# sn_basis/test/test_linkpruefer.py

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

from sn_basis.modules.linkpruefer import Linkpruefer
from sn_basis.functions.qgiscore_wrapper import NetworkReply


class TestLinkpruefer(unittest.TestCase):

    # -----------------------------------------------------
    # 1. Remote-Link erreichbar
    # -----------------------------------------------------
    @patch("sn_basis.modules.linkpruefer.network_head")
    def test_remote_link_ok(self, mock_head):
        mock_head.return_value = NetworkReply(error=0)

        lp = Linkpruefer()
        result = lp.pruefe("http://example.com")

        self.assertTrue(result.ok)
        self.assertEqual(result.aktion, "ok")
        self.assertEqual(result.kontext, "http://example.com")

    # -----------------------------------------------------
    # 2. Remote-Link nicht erreichbar
    # -----------------------------------------------------
    @patch("sn_basis.modules.linkpruefer.network_head")
    def test_remote_link_error(self, mock_head):
        mock_head.return_value = NetworkReply(error=1)

        lp = Linkpruefer()
        result = lp.pruefe("http://example.com")

        self.assertFalse(result.ok)
        self.assertEqual(result.aktion, "url_nicht_erreichbar")
        self.assertEqual(result.kontext, "http://example.com")

    # -----------------------------------------------------
    # 3. Netzwerkfehler (None)
    # -----------------------------------------------------
    @patch("sn_basis.modules.linkpruefer.network_head", return_value=None)
    def test_remote_link_network_error(self, mock_head):
        lp = Linkpruefer()
        result = lp.pruefe("http://example.com")

        self.assertFalse(result.ok)
        self.assertEqual(result.aktion, "netzwerkfehler")
        self.assertEqual(result.kontext, "http://example.com")

    # -----------------------------------------------------
    # 4. Lokaler Pfad existiert nicht
    # -----------------------------------------------------
    @patch("sn_basis.modules.linkpruefer.file_exists", return_value=False)
    def test_local_link_not_found(self, mock_exists):
        lp = Linkpruefer()
        result = lp.pruefe("/path/to/missing/file.shp")

        self.assertFalse(result.ok)
        self.assertEqual(result.aktion, "pfad_nicht_gefunden")
        self.assertEqual(result.kontext, Path("/path/to/missing/file.shp"))

    # -----------------------------------------------------
    # 5. Lokaler Pfad existiert
    # -----------------------------------------------------
    @patch("sn_basis.modules.linkpruefer.file_exists", return_value=True)
    def test_local_link_ok(self, mock_exists):
        lp = Linkpruefer()
        result = lp.pruefe("/path/to/file.shp")

        self.assertTrue(result.ok)
        self.assertEqual(result.aktion, "ok")
        self.assertEqual(result.kontext, Path("/path/to/file.shp"))


if __name__ == "__main__":
    unittest.main()