from __future__ import annotations

import json
from textwrap import dedent

import pytest

from vdirsyncer import exceptions
from vdirsyncer.storage.base import Storage


def test_discover_command(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 = ["from a"]
    """
        ).format(str(tmpdir))
    )

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

    for x in "abc":
        foo.mkdir(x)
        bar.mkdir(x)
    bar.mkdir("d")

    result = runner.invoke(["discover"])
    assert not result.exception

    foo.mkdir("d")
    result = runner.invoke(["sync"])
    assert not result.exception
    lines = result.output.splitlines()
    assert "Syncing foobar/a" in lines
    assert "Syncing foobar/b" in lines
    assert "Syncing foobar/c" in lines
    assert "Syncing foobar/d" not in result.output

    result = runner.invoke(["discover"])
    assert not result.exception

    result = runner.invoke(["sync"])
    assert not result.exception
    assert "Syncing foobar/a" in lines
    assert "Syncing foobar/b" in lines
    assert "Syncing foobar/c" in lines
    assert "Syncing foobar/d" in result.output

    # Check for redundant data that is already in the config. This avoids
    # copying passwords from the config too.
    assert "fileext" not in tmpdir.join("status").join("foobar.collections").read()


def test_discover_different_collection_names(tmpdir, runner):
    foo = tmpdir.mkdir("foo")
    bar = tmpdir.mkdir("bar")
    runner.write_with_general(
        dedent(
            """
    [storage foo]
    type = "filesystem"
    fileext = ".txt"
    path = "{foo}"

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

    [pair foobar]
    a = "foo"
    b = "bar"
    collections = [
        ["coll1", "coll_a1", "coll_b1"],
        "coll2"
     ]
    """
        ).format(foo=str(foo), bar=str(bar))
    )

    result = runner.invoke(["discover"], input="y\n" * 6)
    assert not result.exception

    coll_a1 = foo.join("coll_a1")
    coll_b1 = bar.join("coll_b1")

    assert coll_a1.exists()
    assert coll_b1.exists()

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

    foo_txt = coll_a1.join("foo.txt")
    foo_txt.write("BEGIN:VCALENDAR\nUID:foo\nEND:VCALENDAR")

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

    assert foo_txt.exists()
    assert coll_b1.join("foo.txt").exists()


def test_discover_direct_path(tmpdir, runner):
    foo = tmpdir.join("foo")
    bar = tmpdir.join("bar")

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

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

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

    result = runner.invoke(["discover"], input="y\n" * 2)
    assert not result.exception

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

    assert foo.exists()
    assert bar.exists()


def test_null_collection_with_named_collection(tmpdir, runner):
    runner.write_with_general(
        dedent(
            f"""
    [pair foobar]
    a = "foo"
    b = "bar"
    collections = [["baz", "baz", null]]

    [storage foo]
    type = "filesystem"
    path = "{tmpdir!s}/foo/"
    fileext = ".txt"

    [storage bar]
    type = "singlefile"
    path = "{tmpdir!s}/bar.txt"
    """
        )
    )

    result = runner.invoke(["discover"], input="y\n" * 2)
    assert not result.exception

    foo = tmpdir.join("foo")
    foobaz = foo.join("baz")
    assert foo.exists()
    assert foobaz.exists()

    bar = tmpdir.join("bar.txt")
    assert bar.exists()

    foobaz.join("lol.txt").write("BEGIN:VCARD\nUID:HAHA\nEND:VCARD")

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

    assert "HAHA" in bar.read()


@pytest.mark.parametrize(
    ("a_requires", "b_requires"),
    [
        (True, True),
        (True, False),
        (False, True),
        (False, False),
    ],
)
def test_collection_required(a_requires, b_requires, tmpdir, runner, monkeypatch):
    class TestStorage(Storage):
        storage_name = "test"

        def __init__(self, require_collection, **kw):
            if require_collection:
                assert not kw.get("collection")
                raise exceptions.CollectionRequired

        async def get(self, href: str):
            raise NotImplementedError

        async def list(self) -> list[tuple]:
            raise NotImplementedError

    from vdirsyncer.cli.utils import storage_names

    monkeypatch.setitem(storage_names._storages, "test", TestStorage)

    runner.write_with_general(
        dedent(
            f"""
    [pair foobar]
    a = "foo"
    b = "bar"
    collections = null

    [storage foo]
    type = "test"
    require_collection = {json.dumps(a_requires)}

    [storage bar]
    type = "test"
    require_collection = {json.dumps(b_requires)}
    """
        )
    )

    result = runner.invoke(["discover"])
    if a_requires or b_requires:
        assert result.exception
        assert (
            "One or more storages don't support `collections = null`." in result.output
        )


def test_showconfig(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 = ["from a"]
    """
        ).format(str(tmpdir))
    )

    result = runner.invoke(["showconfig"])
    assert not result.exception
    assert json.loads(result.output) == {
        "storages": [
            {
                "type": "filesystem",
                "path": f"{tmpdir}/foo/",
                "fileext": ".txt",
                "instance_name": "foo",
            },
            {
                "type": "filesystem",
                "path": f"{tmpdir}/bar/",
                "fileext": ".txt",
                "instance_name": "bar",
            },
        ]
    }