import os
import shutil
import stat
import sys
import tempfile

import pytest

import salt.utils.files
import salt.utils.find
from tests.support.runtests import RUNTIME_VARS
from tests.support.unit import TestCase


class TestFind(TestCase):
    def test_parse_interval(self):
        self.assertRaises(ValueError, salt.utils.find._parse_interval, "w")
        self.assertRaises(ValueError, salt.utils.find._parse_interval, "1")
        self.assertRaises(ValueError, salt.utils.find._parse_interval, "1s1w")
        self.assertRaises(ValueError, salt.utils.find._parse_interval, "1s1s")

        result, resolution, modifier = salt.utils.find._parse_interval("")
        self.assertEqual(result, 0)
        self.assertIs(resolution, None)
        self.assertEqual(modifier, "")

        result, resolution, modifier = salt.utils.find._parse_interval("1s")
        self.assertEqual(result, 1.0)
        self.assertEqual(resolution, 1)
        self.assertEqual(modifier, "")

        result, resolution, modifier = salt.utils.find._parse_interval("1m")
        self.assertEqual(result, 60.0)
        self.assertEqual(resolution, 60)
        self.assertEqual(modifier, "")

        result, resolution, modifier = salt.utils.find._parse_interval("1h")
        self.assertEqual(result, 3600.0)
        self.assertEqual(resolution, 3600)
        self.assertEqual(modifier, "")

        result, resolution, modifier = salt.utils.find._parse_interval("1d")
        self.assertEqual(result, 86400.0)
        self.assertEqual(resolution, 86400)
        self.assertEqual(modifier, "")

        result, resolution, modifier = salt.utils.find._parse_interval("1w")
        self.assertEqual(result, 604800.0)
        self.assertEqual(resolution, 604800)
        self.assertEqual(modifier, "")

        result, resolution, modifier = salt.utils.find._parse_interval("1w3d6h")
        self.assertEqual(result, 885600.0)
        self.assertEqual(resolution, 3600)
        self.assertEqual(modifier, "")

        result, resolution, modifier = salt.utils.find._parse_interval("1m1s")
        self.assertEqual(result, 61.0)
        self.assertEqual(resolution, 1)
        self.assertEqual(modifier, "")

        result, resolution, modifier = salt.utils.find._parse_interval("1m2s")
        self.assertEqual(result, 62.0)
        self.assertEqual(resolution, 1)
        self.assertEqual(modifier, "")

        result, resolution, modifier = salt.utils.find._parse_interval("+1d")
        self.assertEqual(result, 86400.0)
        self.assertEqual(resolution, 86400)
        self.assertEqual(modifier, "+")

        result, resolution, modifier = salt.utils.find._parse_interval("-1d")
        self.assertEqual(result, 86400.0)
        self.assertEqual(resolution, 86400)
        self.assertEqual(modifier, "-")

    def test_parse_size(self):
        self.assertRaises(ValueError, salt.utils.find._parse_size, "")
        self.assertRaises(ValueError, salt.utils.find._parse_size, "1s1s")
        min_size, max_size = salt.utils.find._parse_size("1")
        self.assertEqual(min_size, 1)
        self.assertEqual(max_size, 1)

        min_size, max_size = salt.utils.find._parse_size("1b")
        self.assertEqual(min_size, 1)
        self.assertEqual(max_size, 1)

        min_size, max_size = salt.utils.find._parse_size("1k")
        self.assertEqual(min_size, 1024)
        self.assertEqual(max_size, 2047)

        min_size, max_size = salt.utils.find._parse_size("1m")
        self.assertEqual(min_size, 1048576)
        self.assertEqual(max_size, 2097151)

        min_size, max_size = salt.utils.find._parse_size("1g")
        self.assertEqual(min_size, 1073741824)
        self.assertEqual(max_size, 2147483647)

        min_size, max_size = salt.utils.find._parse_size("1t")
        self.assertEqual(min_size, 1099511627776)
        self.assertEqual(max_size, 2199023255551)

        min_size, max_size = salt.utils.find._parse_size("0m")
        self.assertEqual(min_size, 0)
        self.assertEqual(max_size, 1048575)

        min_size, max_size = salt.utils.find._parse_size("-1m")
        self.assertEqual(min_size, 0)
        self.assertEqual(max_size, 1048576)

        min_size, max_size = salt.utils.find._parse_size("+1m")
        self.assertEqual(min_size, 1048576)
        self.assertEqual(max_size, sys.maxsize)

