import sys
import tempfile
from pathlib import Path

sys.path.insert(0, str(Path(__file__).resolve().parent.parent))

import unittest

import deckit.display as display


class Resolution(unittest.TestCase):
    def test_reads_adb(self):
        self.assertEqual(
            display.tablet_resolution({"display": {}}, adb=lambda: "Physical size: 1920x1200"),
            "1920x1200")

    def test_config_override(self):
        self.assertEqual(
            display.tablet_resolution({"display": {"resolution": "2560x1600"}},
                                      adb=lambda: "1920x1200"),
            "2560x1600")


class Swaybg(unittest.TestCase):
    def test_finds_the_image_for_an_output(self):
        root = Path(tempfile.mkdtemp())
        d = root / "123"
        d.mkdir()
        (d / "cmdline").write_bytes(b"/usr/bin/swaybg\0-o\0DP-1\0-i\0/a.png\0-m\0fill\0")
        self.assertEqual(display._swaybg_for("DP-1", root), (123, "/a.png", "fill"))
        self.assertIsNone(display._swaybg_for("TAB", root))


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