#!/usr/bin/env python3
#
# This script generates a list of testsuites that should be run as part of
# the Samba 4 test suite.

# The output of this script is parsed by selftest.pl, which then decides
# which of the tests to actually run. It will, for example, skip all tests
# listed in selftest/skip or only run a subset during "make quicktest".

# The idea is that this script outputs all of the tests of Samba 4, not
# just those that are known to pass, and list those that should be skipped
# or are known to fail in selftest/skip or selftest/knownfail. This makes it
# very easy to see what functionality is still missing in Samba 4 and makes
# it possible to run the testsuite against other servers, such as Samba 3 or
# Windows that have a different set of features.

# The syntax for a testsuite is "-- TEST --" on a single line, followed
# by the name of the test, the environment it needs and the command to run, all
# three separated by newlines. All other lines in the output are considered
# comments.
from __future__ import print_function

import os
import subprocess
import sys


def srcdir():
    alternate_path = os.path.join(os.path.dirname(os.path.abspath(__file__)), "..")
    return os.path.normpath(os.getenv("SRCDIR", alternate_path))


def source4dir():
    return os.path.normpath(os.path.join(srcdir(), "source4"))


def source3dir():
    return os.path.normpath(os.path.join(srcdir(), "source3"))


def bindir():
    return os.path.normpath(os.getenv("BINDIR", "./bin"))


def binpath(name):
    return os.path.join(bindir(), name)


# Split perl variable to allow $PERL to be set to e.g. "perl -W"
perl = os.getenv("PERL", "perl").split()

if subprocess.call(perl + ["-e", "eval require Test::More;"]) == 0:
    has_perl_test_more = True
else:
    has_perl_test_more = False

python = os.getenv("PYTHON", "python")

tap2subunit = python + " " + os.path.join(srcdir(), "selftest", "tap2subunit")


def valgrindify(cmdline):
    """Run a command under valgrind, if $VALGRIND was set."""
    valgrind = os.getenv("VALGRIND")
    if valgrind is None:
        return cmdline
    return valgrind + " " + cmdline


def plantestsuite(name, env, cmd, environ={}):
    """Plan a test suite.

    :param name: Testsuite name
    :param env: Environment to run the testsuite in
    :param cmdline: Command line to run
    """
    print("-- TEST --")
    if env == "none":
        fullname = name
    else:
        fullname = "%s(%s)" % (name, env)
    print(fullname)
    print(env)

    cmdline = ""
    if environ:
        environ = dict(environ)
        cmdline_env = ["%s=%s" % item for item in environ.items()]
        cmdline = " ".join(cmdline_env) + " "

    if isinstance(cmd, list):
        cmdline += " ".join(cmd)
    else:
        cmdline += cmd

    if "$LISTOPT" in cmdline:
        raise AssertionError("test %s supports --list, but not --load-list" % name)
    print(cmdline + " 2>&1 " + " | " + add_prefix(name, env))


def add_prefix(prefix, env, support_list=False):
    if support_list:
        listopt = "$LISTOPT "
    else:
        listopt = ""
    return ("%s %s/selftest/filter-subunit %s--fail-on-empty --prefix=\"%s.\" --suffix=\"(%s)\"" %
            (python, srcdir(), listopt, prefix, env))


def plantestsuite_loadlist(name, env, cmdline):
    print("-- TEST-LOADLIST --")
    if env == "none":
        fullname = name
    else:
        fullname = "%s(%s)" % (name, env)
    print(fullname)
    print(env)
    if isinstance(cmdline, list):
        cmdline = " ".join(cmdline)
    support_list = ("$LISTOPT" in cmdline)
    if "$LISTOPT" not in cmdline:
        raise AssertionError("loadlist test %s does not support not --list" % name)
    if "$LOADLIST" not in cmdline:
        raise AssertionError("loadlist test %s does not support --load-list" % name)
    print(("%s | %s" %
           (cmdline.replace("$LOADLIST", ""),
            add_prefix(name, env, support_list))).replace("$LISTOPT", "--list "))
    print(cmdline.replace("$LISTOPT", "") + " 2>&1 " + " | " + add_prefix(name, env, False))


def skiptestsuite(name, reason):
    """Indicate that a testsuite was skipped.

    :param name: Test suite name
    :param reason: Reason the test suite was skipped
    """
    # FIXME: Report this using subunit, but re-adjust the testsuite count somehow
    print("skipping %s (%s)" % (name, reason), file=sys.stderr)


def planperltestsuite(name, path):
    """Run a perl test suite.

    :param name: Name of the test suite
    :param path: Path to the test runner
    """
    if has_perl_test_more:
        plantestsuite(name, "none", "%s %s | %s" % (" ".join(perl), path, tap2subunit))
    else:
        skiptestsuite(name, "Test::More not available")


def planpythontestsuite(env, module, name=None, extra_path=[], environ={}, extra_args=[]):
    environ = dict(environ)
    py_path = list(extra_path)
    if py_path is not None:
        environ["PYTHONPATH"] = ":".join(["$PYTHONPATH"] + py_path)
    args = ["%s=%s" % item for item in environ.items()]
    args += [python, "-m", "samba.subunit.run", "$LISTOPT", "$LOADLIST", module]
    args += extra_args
    if name is None:
        name = module

    plantestsuite_loadlist(name, env, args)


def get_env_torture_options():
    ret = []
    if not os.getenv("SELFTEST_VERBOSE"):
        ret.append("--option=torture:progress=no")
    if os.getenv("SELFTEST_QUICK"):
        ret.append("--option=torture:quick=yes")
    return ret


samba4srcdir = source4dir()
samba3srcdir = source3dir()
bbdir = os.path.join(srcdir(), "testprogs/blackbox")
configuration = "--configfile=$SMB_CONF_PATH"

smbtorture4 = binpath("smbtorture")
smbtorture4_testsuite_list = subprocess.Popen(
    [smbtorture4, "--list-suites"],
    stdout=subprocess.PIPE,
    stderr=subprocess.PIPE).communicate("")[0].decode('utf8').splitlines()

smbtorture4_options = [
    configuration,
    "--option=\'fss:sequence timeout=1\'",
    "--maximum-runtime=$SELFTEST_MAXTIME",
    "--basedir=$SELFTEST_TMPDIR",
    "--format=subunit"
] + get_env_torture_options()


def plansmbtorture4testsuite(name, env, options, target, modname=None, environ={}):
    if modname is None:
        modname = "samba4.%s" % name
    if isinstance(options, list):
        options = " ".join(options)
    options = " ".join(smbtorture4_options + ["--target=%s" % target]) + " " + options
    cmdline = ""
    if environ:
        environ = dict(environ)
        cmdline = ["%s=%s" % item for item in environ.items()]
    cmdline += " %s $LISTOPT $LOADLIST %s %s" % (valgrindify(smbtorture4), options, name)
    plantestsuite_loadlist(modname, env, cmdline)


def smbtorture4_testsuites(prefix):
    return list(filter(lambda x: x.startswith(prefix), smbtorture4_testsuite_list))


smbclient3 = binpath('smbclient')
smbtorture3 = binpath('smbtorture3')
ntlm_auth3 = binpath('ntlm_auth')
net = binpath('net')
scriptdir = os.path.join(srcdir(), "script/tests")

wbinfo = binpath('wbinfo')
dbwrap_tool = binpath('dbwrap_tool')
vfstest = binpath('vfstest')
smbcquotas = binpath('smbcquotas')
smbget = binpath('smbget')
rpcclient = binpath('rpcclient')
smbcacls = binpath('smbcacls')
smbcontrol = binpath('smbcontrol')
smbstatus = binpath('smbstatus')