# ==========================================================================
#
#   Copyright NumFOCUS
#
#   Licensed under the Apache License, Version 2.0 (the "License");
#   you may not use this file except in compliance with the License.
#   You may obtain a copy of the License at
#
#          https://www.apache.org/licenses/LICENSE-2.0.txt
#
#   Unless required by applicable law or agreed to in writing, software
#   distributed under the License is distributed on an "AS IS" BASIS,
#   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#   See the License for the specific language governing permissions and
#   limitations under the License.
#
# ==========================================================================*/

import sys
import commands
import tempfile
from optparse import OptionParser

parser = OptionParser(usage="usage: %prog")
parser.add_option(
    "--start-from", dest="startFrom", default=None, metavar="CLASS", help=""
)
parser.add_option(
    "-v", "--verbose", action="store_true", dest="verbose", default=False, help=""
)
parser.add_option(
    "-k", "--keep", action="store_true", dest="keep", default=False, help=""
)
(options, args) = parser.parse_args()

if options.keep:
    mode = "a"
else:
    mode = "w"
segfaultFile = file(args[0], mode)

logs = tempfile.NamedTemporaryFile()

lastClass = options.startFrom
ret = 1
while ret != 0:
    command = (
        "python returnedTypeCoverage.py -v5 --exclude "
        + sys.argv[1]
        + " --log-file '"
        + logs.name
        + "'"
    )
    if lastClass:
        command += " --start-from " + lastClass
    if options.verbose:
        print(command)
    (ret, output) = commands.getstatusoutput(command)
    if ret != 0:
        # find last args (the ones which caused the segfault)
        faultyArgs = None
        logs.file.seek(0)
        for l in reversed(logs.file.readlines()):
            l = l.strip()
            if faultyArgs is None and l.startswith("("):
                faultyArgs = l
            if faultyArgs is not None:
                # find the last class
                if len(l) != 0 and l[0].isupper():
                    lastClass = l
                    break
        print(repr(faultyArgs))
        segfaultFile.write(faultyArgs + "\n")
        segfaultFile.flush()