        min_size, max_size = salt.utils.find._parse_size("+1M")
        self.assertEqual(min_size, 1048576)
        self.assertEqual(max_size, sys.maxsize)

    def test_option_requires(self):
        option = salt.utils.find.Option()
        self.assertEqual(option.requires(), salt.utils.find._REQUIRES_PATH)

    def test_name_option_match(self):
        option = salt.utils.find.NameOption("name", "*.txt")
        self.assertIs(option.match("", "", ""), None)
        self.assertIs(option.match("", "hello.txt", "").group(), "hello.txt")
        self.assertIs(option.match("", "HELLO.TXT", ""), None)

    def test_iname_option_match(self):
        option = salt.utils.find.InameOption("name", "*.txt")
        self.assertIs(option.match("", "", ""), None)
        self.assertIs(option.match("", "hello.txt", "").group(), "hello.txt")
        self.assertIs(option.match("", "HELLO.TXT", "").group(), "HELLO.TXT")

    def test_regex_option_match(self):
        self.assertRaises(ValueError, salt.utils.find.RegexOption, "name", "(.*}")

        option = salt.utils.find.RegexOption("name", r".*\.txt")
        self.assertIs(option.match("", "", ""), None)
        self.assertIs(option.match("", "hello.txt", "").group(), "hello.txt")
        self.assertIs(option.match("", "HELLO.TXT", ""), None)

    def test_iregex_option_match(self):
        self.assertRaises(ValueError, salt.utils.find.IregexOption, "name", "(.*}")

        option = salt.utils.find.IregexOption("name", r".*\.txt")
        self.assertIs(option.match("", "", ""), None)
        self.assertIs(option.match("", "hello.txt", "").group(), "hello.txt")
        self.assertIs(option.match("", "HELLO.TXT", "").group(), "HELLO.TXT")

    def test_type_option_requires(self):
        self.assertRaises(ValueError, salt.utils.find.TypeOption, "type", "w")

        option = salt.utils.find.TypeOption("type", "d")
        self.assertEqual(option.requires(), salt.utils.find._REQUIRES_STAT)

    def test_type_option_match(self):
        option = salt.utils.find.TypeOption("type", "b")
        self.assertEqual(option.match("", "", [stat.S_IFREG]), False)

        option = salt.utils.find.TypeOption("type", "c")
        self.assertEqual(option.match("", "", [stat.S_IFREG]), False)

        option = salt.utils.find.TypeOption("type", "d")
        self.assertEqual(option.match("", "", [stat.S_IFREG]), False)

        option = salt.utils.find.TypeOption("type", "f")
        self.assertEqual(option.match("", "", [stat.S_IFREG]), True)

        option = salt.utils.find.TypeOption("type", "l")
        self.assertEqual(option.match("", "", [stat.S_IFREG]), False)

        option = salt.utils.find.TypeOption("type", "p")
        self.assertEqual(option.match("", "", [stat.S_IFREG]), False)

        option = salt.utils.find.TypeOption("type", "s")
        self.assertEqual(option.match("", "", [stat.S_IFREG]), False)

        option = salt.utils.find.TypeOption("type", "b")
        self.assertEqual(option.match("", "", [stat.S_IFBLK]), True)

        option = salt.utils.find.TypeOption("type", "c")
        self.assertEqual(option.match("", "", [stat.S_IFCHR]), True)

        option = salt.utils.find.TypeOption("type", "d")
        self.assertEqual(option.match("", "", [stat.S_IFDIR]), True)

        option = salt.utils.find.TypeOption("type", "l")
        self.assertEqual(option.match("", "", [stat.S_IFLNK]), True)

        option = salt.utils.find.TypeOption("type", "p")
        self.assertEqual(option.match("", "", [stat.S_IFIFO]), True)

        option = salt.utils.find.TypeOption("type", "s")
        self.assertEqual(option.match("", "", [stat.S_IFSOCK]), True)

    @pytest.mark.skip_on_windows(reason="pwd not available on Windows")
    def test_owner_option_requires(self):
        self.assertRaises(ValueError, salt.utils.find.OwnerOption, "owner", "notexist")

        option = salt.utils.find.OwnerOption("owner", "root")
        self.assertEqual(option.requires(), salt.utils.find._REQUIRES_STAT)

    @pytest.mark.skip_on_windows(reason="pwd not available on Windows")
    def test_owner_option_match(self):
        option = salt.utils.find.OwnerOption("owner", "root")
        self.assertEqual(option.match("", "", [0] * 5), True)

        option = salt.utils.find.OwnerOption("owner", "500")
        self.assertEqual(option.match("", "", [500] * 5), True)

