"""Test of g.remove module"""

# TODO: rmapcalc probably fatals, replace or add raise on error?
from grass.script.raster import mapcalc as rmapcalc

from grass.gunittest.case import TestCase
from grass.gunittest.main import test
from grass.gunittest.gutils import get_current_mapset
from grass.gunittest.gmodules import SimpleModule

# when used user1 must be replaced by current mapset
REMOVE_RASTERS = """raster/test_map_0@user1
raster/test_map_1@user1
raster/test_map_2@user1
raster/test_map_3@user1
raster/test_map_4@user1
raster/test_map_5@user1
raster/test_map_6@user1
raster/test_map_7@user1
raster/test_map_8@user1
raster/test_map_9@user1
raster/test_two@user1
"""

REMOVING_RASTERS_LOG = """Removing raster <test_map_0>
Removing raster <test_map_1>
Removing raster <test_map_2>
Removing raster <test_map_3>
Removing raster <test_map_4>
Removing raster <test_map_5>
Removing raster <test_map_6>
Removing raster <test_map_7>
Removing raster <test_map_8>
Removing raster <test_map_9>
Removing raster <test_two>
"""


class GMRemoveTest(TestCase):
    """Test removing with g.remove"""

    @classmethod
    def setUpClass(cls):
        """Set up small region for fast map creation."""
        cls.use_temp_region()
        cls.runModule("g.region", s=0, n=5, w=0, e=5, res=1)

    @classmethod
    def tearDownClass(cls):
        """Remove temporary region"""
        cls.del_temp_region()

    def test_remove_procedure(self):
        """Test that maps are removed only with -f"""
        for i in range(0, 10):
            rmapcalc("test_map_%i = 100" % i)
        rmapcalc("test_two = 2")

        module = SimpleModule("g.remove", type="raster", pattern="test_map_*,*two")
        self.assertModule(module)
        self.assertMultiLineEqual(
            module.outputs.stdout, REMOVE_RASTERS.replace("user1", get_current_mapset())
        )

        module = SimpleModule(
            "g.remove", type="raster", pattern="test_map_*,*two", flags="f"
        )
        self.assertModule(module)
        self.assertMultiLineEqual(module.outputs.stdout, "")
        self.assertMultiLineEqual(module.outputs.stderr, REMOVING_RASTERS_LOG)

    def test_remove_procedure_exclude(self):
        """Test that exclude does not list excluded maps"""
        rmapcalc("test_apples = 100")
        rmapcalc("test_oranges = 200")
        rmapcalc("test_apples_big = 300")
        rmapcalc("test_apples_small = 300")
        module = SimpleModule(
            "g.remove",
            type="raster",
            pattern="test_{apples,oranges}*",
            exclude="*_small",
        )
        self.assertModule(module)
        self.assertMultiLineEqual(
            module.outputs.stdout,
            "raster/test_apples@user1\n"
            "raster/test_apples_big@user1\n"
            "raster/test_oranges@user1\n".replace("user1", get_current_mapset()),
        )
        module = SimpleModule(
            "g.remove",
            type="raster",
            pattern="test_{apples,oranges}{_small,_big,*}",
            flags="f",
        )
        self.assertModule(module)
        self.assertMultiLineEqual(module.outputs.stdout, "")
        self.assertRegexpMatches(
            module.outputs.stderr, "(.*<.+>[^\n]*\n){4}", msg="4 maps should be removed"
        )


class GMRemoveWrongInputTest(TestCase):
    """Test wrong input of parameters for g.remove module"""

    def test_re_flags(self):
        """Test that -r and -e flags are exclusive"""
        module = SimpleModule(
            "g.remove", flags="re", type="raster", pattern="xxxyyyzzz"
        )
        self.assertModuleFail(module)
        stderr = module.outputs.stderr
        self.assertIn("-r", stderr)
        self.assertIn("-e", stderr)


if __name__ == "__main__":
    test()