from __future__ import unicode_literals
import hashlib
import posixpath
import pytest
from devpi_common.url import URL


class TestURL:
    def test_basename(self):
        d = URL("http://codespeak.net/basename")
        assert d.basename == "basename"
        d = URL("http://codespeak.net")
        assert not d.basename

    def test_repr(self):
        d = URL("http://host.com/path")
        assert repr(d) == "<URL 'http://host.com/path'>"

    def test_parentbasename(self):
        d = URL("http://codespeak.net/simple/basename/")
        assert d.parentbasename == "basename"
        assert d.basename == ""

    def test_hashing(self):
        assert hash(URL("http://a")) == hash(URL("http://a"))
        assert URL("http://a") == URL("http://a")

    def test_eggfragment(self):
        url = URL("http://a/py.tar.gz#egg=py-dev")
        assert url.eggfragment == "py-dev"

    def test_md5(self):
        url = URL("http://a/py.tar.gz#md5=123123")
        assert url.md5 == "123123"
        assert url.hash_algo == hashlib.md5
        assert url.hash_value == "123123"

    @pytest.mark.parametrize("hashtype,hash_value", [
        ("sha256", "090123"),
        ("sha224", "1209380123"),
        ("md5", "102938")
    ])
    def test_hashtypes(self, hashtype, hash_value):
        link = URL('py-1.4.12.zip#%s=%s' % (hashtype, hash_value))
        assert link.hash_algo == getattr(hashlib, hashtype)
        assert link.hash_value == hash_value

    def test_nohashtypes(self):
        link = URL("whateveer#lqk=123")
        assert link.hash_value is None and link.hash_algo is None

    @pytest.mark.parametrize("url,path,expected", [
        ("http://root", "dir1", "http://root/dir1"),
        ("http://root", "dir1/", "http://root/dir1/"),
        ("http://root/", "dir1/", "http://root/dir1/"),
        ("http://root/dir1", "dir2", "http://root/dir2"),
        ("http://root/dir1/", "dir2/", "http://root/dir1/dir2/"),
        ("http://root/dir1/", "/dir2", "http://root/dir2"),
        ("http://root/dir1/", "/dir2/", "http://root/dir2/"),
        ("http://root/dir1/dir3", "dir2", "http://root/dir1/dir2"),
        ("http://root/dir1/dir3/", "dir2/", "http://root/dir1/dir3/dir2/"),
        ("http://root/dir1/dir3/", "/dir2", "http://root/dir2"),
        ("http://root/dir1/dir3/", "/dir2/", "http://root/dir2/"),
    ])
    def test_joinpath(self, url, path, expected):
        d_url = URL(url)
        url_joined = d_url.joinpath(path).url
        assert url_joined == expected
        assert URL(url, path).url == expected

        assert d_url.joinpath(path, "end").url == expected.rstrip('/') + "/end"
        assert URL(url, path, "end").url == expected.rstrip('/') + "/end"

        assert d_url.joinpath(path, "end", asdir=1).url == expected.rstrip('/') + "/end/"
        assert URL(url, path, "end", asdir=1).url == expected.rstrip('/') + "/end/"

    def test_addpath(self):
        url = URL("http://root.com/path")
        assert url.addpath("sub").url == "http://root.com/path/sub"
        assert url.addpath("sub", asdir=1).url == "http://root.com/path/sub/"
        url = URL("http://root.com/path/")
        assert url.addpath("sub").url == "http://root.com/path/sub"
        assert url.addpath("sub", asdir=1).url == "http://root.com/path/sub/"

    def test_instantiate_with_url(self):
        url = URL("http://hesie.de")
        assert URL(url) == url

    def test_empty_url(self):
        assert not URL("")
        assert not URL()
        url = URL(None)
        assert url.url == ""

    def test_asdir(self):
        assert URL("http://heise.de").asdir().url == "http://heise.de/"
        assert URL("http://py.org/path").asdir().url == "http://py.org/path/"
        assert URL("http://py.org/path/").asdir().url == "http://py.org/path/"

    def test_asfile(self):
        assert URL("http://heise.de").asfile().url == "http://heise.de"
        assert URL("http://heise.de/").asfile().url == "http://heise.de"
        assert URL("http://x.de/path/").asfile().url == "http://x.de/path"
        assert URL("http://x.de/path").asfile().url == "http://x.de/path"

    def test_joinpath_asdir(self):
        url = URL("http://heise.de")
        new = url.joinpath("hello", asdir=1)
        assert new.url == "http://heise.de/hello/"
        new = url.joinpath("hello/", asdir=1)
        assert new.url == "http://heise.de/hello/"

    def test_geturl_nofrag(self):
        url = URL("http://a/py.tar.gz#egg=py-dev")
        assert url.geturl_nofragment() == "http://a/py.tar.gz"

    def test_url_nofrag(self):
        url = URL("http://a/py.tar.gz#egg=py-dev")
        res = url.url_nofrag
        assert not isinstance(res, URL)
        assert res == "http://a/py.tar.gz"