    @pytest.mark.skip_on_windows(reason="grp not available on Windows")
    def test_group_option_requires(self):
        self.assertRaises(ValueError, salt.utils.find.GroupOption, "group", "notexist")

        if sys.platform.startswith(("darwin", "freebsd", "openbsd")):
            group_name = "wheel"
        else:
            group_name = "root"
        option = salt.utils.find.GroupOption("group", group_name)
        self.assertEqual(option.requires(), salt.utils.find._REQUIRES_STAT)

    @pytest.mark.skip_on_windows(reason="grp not available on Windows")
    def test_group_option_match(self):
        if sys.platform.startswith(("darwin", "freebsd", "openbsd")):
            group_name = "wheel"
        else:
            group_name = "root"
        option = salt.utils.find.GroupOption("group", group_name)
        self.assertEqual(option.match("", "", [0] * 6), True)

        option = salt.utils.find.GroupOption("group", "500")
        self.assertEqual(option.match("", "", [500] * 6), True)

    def test_size_option_requires(self):
        self.assertRaises(ValueError, salt.utils.find.SizeOption, "size", "1s1s")

        option = salt.utils.find.SizeOption("size", "+1G")
        self.assertEqual(option.requires(), salt.utils.find._REQUIRES_STAT)

    def test_size_option_match(self):
        option = salt.utils.find.SizeOption("size", "+1k")
        self.assertEqual(option.match("", "", [10000] * 7), True)

        option = salt.utils.find.SizeOption("size", "+1G")
        self.assertEqual(option.match("", "", [10000] * 7), False)

    def test_mtime_option_requires(self):
        self.assertRaises(ValueError, salt.utils.find.MtimeOption, "mtime", "4g")

        option = salt.utils.find.MtimeOption("mtime", "1d")
        self.assertEqual(option.requires(), salt.utils.find._REQUIRES_STAT)

    def test_mtime_option_match(self):
        option = salt.utils.find.MtimeOption("mtime", "-1w")
        self.assertEqual(option.match("", "", [1] * 9), False)

        option = salt.utils.find.MtimeOption("mtime", "-1s")
        self.assertEqual(option.match("", "", [10**10] * 9), True)


class TestGrepOption(TestCase):
    def setUp(self):
        super().setUp()
        self.tmpdir = tempfile.mkdtemp(dir=RUNTIME_VARS.TMP)

    def tearDown(self):
        shutil.rmtree(self.tmpdir)
        super().tearDown()

    def test_grep_option_requires(self):
        self.assertRaises(ValueError, salt.utils.find.GrepOption, "grep", "(foo)|(bar}")

        option = salt.utils.find.GrepOption("grep", "(foo)|(bar)")
        find = salt.utils.find
        self.assertEqual(
            option.requires(), (find._REQUIRES_CONTENTS | find._REQUIRES_STAT)
        )

    def test_grep_option_match_regular_file(self):
        hello_file = os.path.join(self.tmpdir, "hello.txt")
        with salt.utils.files.fopen(hello_file, "w") as fp_:
            fp_.write(salt.utils.stringutils.to_str("foo"))
        option = salt.utils.find.GrepOption("grep", "foo")
        self.assertEqual(
            option.match(self.tmpdir, "hello.txt", os.stat(hello_file)), hello_file
        )

        option = salt.utils.find.GrepOption("grep", "bar")
        self.assertEqual(
            option.match(self.tmpdir, "hello.txt", os.stat(hello_file)), None
        )

    @pytest.mark.skip_on_windows(reason="No /dev/null on Windows")
    def test_grep_option_match_dev_null(self):
        option = salt.utils.find.GrepOption("grep", "foo")
        self.assertEqual(option.match("dev", "null", os.stat("/dev/null")), None)


class TestPrintOption(TestCase):
    def setUp(self):
        super().setUp()
        self.tmpdir = tempfile.mkdtemp(dir=RUNTIME_VARS.TMP)

    def tearDown(self):
        shutil.rmtree(self.tmpdir)
        super().tearDown()

    def test_print_option_defaults(self):
        option = salt.utils.find.PrintOption("print", "")
        self.assertEqual(option.need_stat, False)
        self.assertEqual(option.print_title, False)
        self.assertEqual(option.fmt, ["path"])

    def test_print_option_requires(self):
        option = salt.utils.find.PrintOption("print", "")
        self.assertEqual(option.requires(), salt.utils.find._REQUIRES_PATH)

