/*

 * Copyright (C) 2006, 2007 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. 

 * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of

 *     its contributors may be used to endorse or promote products derived

 *     from this software without specific prior written permission. 

 *

 * THIS SOFTWARE IS PROVIDED BY APPLE 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 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 <Cocoa/Cocoa.h>

#import <CoreFoundation/CoreFoundation.h>

void displayErrorAndQuit(NSString *title, NSString *message)

{

    NSApplicationLoad();

    NSRunCriticalAlertPanel(title, message, @"Quit", nil, nil);

    exit(0);

}

void checkMacOSXVersion()

{

    long versionNumber = 0;

    OSErr error = Gestalt(gestaltSystemVersion, &versionNumber);

    if (error != noErr || versionNumber < 0x1040)

        displayErrorAndQuit(@"Mac OS X 10.4 is Required", @"Nightly builds of Drosera require Mac OS X 10.4 or newer.");

}

static void myExecve(NSString *executable, NSArray *args, NSDictionary *environment)

{

    char **argv = (char **)calloc(sizeof(char *), [args count] + 1);

    char **env = (char **)calloc(sizeof(char *), [environment count] + 1);

    NSEnumerator *e = [args objectEnumerator];

    NSString *s;

    int i = 0;

    while (s = [e nextObject])

        argv[i++] = (char *) [s UTF8String];

    e = [environment keyEnumerator];

    i = 0;

    while (s = [e nextObject])

        env[i++] = (char *) [[NSString stringWithFormat:@"%@=%@", s, [environment objectForKey:s]] UTF8String];

    execve([executable fileSystemRepresentation], argv, env);

}

int main(int argc, char *argv[])

{

    NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];

    checkMacOSXVersion();

    CFURLRef webkitURL = nil;

    OSStatus err = LSFindApplicationForInfo(kLSUnknownCreator, CFSTR("org.webkit.nightly.WebKit"), nil, nil, &webkitURL);

    if (err != noErr)

        displayErrorAndQuit(@"Unable to locate WebKit.app", @"Drosera nightly builds require WebKit.app to run. Please check that it is available and then try again.");

    NSBundle *webKitAppBundle = [NSBundle bundleWithPath:[(NSURL *)webkitURL path]];

    NSString *frameworkPath = [webKitAppBundle resourcePath];

    NSBundle *droseraBundle = [NSBundle bundleWithPath:[[NSBundle mainBundle] pathForResource:@"Drosera" ofType:@"app"]];

    NSString *executablePath = [droseraBundle executablePath];

    NSString *pathToEnablerLib = [webKitAppBundle pathForResource:@"WebKitNightlyEnabler" ofType:@"dylib"];

    NSMutableArray *arguments = [NSMutableArray arrayWithObjects:executablePath, @"-WebKitDeveloperExtras", @"YES", nil];

    while (*++argv)

        [arguments addObject:[NSString stringWithUTF8String:*argv]];

    NSDictionary *environment = [NSDictionary dictionaryWithObjectsAndKeys:frameworkPath, @"DYLD_FRAMEWORK_PATH",

        @"YES", @"WEBKIT_UNSET_DYLD_FRAMEWORK_PATH", pathToEnablerLib, @"DYLD_INSERT_LIBRARIES",

        [[NSBundle mainBundle] executablePath], @"WebKitAppPath", nil];

    myExecve(executablePath, arguments, environment);

    char *error = strerror(errno);

    NSString *errorMessage = [NSString stringWithFormat:@"Launching Drosera at %@ failed with the error '%s' (%d)", [(NSURL *)webkitURL path], error, errno];

    displayErrorAndQuit(@"Unable to launch Drosera", errorMessage);

    [pool release];

    return 0;

}