/*
 * Copyright (C) 2022 Apple Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGE.
 */

#import "config.h"

#if PLATFORM(IOS_FAMILY)

#import "ClassMethodSwizzler.h"
#import "PDFTestHelpers.h"
#import "PlatformUtilities.h"
#import "TestNavigationDelegate.h"
#import "TestProtocol.h"
#import "TestWKWebView.h"
#import "WKWebViewConfigurationExtras.h"

namespace TestWebKitAPI {

TEST(ApplicationStateTracking, WindowDeallocDoesNotPermanentlyFreezeLayerTree)
{
    auto configuration = adoptNS([WKWebViewConfiguration new]);

    RetainPtr<TestWKWebView> webView;
    RetainPtr<UIWindow> window;

    auto postWithScene = [&](NSNotificationName name) {
        [NSNotificationCenter.defaultCenter postNotificationName:name object:[window windowScene] userInfo:nil];
    };

    @autoreleasepool {
        webView = adoptNS([[TestWKWebView alloc] initWithFrame:CGRectMake(0, 0, 320, 568) configuration:configuration.get() addToWindow:NO]);
        window = adoptNS([[UIWindow alloc] initWithFrame:CGRectMake(0, 0, 320, 568)]);
        [window addSubview:webView.get()];
        [webView synchronouslyLoadHTMLString:@"<body>Foo</body>"];
        [webView waitForNextPresentationUpdate];
        postWithScene(UISceneDidEnterBackgroundNotification);
        window = nil;
    }

    window = adoptNS([[UIWindow alloc] initWithFrame:CGRectMake(0, 0, 320, 568)]);
    postWithScene(UISceneWillEnterForegroundNotification);
    [window addSubview:webView.get()];
    [webView synchronouslyLoadHTMLString:@"<body>Bar</body>"];
    [webView waitForNextPresentationUpdate];
}

#if HAVE(PDFKIT)

TEST(ApplicationStateTracking, NavigatingFromPDFDoesNotLeaveWebViewInactive)
{
    if constexpr (!unifiedPDFForTestingEnabled)
        return;

#if ENABLE(UNIFIED_PDF)
    RetainPtr configuration = configurationForWebViewTestingUnifiedPDF();
#else
    RetainPtr configuration = [WKWebViewConfiguration _test_configurationWithTestPlugInClassName:@"WebProcessPlugInWithInternals" configureJSCForTesting:YES];
#endif

    RetainPtr webView = adoptNS([[TestWKWebView alloc] initWithFrame:CGRectMake(0, 0, 320, 568) configuration:configuration.get()]);
    RetainPtr delegate = adoptNS([TestNavigationDelegate new]);
    [webView setNavigationDelegate:delegate.get()];

    [webView loadSimulatedRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"https://foo.com"]] responseHTMLString:@"<body>Hello world</body>"];
    [delegate waitForDidFinishNavigation];
    [webView waitForNextPresentationUpdate];

    RetainPtr fakeURL = [NSURL URLWithString:@"https://bar.com"];
    RetainPtr pdfData = [NSData dataWithContentsOfURL:[NSBundle.test_resourcesBundle URLForResource:@"test" withExtension:@"pdf"]];
    RetainPtr response = adoptNS([[NSURLResponse alloc] initWithURL:fakeURL.get() MIMEType:@"application/pdf" expectedContentLength:[pdfData length] textEncodingName:nil]);
    [webView loadSimulatedRequest:[NSURLRequest requestWithURL:fakeURL.get()] response:response.get() responseData:pdfData.get()];
    [delegate waitForDidFinishNavigation];

    [webView goBack];
    [delegate waitForDidFinishNavigation];
    [webView waitForNextPresentationUpdate];

    EXPECT_TRUE([[webView objectByEvaluatingJavaScript:@"internals.isPageActive()"] boolValue]);
}

#endif // HAVE(PDFKIT)

} // namespace TestWebKitAPI

#endif // PLATFORM(IOS_FAMILY)