        option = salt.utils.find.PrintOption("print", "name")
        self.assertEqual(option.requires(), salt.utils.find._REQUIRES_PATH)

        option = salt.utils.find.PrintOption("print", "path")
        self.assertEqual(option.requires(), salt.utils.find._REQUIRES_PATH)

        option = salt.utils.find.PrintOption("print", "name,path")
        self.assertEqual(option.requires(), salt.utils.find._REQUIRES_PATH)

        option = salt.utils.find.PrintOption("print", "user")
        self.assertEqual(option.requires(), salt.utils.find._REQUIRES_STAT)

        option = salt.utils.find.PrintOption("print", "path user")
        self.assertEqual(option.requires(), salt.utils.find._REQUIRES_STAT)

    def test_print_option_execute(self):
        hello_file = os.path.join(self.tmpdir, "hello.txt")
        with salt.utils.files.fopen(hello_file, "w") as fp_:
            fp_.write(salt.utils.stringutils.to_str("foo"))

        option = salt.utils.find.PrintOption("print", "")
        self.assertEqual(option.execute("", [0] * 9), "")

        option = salt.utils.find.PrintOption("print", "path")
        self.assertEqual(option.execute("test_name", [0] * 9), "test_name")

        option = salt.utils.find.PrintOption("print", "name")
        self.assertEqual(option.execute("test_name", [0] * 9), "test_name")

        option = salt.utils.find.PrintOption("print", "size")
        self.assertEqual(option.execute(hello_file, os.stat(hello_file)), 3)

        option = salt.utils.find.PrintOption("print", "type")
        self.assertEqual(option.execute(hello_file, os.stat(hello_file)), "f")

        option = salt.utils.find.PrintOption("print", "mode")
        self.assertEqual(option.execute(hello_file, range(10)), 0)

        option = salt.utils.find.PrintOption("print", "mtime")
        self.assertEqual(option.execute(hello_file, range(10)), 8)

        option = salt.utils.find.PrintOption("print", "md5")
        self.assertEqual(
            option.execute(hello_file, os.stat(hello_file)),
            "acbd18db4cc2f85cedef654fccc4a4d8",
        )

        option = salt.utils.find.PrintOption("print", "path name")
        self.assertEqual(
            option.execute("test_name", [0] * 9), ["test_name", "test_name"]
        )

        option = salt.utils.find.PrintOption("print", "size name")
        self.assertEqual(option.execute("test_name", [0] * 9), [0, "test_name"])

    @pytest.mark.skip_on_windows(reason="pwd not available on Windows")
    def test_print_user(self):
        option = salt.utils.find.PrintOption("print", "user")
        self.assertEqual(option.execute("", [0] * 10), "root")

        option = salt.utils.find.PrintOption("print", "user")
        self.assertEqual(option.execute("", [2**31] * 10), 2**31)

    @pytest.mark.skip_on_windows(reason="grp not available on Windows")
    def test_print_group(self):
        option = salt.utils.find.PrintOption("print", "group")
        if sys.platform.startswith(("darwin", "freebsd", "openbsd")):
            group_name = "wheel"
        else:
            group_name = "root"
        self.assertEqual(option.execute("", [0] * 10), group_name)

        # This seems to be not working in Ubuntu 12.04 32 bit
        # option = salt.utils.find.PrintOption('print', 'group')
        # self.assertEqual(option.execute('', [2 ** 31] * 10), 2 ** 31)

    @pytest.mark.skip_on_windows(reason="no /dev/null on windows")
    def test_print_md5(self):
        option = salt.utils.find.PrintOption("print", "md5")
        self.assertEqual(option.execute("/dev/null", os.stat("/dev/null")), "")


class TestFinder(TestCase):
    def setUp(self):
        super().setUp()
        self.tmpdir = tempfile.mkdtemp(dir=RUNTIME_VARS.TMP)

    def tearDown(self):
        shutil.rmtree(self.tmpdir)
        super().tearDown()