    @pytest.mark.parametrize("url,path,expected", [
        ("/something/this", "/something/that", "that"),
        ("/something/this", "/something/that/", "that/"),
        ("/something/this", "/something/this", "this"),
        ("/something/this", "/something/this/", "this/"),
        ("/something/this", "/", "../"),
        ("/", "/this/that/", "this/that/"),
        ("/something/this/", "/something/that", "../that"),
        ("/something/this/", "/other/that", "../../other/that"),
        ("/something/this/", "/other/that", "../../other/that"),
        ("/something/this/", "/something/this/that", "that"),
        ("/something/this/", "/something/this/that/there", "that/there"),
    ])
    def test_relpath(self, url, path, expected):
        url = URL("http://example.com" + url)
        relpath = url.relpath(path)
        assert relpath == expected

    def test_relpath_edge_case(self):
        with pytest.raises(ValueError):
            URL("http://qwe/path").relpath("lkjqwe")

    def test_netloc(self):
        assert URL("http://qwe/").netloc == 'qwe'
        assert URL("http://foo:pass@qwe/").netloc == 'foo:pass@qwe'

    def test_replace(self):
        url = URL("http://qwe/foo?bar=ham#hash")
        assert url.replace(scheme='https').url == "https://qwe/foo?bar=ham#hash"
        assert url.replace(scheme='').url == "//qwe/foo?bar=ham#hash"
        assert url.replace(netloc='world').url == "http://world/foo?bar=ham#hash"
        assert url.replace(netloc='').url == "http:///foo?bar=ham#hash"
        assert url.replace(path='/').url == "http://qwe/?bar=ham#hash"
        assert url.replace(path='').url == "http://qwe?bar=ham#hash"
        assert url.replace(query='').url == "http://qwe/foo#hash"
        assert url.replace(fragment='').url == "http://qwe/foo?bar=ham"
        assert url.replace(fragment='foo').url == "http://qwe/foo?bar=ham#foo"
        # original shouldn't have changed
        assert url.url == "http://qwe/foo?bar=ham#hash"
        # trying to change something not existing does nothing
        assert url.replace(foo='https').url == "http://qwe/foo?bar=ham#hash"

    def test_replace_nothing(self):
        url = URL("http://qwe/foo?bar=ham#hash")
        new_url = url.replace()
        assert new_url is not url
        assert new_url.url == url.url

    def test_comparison(self):
        base = URL('https://pypi.python.org')
        url = URL('https://pypi.python.org/simple/foo').replace(path='')
        assert base == url
        assert not (base != url)

    def test_username(self):
        assert URL('http://example.com').username is None
        assert URL('http://user@example.com').username == 'user'
        assert URL('http://user:password@example.com').username == 'user'
        assert URL('https://example.com:443').username is None
        assert URL('https://user@example.com:443').username == 'user'
        assert URL('https://user:password@example.com:443').username == 'user'

    def test_password(self):
        assert URL('http://example.com').password is None
        assert URL('http://user@example.com').password is None
        assert URL('http://user:password@example.com').password == 'password'
        assert URL('https://example.com:443').password is None
        assert URL('https://user@example.com:443').password is None
        assert URL('https://user:password@example.com:443').password == 'password'

    def test_hostname(self):
        assert URL('http://example.com').hostname == 'example.com'
        assert URL('http://user@example.com').hostname == 'example.com'
        assert URL('http://user:password@example.com').hostname == 'example.com'
        assert URL('https://example.com:443').hostname == 'example.com'
        assert URL('https://user@example.com:443').hostname == 'example.com'
        assert URL('https://user:password@example.com:443').hostname == 'example.com'

    def test_port(self):
        assert URL('http://example.com').port is None
        assert URL('http://user@example.com').port is None
        assert URL('http://user:password@example.com').port is None
        assert URL('https://example.com:443').port == 443
        assert URL('https://user@example.com:443').port == 443
        assert URL('https://user:password@example.com:443').port == 443


#
# test torelpath/fromrelpath
#

@pytest.mark.parametrize("url", [
    "http://codespeak.net", "https://codespeak.net",
    "http://codespeak.net/path",
    "http://codespeak.net:3123/path",
    "https://codespeak.net:80/path",
])
def test_canonical_url_path_mappings(url):
    url = URL(url)
    path = url.torelpath()
    assert path[0] != "/"
    assert posixpath.normpath(path) == path
    back_url = URL.fromrelpath(path)
    assert url == back_url