m 777 -p "${LTP_TMPDIR}"

    pipe0_status "./runltp -p -q -f ${TST_CMDFILES} \
                                 -l ${OUTPUT}/LTP_${LOG_FILE}.log \
                                 -C ${OUTPUT}/LTP_${LOG_FILE}.failed \
                                 -d ${LTP_TMPDIR} \
                                    ${SKIPFILE}" "tee ${OUTPUT}/LTP_${LOG_FILE}.out"
    check_return "runltp_${LOG_FILE}"

    parse_ltp_output "${OUTPUT}/LTP_${LOG_FILE}.log"
    # Cleanup
    # don't fail the whole test job if rm fails
    rm -rf "${LTP_TMPDIR}" || true
}

# Prepare system
prep_system() {
    # Stop systemd-timesyncd if running
    if systemctl is-active systemd-timesyncd 2>/dev/null; then
        info_msg "Stopping systemd-timesyncd"
        systemctl stop systemd-timesyncd
    fi
    # userns07 requires kernel.unprivileged_userns_clone
    if [ "$(sysctl -n kernel.unprivileged_userns_clone)" -eq 0 ]; then
        info_msg "Enabling kernel.unprivileged_userns_clone"
        sysctl -w kernel.unprivileged_userns_clone=1
    fi
}

# Test run.
! check_root && error_msg "This script must be run as root"
create_out_dir "${OUTPUT}"

info_msg "About to run ltp test..."
info_msg "Output directory: ${OUTPUT}"

if [ "${SKIP_INSTALL}" = "True" ] || [ "${SKIP_INSTALL}" = "true" ]; then
    info_msg "install_ltp skipped"
else
    dist_name
    # shellcheck disable=SC2154
    case "${dist}" in
      debian|ubuntu)
        pkgs="xz-utils flex bison build-essential wget curl net-tools quota genisoimage sudo libaio-dev expect automake acl"
        install_deps "${pkgs}" "${SKIP_INSTALL}"
        ;;
      centos|fedora)
        pkgs="xz flex bison make automake gcc gcc-c++ kernel-devel wget curl net-tools quota genisoimage sudo libaio expect acl"
        install_deps "${pkgs}" "${SKIP_INSTALL}"
        ;;
      *)
        warn_msg "Unsupported distribution: package install skipped"
    esac

    # Check if mkisofs or genisoimage installed for isofs test.
    if echo "${TST_CMDFILES}" | grep 'fs'; then
        # link mkisofs to genisoimage on distributions that have replaced mkisofs with genisoimage.
        if ! which mkisofs; then
            if which genisoimage; then
                ln -s "$(which genisoimage)" /usr/bin/mkisofs
            else
                warn_msg "Neither mkisofs nor genisoimage found! Either of them is required by isofs test."
            fi
        fi
    fi

    info_msg "Run install_ltp"
    install_ltp
fi
info_msg "Running prep_system"
prep_system
info_msg "Running run_ltp"
run_ltp