# -*- coding: utf-8 -*-
from __future__ import unicode_literals
from typing import cast


from .. import _url
from .common import HyperlinkTestCase
from .._url import register_scheme, URL, DecodedURL


class TestSchemeRegistration(HyperlinkTestCase):
    def setUp(self):
        # type: () -> None
        self._orig_scheme_port_map = dict(_url.SCHEME_PORT_MAP)
        self._orig_no_netloc_schemes = set(_url.NO_NETLOC_SCHEMES)

    def tearDown(self):
        # type: () -> None
        _url.SCHEME_PORT_MAP = self._orig_scheme_port_map
        _url.NO_NETLOC_SCHEMES = self._orig_no_netloc_schemes

    def test_register_scheme_basic(self):
        # type: () -> None
        register_scheme("deltron", uses_netloc=True, default_port=3030)

        u1 = URL.from_text("deltron://example.com")
        assert u1.scheme == "deltron"
        assert u1.port == 3030
        assert u1.uses_netloc is True

        # test netloc works even when the original gives no indication
        u2 = URL.from_text("deltron:")
        u2 = u2.replace(host="example.com")
        assert u2.to_text() == "deltron://example.com"

        # test default port means no emission
        u3 = URL.from_text("deltron://example.com:3030")
        assert u3.to_text() == "deltron://example.com"

        register_scheme("nonetron", default_port=3031)
        u4 = URL(scheme="nonetron")
        u4 = u4.replace(host="example.com")
        assert u4.to_text() == "nonetron://example.com"

    def test_register_no_netloc_scheme(self):
        # type: () -> None
        register_scheme("noloctron", uses_netloc=False)
        u4 = URL(scheme="noloctron")
        u4 = u4.replace(path=("example", "path"))
        assert u4.to_text() == "noloctron:example/path"

    def test_register_no_netloc_with_port(self):
        # type: () -> None
        with self.assertRaises(ValueError):
            register_scheme("badnetlocless", uses_netloc=False, default_port=7)

    def test_invalid_uses_netloc(self):
        # type: () -> None
        with self.assertRaises(ValueError):
            register_scheme("badnetloc", uses_netloc=cast(bool, None))
        with self.assertRaises(ValueError):
            register_scheme("badnetloc", uses_netloc=cast(bool, object()))

    def test_register_invalid_uses_netloc(self):
        # type: () -> None
        with self.assertRaises(ValueError):
            register_scheme("lol", uses_netloc=cast(bool, object()))

    def test_register_invalid_port(self):
        # type: () -> None
        with self.assertRaises(ValueError):
            register_scheme("nope", default_port=cast(bool, object()))

    def test_register_no_quote_plus_scheme(self):
        # type: () -> None
        register_scheme("keepplus", query_plus_is_space=False)
        plus_is_not_space = DecodedURL.from_text(
            "keepplus://example.com/?q=a+b"
        )
        plus_is_space = DecodedURL.from_text("https://example.com/?q=a+b")
        assert plus_is_not_space.get("q") == ["a+b"]
        assert plus_is_space.get("q") == ["a b"]