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"""Piglit integration for Khronos CTS tests.

By default this will run GL30, GL31, GL32, GL33, GL40, GL41, GL42, GL43, GL44
and GL45 test cases. Those desiring to run only a subset of them should consider
using the -t or -x options to include or exclude tests.

For example:
./piglit run cts_gl -c foo -t GL30- would run only GL30 tests

This integration requires some configuration in piglit.conf, or the use of
environment variables.

In piglit.conf one should set the following:
[cts_gl]:bin -- Path to the glcts binary
[cts_gl]:extra_args -- any extra arguments to be passed to cts (optional)

Alternatively (or in addition, since environment variables have precedence),
one could set:
PIGLIT_CTS_GL_BIN -- environment equivalent of [cts_gl]:bin
PIGLIT_CTS_GL_EXTRA_ARGS -- environment equivalent of [cts_gl]:extra_args

"""

from __future__ import (
    absolute_import, division, print_function, unicode_literals
)
import itertools

from framework.test import deqp

__all__ = ['profile']

_CTS_BIN = deqp.get_option('PIGLIT_CTS_GL_BIN', ('cts_gl', 'bin'),
                           required=True)

_EXTRA_ARGS = deqp.get_option('PIGLIT_CTS_GL_EXTRA_ARGS', ('cts_gl', 'extra_args'),
                              default='').split()


class DEQPCTSTest(deqp.DEQPBaseTest):
    deqp_bin = _CTS_BIN

    @property
    def extra_args(self):
        return super(DEQPCTSTest, self).extra_args + \
            [x for x in _EXTRA_ARGS if not x.startswith('--deqp-case')]

# Add all of the suites by default, users can use filters to remove them.
profile = deqp.make_profile(  # pylint: disable=invalid-name
    itertools.chain(
        deqp.iter_deqp_test_cases(
            deqp.gen_caselist_txt(_CTS_BIN, 'GL30-CTS-cases.txt', _EXTRA_ARGS)),
        deqp.iter_deqp_test_cases(
            deqp.gen_caselist_txt(_CTS_BIN, 'GL31-CTS-cases.txt', _EXTRA_ARGS)),
        deqp.iter_deqp_test_cases(
            deqp.gen_caselist_txt(_CTS_BIN, 'GL32-CTS-cases.txt', _EXTRA_ARGS)),
        deqp.iter_deqp_test_cases(
            deqp.gen_caselist_txt(_CTS_BIN, 'GL33-CTS-cases.txt', _EXTRA_ARGS)),
        deqp.iter_deqp_test_cases(
            deqp.gen_caselist_txt(_CTS_BIN, 'GL40-CTS-cases.txt', _EXTRA_ARGS)),
        deqp.iter_deqp_test_cases(
            deqp.gen_caselist_txt(_CTS_BIN, 'GL41-CTS-cases.txt', _EXTRA_ARGS)),
        deqp.iter_deqp_test_cases(
            deqp.gen_caselist_txt(_CTS_BIN, 'GL42-CTS-cases.txt', _EXTRA_ARGS)),
        deqp.iter_deqp_test_cases(
            deqp.gen_caselist_txt(_CTS_BIN, 'GL43-CTS-cases.txt', _EXTRA_ARGS)),
        deqp.iter_deqp_test_cases(
            deqp.gen_caselist_txt(_CTS_BIN, 'GL44-CTS-cases.txt', _EXTRA_ARGS)),
        deqp.iter_deqp_test_cases(
            deqp.gen_caselist_txt(_CTS_BIN, 'GL45-CTS-cases.txt', _EXTRA_ARGS)),
    ),
    DEQPCTSTest)