from __future__ import annotations

from pathlib import Path
from unittest.mock import Mock, patch

import pytest
import requests

from app.opencloud_access import (
    OpenCloudDriveResolutionError,
    OpenCloudUploadError,
    build_opencloud_url,
    resolve_personal_drive,
    upload_local_file_to_opencloud,
)


def test_build_opencloud_url_encodes_cyrillic_and_spaces() -> None:
    url = build_opencloud_url(
        space_id="storage123$space456",
        folder_segments=("Райков М.С.",),
        file_name="report 2026.xlsx",
    )
    assert url == (
        "https://docs.raisa.go.rshbank.ru/dav/spaces/storage123$space456/"
        "%D0%A0%D0%B0%D0%B9%D0%BA%D0%BE%D0%B2%20%D0%9C.%D0%A1./"
        "report%202026.xlsx"
    )


def test_build_opencloud_url_without_folder() -> None:
    url = build_opencloud_url(
        space_id="abc", folder_segments=(), file_name="report.xlsx"
    )
    assert url == "https://docs.raisa.go.rshbank.ru/dav/spaces/abc/report.xlsx"


def test_build_opencloud_url_requires_space_id() -> None:
    with pytest.raises(OpenCloudUploadError):
        build_opencloud_url(space_id="", folder_segments=(), file_name="report.xlsx")


def test_upload_local_file_to_opencloud_success(tmp_path: Path) -> None:
    local_file = tmp_path / "report.xlsx"
    local_file.write_bytes(b"fake-xlsx-bytes")

    fake_response = Mock(status_code=201, text="")
    with patch("app.opencloud_access.requests.put", return_value=fake_response) as put:
        url = upload_local_file_to_opencloud(
            local_file,
            space_id="abc$def",
            folder_segments=("Райков М.С.",),
            file_name="report.xlsx",
            access_token="token-123",
        )

    assert url.endswith("/report.xlsx")
    _, kwargs = put.call_args
    assert kwargs["headers"]["Authorization"] == "Bearer token-123"


def test_upload_local_file_to_opencloud_missing_token(tmp_path: Path) -> None:
    local_file = tmp_path / "report.xlsx"
    local_file.write_bytes(b"data")
    with pytest.raises(OpenCloudUploadError):
        upload_local_file_to_opencloud(
            local_file,
            space_id="abc",
            folder_segments=(),
            file_name="report.xlsx",
            access_token="",
        )


def test_upload_local_file_to_opencloud_missing_local_file(tmp_path: Path) -> None:
    missing_file = tmp_path / "does-not-exist.xlsx"
    with pytest.raises(OpenCloudUploadError):
        upload_local_file_to_opencloud(
            missing_file,
            space_id="abc",
            folder_segments=(),
            file_name="report.xlsx",
            access_token="token-123",
        )


def test_upload_local_file_to_opencloud_http_error(tmp_path: Path) -> None:
    local_file = tmp_path / "report.xlsx"
    local_file.write_bytes(b"data")

    fake_response = Mock(status_code=401, text="Unauthorized")
    with patch("app.opencloud_access.requests.put", return_value=fake_response):
        with pytest.raises(OpenCloudUploadError):
            upload_local_file_to_opencloud(
                local_file,
                space_id="abc",
                folder_segments=(),
                file_name="report.xlsx",
                access_token="token-123",
            )


def test_resolve_personal_drive_success() -> None:
    fake_response = Mock(
        status_code=200,
        json=lambda: {
            "value": [
                {"driveType": "project", "id": "irrelevant$irrelevant"},
                {
                    "driveType": "personal",
                    "id": "storage123$space456",
                    "root": {
                        "webDavUrl": "https://example.test/dav/spaces/storage123$space456"
                    },
                },
            ]
        },
    )
    with patch("app.opencloud_access.requests.get", return_value=fake_response) as get:
        drive = resolve_personal_drive("token-123")

    assert drive == {
        "id": "storage123$space456",
        "web_dav_url": "https://example.test/dav/spaces/storage123$space456",
    }
    _, kwargs = get.call_args
    assert kwargs["headers"]["Authorization"] == "Bearer token-123"


def test_resolve_personal_drive_missing_token() -> None:
    with pytest.raises(OpenCloudDriveResolutionError):
        resolve_personal_drive("")


def test_resolve_personal_drive_unauthorized() -> None:
    fake_response = Mock(status_code=401, text="Unauthorized")
    with patch("app.opencloud_access.requests.get", return_value=fake_response):
        with pytest.raises(OpenCloudDriveResolutionError):
            resolve_personal_drive("token-123")


def test_resolve_personal_drive_no_personal_drive_found() -> None:
    fake_response = Mock(
        status_code=200,
        json=lambda: {"value": [{"driveType": "project", "id": "abc$def"}]},
    )
    with patch("app.opencloud_access.requests.get", return_value=fake_response):
        with pytest.raises(OpenCloudDriveResolutionError):
            resolve_personal_drive("token-123")


def test_resolve_personal_drive_network_error() -> None:
    with patch(
        "app.opencloud_access.requests.get",
        side_effect=requests.RequestException("boom"),
    ):
        with pytest.raises(OpenCloudDriveResolutionError):
            resolve_personal_drive("token-123")