/*
 * 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 "Test.h"
#import <WebKit/WKWebView.h>
#import <wtf/RetainPtr.h>

static bool shouldAccept = true;
static bool navigationComplete = false;
static bool navigationFailed = false;

@interface TestAsyncNavigationDelegate : NSObject <WKNavigationDelegate, WKUIDelegate>
@end

@implementation TestAsyncNavigationDelegate

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

- (void)webView:(WKWebView *)webView didFailNavigation:(WKNavigation *)navigation withError:(NSError *)error
{
    navigationFailed = true;
    navigationComplete = true;
    webView.navigationDelegate = nil;
}

- (void)webView:(WKWebView *)webView didFailProvisionalNavigation:(WKNavigation *)navigation withError:(NSError *)error
{
    navigationFailed = true;
    navigationComplete = true;
    webView.navigationDelegate = nil;
}

- (void)webView:(WKWebView *)webView decidePolicyForNavigationAction:(WKNavigationAction *)navigationAction decisionHandler:(void (^)(WKNavigationActionPolicy))decisionHandler
{
    decisionHandler(WKNavigationActionPolicyAllow);
}

- (void)webView:(WKWebView *)webView decidePolicyForNavigationResponse:(WKNavigationResponse *)navigationResponse decisionHandler:(void (^)(WKNavigationResponsePolicy))decisionHandler
{
    int64_t deferredWaitTime = 100 * NSEC_PER_MSEC;
    dispatch_time_t when = dispatch_time(DISPATCH_TIME_NOW, deferredWaitTime);
    dispatch_after(when, dispatch_get_main_queue(), ^{
        decisionHandler(shouldAccept ? WKNavigationResponsePolicyAllow : WKNavigationResponsePolicyCancel);
    });
}
@end

namespace TestWebKitAPI {

TEST(WebKit, RespondToPolicyForNavigationResponseAsynchronously)
{
    RetainPtr<NSURL> testURL = [[NSBundle mainBundle] URLForResource:@"simple" withExtension:@"html" subdirectory:@"TestWebKitAPI.resources"];

    auto webView = adoptNS([[WKWebView alloc] init]);
    auto delegate = adoptNS([[TestAsyncNavigationDelegate alloc] init]);
    [webView setNavigationDelegate:delegate.get()];
    [webView setUIDelegate:delegate.get()];

    shouldAccept = true;
    navigationFailed = false;
    navigationComplete = false;
    [webView loadRequest:[NSURLRequest requestWithURL:testURL.get()]];
    TestWebKitAPI::Util::run(&navigationComplete);

    EXPECT_FALSE(navigationFailed);
}

TEST(WebKit, PolicyForNavigationResponseCancelAsynchronously)
{
    RetainPtr<NSURL> testURL = [[NSBundle mainBundle] URLForResource:@"simple" withExtension:@"html" subdirectory:@"TestWebKitAPI.resources"];

    auto webView = adoptNS([[WKWebView alloc] init]);
    auto delegate = adoptNS([[TestAsyncNavigationDelegate alloc] init]);
    [webView setNavigationDelegate:delegate.get()];
    [webView setUIDelegate:delegate.get()];

    shouldAccept = false;
    navigationFailed = false;
    navigationComplete = false;
    [webView loadRequest:[NSURLRequest requestWithURL:testURL.get()]];
    TestWebKitAPI::Util::run(&navigationComplete);

    EXPECT_TRUE(navigationFailed);
}

} // namespace TestWebKitAPI