/*
 * Copyright (C) 2016 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 "DeprecatedGlobalValues.h"
#import "PlatformUtilities.h"
#import "Test.h"
#import <WebKit/WebKit.h>
#import <WebKit/WKProcessPoolPrivate.h>
#import <WebKit/WKUserContentControllerPrivate.h>
#import <WebKit/WKWebViewConfigurationPrivate.h>
#import <WebKit/WKWebViewPrivate.h>
#import <WebKit/_WKProcessPoolConfiguration.h>
#import <WebKit/_WKUserStyleSheet.h>
#import <wtf/Deque.h>
#import <wtf/RetainPtr.h>

@interface IndexedDBWebProcessKillMessageHandler : NSObject <WKScriptMessageHandler>
@end

@implementation IndexedDBWebProcessKillMessageHandler

- (void)userContentController:(WKUserContentController *)userContentController didReceiveScriptMessage:(WKScriptMessage *)message
{
    receivedScriptMessage = true;
    scriptMessages.append(message);
}

@end

TEST(IndexedDB, WebProcessKillIDBCleanup)
{
    RetainPtr<IndexedDBWebProcessKillMessageHandler> handler = adoptNS([[IndexedDBWebProcessKillMessageHandler alloc] init]);
    RetainPtr<WKWebViewConfiguration> configuration = adoptNS([[WKWebViewConfiguration alloc] init]);
    [[configuration userContentController] addScriptMessageHandler:handler.get() name:@"testHandler"];

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

    NSURLRequest *request = [NSURLRequest requestWithURL:[NSBundle.test_resourcesBundle URLForResource:@"WebProcessKillIDBCleanup-1" withExtension:@"html"]];
    [webView loadRequest:request];

    auto string1 = RetainPtr { getNextMessage().body };
    auto string2 = RetainPtr { getNextMessage().body };
    auto string3 = RetainPtr { getNextMessage().body };
    auto string4 = RetainPtr { getNextMessage().body };

    // Make a new web view with a new web process to finish the test
    RetainPtr<WKWebView> webView2 = adoptNS([[WKWebView alloc] initWithFrame:NSMakeRect(0, 0, 800, 600) configuration:configuration.get()]);

    request = [NSURLRequest requestWithURL:[NSBundle.test_resourcesBundle URLForResource:@"WebProcessKillIDBCleanup-2" withExtension:@"html"]];
    [webView2 loadRequest:request];

    auto string5 = RetainPtr { getNextMessage().body };

    // Kill the first web process to unblock the second web processes transaction from starting.
    [webView _killWebContentProcessAndResetState];

    auto string6 = RetainPtr { getNextMessage().body };

    EXPECT_WK_STREQ(@"UpgradeNeeded", string1.get());
    EXPECT_WK_STREQ(@"Transaction complete", string2.get());
    EXPECT_WK_STREQ(@"Open success", string3.get());
    EXPECT_WK_STREQ(@"Infinite Transaction Started", string4.get());
    EXPECT_WK_STREQ(@"Second open success", string5.get());
    EXPECT_WK_STREQ(@"Second WebView Transaction Started", string6.get());
}

TEST(IndexedDB, KillWebProcessWithOpenConnection)
{
    auto handler = adoptNS([[IndexedDBWebProcessKillMessageHandler alloc] init]);
    auto configuration = adoptNS([[WKWebViewConfiguration alloc] init]);
    [[configuration userContentController] addScriptMessageHandler:handler.get() name:@"testHandler"];

    __block bool readyToContinue = false;
    [configuration.get().websiteDataStore removeDataOfTypes:[NSSet setWithObjects:WKWebsiteDataTypeIndexedDBDatabases, nil] modifiedSince:[NSDate distantPast] completionHandler:^() {
        readyToContinue = true;
    }];
    TestWebKitAPI::Util::run(&readyToContinue);

    auto webView1 = adoptNS([[WKWebView alloc] initWithFrame:NSMakeRect(0, 0, 800, 600) configuration:configuration.get()]);
    NSURLRequest *request1 = [NSURLRequest requestWithURL:[NSBundle.test_resourcesBundle URLForResource:@"KillWebProcessWithOpenConnection-1" withExtension:@"html"]];
    [webView1 loadRequest:request1];
    auto string1 = RetainPtr { getNextMessage().body };
    EXPECT_WK_STREQ(@"Open Succeeded", string1.get());

    auto webView2 = adoptNS([[WKWebView alloc] initWithFrame:NSMakeRect(0, 0, 800, 600) configuration:configuration.get()]);
    NSURLRequest *request2 = [NSURLRequest requestWithURL:[NSBundle.test_resourcesBundle URLForResource:@"KillWebProcessWithOpenConnection-2" withExtension:@"html"]];
    [webView2 loadRequest:request2];
    auto string2 = RetainPtr { getNextMessage().body };
    EXPECT_WK_STREQ(@"Version Change", string2.get());

    // Second database request in webView2 should not be processed.
    [webView2 _killWebContentProcessAndResetState];
    [webView1 _killWebContentProcessAndResetState];

    [webView1 reload];
    auto string3 = RetainPtr { getNextMessage().body };
    EXPECT_WK_STREQ(@"Open Succeeded", string3.get());
}