/*
 * Copyright (C) 2018 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"

#import "PlatformUtilities.h"
#import "Utilities.h"
#import "WKWebViewConfigurationExtras.h"
#import <WebKit/WKFoundation.h>
#import <WebKit/WKNavigationDelegatePrivate.h>
#import <WebKit/WKProcessPoolPrivate.h>
#import <WebKit/WKWebViewPrivate.h>
#import <WebKit/_WKProcessPoolConfiguration.h>
#import <wtf/RetainPtr.h>

static bool done;

@interface DoubleDefersNavigationDelegate : NSObject <WKNavigationDelegate>
@end

@implementation DoubleDefersNavigationDelegate

- (void)_webView:(WKWebView *)webView navigation:(WKNavigation *)navigation didSameDocumentNavigation:(_WKSameDocumentNavigationType)navigationType
{
    done = true;
}

- (void)webView:(WKWebView *)webView didFinishNavigation:(WKNavigation *)navigation
{
    done = true;
}

@end

@interface DefersScheme : NSObject <WKURLSchemeHandler> {
    const char* _bytes;
}
- (instancetype)initWithBytes:(const char*)bytes;
@end

@implementation DefersScheme

- (instancetype)initWithBytes:(const char*)bytes
{
    self = [super init];
    _bytes = bytes;
    return self;
}

- (void)webView:(WKWebView *)webView startURLSchemeTask:(id <WKURLSchemeTask>)task
{
    RetainPtr<NSURLResponse> response = adoptNS([[NSURLResponse alloc] initWithURL:task.request.URL MIMEType:@"text/html" expectedContentLength:1 textEncodingName:nil]);
    [task didReceiveResponse:response.get()];

    RetainPtr<NSData> data = adoptNS([[NSData alloc] initWithBytesNoCopy:(void *)_bytes length:strlen(_bytes) freeWhenDone:NO]);
    [task didReceiveData:data.get()];

    [task didFinish];
}

- (void)webView:(WKWebView *)webView stopURLSchemeTask:(id <WKURLSchemeTask>)task
{
}

@end

static const char* testBytes = R"DEFERSRESOURCE(
Hello<br>
<div id="fragment">There</div>
)DEFERSRESOURCE";


TEST(WebKit, DoubleDefersLoading)
{
    RetainPtr<WKWebViewConfiguration> configuration = retainPtr([WKWebViewConfiguration _test_configurationWithTestPlugInClassName:@"DoubleDefersLoadingPlugIn"]);

    _WKProcessPoolConfiguration *processPoolConfiguration = [configuration processPool]._configuration;
    auto processPool = adoptNS([[WKProcessPool alloc] _initWithConfiguration:processPoolConfiguration]);
    [processPool _setObject:@"DoubleDefersLoadingPlugIn" forBundleParameter:TestWebKitAPI::Util::TestPlugInClassNameParameter];
    [configuration setProcessPool:processPool.get()];

    RetainPtr<DefersScheme> handler = adoptNS([[DefersScheme alloc] initWithBytes:testBytes]);
    [configuration setURLSchemeHandler:handler.get() forURLScheme:@"defers"];

    RetainPtr<WKWebView> webView = adoptNS([[WKWebView alloc] initWithFrame:NSMakeRect(0, 0, 800, 600) configuration:configuration.get()]);
    auto delegate = adoptNS([[DoubleDefersNavigationDelegate alloc] init]);
    [webView setNavigationDelegate:delegate.get()];

    NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:@"defers://host/main1.html"]];
    [webView loadRequest:request];

    TestWebKitAPI::Util::run(&done);
    done = false;

    request = [NSURLRequest requestWithURL:[NSURL URLWithString:@"defers://host/main1.html#fragment"]];
    [webView loadRequest:request];

    TestWebKitAPI::Util::run(&done);
    done = false;

    [webView _setDefersLoadingForTesting:YES];
    [webView goBack];
    [webView _setDefersLoadingForTesting:NO];

    TestWebKitAPI::Util::run(&done);
    done = false;
}