# test generated python code from pidl
# Copyright (C) Andrew Tridgell August 2010
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
import sys

sys.path.insert(0, "bin/python")

import samba
import samba.tests
from samba.dcerpc import drsuapi
import talloc

talloc.enable_null_tracking()


class RpcTests(object):
    """test type behaviour of pidl generated python RPC code"""

    def check_blocks(self, object, num_expected):
        """check that the number of allocated blocks is correct"""
        nblocks = talloc.total_blocks(object)
        if object is None:
            nblocks -= self.initial_blocks
        leaked_blocks = (nblocks - num_expected)
        if leaked_blocks != 0:
            print("Leaked %d blocks" % leaked_blocks)

    def check_type(self, interface, typename, type):
        print("Checking type %s" % typename)
        v = type()
        for n in dir(v):
            if n[0] == '_':
                continue
            try:
                value = getattr(v, n)
            except TypeError as errstr:
                if str(errstr) == "unknown union level":
                    print("ERROR: Unknown union level in %s.%s" % (typename, n))
                    self.errcount += 1
                    continue
                print(str(errstr)[1:21])
                if str(errstr)[0:21] == "Can not convert C Type":
                    print("ERROR: Unknown C type for %s.%s" % (typename, n))
                    self.errcount += 1
                    continue
                else:
                    print("ERROR: Failed to instantiate %s.%s" % (typename, n))
                    self.errcount += 1
                    continue
            except Exception:
                print("ERROR: Failed to instantiate %s.%s" % (typename, n))
                self.errcount += 1
                continue

            # now try setting the value back
            try:
                print("Setting %s.%s" % (typename, n))
                setattr(v, n, value)
            except Exception as e:
                if isinstance(e, AttributeError) and str(e).endswith("is read-only"):
                    # readonly, ignore
                    continue
                else:
                    print("ERROR: Failed to set %s.%s: %r: %s" % (typename, n, e.__class__, e))
                    self.errcount += 1
                    continue

            # and try a comparison
            try:
                if value != getattr(v, n):
                    print("ERROR: Comparison failed for %s.%s: %r != %r" % (typename, n, value, getattr(v, n)))
                    continue
            except Exception as e:
                print("ERROR: compare exception for %s.%s: %r: %s" % (typename, n, e.__class__, e))
                continue

    def check_interface(self, interface, iname):
        errcount = self.errcount
        for n in dir(interface):
            if n[0] == '_' or n == iname:
                # skip the special ones
                continue
            value = getattr(interface, n)
            if isinstance(value, str):
                # print "%s=\"%s\"" % (n, value)
                pass
            elif isinstance(value, int):
                # print "%s=%d" % (n, value)
                pass
            elif isinstance(value, type):
                try:
                    initial_blocks = talloc.total_blocks(None)
                    self.check_type(interface, n, value)
                    self.check_blocks(None, initial_blocks)
                except Exception as e:
                    print("ERROR: Failed to check_type %s.%s: %r: %s" % (iname, n, e.__class__, e))
                    self.errcount += 1
            elif callable(value):
                pass  # Method
            else:
                print("UNKNOWN: %s=%s" % (n, value))
        if self.errcount - errcount != 0:
            print("Found %d errors in %s" % (self.errcount - errcount, iname))

    def check_all_interfaces(self):
        for iname in dir(samba.dcerpc):
            if iname[0] == '_':
                continue
            if iname == 'ClientConnection' or iname == 'base':
                continue
            print("Checking interface %s" % iname)
            iface = getattr(samba.dcerpc, iname)
            initial_blocks = talloc.total_blocks(None)
            self.check_interface(iface, iname)
            self.check_blocks(None, initial_blocks)

    def run(self):
        self.initial_blocks = talloc.total_blocks(None)
        self.errcount = 0
        self.check_all_interfaces()
        return self.errcount


tests = RpcTests()
errcount = tests.run()
if errcount == 0:
    sys.exit(0)
else:
    print("%d failures" % errcount)
    sys.exit(1)
