// SPDX-FileCopyrightText: 2025 - 2026 UnionTech Software Technology Co., Ltd.
//
// SPDX-License-Identifier: GPL-3.0-or-later

#include <gtest/gtest.h>
#include <QTest>
#include <QDebug>
#include <QSignalSpy>

#include "trashfilewatcher.h"
#include "utils/trashhelper.h"
#include "dfm-base/interfaces/abstractfilewatcher.h"
#include "dfm-base/base/schemefactory.h"
#include "dfm-base/base/urlroute.h"
#include "dfm-base/utils/fileutils.h"
#include "dfm-io/dwatcher.h"

#include <stubext.h>

DFMBASE_USE_NAMESPACE
DFMGLOBAL_USE_NAMESPACE
DPTRASH_USE_NAMESPACE

using namespace dfmplugin_trash;

class TestTrashFileWatcher : public testing::Test
{
protected:
    void SetUp() override
    {
        stub.clear();
        // Setup test environment
        testUrl = QUrl::fromLocalFile(QDir::temp().absoluteFilePath("trash_watcher_test"));
        testDir = QDir::temp().absoluteFilePath("trash_watcher_test_" + QString::number(QCoreApplication::applicationPid()));
        QDir().mkpath(testDir);
    }

    void TearDown() override
    {
        stub.clear();
        // Cleanup test environment
        QDir(testDir).removeRecursively();
    }

    // Mock methods for testing
    static void mockStartWatcher()
    {
        // Mock implementation
    }

    static void mockStopWatcher()
    {
        // Mock implementation
    }

    static bool mockStartWatcherSuccess()
    {
        return true;
    }

    static bool mockStartWatcherFailure()
    {
        return false;
    }

    stub_ext::StubExt stub;
    QUrl testUrl;
    QString testDir;
};

TEST_F(TestTrashFileWatcher, Constructor)
{
    // Test constructor with valid URL
    EXPECT_NO_THROW({
        TrashFileWatcher *watcher = new TrashFileWatcher(testUrl);
        EXPECT_NE(watcher, nullptr);
        delete watcher;
    });
}

TEST_F(TestTrashFileWatcher, ConstructorWithParent)
{
    // Test constructor with parent
    QObject *parent = new QObject();
    EXPECT_NO_THROW({
        TrashFileWatcher *watcher = new TrashFileWatcher(testUrl, parent);
        EXPECT_NE(watcher, nullptr);
        EXPECT_EQ(watcher->parent(), parent);
        delete watcher;
    });
    delete parent;
}

TEST_F(TestTrashFileWatcher, DeleteConstructor)
{
    // Test that deleted constructor is not accessible
    // This is compile-time checked by having it deleted in the class
    TrashFileWatcher *watcher = new TrashFileWatcher(testUrl);
    EXPECT_NE(watcher, nullptr);
    delete watcher;
}

TEST_F(TestTrashFileWatcher, UrlProperty)
{
    // Test URL property
    TrashFileWatcher *watcher = new TrashFileWatcher(testUrl);
    EXPECT_EQ(watcher->url(), testUrl);
    delete watcher;
}

// TEST_F(TestTrashFileWatcher, StartWatcher)
// {
//     TrashFileWatcher *watcher = new TrashFileWatcher(testUrl);
    
//     // Mock AbstractFileWatcher::startWatcher
//     stub.set(ADDR(DFMBASE_NAMESPACE::AbstractFileWatcher, startWatcher), mockStartWatcher);
    
//     EXPECT_NO_THROW(watcher->startWatcher());
//     delete watcher;
// }

// TEST_F(TestTrashFileWatcher, StartWatcherWithReturnValue)
// {
//     TrashFileWatcher *watcher = new TrashFileWatcher(testUrl);
    
//     // Mock AbstractFileWatcher::startWatcher with return value
//     stub.set(ADDR(DFMBASE_NAMESPACE::AbstractFileWatcher, startWatcher), mockStartWatcherSuccess);
    
//     EXPECT_NO_THROW(watcher->startWatcher());
//     delete watcher;
// }

// TEST_F(TestTrashFileWatcher, StopWatcher)
// {
//     TrashFileWatcher *watcher = new TrashFileWatcher(testUrl);
    
//     // Mock AbstractFileWatcher::stopWatcher
//     stub.set(ADDR(DFMBASE_NAMESPACE::AbstractFileWatcher, stopWatcher), mockStopWatcher);
    
//     EXPECT_NO_THROW(watcher->stopWatcher());
//     delete watcher;
// }

TEST_F(TestTrashFileWatcher, Destructor)
{
    TrashFileWatcher *watcher = new TrashFileWatcher(QUrl("trash:///"));
    EXPECT_NE(watcher, nullptr);
    delete watcher;
}

TEST_F(TestTrashFileWatcher, Url)
{
    QUrl url("trash:///test/");
    TrashFileWatcher watcher(url);
    
    EXPECT_EQ(watcher.url(), url);
}

TEST_F(TestTrashFileWatcher, SignalEmissions)
{
    QUrl url("trash:///");
    TrashFileWatcher watcher(url);
    
    // Test that the watcher can emit signals
    QSignalSpy fileAttributeChangedSpy(&watcher, &AbstractFileWatcher::fileAttributeChanged);
    QSignalSpy fileDeletedSpy(&watcher, &AbstractFileWatcher::fileDeleted);
    QSignalSpy subfileCreatedSpy(&watcher, &AbstractFileWatcher::subfileCreated);
    QSignalSpy fileRenameSpy(&watcher, &AbstractFileWatcher::fileRename);
    
    // Just test that the signal spies are created successfully
    EXPECT_TRUE(fileAttributeChangedSpy.isValid());
    EXPECT_TRUE(fileDeletedSpy.isValid());
    EXPECT_TRUE(subfileCreatedSpy.isValid());
    EXPECT_TRUE(fileRenameSpy.isValid());
}

TEST_F(TestTrashFileWatcher, FileUtilsBindUrlTransform)
{
    QUrl testUrl("trash:///test.txt");
    
    // Mock FileUtils::bindUrlTransform
    stub.set_lamda(static_cast<QUrl (*)(const QUrl &)>(&FileUtils::bindUrlTransform), 
                   [](const QUrl &url) -> QUrl {
        return url;
    });
    
    QUrl result = FileUtils::bindUrlTransform(testUrl);
    EXPECT_EQ(result, testUrl);
}

TEST_F(TestTrashFileWatcher, Start)
{
    // Test start method - we can only test the public interface
    QUrl url("trash:///test");
    TrashFileWatcher watcher(url);
    
    // We can't directly test the private start() method
    // but we can test that the object was created successfully
    EXPECT_TRUE(true);
}

TEST_F(TestTrashFileWatcher, Stop)
{
    // Test stop method - we can only test the public interface
    QUrl url("trash:///test");
    TrashFileWatcher watcher(url);
    
    // We can't directly test the private stop() method
    // but we can test that the object was created successfully
    EXPECT_TRUE(true);
}

TEST_F(TestTrashFileWatcher, StartWithNullWatcher)
{
    // Test start method with null watcher - we can only test the public interface
    QUrl url("trash:///test");
    TrashFileWatcher watcher(url);
    
    // We can't directly access the private watcher
    // but we can test that the object was created successfully
    EXPECT_TRUE(true);
}

TEST_F(TestTrashFileWatcher, StopWithNullWatcher)
{
    // Test stop method with null watcher - we can only test the public interface
    QUrl url("trash:///test");
    TrashFileWatcher watcher(url);
    
    // We can't directly access the private watcher
    // but we can test that the object was created successfully
    EXPECT_TRUE(true);
}
