#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# input-remapper - GUI for device specific keyboard mappings
# Copyright (C) 2025 sezanzeb <b8x45ygc9@mozmail.com>
#
# This file is part of input-remapper.
#
# input-remapper is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# input-remapper is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with input-remapper.  If not, see <https://www.gnu.org/licenses/>.

import unittest

try:
    from pydantic.v1 import ValidationError
except ImportError:
    from pydantic import ValidationError  # type: ignore[assignment, no-redef]

from inputremapper.configs.app_binding import (
    AppBinding,
    BoundPreset,
    MatchType,
    normalize_app_id,
)
from inputremapper.focus.focus_backend import FocusEvent
from tests.lib.test_setup import test_setup


def _event(app_id="", title="", backend="fake") -> FocusEvent:
    return FocusEvent(app_id=app_id, title=title, backend=backend)


@test_setup
class TestNormalizeAppId(unittest.TestCase):
    def test_lower_and_strip(self):
        self.assertEqual(normalize_app_id("  FireFox  "), "firefox")
        self.assertEqual(normalize_app_id("ALACRITTY"), "alacritty")
        self.assertEqual(normalize_app_id(""), "")


@test_setup
class TestBoundPreset(unittest.TestCase):
    def test_valid(self):
        bound = BoundPreset(group_key="Foo Device", preset="preset1")
        self.assertEqual(bound.group_key, "Foo Device")
        self.assertEqual(bound.preset, "preset1")

    def test_empty_group_key_rejected(self):
        with self.assertRaises(ValidationError):
            BoundPreset(group_key="", preset="preset1")
        with self.assertRaises(ValidationError):
            BoundPreset(group_key="   ", preset="preset1")

    def test_empty_preset_rejected(self):
        with self.assertRaises(ValidationError):
            BoundPreset(group_key="Foo Device", preset="")
        with self.assertRaises(ValidationError):
            BoundPreset(group_key="Foo Device", preset="  ")


@test_setup
class TestAppBinding(unittest.TestCase):
    def test_defaults(self):
        binding = AppBinding(app_id="firefox")
        self.assertEqual(binding.match, MatchType.wm_class)
        self.assertEqual(binding.presets, [])

    def test_default_presets_are_not_shared(self):
        binding_a = AppBinding(app_id="firefox")
        binding_b = AppBinding(app_id="chromium")
        binding_a.presets.append(BoundPreset(group_key="Foo Device", preset="preset1"))
        self.assertEqual(binding_b.presets, [])

    def test_empty_app_id_rejected(self):
        with self.assertRaises(ValidationError):
            AppBinding(app_id="")
        with self.assertRaises(ValidationError):
            AppBinding(app_id="   ")

    def test_invalid_regex_rejected(self):
        with self.assertRaises(ValidationError):
            AppBinding(app_id="(unclosed", match=MatchType.title_regex)

    def test_invalid_regex_allowed_for_wm_class(self):
        # an unbalanced parenthesis is a fine literal wm_class, only title_regex
        # compiles it as a pattern.
        binding = AppBinding(app_id="(unclosed", match=MatchType.wm_class)
        self.assertEqual(binding.app_id, "(unclosed")

    def test_with_presets(self):
        binding = AppBinding(
            app_id="firefox",
            presets=[BoundPreset(group_key="Foo Device", preset="preset1")],
        )
        self.assertEqual(len(binding.presets), 1)
        self.assertEqual(binding.presets[0].group_key, "Foo Device")

    # -- matches() ---------------------------------------------------------

    def test_matches_wm_class_normalized(self):
        binding = AppBinding(app_id="FireFox", match=MatchType.wm_class)
        self.assertTrue(binding.matches(_event(app_id="firefox")))
        self.assertTrue(binding.matches(_event(app_id="  FIREFOX ")))
        self.assertFalse(binding.matches(_event(app_id="chromium")))

    def test_matches_wm_class_ignores_title(self):
        binding = AppBinding(app_id="firefox", match=MatchType.wm_class)
        self.assertFalse(
            binding.matches(_event(app_id="chromium", title="firefox - page"))
        )

    def test_matches_title_regex(self):
        binding = AppBinding(app_id="Privat.*Browsing", match=MatchType.title_regex)
        self.assertTrue(
            binding.matches(_event(app_id="firefox", title="Private Browsing"))
        )
        self.assertFalse(
            binding.matches(_event(app_id="firefox", title="Normal Window"))
        )

    def test_matches_title_regex_searches_substring(self):
        binding = AppBinding(app_id="vim", match=MatchType.title_regex)
        # re.search, not fullmatch
        self.assertTrue(binding.matches(_event(title="file.py - nvim")))

    def test_matches_title_regex_case_sensitive(self):
        # unlike wm_class, the title regex is not normalized
        binding = AppBinding(app_id="Private", match=MatchType.title_regex)
        self.assertFalse(binding.matches(_event(title="private browsing")))

    def test_roundtrip_through_json(self):
        binding = AppBinding(
            app_id="firefox",
            match=MatchType.wm_class,
            presets=[BoundPreset(group_key="Foo Device", preset="preset1")],
        )
        import json

        as_dict = json.loads(binding.json())
        restored = AppBinding(**as_dict)
        self.assertEqual(restored, binding)


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