"""
GUI测试模块 - 使用pytest-qt测试PyQt5界面
"""

import pytest
import os
import sys
import tempfile

sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))

from PyQt5.QtWidgets import QApplication, QMessageBox, QDialog
from PyQt5.QtCore import Qt

from database import DatabaseManager
from login_dialog import LoginDialog
from main import FabricManager


@pytest.fixture(scope="session")
def qapp():
    app = QApplication.instance()
    if app is None:
        app = QApplication([])
    yield app


@pytest.fixture
def temp_db():
    temp_dir = tempfile.mkdtemp()
    db_path = os.path.join(temp_dir, "test_gui.db")
    db_manager = DatabaseManager(db_path)
    yield db_path
    import gc
    gc.collect()
    try:
        if os.path.exists(db_path):
            os.remove(db_path)
        os.rmdir(temp_dir)
    except:
        pass


class TestLoginDialog:
    """登录对话框GUI测试"""

    def test_login_dialog_init(self, qapp, temp_db, qtbot):
        dialog = LoginDialog(temp_db)
        qtbot.addWidget(dialog)
        
        assert dialog.windowTitle() == "选择模式并登录"
        assert dialog.is_admin == False

    def test_login_dialog_has_inputs(self, qapp, temp_db, qtbot):
        dialog = LoginDialog(temp_db)
        qtbot.addWidget(dialog)
        
        assert hasattr(dialog, 'admin_input')
        assert hasattr(dialog, 'user_input')

    def test_admin_login_correct_password(self, qapp, temp_db, qtbot, monkeypatch):
        dialog = LoginDialog(temp_db)
        qtbot.addWidget(dialog)
        
        dialog.admin_input.setText("123456")
        monkeypatch.setattr(QMessageBox, 'warning', lambda *args: None)
        
        dialog.login_mode(True)
        
        assert dialog.is_admin == True

    def test_admin_login_wrong_password(self, qapp, temp_db, qtbot, monkeypatch):
        dialog = LoginDialog(temp_db)
        qtbot.addWidget(dialog)
        
        dialog.admin_input.setText("wrongpassword")
        warning_called = []
        monkeypatch.setattr(QMessageBox, 'warning', lambda *args: warning_called.append(True))
        
        dialog.login_mode(True)
        
        assert len(warning_called) == 1
        assert dialog.is_admin == False

    def test_user_login_correct_password(self, qapp, temp_db, qtbot, monkeypatch):
        dialog = LoginDialog(temp_db)
        qtbot.addWidget(dialog)
        
        dialog.user_input.setText("123456")
        monkeypatch.setattr(QMessageBox, 'warning', lambda *args: None)
        
        dialog.login_mode(False)
        
        assert dialog.is_admin == False

    def test_user_login_wrong_password(self, qapp, temp_db, qtbot, monkeypatch):
        dialog = LoginDialog(temp_db)
        qtbot.addWidget(dialog)
        
        dialog.user_input.setText("wrongpassword")
        warning_called = []
        monkeypatch.setattr(QMessageBox, 'warning', lambda *args: warning_called.append(True))
        
        dialog.login_mode(False)
        
        assert len(warning_called) == 1

    def test_get_stored_password(self, qapp, temp_db, qtbot):
        dialog = LoginDialog(temp_db)
        qtbot.addWidget(dialog)
        
        admin_pwd = dialog.get_stored_password("admin")
        user_pwd = dialog.get_stored_password("user")
        
        assert admin_pwd == "123456"
        assert user_pwd == "123456"

    def test_set_password(self, qapp, temp_db, qtbot):
        dialog = LoginDialog(temp_db)
        qtbot.addWidget(dialog)
        
        result = dialog.set_password("admin", "newpass123")
        assert result == True
        
        new_pwd = dialog.get_stored_password("admin")
        assert new_pwd == "newpass123"


@pytest.fixture
def fabric_manager_admin(qapp, temp_db, qtbot):
    window = FabricManager.__new__(FabricManager)
    window.is_admin = True
    window.db_path = temp_db
    from database import DatabaseManager
    window.db_manager = DatabaseManager(temp_db)
    from PyQt5.QtWidgets import QMainWindow
    QMainWindow.__init__(window)
    window.setWindowTitle("服装布料计算管理器 - 专业版 （管理员模式）")
    window.resize(1300, 800)
    window.init_ui()
    window.load_garment_list()
    qtbot.addWidget(window)
    return window


@pytest.fixture
def fabric_manager_user(qapp, temp_db, qtbot):
    window = FabricManager.__new__(FabricManager)
    window.is_admin = False
    window.db_path = temp_db
    from database import DatabaseManager
    window.db_manager = DatabaseManager(temp_db)
    from PyQt5.QtWidgets import QMainWindow
    QMainWindow.__init__(window)
    window.setWindowTitle("服装布料计算管理器 - 专业版 （普通模式）")
    window.resize(1300, 800)
    window.init_ui()
    window.load_garment_list()
    qtbot.addWidget(window)
    return window


class TestFabricManager:
    """主窗口GUI测试"""

    def test_main_window_init_admin(self, fabric_manager_admin):
        assert "管理员模式" in fabric_manager_admin.windowTitle()

    def test_main_window_init_user(self, fabric_manager_user):
        assert "普通模式" in fabric_manager_user.windowTitle()

    def test_main_window_has_components(self, fabric_manager_admin):
        assert hasattr(fabric_manager_admin, 'garment_combo')
        assert hasattr(fabric_manager_admin, 'quantity_input')
        assert hasattr(fabric_manager_admin, 'loss_input')
        assert hasattr(fabric_manager_admin, 'result_text')

    def test_quantity_input_default(self, fabric_manager_admin):
        assert fabric_manager_admin.quantity_input.value() == 1000

    def test_loss_input_default(self, fabric_manager_admin):
        assert fabric_manager_admin.loss_input.value() == 5.0

    def test_unit_converter_components(self, fabric_manager_admin):
        assert hasattr(fabric_manager_admin, 'calc_m')
        assert hasattr(fabric_manager_admin, 'calc_yard')
        assert hasattr(fabric_manager_admin, 'calc_kg')
        assert hasattr(fabric_manager_admin, 'calc_width')
        assert hasattr(fabric_manager_admin, 'calc_gsm')

    def test_unit_converter_defaults(self, fabric_manager_admin):
        assert fabric_manager_admin.calc_width.value() == 150
        assert fabric_manager_admin.calc_gsm.value() == 200

    def test_meter_to_yard_conversion(self, fabric_manager_admin):
        fabric_manager_admin.calc_m.setValue(1.0)
        expected_yard = 1.0 / 0.9144
        assert abs(fabric_manager_admin.calc_yard.value() - expected_yard) < 0.001

    def test_quantity_input_change(self, fabric_manager_admin):
        fabric_manager_admin.quantity_input.setValue(500)
        assert fabric_manager_admin.quantity_input.value() == 500

    def test_loss_input_change(self, fabric_manager_admin):
        fabric_manager_admin.loss_input.setValue(10.0)
        assert fabric_manager_admin.loss_input.value() == 10.0