# -*- coding: utf-8 -*-

from textwrap import dedent

from click.testing import CliRunner

import pytest

import vdirsyncer.cli as cli


def test_simple_run(tmpdir, runner):
    runner.write_with_general(dedent('''
    [pair my_pair]
    a = my_a
    b = my_b

    [storage my_a]
    type = filesystem
    path = {0}/path_a/
    fileext = .txt

    [storage my_b]
    type = filesystem
    path = {0}/path_b/
    fileext = .txt
    ''').format(str(tmpdir)))

    tmpdir.mkdir('path_a')
    tmpdir.mkdir('path_b')

    result = runner.invoke(['sync'])
    assert not result.exception

    tmpdir.join('path_a/haha.txt').write('UID:haha')
    result = runner.invoke(['sync'])
    assert 'Copying (uploading) item haha to my_b' in result.output
    assert tmpdir.join('path_b/haha.txt').read() == 'UID:haha'


def test_debug_connections(tmpdir, runner):
    runner.write_with_general(dedent('''
    [pair my_pair]
    a = my_a
    b = my_b

    [storage my_a]
    type = filesystem
    path = {0}/path_a/
    fileext = .txt

    [storage my_b]
    type = filesystem
    path = {0}/path_b/
    fileext = .txt
    ''').format(str(tmpdir)))

    tmpdir.mkdir('path_a')
    tmpdir.mkdir('path_b')

    result = runner.invoke(['-vdebug', 'sync', '--max-workers=3'])
    assert 'using 3 maximal workers' in result.output.lower()

    result = runner.invoke(['-vdebug', 'sync'])
    assert 'using 1 maximal workers' in result.output.lower()


def test_empty_storage(tmpdir, runner):
    runner.write_with_general(dedent('''
    [pair my_pair]
    a = my_a
    b = my_b

    [storage my_a]
    type = filesystem
    path = {0}/path_a/
    fileext = .txt

    [storage my_b]
    type = filesystem
    path = {0}/path_b/
    fileext = .txt
    ''').format(str(tmpdir)))

    tmpdir.mkdir('path_a')
    tmpdir.mkdir('path_b')

    result = runner.invoke(['sync'])
    assert not result.exception

    tmpdir.join('path_a/haha.txt').write('UID:haha')
    result = runner.invoke(['sync'])
    tmpdir.join('path_b/haha.txt').remove()
    result = runner.invoke(['sync'])
    lines = result.output.splitlines()
    assert len(lines) == 2
    assert lines[0] == 'Syncing my_pair'
    assert lines[1].startswith('error: my_pair: '
                               'Storage "my_b" was completely emptied.')
    assert result.exception


def test_verbosity(tmpdir):
    runner = CliRunner()
    config_file = tmpdir.join('config')
    config_file.write('')

    result = runner.invoke(
        cli.app, ['--verbosity=HAHA', 'sync'],
        env={'VDIRSYNCER_CONFIG': str(config_file)}
    )
    assert result.exception
    assert 'invalid verbosity value' in result.output.lower()


def test_deprecated_item_status(tmpdir):
    f = tmpdir.join('mypair.items')
    f.write(dedent('''
    ["ident", ["href_a", "etag_a", "href_b", "etag_b"]]
    ["ident_two", ["href_a", "etag_a", "href_b", "etag_b"]]
    ''').strip())

    data = {
        'ident': ['href_a', 'etag_a', 'href_b', 'etag_b'],
        'ident_two': ['href_a', 'etag_a', 'href_b', 'etag_b']
    }

    assert cli.utils.load_status(
        str(tmpdir), 'mypair', data_type='items') == data

    cli.utils.save_status(
        str(tmpdir), 'mypair', data_type='items', data=data)
    assert cli.utils.load_status(
        str(tmpdir), 'mypair', data_type='items') == data


def test_collections_cache_invalidation(tmpdir, runner):
    runner.write_with_general(dedent('''
    [storage foo]
    type = filesystem
    path = {0}/foo/
    fileext = .txt

    [storage bar]
    type = filesystem
    path = {0}/bar/
    fileext = .txt

    [pair foobar]
    a = foo
    b = bar
    collections = ["a", "b", "c"]
    ''').format(str(tmpdir)))

    foo = tmpdir.mkdir('foo')
    bar = tmpdir.mkdir('bar')
    for x in 'abc':
        foo.mkdir(x)
        bar.mkdir(x)
    foo.join('a/itemone.txt').write('UID:itemone')

    result = runner.invoke(['sync'])
    assert not result.exception
    assert 'detected change in config file' not in result.output.lower()

    rv = bar.join('a').listdir()
    assert len(rv) == 1
    assert rv[0].basename == 'itemone.txt'

    runner.write_with_general(dedent('''
    [storage foo]
    type = filesystem
    path = {0}/foo/
    fileext = .txt