    @pytest.mark.skip_on_windows(reason="No /dev/null on Windows")
    def test_init(self):
        finder = salt.utils.find.Finder({})
        self.assertEqual(str(finder.actions[0].__class__)[-13:-2], "PrintOption")
        self.assertEqual(finder.criteria, [])

        finder = salt.utils.find.Finder({"_": None})
        self.assertEqual(str(finder.actions[0].__class__)[-13:-2], "PrintOption")
        self.assertEqual(finder.criteria, [])

        self.assertRaises(ValueError, salt.utils.find.Finder, {"": None})
        self.assertRaises(ValueError, salt.utils.find.Finder, {"name": None})
        self.assertRaises(ValueError, salt.utils.find.Finder, {"nonexist": "somevalue"})

        finder = salt.utils.find.Finder({"name": "test_name"})
        self.assertEqual(str(finder.actions[0].__class__)[-13:-2], "PrintOption")
        self.assertEqual(str(finder.criteria[0].__class__)[-12:-2], "NameOption")

        finder = salt.utils.find.Finder({"iname": "test_name"})
        self.assertEqual(str(finder.actions[0].__class__)[-13:-2], "PrintOption")
        self.assertEqual(str(finder.criteria[0].__class__)[-13:-2], "InameOption")

        finder = salt.utils.find.Finder({"regex": r".*\.txt"})
        self.assertEqual(str(finder.actions[0].__class__)[-13:-2], "PrintOption")
        self.assertEqual(str(finder.criteria[0].__class__)[-13:-2], "RegexOption")

        finder = salt.utils.find.Finder({"iregex": r".*\.txt"})
        self.assertEqual(str(finder.actions[0].__class__)[-13:-2], "PrintOption")
        self.assertEqual(str(finder.criteria[0].__class__)[-14:-2], "IregexOption")

        finder = salt.utils.find.Finder({"type": "d"})
        self.assertEqual(str(finder.actions[0].__class__)[-13:-2], "PrintOption")
        self.assertEqual(str(finder.criteria[0].__class__)[-12:-2], "TypeOption")

        finder = salt.utils.find.Finder({"owner": "root"})
        self.assertEqual(str(finder.actions[0].__class__)[-13:-2], "PrintOption")
        self.assertEqual(str(finder.criteria[0].__class__)[-13:-2], "OwnerOption")

        if sys.platform.startswith(("darwin", "freebsd", "openbsd")):
            group_name = "wheel"
        else:
            group_name = "root"
        finder = salt.utils.find.Finder({"group": group_name})
        self.assertEqual(str(finder.actions[0].__class__)[-13:-2], "PrintOption")
        self.assertEqual(str(finder.criteria[0].__class__)[-13:-2], "GroupOption")

        finder = salt.utils.find.Finder({"size": "+1G"})
        self.assertEqual(str(finder.actions[0].__class__)[-13:-2], "PrintOption")
        self.assertEqual(str(finder.criteria[0].__class__)[-12:-2], "SizeOption")

        finder = salt.utils.find.Finder({"mtime": "1d"})
        self.assertEqual(str(finder.actions[0].__class__)[-13:-2], "PrintOption")
        self.assertEqual(str(finder.criteria[0].__class__)[-13:-2], "MtimeOption")

        finder = salt.utils.find.Finder({"grep": "foo"})
        self.assertEqual(str(finder.actions[0].__class__)[-13:-2], "PrintOption")
        self.assertEqual(str(finder.criteria[0].__class__)[-12:-2], "GrepOption")

        finder = salt.utils.find.Finder({"print": "name"})
        self.assertEqual(str(finder.actions[0].__class__)[-13:-2], "PrintOption")
        self.assertEqual(finder.criteria, [])

    def test_find(self):
        hello_file = os.path.join(self.tmpdir, "hello.txt")
        with salt.utils.files.fopen(hello_file, "w") as fp_:
            fp_.write(salt.utils.stringutils.to_str("foo"))

        finder = salt.utils.find.Finder({})
        self.assertEqual(list(finder.find(self.tmpdir)), [self.tmpdir, hello_file])

        finder = salt.utils.find.Finder({"mindepth": 1})
        self.assertEqual(list(finder.find(self.tmpdir)), [hello_file])

        finder = salt.utils.find.Finder({"maxdepth": 0})
        self.assertEqual(list(finder.find(self.tmpdir)), [self.tmpdir])

        finder = salt.utils.find.Finder({"name": "hello.txt"})
        self.assertEqual(list(finder.find(self.tmpdir)), [hello_file])

        finder = salt.utils.find.Finder({"type": "f", "print": "path"})
        self.assertEqual(list(finder.find(self.tmpdir)), [hello_file])

        finder = salt.utils.find.Finder({"size": "+1G", "print": "path"})
        self.assertEqual(list(finder.find(self.tmpdir)), [])

        finder = salt.utils.find.Finder({"name": "hello.txt", "print": "path name"})
        self.assertEqual(list(finder.find(self.tmpdir)), [[hello_file, "hello.txt"]])

        finder = salt.utils.find.Finder({"name": "test_name"})
        self.assertEqual(list(finder.find("")), [])