    [storage bar]
    type = filesystem
    path = {0}/bar2/
    fileext = .txt

    [pair foobar]
    a = foo
    b = bar
    collections = ["a", "b", "c"]
    ''').format(str(tmpdir)))

    for entry in tmpdir.join('status').listdir():
        if not str(entry).endswith('.collections'):
            entry.remove()
    bar2 = tmpdir.mkdir('bar2')
    for x in 'abc':
        bar2.mkdir(x)
    result = runner.invoke(['sync'])
    assert 'detected change in config file' in result.output.lower()
    assert not result.exception

    rv = bar.join('a').listdir()
    rv2 = bar2.join('a').listdir()
    assert len(rv) == len(rv2) == 1
    assert rv[0].basename == rv2[0].basename == 'itemone.txt'


def test_invalid_pairs_as_cli_arg(tmpdir, runner):
    runner.write_with_general(dedent('''
    [storage foo]
    type = filesystem
    path = {0}/foo/
    fileext = .txt

    [storage bar]
    type = filesystem
    path = {0}/bar/
    fileext = .txt

    [pair foobar]
    a = foo
    b = bar
    collections = ["a", "b", "c"]
    ''').format(str(tmpdir)))

    for base in ('foo', 'bar'):
        base = tmpdir.mkdir(base)
        for c in 'abc':
            base.mkdir(c)

    result = runner.invoke(['sync', 'foobar/d'])
    assert result.exception
    assert 'pair foobar: collection d not found' in result.output.lower()


def test_multiple_pairs(tmpdir, runner):
    def get_cfg():
        for name_a, name_b in ('foo', 'bar'), ('bam', 'baz'):
            yield dedent('''
            [pair {a}{b}]
            a = {a}
            b = {b}
            ''').format(a=name_a, b=name_b)

            for name in name_a, name_b:
                yield dedent('''
                [storage {name}]
                type = filesystem
                path = {base}/{name}/
                fileext = .txt
                ''').format(name=name, base=str(tmpdir))

    runner.write_with_general(''.join(get_cfg()))

    result = runner.invoke(['sync'])
    assert set(result.output.splitlines()) > set([
        'Discovering collections for pair bambaz',
        'Discovering collections for pair foobar',
        'Syncing bambaz',
        'Syncing foobar',
    ])


def test_create_collections(tmpdir, runner):
    runner.write_with_general(dedent('''
    [pair foobar]
    a = foo
    b = bar
    collections = ["a", "b", "c"]

    [storage foo]
    type = filesystem
    path = {base}/foo/
    fileext = .txt

    [storage bar]
    type = filesystem
    path = {base}/bar/
    fileext = .txt
    '''.format(base=str(tmpdir))))

    result = runner.invoke(['sync'])
    assert result.exception
    entries = set(x.basename for x in tmpdir.listdir())
    assert 'foo' not in entries and 'bar' not in entries

    result = runner.invoke(['sync'], input='y\n' * 6)
    assert not result.exception
    assert \
        set(x.basename for x in tmpdir.join('foo').listdir()) == \
        set(x.basename for x in tmpdir.join('bar').listdir()) == \
        set('abc')


def test_ident_conflict(tmpdir, runner):
    runner.write_with_general(dedent('''
    [pair foobar]
    a = foo
    b = bar

    [storage foo]
    type = filesystem
    path = {base}/foo/
    fileext = .txt

    [storage bar]
    type = filesystem
    path = {base}/bar/
    fileext = .txt
    '''.format(base=str(tmpdir))))

    foo = tmpdir.mkdir('foo')
    tmpdir.mkdir('bar')

    foo.join('one.txt').write('UID:1')
    foo.join('two.txt').write('UID:1')
    foo.join('three.txt').write('UID:1')

    result = runner.invoke(['sync'])
    assert result.exception
    assert ('error: foobar: Storage "foo" contains multiple items with the '
            'same UID or even content') in result.output
    assert sorted([
        'one.txt' in result.output,
        'two.txt' in result.output,
        'three.txt' in result.output,
    ]) == [False, True, True]


@pytest.mark.parametrize('existing,missing', [
    ('foo', 'bar'),
    ('bar', 'foo'),
])
def test_unknown_storage(tmpdir, runner, existing, missing):
    runner.write_with_general(dedent('''
    [pair foobar]
    a = foo
    b = bar

    [storage {existing}]
    type = filesystem
    path = {base}/{existing}/
    fileext = .txt
    '''.format(base=str(tmpdir), existing=existing)))

    tmpdir.mkdir(existing)

    result = runner.invoke(['sync'])
    assert result.exception

    assert (
        "Storage '{missing}' not found. "
        "These are the configured storages: ['{existing}']"
        .format(missing=missing, existing=existing)
    ) in result.output